CN106045395A - Ecological energy-saving dry-mixed mortar - Google Patents
Ecological energy-saving dry-mixed mortar Download PDFInfo
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- CN106045395A CN106045395A CN201610369440.3A CN201610369440A CN106045395A CN 106045395 A CN106045395 A CN 106045395A CN 201610369440 A CN201610369440 A CN 201610369440A CN 106045395 A CN106045395 A CN 106045395A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 102
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000010881 fly ash Substances 0.000 claims abstract description 18
- 239000004576 sand Substances 0.000 claims abstract description 12
- 235000019738 Limestone Nutrition 0.000 claims abstract description 7
- 239000006028 limestone Substances 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims description 38
- 239000004568 cement Substances 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 239000002440 industrial waste Chemical group 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000008602 contraction Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 238000006703 hydration reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical group [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 239000012615 aggregate Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000272814 Anser sp. Species 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 241000337007 Oceania Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000004452 microanalysis Methods 0.000 description 1
- 238000003823 mortar mixing Methods 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001629 suppression Effects 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses ecological energy-saving dry-mixed mortar. The ecological energy-saving dry-mixed mortar is mainly made of limestone manufactured sand and industrial waste residue powder. The industrial waste residue powder comprises mineral powder and fly ash. The ecological energy-saving dry-mixed mortar has the advantages that the ecological energy-saving dry-mixed mortar is made of the industrial waste residue powder and common limestone sand, accordingly, energy can be saved, and environments can be protected; the ecological energy-saving dry-mixed mortar is good in performance.
Description
Technical field
The present invention relates to technology field of mortar, especially a kind of ecological energy-saving dry-mixed mortar.
Background technology
Dry powder and mortar (dry-mix) is also known as dry mash, dry-mixed mortar, dry powder building materials or dry-mixed mortar etc..It is by inorganic
The raw materials such as adhesive, organic adhesion agent, aggregate, filler and additive, are made by scientific ingredients, accurately calculating and industrialized production
Multi items multiduty premix powder body, as supply of commodities.The most only need to add a certain amount of mediation water, through uniformly
Mixing can use.
Compared with the traditional method of mixing mortar at the construction field (site), dry powder and mortar is used to improve efficiency of construction, guarantee
Construction quality, protection environment have obvious effect with the aspect such as save material, thus since the sixties in 20th century, dry powder sand
Slurry is able to flourish in European and American developed countries, is widely used, and pushes Asia, Oceania and Latin American countries to.
The development trend of China's dry powder and mortar: 20 end of the centurys, China starts by abroad introducing dry powder and mortar technology, and combines
Domestic raw material sources, makes an adjustment the formula of multiple different purposes dry powder and mortars, becomes effective in practical engineering application,
It may be said that the popularization and application of China's dry powder and mortar are the most in the ascendant, within 2005, national major area dry powder and mortar produces basic condition
It is shown in Table 1:
1 2005 years national major area dry powder and mortars of table produce basic condition
From the point of view of current development trend, China's development in terms of dry powder and mortar from now on be concentrated mainly on following some:
(1) development is in order to by industrial waste and dry powder and mortar kind that local material is main raw material(s).Flyash, slag, useless
The utilization of stone powder, refining slag, bentonite etc., is not only able to reduce the cost of dry powder and mortar, improves mortar performance, and favorably
In protection environment, economize on resources.How making good use of these industrial wastes is a very important problem.
(2) exploitation is suitable for the new varieties of newly built construction needs.Only develop comprehensive, to meet market demand all mortars
Kind, just can make its scope unrestricted, promotes creating favorable conditions smoothly for it.Along with dedicated mortar, the going out of extraordinary mortar
Existing, not only drive the development of dry powder and mortar, also for promoting the development of other industries to create conditions.
(3) production technology of oneself is developed.Production technology China of dry powder and mortar is the most immature at present, general manufacturing enterprise
Production line is all introduced from external, and its one production line of investment is typically at 2000～30,000,000 yuans, expensive.Only
Have and develop the production technology tallied with the national condition, could be that all-round construction dry powder and mortar enterprise creates conditions, not only reduce throwing
Money cost, and reduce production cost.
(4) coordinate mutually with materials for wall.Country is being devoted to promote the use of novel wall material always, thus develop with
The dedicated mortar that currently used Principal Blocks material matches is necessary.
Showing according to relevant information, original mortar is concentrated expression problem out during the use of novel wall material
Have:
1. mortar workability is bad, and building block absorbs water too much in building process, building block dehydration generation secondary in dry run
Drying shrinkage causes body of wall cracking；Mortar is built by laying bricks or stones the fullest, the quality problems such as cavity occurs.
