CN105733382A - Micro-nano reinforcing steel bar anti-rusting agent for autoclaved aerated concrete slab and preparation method of micro-nano reinforcing steel bar anti-rusting agent - Google Patents

Micro-nano reinforcing steel bar anti-rusting agent for autoclaved aerated concrete slab and preparation method of micro-nano reinforcing steel bar anti-rusting agent Download PDF

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CN105733382A
CN105733382A CN201610126460.8A CN201610126460A CN105733382A CN 105733382 A CN105733382 A CN 105733382A CN 201610126460 A CN201610126460 A CN 201610126460A CN 105733382 A CN105733382 A CN 105733382A
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micro
steel bar
concrete slab
aerated concrete
autoclaved aerated
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CN105733382B (en
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张宪圆
林克辉
杨军
谢红波
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Guangdong Building Material Research Institute
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Guangdong Building Material Research Institute
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic

Abstract

The invention discloses a micro-nano reinforcing steel bar anti-rusting agent for an autoclaved aerated concrete slab. The micro-nano reinforcing steel bar anti-rusting agent is prepared from the following raw materials in percentage by mass: 15-25% of organosilicone modified crylic acid emulsion, 15-20% of silicon sol emulsion, 8-12% of lime, 8-12% of silicon ash, 8-12% of cement, 8-12% of light calcium carbonate, 3-8% of a coalescing agent, 0.2-3% of a tackifier, 0.1-0.7% of a defoaming agent, 0.1-0.5% of a dispersing agent and the balance of water. The micro-nano reinforcing steel bar anti-rusting agent is relatively easy to stir uniformly, so that the dip-coating quality stability can be ensured, the bonding force of a reinforcing steel bar can be greatly increased, the anti-rusting property of the reinforcing steel bar is further improved, tests show that various indexes are all superior to those required in GB 15762-2008 and JC/T 855-1999, and meanwhile the micro-nano reinforcing steel bar anti-rusting agent has the advantages of stable quality, environment-friendliness and the like. The invention further discloses a preparation method of the micro-nano reinforcing steel bar anti-rusting agent.

Description

A kind of autoclaved aerated concrete slab micro-nano reinforced steel bar rust preventing agent and preparation method thereof
Technical field
The invention belongs to autoclaved aerated concrete slab technical field, be specifically related to a kind of autoclaved aerated concrete slab micro-nano reinforced steel bar rust preventing agent and preparation method thereof.
Background technology
Autoclaved aerated concrete slab is the important a member in steam pressurized foam concrete, it is a kind of green lightweight, insulation, heat insulation and construction material of excellent in mechanical performance, can be used as internal partition wall, exterior wall, floor and roofing, there is factory normalization produce, can saw, can cut, easy for installation, the plurality of advantages such as manpower and reduction of erection time can be saved.Along with the development further of China's building energy conservation, the constantly propelling of housing industrialization and Building technology change to industrial design, factorial praluction, fabricated construction, steam-aerated concrete plate will have the bigger market demand, and prospect is the most wide.
Autoclaved aerated concrete slab is a kind of reinforcements; there is certain thickness of protection tier; but due to steam-pressing aero-concrete base material unlike normal concrete closely knit, there is the highest porosity and high alkalinity, therefore can not effectively protect its internal reinforcing bar that corrosion does not occur.On the contrary, because of the hygroscopicity of goods during its steaming pressuring curing process and use, reinforcing bar is easily corroded by electrolyte, oxygen, chloride ion etc..Therefore must have the antirust treatment being different from normal concrete component in the use of reinforcing bar, its usual way is applying preventive by dipping agent.
Performance according to autoclaved aerated concrete slab and production technology characteristic, antirust agent is mainly evaluated in terms of three: first is antirust ability;Second is use process complexity;3rd is the cohesive force with reinforcing bar and base material.The reinforced steel bar rust preventing agent used when producing autoclaved aerated concrete slab at present is mainly with levigate sand, Calx, cement, water paint or emulsified asphalt etc. as Main Ingredients and Appearance, the rustless property of these kind antirust agent is good, but generally there is the problem that reinforcing bar cohesive force is relatively low, and owing to levigate sand ratio is great, easily sink to being layered during use, even if stirring also is difficult to be uniformly dispersed, thus have impact on structural behaviour and the quality control of autoclaved aerated concrete slab.
