CN110734247A - kinds of dry cement mortar powder - Google Patents
kinds of dry cement mortar powder Download PDFInfo
- Publication number
- CN110734247A CN110734247A CN201911031968.XA CN201911031968A CN110734247A CN 110734247 A CN110734247 A CN 110734247A CN 201911031968 A CN201911031968 A CN 201911031968A CN 110734247 A CN110734247 A CN 110734247A
- Authority
- CN
- China
- Prior art keywords
- cement mortar
- powder
- kinds
- dry powder
- mortar dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011083 cement mortar Substances 0.000 title claims abstract description 99
- 239000000843 powder Substances 0.000 title claims abstract description 94
- -1 sodium fatty alcohol Chemical class 0.000 claims abstract description 22
- 230000008719 thickening Effects 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 16
- 239000011707 mineral Substances 0.000 claims abstract description 16
- HSHXDCVZWHOWCS-UHFFFAOYSA-N N'-hexadecylthiophene-2-carbohydrazide Chemical compound CCCCCCCCCCCCCCCCNNC(=O)c1cccs1 HSHXDCVZWHOWCS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000440 bentonite Substances 0.000 claims abstract description 15
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 15
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 15
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 9
- ITCAUAYQCALGGV-XTICBAGASA-M sodium;(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound [Na+].C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O ITCAUAYQCALGGV-XTICBAGASA-M 0.000 claims abstract description 8
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 8
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229940044172 calcium formate Drugs 0.000 claims abstract description 6
- 235000019255 calcium formate Nutrition 0.000 claims abstract description 6
- 239000004281 calcium formate Substances 0.000 claims abstract description 6
- 239000010881 fly ash Substances 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 5
- 150000001408 amides Chemical class 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 5
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 5
- 239000005060 rubber Substances 0.000 claims abstract description 5
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 66
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 15
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical group [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 3
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000001828 Gelatine Substances 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 229920000159 gelatin Polymers 0.000 claims 1
- 235000019322 gelatine Nutrition 0.000 claims 1
- 238000004078 waterproofing Methods 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 229920000573 polyethylene Polymers 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 239000004927 clay Substances 0.000 description 11
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 11
- 229920002401 polyacrylamide Polymers 0.000 description 11
- 159000000000 sodium salts Chemical class 0.000 description 11
- 230000002829 reductive effect Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/46—Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to kinds of cement mortar dry powder which comprises, by mass, 35-45% of yellow sand, 20-25% of fly ash, 15-20% of cement, 5-15% of mineral powder, 5-10% of stone powder, 2-4% of polyurethane foam particles, 1-2% of thickening powder, 0.1-0.3% of a waterproof agent, 0.2-0.3% of sodium fatty alcohol polyethylene sulfonate, 0.15-0.25% of sodium abietate, 0.1-0.2% of silicone amide and 0.01-0.02% of calcium formate, wherein the thickening powder comprises, by weight, 420kg/t of bentonite 380-containing material, 30-45kg/t of rubber powder, 20-30kg/t of hydroxypropyl methyl cellulose, 15-20kg/t of sodium polyacrylate and 2-5kg/t of a water reducing agent.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to kinds of cement mortar dry powder.
Background
Dry cement mortar powder, also called dry powder mortar and dry mixed powder, refers to kinds of granular or powdery materials prepared by physically mixing dry screened aggregate, inorganic cementing material, additive and the like according to proportion, the dry cement mortar powder is usually transported to a construction site in a bag or in bulk for standby use, and can be directly used after being mixed with water.
The wall plastering refers to a surface layer project which mixes and stirs cement mortar dry powder and clear water into the cement mortar according to fixed proportion and then uniformly coats the cement mortar on the wall, the indoor and outdoor wall plastering work is work after the construction of a building structure is finished, the scientific plastering work can play the functions of moisture prevention, weathering prevention, heat insulation and the like, and the wall body of the building is prevented from being eroded by wind, rain, snow and the like, the concrete wall surface constructed by the large formwork is smooth and flat, but the wall body constructed by the large formwork needs to be plastered and straightened at the positions of the joint of a longitudinal wall and a transverse wall, the joint of an upper layer and a lower layer of a staircase, a .