2. mortar cohesion after dry solidification in novel wall material because of sectional dimension and the different of clay brick and
Occur cohering hypodynamic phenomenon, cause body of wall easy to crack under the influence of distortional stress.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of ecological energy-saving dry-mixed mortar, form environmental protection, performance is good.
In order to realize foregoing invention purpose, the present invention provides techniques below scheme: a kind of ecological energy-saving dry-mixed mortar, main
Wanting raw material is limestone Machine-made Sand and Industry Waste ground-slag, and Industry Waste ground-slag includes breeze and flyash.
Further, cement, the content of Industry Waste ground-slag and cement equivalent, breeze and flyash equivalent are also included.
Further, also including additive, additive includes that high water conservation polymer, the percent mass of high water conservation polymer contain
Amount is 10%.
Compared with prior art, the invention have the advantages that employing Industry Waste ground-slag and common limestone sand are raw material,
Energy-conserving and environment-protective, and the dry-mixed mortar performance obtained is good.
Accompanying drawing explanation
Fig. 1 is that the polymer volume of the present invention is to mortar early-age shrinkage strain figure；
Fig. 2 is the mortar SEM figure mixing with being not incorporated into polymer.
Detailed description of the invention
Describing the present invention below in conjunction with the accompanying drawings, the description of this part is only exemplary and explanatory, should not
Protection scope of the present invention is had any restriction effect.
One, this project prepares dry-mixed mortar with limestone matter Machine-made Sand and Industry Waste ground-slag for primary raw material, the work of selection
Industry waste residue powder is breeze and flyash.
Breeze Main chemical component is CaO, SiO2, Al2O3、Fe2O3Deng, its admixture being used as dry-mixed mortar can improve
Improve the combination property of dry-mixed mortar.Its effect shows: improve Binder Materials physics grating, the physisorption to Cl-,
Promoting later strength, improve impervious and resistance to corrosion, this character is favourable to conveying and the construction of high temperature season concrete.Also
The pore structure of dry-mixed mortar can be improved, reduce porosity and decrease maximum diameter of hole size, make dry-mixed mortar form sold stowing
Structure and microscopic parameter from tightly packed system.Powdered ore quality technical requirement is shown in Table 10:
Table 10 powdered ore quality and technical specification
The character of flyash and the effect in mortar thereof: the active effect of flyash, refer to the activity one-tenth of flyash in mortar
Divide chemical reaction, also referred to as volcano ash effect produced by (such as SiO2, Al2O3 etc.).The activity of flyash refers mainly to volcanic ash thing
Matter participates in Calx, the active SiO2 in the ability of hydration reaction, i.e. flyash between cement minerals and portland cement,
The ability of chemical reaction is carried out between the Ca (OH) 2 that Al2O3 composition and hydrated cementitious separate out.The active effect of flyash is conducive to
Receiving the Ca (OH) 2 that cement slurry one aggregate Interface district is enriched with, active reaction thing CSH gel can be with hole, filling interface district simultaneously
Gap, thus improve cement slurry one aggregate Interface structure.Flyash quality and technical specification are shown in Table 11:
Table 11 flyash quality and technical specification
Industry Waste ground-slag substitutes cement preparation research
According to JGJ/T 98-2001 " masonry mortar mix-design code ", the mortar institute of different brackets intensity can be calculated
Cement, sand and the water consumption scope needed, is shown in Table 12:
Table 12 masonry mortar basic match ratio material usage
The 15%-25% of Binder Materials can be accounted for according to doping quantity of fly ash in code, experiment is chosen Industry Waste ground-slag and substitutes 50% cement
High additive, flyash, breeze respectively mix 25%, as a example by the common masonry mortar of M5 and M7.5, be dry mixed preparation proportioning such as following table
13:
Table 13 dry-mixed masonry mortar match ratio
Blended stir after detect each performance indications, and contrast GB result such as table 14 below:
Commonly build M5.0 technical specification by laying bricks or stones:
Table 14 M5 and M7.5 mortar performance
It follows that when Industry Waste ground-slag substitution rate reaches 50%, produced dry-mixed mortar properties of product are better than national standard and want
Ask.