Summary of the invention
In order to overcome the disadvantages mentioned above of prior art with not enough, it is an object of the invention to provide a kind of micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab, the antirust agent of the present invention is remarkably improved the cohesive force of reinforcing bar and base material, improve and use layered subsidence problems, improve uniformity and the rustless property of reinforcing bar dip-coating.
Another object of the present invention is providing the above-mentioned autoclaved aerated concrete slab preparation method of micro-nano reinforced steel bar rust preventing agent, and this preparation method technique is simple, environmental protection.
First purpose of the present invention is achieved through the following technical solutions: a kind of autoclaved aerated concrete slab with micro-nano reinforced steel bar rust preventing agent, is made up of the raw material of following weight/mass percentage composition:
Organosilicon-modified acrylic emulsion: 15 ~ 25%;
Ludox emulsion: 15 ~ 20%;
Calx: 8 ~ 12%;
Silicon ash: 8 ~ 12%;
Cement: 8 ~ 12%;
Precipitated calcium carbonate: 8 ~ 12%;
Coalescents: 3 ~ 8%;
Viscosifier: 0.2 ~ 3%;
Defoamer: 0.1 ~ 0.7%;
Dispersant: 0.1 ~ 0.5%;
Surplus is water.
At this autoclaved aerated concrete slab with in each raw material of micro-nano reinforced steel bar rust preventing agent:
The solid content of described organosilicon-modified acrylic emulsion is 25% ~ 65%.
Described Ludox emulsion is preferably nanometer grade silica glue aqueous solution, wherein SiO2Content is 20 ~ 30%.
The specific surface area < 22m of described silicon ash2/ g, grain size is preferably micro/nano level.
Described Calx is preferably hydrated lime in powder, and described cement is preferably PO42.5 portland cement, and the fineness of described lightweight calcium silicates is 800 ~ 2000 mesh.
Described coalescents is preferably alcohol ester 12, and described viscosifier are preferably cellulose ether or Polyethylene Glycol, and described defoamer is preferably organosilicon emulsion defoaming agents, and described dispersant is preferably sodium hexameta phosphate.
Second object of the present invention is achieved through the following technical solutions: the above-mentioned autoclaved aerated concrete slab preparation method of micro-nano reinforced steel bar rust preventing agent, comprises the following steps:
(1) by above-mentioned magnitude relation, after taking silicon ash, Calx, cement, the mixing of lightweight calcium silicates, add the stirring of part watertight, obtain mixture 1;
(2) by above-mentioned magnitude relation, mixture 1 adds organosilicon-modified acrylic emulsion, Ludox emulsion, continues stirring, obtain mixture 2;
(3) by above-mentioned magnitude relation, take coalescents, viscosifier, defoamer and dispersant and add in remainder water, add in mixture 2 after mixing, after continuing stirring, i.e. prepare the micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab.
At above-mentioned autoclaved aerated concrete slab with in the preparation method of micro-nano reinforced steel bar rust preventing agent:
In step (1), airtight mixing time is preferably 15 ~ 30min.
Step (2) continues mixing time and is preferably 3 ~ 6min, preferably 5min.
Step preferably continues to stir 3 ~ 6min in (3), preferably 3min.
Compared with prior art, present invention have the advantage that
(1) present invention uses silicon ash to replace levigate sand, it is to avoid the subsidence problems that levigate sand density causes greatly, during use, antirust agent is more easy to stir, thus ensure that the quality stability of dip-coating;
(2) present invention uses organosilicon-modified acrylic emulsion and Ludox emulsion as film forming matter, and its resistance to elevated temperatures is much better than other film forming matters, effectively prevent the damage inactivation of the reinforcing bar coating caused because of steam press maintenance;
(3) in the present invention, silicon ash and Ludox specific surface area are big, and activity is high, and hydrated product is many, crystallization degree is high for the tobermorite etc. generated with cement, lime reaction in antirust agent, thus can improve the adhesive property of coating and steam-pressing aero-concrete base material;
(4) in the present invention, the particle size of silicon ash enters micro-nano magnitude, and unreacted silicon ash improves the degree of compaction of reinforcing bar coating, thus further increases the rustless property of antirust agent as filler;
(5) present invention is by introducing defoamer, it is to avoid the bubble produced during antirust agent stirring, also improves the degree of compaction of reinforcing bar coating, thus further increases the rustless property of antirust agent;
(6) present invention is by introducing sodium hexameta phosphate as dispersant, can be prevented effectively from the reunion of silicon ash particle so that it is preferably play a role;
(7) this micro-nano reinforced steel bar rust preventing agent is more easy to stir, thus ensure that the quality stability of dip-coating, reinforcing bar cohesive force is greatly improved, further increases reinforced steel bar rust preventing ability, and indices is superior to GB after measured Requirement in 15762-2008 and JC/T 855-1999 standard, has the advantage such as steady quality, environmental protection simultaneously.