The existing cement mortar dry powder is usually prepared by mixing raw materials such as cement, fly ash, yellow sand and the like, a cement mortar mixture prepared by adding water and mixing is poor in water retention property, a water permeable channel is easily formed in the cement mortar mixture, the compactness of the cement mortar mixture is influenced, and the strength and the durability of the cement mortar are reduced.
Disclosure of Invention
The invention aims to provide cement mortar dry powder which has the effect of improving the physical and chemical properties of a cement mortar mixture.
The technical purpose of the invention is realized by the following technical scheme that kinds of cement mortar dry powder comprises, by mass, 34-38% of yellow sand, 20-25% of fly ash, 12-15% of cement, 6-10% of mineral powder, 5-8% of stone powder, 1-2% of thickening powder and 0.1-0.3% of a waterproof agent.
By adopting the technical scheme, a proper amount of mineral powder and fly ash are compounded for use, so that a synergistic effect is achieved, the workability of the cement mortar mixture is effectively improved, and the compactness of micropores in the cement mortar mixture is improved, so that the defects of segregation and bleeding of the cement mortar mixture are overcome, and the water retention and anti-permeability performance of the cement mortar mixture are improved; the mineral powder has the function of reducing cracks of the cement mortar mixture caused by inhibiting the change of temperature difference, so that the later strength of the cement mortar mixture is enhanced; the mineral powder also has the functions of improving the fluidity of the cement mortar mixture and reducing the hydration heat of the cement mortar mixture so as to improve the binding power of the cement mortar mixture; because the cost of the cement is higher than that of the mineral powder, the addition of the mineral powder effectively reduces the consumption of the cement, thereby reducing the production cost of the cement mortar dry powder.
The invention is further , wherein the components further comprise sodium fatty alcohol polyvinyl sulfonate 0.2-0.3%, sodium abietate 0.15-0.25%, and silicone amide 0.1-0.2%.
By adopting the technical scheme, the sodium fatty alcohol polyethylene sulfonate and the sodium abietate have higher surface activity, can effectively reduce the surface tension of the cement mortar mixture, and form a double-electronic-layer arrangement structure on the surface of a cement mortar mixture liquid film so as to surround air to form a large number of micro bubbles, the micro bubbles are like balls , the friction resistance among component particles is reduced, the fluidity of the cement mortar mixture is increased, meanwhile, because the water is uniformly distributed on the surfaces of the micro bubbles, the freely moving water quantity is reduced, the bleeding quantity of the cement mortar mixture is reduced, and the water retention performance of the cement mortar mixture is improved;
the silicone amide has strong dispersibility, can uniformly disperse and suspend solid particles in a cement mortar mixture, and has the effect of improving the cohesiveness of the cement mortar mixture when the mixture is prepared by adding water; the silicone amide has the effects of obviously improving the air hole structure and reducing the hole string, thereby improving the strength of the cement mortar mixture and reducing the probability of die collapse.
The invention is further wherein the composition further comprises polyurethane foam particles 2-4%.
By adopting the technical scheme, the polyurethane foam particles have a good heat insulation effect and are used for making up the defect of insufficient heat insulation performance of cement mortar, so that the heat insulation performance of the wall plastering layer is improved, and the polyurethane foam particles also have the flame retardant effect of , so that the flame retardant performance of the plastering layer is improved.
The invention is further set in step that the components also comprise 0.01-0.02% of calcium formate.
By adopting the technical scheme, the calcium formate is used for improving the hardening speed of the cement mortar mixture and shortening the setting time, so that the early strength of the cement mortar mixture is improved.
The invention is further set in step that the waterproof agent is calcium stearate.
By adopting the technical scheme, the hydrophobic groups in the calcium stearate are blocked in the capillary holes of the cement mortar mixture, so that the waterproof effect is achieved, the impermeability, the workability and the compactness of the cement mortar mixture are improved, and the compressive strength of the cement mortar mixture is improved.
