CN103755194A - Preparation method of aerated concrete reinforcement preservative - Google Patents
Preparation method of aerated concrete reinforcement preservative Download PDFInfo
- Publication number
- CN103755194A CN103755194A CN201410022047.8A CN201410022047A CN103755194A CN 103755194 A CN103755194 A CN 103755194A CN 201410022047 A CN201410022047 A CN 201410022047A CN 103755194 A CN103755194 A CN 103755194A
- Authority
- CN
- China
- Prior art keywords
- preparation
- parts
- steel bar
- magnesium oxide
- agent
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000003755 preservative agent Substances 0.000 title abstract description 6
- 230000002335 preservative effect Effects 0.000 title abstract description 6
- 230000002787 reinforcement Effects 0.000 title abstract 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000010881 fly ash Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001354 calcination Methods 0.000 claims abstract description 4
- CDMADVZSLOHIFP-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 CDMADVZSLOHIFP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 229910019142 PO4 Inorganic materials 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000003518 caustics Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 abstract 1
- 235000019796 monopotassium phosphate Nutrition 0.000 abstract 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910021538 borax Inorganic materials 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a preparation method of an aerated concrete reinforcement preservative. The preparation of the preservative comprises the following steps: (1) calcining 100 parts of caustic calcined magnesia powder containing 80-85% of magnesium oxide at 13000 DEG C for three hours, grinding until the specific surface area is 2000-3000 cm<2>/g, and evenly mixing and stirring with 10-50% of fly ash; (2) dissolving 20-48 parts of potassium dihydrogen phosphate and 0.02-0.1 part of sodium tetraborate decahydrate into 50 parts of water; (3) evenly mixing the mixture in the step (1) with the product in the step (2), so as to obtain the aerated concrete reinforcement preservative. The aerated concrete reinforcement preservative is safe and convenient to use, can be sprayed and brushed, and has the advantages of being corrosion resistant, firm in combination with concrete, simple in formula, low in cost and convenient to transport.
Description
Technical field
The invention belongs to building anti-corrosion Material Field, particularly the preparation method of a kind of gas concrete steel bar anti-corrosion agent.
Background technology
Gas concrete sheet material is used widely as building partition and deck panels.When making sheet material, gas concrete generally all in gas concrete sheet material, adds appropriate reinforcing bar in order to improve its intensity.Gas concrete is a kind of porous material, thereby moisture is extremely easily penetrated into inside, accelerates the corrosion speed of reinforcing bar, and therefore the producer can apply sanitas at rebar surface building before slip.This type of sanitas have a variety of as: pitch silicate sanitas, cement-casein-latex antiseptic, cement-phenolic aldehyde-pitch sanitas etc.These sanitass all need heating, drying in use, use very inconvenience, and preservative coat and concrete binding power that this type of sanitas forms are poor, and reinforcing bar easily produces wiping action, thereby affects the force-bearing situation of whole sheet material.
summary of the invention
Technical assignment of the present invention is the preparation method that the agent of a kind of gas concrete steel bar anti-corrosion is provided for above prior art deficiency.
The technical solution adopted for the present invention to solve the technical problems is: the preparation method of a kind of gas concrete steel bar anti-corrosion agent, the preparation of this sanitas comprises the steps:
A preparation method for gas concrete steel bar anti-corrosion agent, the preparation of this sanitas comprises the steps:
(1) taking the content of magnesia of 100 parts is 80%---85% magnesia unslacked exists
under C high temperature, calcining and being ground to specific surface area after 3 hours is 2000---3000cm
2the magnesium oxide powder of/g;
(2) take the magnesium oxide powder mixing and stirring that 10-50 parts of flyash and step 1 obtain;
(3) take the potassium primary phosphate that (1) weight ratio is 20-48 parts, the sodium tetraborate decahydrate of 0.02-0.10 part is dissolved in the water for 50 parts of (1) weight ratios;
(4) powdered mixture step (2) being obtained join that step (3) obtains solution in stir, be the agent of gas concrete steel bar anti-corrosion.
Further, its magnesium oxide and flyash weight ratio are between 1:0.5-1:0.1;
Further, the mol ratio of described magnesium oxide and potassium primary phosphate is 4:1-5:1.
Further, described magnesium oxide can be with industrial reburned magnesia powder.
Further, described potassium primary phosphate can be technical grade can be also chemical fertilizer level.
Further described sodium tetraborate decahydrate is technical grade.
Further, described flyash be secondary ash can be F level can be also C level, the better effects if of C level.Its addition exceedes 12% can extend setting time.
This invention beneficial effect is: this invention is safe and convenient to use, can spray, can brush, anticorrosion, be combined firmly with concrete, and have advantages of that formula is simple, low cost, need not dry, be convenient to transportation.