Detailed description of the invention
Embodiment 1
The autoclaved aerated concrete slab raw material of micro-nano reinforced steel bar rust preventing agent and performance requirement:
Organosilicon-modified acrylic emulsion solid content is 30%(Guangzhou white clouds perseverance and Fine Chemical Works LR-308A);Ludox emulsion, SiO2Content is 20%;Silicon ash specific surface area 20 m2/ g, when silicon ash is preferably smelting commercial silicon or silicon-containing alloy, is occurred reduction reaction to obtain by highly purified quartz and coke, commercially available prod such as Norway Ai Ken group production etc. in high-temperature electric arc stove;Calx is hydrated lime in powder;Cement is PO42.5 portland cement;Lightweight calcium silicates fineness is 1000 mesh;Coalescents is alcohol ester 12;Viscosifier are hydroxypropyl methyl cellulose ether, 150,000 viscosity;Defoamer is organosilicon emulsion defoaming agents;Dispersant is sodium hexameta phosphate.
This autoclaved aerated concrete slab is with micro-nano reinforced steel bar rust preventing agent, in terms of the weight/mass percentage composition of raw material, is made up of following raw material:
Organosilicon-modified acrylic emulsion: 15%;
Ludox emulsion: 20%;
Calx: 12%;
Silicon ash: 10%;
Cement: 8%;
Precipitated calcium carbonate: 12%;
Coalescents: 3%;
Viscosifier: 0.2%;
Defoamer: 0.2%;
Dispersant: 0.2%;
Water: 19.4%
This autoclaved aerated concrete slab is as follows by the preparation method of micro-nano reinforced steel bar rust preventing agent:
(1) according to mass ratio, silicon ash, Calx, cement, lightweight calcium silicates being added blender, add suitable quantity of water stirring, airtight during stirring, mixing time is 15 minutes;
(2) again organosilicon-modified acrylic emulsion, Ludox emulsion are sequentially added into above-mentioned blender according to mass ratio, continue stirring 5 minutes;
(3) by coalescents, viscosifier, defoamer, dispersant example in mass ratio and suitable quantity of water at another less blender mix and blend, it is stirring evenly and then adding into master mixer and continues stirring 3 minutes, i.e. prepare the micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab of the present invention.
Embodiment 2
The autoclaved aerated concrete slab raw material of micro-nano reinforced steel bar rust preventing agent and performance requirement:
Organosilicon-modified acrylic emulsion solid content is 30%(Dongguan Long Qin Chemical Co., Ltd. 9908A);Ludox emulsion SiO2Content is 30%;Silicon ash specific surface area 18 m2/g;Calx is hydrated lime in powder;Cement is PO42.5 portland cement;Lightweight calcium silicates fineness is 800 mesh;Coalescents is alcohol ester 12;Viscosifier are Polyethylene Glycol, and molecular weight is 6000;Defoamer is organosilicon emulsion defoaming agents;Dispersant is sodium hexameta phosphate.