The invention is further set in step that the thickening powder comprises the following components, by weight, 380-420kg/t of bentonite, 30-45kg/t of rubber powder, 20-30kg/t of hydroxypropyl methyl cellulose, 15-20kg/t of sodium polyacrylate and 2-5kg/t of a water reducing agent.
Through adopting above-mentioned technical scheme, bentonite, rubber powder, hydroxypropyl methylcellulose and sodium polyacrylate are all through the physical adsorption to the hydrone to reach the effect that makes cement mortar mixture thickening, water retention, the interpolation of thickening powder has reduced the use cost of cement, has improved the bonding force between the cement mortar mixture molecule, thereby has improved the intensity of cement mortar mixture.
The invention is further set in that the water reducing agent is calcium lignosulfonate and sodium lignosulfonate with the mass fraction ratio of 1 (0.4-0.8).
By adopting the technical scheme, the hydrophobic groups of the sodium lignosulfonate and the calcium lignosulfonate are directionally adsorbed on the surfaces of the cement particles, the hydrophilic groups are directed to the aqueous solution, and a monomolecular or multi-molecular adsorption membrane is formed, so that the cement particles are dispersed due to mutual repulsion of the same charges on the surfaces, and redundant water is released from the particles.
The invention is further set in that the rubber powder is styrene-butadiene rubber powder.
By adopting the technical scheme, the styrene-butadiene rubber powder has good film forming property and good tensile strength after film forming, so that the styrene-butadiene rubber powder not only has good thickening property, but also has the performance of improving the tensile strength of a cement mortar mixture.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the mineral powder and the fly ash with proper amount are compounded for use, so that the synergistic effect is achieved, the workability of the cement mortar mixture is effectively improved, and the compactness of micropores in the cement mortar mixture is improved, so that the defects of segregation and bleeding of the cement mortar mixture are overcome, and the water retention and anti-permeability performance of the cement mortar mixture is improved;
2. the mineral powder also has the functions of improving the fluidity of the cement mortar mixture and reducing the hydration heat of the cement mortar mixture so as to improve the binding power of the cement mortar mixture;
3. the sodium fatty alcohol polyvinyl sulfonate and the sodium abietate have higher surface activity, can effectively reduce the surface tension of the cement mortar mixture, form a large amount of micro bubbles on the surface of a liquid film of the cement mortar mixture, and uniformly distribute water on the surface of the micro bubbles to reduce the amount of freely moving water, thereby reducing the bleeding amount of the cement mortar mixture and improving the water retention performance of the cement mortar mixture;
4. a large amount of micro bubbles formed by adding the sodium fatty alcohol polyethylene sulfonate and the sodium abietate block or obstruct capillary water seepage channels in the cement mortar mixture, change the inner hole structure of the cement mortar mixture and improve the impermeability of the cement mortar mixture.