Two, additive comprises high water conservation polymer: hydroxypropyl methyl cellulose, polypropylene fibre, starch ether；
1, polymer has stronger water absorbing capacity, also has preferable water retention property simultaneously, it is added together with additive
In mortar, the interior sealing compound of function admirable can be become, mortar inside is carried out maintenance, improve mortar internal relative humidity, subtract
The self-constriction that few mortar is internally dry and produces, thus suppress mortar tearing tendency.According to Energy Saving Technique for Buildings in Our Country require and
The trend of industry development, universal produced problem when applying in conjunction with current premixing mortar, with reference to standard GB/T/T 25181-
The relevant regulations of 2010 and industry standard JG/T 230-2007 carries out the shrinkage research of premixing mortar.
Cement slurry occurs mainly in early days owing to shrinking the strain produced, and within 7 days, later strain facies is to steadily.Therefore emphasis
The shrinkage of research mortar 1d, 7d, by the early-age shrinkage performance test of maintenance premixing mortar in polymer, former 7d circle
The values of shrinkage strain of ring test specimen is index, the sealing compound impact on premixing mortar volume stability in research.Wherein shrinkage
Primary Reference " ASTM cement mortar and concrete ring type confined shrinkage cracking testing standard method " is tested.
Previous experiments achievement according to laboratory, the high water conservation polymer absorption of use is 14 times of own wt,
Tentatively draw initial M5 premixing mortar mixture ratio, as shown in Table 15.
The basic match ratio of table 15 M5 premixing mortar
Choosing content of stone powder is 14%, and wherein Machine-made Sand content of stone powder is 27.1%, can calculate fine sand (particle diameter is at 0-1.18mm)
Being 4310 × 14%/27.1%=2226g, medium sand (particle diameter is at 1.18-2.36mm) is 4310-2226=2084g, and densification powder volume is
0.04%, when high water conservation polymer volume is respectively the 5% of water consumption, 10%, 15%, 20%, according to the match ratio of upper table, join 5000g
Material, conversion is such as table 16:
Cement mortar ratio tested by table 16
According to previously described experimental technique, the values of shrinkage strain of test 1d-7d annulus specimen, each volume of analyzing polymers is in advance
Mix the influence degree of Shrinkage Property of Mortar, determine the optimum mix amount.The impact that mortar early-age shrinkage is strained by polymer volume is as follows
Table 17:
The impact that mortar early-age shrinkage is strained by table 17 polymer volume
As shown in Figure 1, along with the increase of polymer volume, the 1d contraction strain change of premixing mortar is inconspicuous, 7d contraction strain
Value first reduces and increases afterwards；Polymer volume is little to the effect of contraction of 1d, more apparent to the effect of contraction of 7d.1d contraction change is advised
Rule may be relevant with enclosed system residing for mortar, and in slurry, moisture is sufficient in early days, thus polymer volume number can't show
Write the volume contraction affecting mortar；And 7d degree of hydration is relatively big, along with the raising of degree of hydration, when polymer volume is less,
During mortar aquation and moisture loss, mortar internal relative humidity reduce, polymer cannot enough " supplementing " the wettest
Degree, mortar still suffers from shrinking because self capillary tube shrinks；When polymer volume is excessive, the unnecessary gel of introducing occupies mortar
Original space, forms big pore, causes Mortar shrinkage to increase.Therefore when polymer volume is suitable, to suppression contractive effect
Substantially.When polymer volume is 10%, premixing mortar values of shrinkage strain is minimum, its 1d, 7d values of shrinkage strain respectively-11 μ ε ,-
87 μ ε, for the optimum mix amount.
Code and building mortar basic performance tests standard, mortar when testing 10% polymer volume is prepared according still further to mortar
The index such as denseness, water retention, density, 7d intensity and 28d intensity.Result such as table 18:
Mortar performance during table 18 polymer volume 10%
From result in upper table, the mortar C group mixing polymer is intended to than A group mobility, water-retaining property and the mechanical property do not mixed
Good, density the most slightly increases, and the addition of polymer can improve mechanical property and the rheological property of mortar.
, maintenance premixing mortar Study on Microstructure in polymer
The macro property of material is often determined by the microstructure within material, according to the contraction of maintenance premixing mortar in polymer
Strain value, carries out micro analysis to not admixing the premixing mortar mixing polymer, by the mortar specimen that makes before according to standard
Condition maintenance, carries out the sem analysis of 7d age, and result is as shown in Figure 2.