This autoclaved aerated concrete slab with micro-nano reinforced steel bar rust preventing agent, with the mass percent of raw material, is made up of following component:
Organosilicon-modified acrylic emulsion: 25%;
Ludox emulsion: 15%;
Calx: 8%;
Silicon ash: 8%;
Cement: 12%;
Precipitated calcium carbonate: 8%;
Coalescents: 8%;
Viscosifier: 1%;
Defoamer: 0.7%;
Dispersant: 0.5%;
Water: 13.8%
This autoclaved aerated concrete slab is as follows by the preparation method of micro-nano reinforced steel bar rust preventing agent:
(1) according to mass ratio, silicon ash, Calx, cement, lightweight calcium silicates being added blender, add suitable quantity of water stirring, airtight during stirring, mixing time is 15 minutes;
(2) again organosilicon-modified acrylic emulsion, Ludox emulsion are sequentially added into above-mentioned blender according to mass ratio, continue stirring 5 minutes;
(3) by coalescents, viscosifier, defoamer, dispersant example in mass ratio and suitable quantity of water at another less blender mix and blend, if viscosifier dissolve slower, can suitably heat or select hot water dissolving, it is stirring evenly and then adding into master mixer and continues stirring 3 minutes, i.e. prepare the micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab of the present invention.
Embodiment 3
The autoclaved aerated concrete slab raw material of micro-nano reinforced steel bar rust preventing agent and performance requirement:
Organosilicon-modified acrylic emulsion solid content is 50%;Ludox emulsion SiO2Content is 25%;Silicon ash specific surface area 20 m2/g;Calx is hydrated lime in powder;Cement is PO42.5 portland cement;Lightweight calcium silicates fineness is 800 mesh;Coalescents is alcohol ester 12;Viscosifier are hydroxypropyl methyl cellulose ether, 100,000 viscosity;Defoamer is organosilicon emulsion defoaming agents;Dispersant is sodium hexameta phosphate.
This autoclaved aerated concrete slab with micro-nano reinforced steel bar rust preventing agent, with the mass percent of raw material, is made up of following component:
Organosilicon-modified acrylic emulsion: 20%;
Ludox emulsion: 15%;
Calx: 10%;
Silicon ash: 12%;
Cement: 12%;
Precipitated calcium carbonate: 10%;
Coalescents: 5%;
Viscosifier: 0.4%;
Defoamer: 0.1%;
Dispersant: 0.4%;
Water: 15.1%
This autoclaved aerated concrete slab is as follows by the preparation method of micro-nano reinforced steel bar rust preventing agent:
(1) according to mass ratio, silicon ash, Calx, cement, lightweight calcium silicates being added blender, add suitable quantity of water stirring, airtight during stirring, mixing time is 20 minutes;
(2) again organosilicon-modified acrylic emulsion, Ludox emulsion are sequentially added into above-mentioned blender according to mass ratio, continue stirring 6 minutes;
(3) by coalescents, viscosifier, defoamer, dispersant example in mass ratio and suitable quantity of water at another less blender mix and blend, it is stirring evenly and then adding into master mixer and continues stirring 3 minutes, i.e. prepare the micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab of the present invention.
Embodiment 4
This autoclaved aerated concrete slab raw material of micro-nano reinforced steel bar rust preventing agent and performance requirement:
Organosilicon-modified acrylic emulsion solid content is 40%;Ludox emulsion SiO2Content is 26%;Silicon ash specific surface area 20 m2/g;Calx is hydrated lime in powder;Cement is PO42.5 portland cement;Lightweight calcium silicates fineness is 2000 mesh;Coalescents is alcohol ester 12;Viscosifier are Polyethylene Glycol, and molecular weight is 6000;Defoamer is organosilicon emulsion defoaming agents;Dispersant is sodium hexameta phosphate.
This autoclaved aerated concrete slab with micro-nano reinforced steel bar rust preventing agent, with the mass percent of raw material, is made up of following component:
Organosilicon-modified acrylic emulsion: 16%;
Ludox emulsion: 16%;
Calx: 10%;
Silicon ash: 8%;
Cement: 10%;
Precipitated calcium carbonate: 8%;
Coalescents: 3%;
Viscosifier: 3%;
Defoamer: 0.4%;
Dispersant: 0.1%;
Water: 25.5%
This autoclaved aerated concrete slab is as follows by the preparation method of micro-nano reinforced steel bar rust preventing agent:
(1) according to mass ratio, silicon ash, Calx, cement, lightweight calcium silicates being added blender, add suitable quantity of water stirring, airtight during stirring, mixing time is 30 minutes;
(2) again organosilicon-modified acrylic emulsion, Ludox emulsion are sequentially added into above-mentioned blender according to mass ratio, continue stirring 3 minutes;
(3) by coalescents, viscosifier, defoamer, dispersant example in mass ratio and suitable quantity of water at another less blender mix and blend, if viscosifier dissolve slower, can suitably heat or select hot water dissolving, it is stirring evenly and then adding into master mixer and continues stirring 6 minutes, i.e. prepare the micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab of the present invention.