Detailed Description
Example 1, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Example 2 discloses kinds of cement mortar dry powder, which comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Example 3 discloses kinds of cement mortar dry powder, which comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Example 4 discloses kinds of cement mortar dry powder, which comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 380 | Polyacrylamide sodium salt | 15 |
| Styrene-butadiene rubber powder | 30 | Lignosulfonic acid calcium salt | 1.25 |
| Hydroxypropyl methylcellulose | 20 | Lignosulfonic acid sodium salt | 0.75 |
Example 5 discloses kinds of cement mortar dry powder, which comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 420 | Polyacrylamide sodium salt | 20 |
| Styrene-butadiene rubber powder | 45 | Lignosulfonic acid calcium salt | 3.1 |
| Hydroxypropyl methylcellulose | 30 | Lignosulfonic acid sodium salt | 1.9 |
Comparative example 1, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Comparative example 2, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Comparative example 3, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Comparative example 4, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Comparative example 5, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Comparative example 6, kinds of cement mortar dry powder disclosed by the invention comprises the following components in percentage by mass:
the thickening powder comprises the following components in parts by weight:
| components | Parts by weight (kg/t) | Components | Parts by weight (kg/t) |
| Bentonite clay | 400 | Polyacrylamide sodium salt | 18 |
| Styrene-butadiene rubber powder | 38 | Lignosulfonic acid calcium salt | 2.2 |
| Hydroxypropyl methylcellulose | 25 | Lignosulfonic acid sodium salt | 1.3 |
Performance test
Sampling the dry powder in examples 1-5 and comparative examples 1-6, selecting 10 parts of dry powder with the same weight for each group, adding equal amount of water under the same condition to mix into a cement mortar mixture, detecting the water retention, impermeability and compressive strength of the cement mortar mixture, and recording the detection results in table 1;
and (3) water retention detection: detecting according to GB/T3183-2003;
the impermeability detection comprises the steps of adopting a direct current electric quantity method, putting a sample under vacuum for saturation, continuously electrifying for 6h after sealing, recording times of current every 30min, and recording the total electric quantity in 6h, wherein the total electric quantity is more than 4000, the permeability is high, the total electric quantity is 2000-4000, the permeability is medium, the total electric quantity is less than 2000, and the permeability is low;
and (3) detecting the compressive strength: based on the compression test results of the samples subjected to standard maintenance (20 ℃ at 2 ℃, humidity of 90% and age of 28d), a compression test was performed by using a compression tester.
Table 1-data of physical and chemical property measurements of samples of examples 1-5 and comparative examples 1-6
As can be seen from the various physical and chemical property test data of the cement mortar mixtures of examples 1-3 in Table 1: the cement mortar dry powder prepared by the formula has excellent water retention, impermeability and compressive strength; the addition amount of each component of the cement mortar dry powder is changed in a reasonable range, and the influence on the water retention, impermeability and compressive strength of the cement mortar mixture is small;
the physical and chemical property test data of the cement mortar mixture of example 1 and examples 4-5 in table 1 show that: the addition amount of each component in the thickening powder is changed within a reasonable range, and the influence on the water retention property, the impermeability and the compressive strength of the cement mortar mixture is small;
as can be seen from the various physical and chemical property test data of the cement mortar blends of example 1 and comparative examples 1-3 in Table 1: after the mineral powder is deleted, the water retention rate of the cement mortar mixture is obviously reduced, the total electric quantity is obviously increased, and the reduction range of the compressive strength is small, so that the mineral powder has a promoting effect on improving the water retention and impermeability of the cement mortar mixture; when the addition amount of the mineral powder is too much, the water retention rate of the cement mortar mixture is not increased or inversely decreased, the total electric quantity is increased compared with the numerical value in the comparative example 1, the compressive strength is not changed greatly, the addition amount of the mineral powder is not too much, and otherwise adverse effect can be possibly caused; when the addition amount of the mineral powder is too small, the water retention rate of the cement mortar mixture is increased compared with that of comparative example 1, but is reduced compared with that of example 1, and the total electric quantity of the cement mortar mixture is reduced compared with that of comparative example 1, but is increased compared with that of example 1, which indicates that the addition of the mineral powder needs to be controlled within a proper range, so that the water retention rate and the impermeability of the cement mortar mixture can be obviously improved;
as can be seen from the various physical and chemical property test data of the cement mortar blends of example 1 and comparative examples 4-5 in Table 1: the fatty alcohol polyethylene sodium sulfonate or the sodium abietate is deleted, the water retention rate and the compressive strength of the cement mortar mixture are both reduced, and the total electric quantity is increased, which shows that the fatty alcohol polyethylene sodium sulfonate or the sodium abietate have the function of improving the water retention, the impermeability and the compressive strength of the cement mortar mixture;
the physicochemical property test data of the cement mortar mixtures of example 1 and comparative example 6 in table 1 show that: the calcium formate is deleted, the compressive strength of the cement mortar mixture is obviously reduced, and the effect of the calcium formate on improving the compressive strength of the cement mortar mixture is shown.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1, kinds of cement mortar dry powder, which comprises the following components, by mass, 35-45% of yellow sand, 20-25% of fly ash, 15-20% of cement, 5-15% of mineral powder, 5-10% of stone powder, 1-2% of thickening powder and 0.1-0.3% of a waterproof agent.