As seen from Figure 2, the microstructure after premixing mortar aquation 7d is the most relatively compact, is not incorporated in polymer master drawing
It appeared that substantial amounts of threadiness C-S-H gel and more bulk, the Ca (OH) of cube lamellar2Crystal, in C-S-H gel week
Enclose and there is also a small amount of AFt.Mix in polymer master drawing it is apparent that large-area fibrous C-S-H gel, arrange
Closely, the Ca (OH) of a small amount of lamellar it is wrapped in2So that the structure of gelling system is finer and close；The intensity of mortar relies primarily on
The Behavior of Hardened Cement Paste of portland cement system hydration and hardening, degree of hydration is the highest, and system microstructure is the finest and close, the intensity of premixing mortar
The highest.
3, maintenance premixing mortar pore structure study in polymer
The internal pore structure of mortar is to ensure that the premise of its durability, and porosity is the lowest the most favourable to its durability.This research
Mainly use mercury injection method (being called for short MIP) to analyze mortar and only starch the overall porosity of sample, total specific surface area and total pore volume.According to hole
Gap size is divided into four classes to the impact of durability, be respectively harmless hole d ＜ 20nm, less do harm to hole d 20～50nm, harmful hole d
50～200nm and many evil hole d ＞ 200nm.With reference to basic match ratio, making mortar and only starch test, concrete match ratio see table 19:
Match ratio starched only by table 19 mortar
Do MIP test for above-mentioned 2 groups of sample 28d ages, the results are shown in Table 20.
The pore structure parameter of table 20 mortar
The sample porosity not mixing polymer as seen from the above table is less than the porosity mixed with polymer, and the ratio of admixture polymer is not
Fill reduces one times in the how harmful hole of more than 200nm, and the few harmful hole of 50-200nm also significantly reduces, the harmless hole of below 20nm
Increasing, on the whole, admixture polymer ratio does not fills the oriented little varying aperture trend of polymer, illustrates that polymer makes mortar
The trend of microporous.
Use fish peak homemade limestone matter Machine-made Sand, S75 level breeze and II grade of flyash, true through trial test repeatedly
Determine the optimal proportion of industrialization, have been carried out industrialized production at present and apply Yushan Hill gulf new rural village, Shi Lan road guarantee house, gold goose
The interior wall of the projects such as Promised Land is built by laying bricks or stones and plasters, on-the-spot extraction sample determination dry-mixed mortar properties of product, and result is as shown in table 21:
Table 21 dry-mixed mortar industrialization proportioning and performance
The above is only the preferred embodiment of the present invention, it is noted that come for those skilled in the art
Saying, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (3)
1. an ecological energy-saving dry-mixed mortar, it is characterised in that: primary raw material is limestone Machine-made Sand and Industry Waste ground-slag, work
Industry waste residue powder includes breeze and flyash.
2. ecological energy-saving dry-mixed mortar as claimed in claim 1, it is characterised in that: also include cement, containing of Industry Waste ground-slag
Amount and cement equivalent, breeze and flyash equivalent.
3. ecological energy-saving dry-mixed mortar as claimed in claim 2, it is characterised in that: also including additive, additive includes height
Water conservation polymer, the weight/mass percentage composition of high water conservation polymer is 10%.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009155151A (en) * | 2007-12-26 | 2009-07-16 | Taiheiyo Materials Corp | Water reducing agent for cement composition and cement composition |
| CN103058593A (en) * | 2012-12-28 | 2013-04-24 | 嘉兴市博宏新型建材有限公司 | Method for preparing common dry-mixed mortar by pulverized fuel ash and mining powder |
| CN104402330A (en) * | 2014-11-04 | 2015-03-11 | 潍坊德霖建材科技有限公司 | Dry-mixed self-leveling mortar |
| CN104743970A (en) * | 2013-12-30 | 2015-07-01 | 胜利油田营海实业集团有限公司 | Technological method for production of dry-mixed mortar |
| CN105294013A (en) * | 2015-11-25 | 2016-02-03 | 诸暨市兆山天峰干混砂浆有限公司 | Dry mixing building mortar |
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| CN103058593A (en) * | 2012-12-28 | 2013-04-24 | 嘉兴市博宏新型建材有限公司 | Method for preparing common dry-mixed mortar by pulverized fuel ash and mining powder |
| CN104743970A (en) * | 2013-12-30 | 2015-07-01 | 胜利油田营海实业集团有限公司 | Technological method for production of dry-mixed mortar |
| CN104402330A (en) * | 2014-11-04 | 2015-03-11 | 潍坊德霖建材科技有限公司 | Dry-mixed self-leveling mortar |
| CN105294013A (en) * | 2015-11-25 | 2016-02-03 | 诸暨市兆山天峰干混砂浆有限公司 | Dry mixing building mortar |
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