Embodiment
(1)
A preparation method for gas concrete steel bar anti-corrosion agent, the preparation of this sanitas comprises the steps:
(1) taking content of magnesia is that the magnesia unslacked 1000g of 80%-85% exists
c temperature lower calcination is milled to specific surface area 2800cm after 3 hours
2/ g, stirs with 400g-500g second class powered coal ash;
(2) take 650g-850g potassium primary phosphate, 20g-100g borax, add 400ml-500ml water, dissolve;
(3) the mixture mixing and stirring obtaining of the solution (2) being made and (1) the agent of gas concrete steel bar anti-corrosion.
(2)
A preparation method for gas concrete steel bar anti-corrosion agent, the preparation of this sanitas comprises the steps:
(1) take 1000g reburned magnesia levigate to specific surface area 2000cm
2/ g and 400g-500g second class powered coal ash mix;
(2) take 650g potassium primary phosphate, 35g borax is dissolved in 500ml water;
(3) the mixture mixing and stirring obtaining of the aqueous solution (2) being obtained and (1) the agent of gas concrete steel bar anti-corrosion
After can spraying or brush half an hour during use, just can carry out lower step operation.
Claims (4)
1. a preparation method for gas concrete steel bar anti-corrosion agent, the preparation of this sanitas comprises the steps:
(1) taking the content of magnesia of 100 parts is 80%---85% magnesia unslacked exists
under C high temperature, calcining and being ground to specific surface area after 3 hours is 2000---3000cm
2the magnesium oxide powder of/g;
(2) take the magnesium oxide powder mixing and stirring that 10-50 parts of flyash and step 1 obtain;
(3) take the potassium primary phosphate that (1) weight ratio is 20-48 parts, the sodium tetraborate decahydrate of 0.02-0.10 part is dissolved in the water for 50 parts of (1) weight ratios;
(4) powdered mixture step (2) being obtained join that step (3) obtains solution in stir, be the agent of gas concrete steel bar anti-corrosion.
2. the preparation method of a kind of gas concrete steel bar anti-corrosion according to claim 1 agent, is characterized in that: its magnesium oxide and flyash weight ratio are between 1:0.5-1:0.1.
3. the preparation method of a kind of gas concrete steel bar anti-corrosion according to claim 1 agent, is characterized in that: the mol ratio of described magnesium oxide and potassium primary phosphate is 4:1-5:1.
4. the preparation method who requires the agent of a kind of gas concrete steel bar anti-corrosion according to right 1, is characterized in that: described magnesium oxide can be with industrial reburned magnesia powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022047.8A CN103755194A (en) | 2014-01-19 | 2014-01-19 | Preparation method of aerated concrete reinforcement preservative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022047.8A CN103755194A (en) | 2014-01-19 | 2014-01-19 | Preparation method of aerated concrete reinforcement preservative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103755194A true CN103755194A (en) | 2014-04-30 |
Family
ID=50522559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410022047.8A Pending CN103755194A (en) | 2014-01-19 | 2014-01-19 | Preparation method of aerated concrete reinforcement preservative |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103755194A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402387A (en) * | 2014-11-06 | 2015-03-11 | 福州大学 | Pre-stressed pipe pile end plate magnesium cement base antiseptic and use method thereof |
| CN111777401A (en) * | 2020-06-24 | 2020-10-16 | 东南大学 | Cement protective layer for improving corrosion resistance of steel bar under carbonization conditions and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103059A (en) * | 1993-12-28 | 1995-05-31 | 成都机电化工研究所 | Three-proof building decoration products |
| CN102241504A (en) * | 2011-06-02 | 2011-11-16 | 河海大学 | Phosphate aerated concrete bonding agent |
-
2014
- 2014-01-19 CN CN201410022047.8A patent/CN103755194A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103059A (en) * | 1993-12-28 | 1995-05-31 | 成都机电化工研究所 | Three-proof building decoration products |
| CN102241504A (en) * | 2011-06-02 | 2011-11-16 | 河海大学 | Phosphate aerated concrete bonding agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402387A (en) * | 2014-11-06 | 2015-03-11 | 福州大学 | Pre-stressed pipe pile end plate magnesium cement base antiseptic and use method thereof |
| CN104402387B (en) * | 2014-11-06 | 2016-06-29 | 福州大学 | A kind of pile for prestressed pipe end plate magnesium cement based preservative and using method thereof |
| CN111777401A (en) * | 2020-06-24 | 2020-10-16 | 东南大学 | Cement protective layer for improving corrosion resistance of steel bar under carbonization conditions and preparation method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140430 |
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| RJ01 | Rejection of invention patent application after publication |