2. The kinds of cement mortar dry powder of claim 1, wherein the constituents further include sodium fatty alcohol polyvinyl sulfonate 0.2-0.3%, sodium abietate 0.15-0.25%, and silicone amide 0.1-0.2%.
3. kinds of cement mortar dry powder according to claim 1, wherein the components further comprise polyurethane foam particles 2-4%.
4. The kinds of cement mortar dry powder of claim 1, wherein said composition further comprises 0.01-0.02% calcium formate.
5. kinds of cement mortar dry powder according to claim 1, wherein the water-proofing agent is calcium stearate.
6. The kinds of cement mortar dry powder as claimed in claim 1, wherein the thickening powder comprises, by weight, 380-420kg/t bentonite, 30-45kg/t gelatine powder, 20-30kg/t hydroxypropyl methylcellulose, 15-20kg/t sodium polyacrylate and 2-5kg/t water reducing agent.
7. The kinds of cement mortar dry powder of claim 6, wherein the water reducing agent is calcium lignosulfonate and sodium lignosulfonate with a mass fraction ratio of 1 (0.4-0.8).
8. The kinds of cement mortar dry powder of claim 6, wherein the rubber powder is styrene-butadiene rubber powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031968.XA CN110734247A (en) | 2019-10-28 | 2019-10-28 | kinds of dry cement mortar powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031968.XA CN110734247A (en) | 2019-10-28 | 2019-10-28 | kinds of dry cement mortar powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110734247A true CN110734247A (en) | 2020-01-31 |
Family
ID=69271770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031968.XA Pending CN110734247A (en) | 2019-10-28 | 2019-10-28 | kinds of dry cement mortar powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110734247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704429A (en) * | 2020-06-12 | 2020-09-25 | 山东亮普建材科技有限公司 | Mortar prepared from solid waste light aggregate of thermal power plant as raw material, mortar preparation method and prepared prefabricated part |
| CN111848003A (en) * | 2020-07-27 | 2020-10-30 | 苏州顺林砂浆有限公司 | A kind of plastering mortar dry powder and preparation method of plastering mortar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060128780A (en) * | 2006-11-20 | 2006-12-14 | 최대성 | Polymer cement mortar composition for surface finish and concrete protection of waterproof and durable concrete |
| CN101913813A (en) * | 2010-08-17 | 2010-12-15 | 张云区 | Wall plastering and building solidifying material |
| CN104310837A (en) * | 2014-09-30 | 2015-01-28 | 江苏东尚新型建材有限公司 | Dry-mixed mortar and additive thereof |
| CN105366984A (en) * | 2015-12-08 | 2016-03-02 | 科之杰新材料集团有限公司 | Wet-mixed mortar water-retention plasticizer, and preparation method thereof |
| CN107522450A (en) * | 2017-09-04 | 2017-12-29 | 东南大学 | A kind of impervious waterproof mortar of high flexibility |
| CN109776049A (en) * | 2019-02-26 | 2019-05-21 | 佛山市志必合材料有限公司 | A kind of waterproof mortar and water-proof concrete and preparation method thereof |
-
2019
- 2019-10-28 CN CN201911031968.XA patent/CN110734247A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060128780A (en) * | 2006-11-20 | 2006-12-14 | 최대성 | Polymer cement mortar composition for surface finish and concrete protection of waterproof and durable concrete |
| CN101913813A (en) * | 2010-08-17 | 2010-12-15 | 张云区 | Wall plastering and building solidifying material |
| CN104310837A (en) * | 2014-09-30 | 2015-01-28 | 江苏东尚新型建材有限公司 | Dry-mixed mortar and additive thereof |
| CN105366984A (en) * | 2015-12-08 | 2016-03-02 | 科之杰新材料集团有限公司 | Wet-mixed mortar water-retention plasticizer, and preparation method thereof |
| CN107522450A (en) * | 2017-09-04 | 2017-12-29 | 东南大学 | A kind of impervious waterproof mortar of high flexibility |
| CN109776049A (en) * | 2019-02-26 | 2019-05-21 | 佛山市志必合材料有限公司 | A kind of waterproof mortar and water-proof concrete and preparation method thereof |
Non-Patent Citations (6)
| Title |
|---|
| 何公霖，杨龙龙，唐海艳: "《建筑装饰工程材料与构造》", 31 January 2017, 重庆大学出版社 * |
| 张彬: "《混凝土与砂浆配合比手册》", 30 November 2012, 天津大学出版社 * |
| 耿加会，余春荣，刘志杰: "《商品混凝土生产与应用技术》", 30 November 2015, 中国建材工业出版社 * |
| 郭群等: "《砂浆实验及检测培训教材》", 30 September 2014, 中国建材工业出版社 * |
| 陈建奎: "《混凝土外加剂的原理与应用》", 30 April 1997, 中国计划出版社 * |
| 陈春滋，李书田: "《建筑节能设计与施工技术》", 31 July 2011, 中国物资出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704429A (en) * | 2020-06-12 | 2020-09-25 | 山东亮普建材科技有限公司 | Mortar prepared from solid waste light aggregate of thermal power plant as raw material, mortar preparation method and prepared prefabricated part |
| CN111848003A (en) * | 2020-07-27 | 2020-10-30 | 苏州顺林砂浆有限公司 | A kind of plastering mortar dry powder and preparation method of plastering mortar |
| CN111848003B (en) * | 2020-07-27 | 2022-04-05 | 苏州顺林砂浆有限公司 | A kind of plastering mortar dry powder and preparation method of plastering mortar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105152620B (en) | A kind of ardealite premixing dry-mixed mortar available for 3D printing | |
| BRPI0721955A2 (en) | ADDITIVE COMPOSITION FOR MINERAL BASED CONSTRUCTION MATERIAL | |
| CN102010166A (en) | Method for preparing micro expanded inorganic heat insulation mortar | |
| CN109354463A (en) | Impervious freeze proof C30 concrete of one kind and preparation method thereof | |
| CN111170758A (en) | Foam concrete, preparation method and application thereof | |
| CN106927759A (en) | For the concrete of Overlong Concrete Structure construction | |
| CN110734247A (en) | kinds of dry cement mortar powder | |
| CN111620589A (en) | Cement grouting material additive capable of adapting to various working conditions and improving performance of grouting material and preparation method and application thereof | |
| CN105777191A (en) | Nitrogen foam concrete and preparation method thereof | |
| GB2376462A (en) | A low cement concrete composition | |
| CN103723946B (en) | A kind of energy saving and environment friendly fresh concrete activator | |
| CN103803909B (en) | A kind of foam glass particle concrete | |
| CN109455979B (en) | Waterproof modified cement and preparation method thereof | |
| CN112897945A (en) | High-strength corrosion-resistant wet-spraying material for coal mine tunnel and construction process thereof | |
| CN109456007B (en) | Track laying C40 self-compacting concrete and preparation method thereof | |
| CN111575010A (en) | Soil curing agent capable of improving drying shrinkage performance of reinforced soil and preparation method thereof | |
| CN111116119A (en) | Green high-strength high-toughness concrete formula | |
| CN114163173A (en) | Lightweight concrete and preparation method thereof | |
| CN112174604A (en) | Dry-mixed masonry mortar | |
| KR102812325B1 (en) | Concrete composition for precast box structures and precast box structures using the same | |
| CN116425563B (en) | Bauxite tailing-based foam light soil and preparation method thereof | |
| CN116477864B (en) | Anti-cracking waterproof compacting agent, preparation method and use method | |
| CN112694307B (en) | Combined pile for foundation engineering and preparation method thereof | |
| CN109455991A (en) | A kind of concrete and preparation method thereof | |
| CN116283189B (en) | Thermal insulation plastering gypsum mortar and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200131 |
|
| RJ01 | Rejection of invention patent application after publication |