Antirust agent performance obtained by embodiment 1 ~ 4 is as shown in table 1:
Antirust agent performance obtained by table 1 embodiment 1 ~ 4
From table 1, the micro-nano reinforced steel bar rust preventing agent of the dip-coating present invention, the reinforcing bar cohesive force of autoclaved aerated concrete slab is greatly improved, and antirust ability is further enhanced, and antirust agent is more easy to stir.After measured, the micro-nano reinforced steel bar rust preventing agent indices of the present invention is superior to GB Requirement in 15762-2008 and JC/T 855-1999 standard, has the advantage such as steady quality, environmental protection simultaneously.
The present invention is not limited to above-mentioned detailed description of the invention; according to foregoing; ordinary technical knowledge and customary means according to this area; without departing under the present invention above-mentioned basic fundamental thought premise; the present invention can also make the equivalent modifications of other various ways, replace or change, and all falls among protection scope of the present invention.

Claims (10)

1. autoclaved aerated concrete slab is with a micro-nano reinforced steel bar rust preventing agent, it is characterized in that: be made up of the raw material of following weight/mass percentage composition:
Organosilicon-modified acrylic emulsion: 15 ~ 25%;
Ludox emulsion: 15 ~ 20%;
Calx: 8 ~ 12%;
Silicon ash: 8 ~ 12%;
Cement: 8 ~ 12%;
Precipitated calcium carbonate: 8 ~ 12%;
Coalescents: 3 ~ 8%;
Viscosifier: 0.2 ~ 3%;
Defoamer: 0.1 ~ 0.7%;
Dispersant: 0.1 ~ 0.5%;
Surplus is water.
Autoclaved aerated concrete slab the most according to claim 1, with micro-nano reinforced steel bar rust preventing agent, is characterized in that: the solid content of described organosilicon-modified acrylic emulsion is 25% ~ 65%.
Autoclaved aerated concrete slab the most according to claim 1, with micro-nano reinforced steel bar rust preventing agent, is characterized in that: described Ludox emulsion is nanometer grade silica glue aqueous solution, wherein SiO2Content is 20 ~ 30%.
Autoclaved aerated concrete slab the most according to claim 1, with micro-nano reinforced steel bar rust preventing agent, is characterized in that: the specific surface area < 22m of described silicon ash2/ g, grain size is micro/nano level.
Autoclaved aerated concrete slab the most according to claim 1, with micro-nano reinforced steel bar rust preventing agent, is characterized in that: described Calx is hydrated lime in powder, and described cement is PO42.5 portland cement, and the fineness of described lightweight calcium silicates is 800 ~ 2000 mesh.
Autoclaved aerated concrete slab the most according to claim 1 is with micro-nano reinforced steel bar rust preventing agent, it is characterized in that: described coalescents is alcohol ester 12, described viscosifier are cellulose ether or Polyethylene Glycol, and described defoamer is organosilicon emulsion defoaming agents, and described dispersant is sodium hexameta phosphate.
7. the preparation method of micro-nano reinforced steel bar rust preventing agent of the autoclaved aerated concrete slab described in any one of claim 1-6, is characterized in that comprising the following steps:
(1) by above-mentioned magnitude relation, after taking silicon ash, Calx, cement, the mixing of lightweight calcium silicates, add the stirring of part watertight, obtain mixture 1;
(2) by above-mentioned magnitude relation, mixture 1 adds organosilicon-modified acrylic emulsion, Ludox emulsion, continues stirring, obtain mixture 2;
(3) by above-mentioned magnitude relation, take coalescents, viscosifier, defoamer and dispersant and add in remainder water, add in mixture 2 after mixing, after continuing stirring, i.e. prepare the micro-nano reinforced steel bar rust preventing agent of autoclaved aerated concrete slab.
The autoclaved aerated concrete slab the most according to claim 7 preparation method of micro-nano reinforced steel bar rust preventing agent, is characterized in that: in step (1), airtight mixing time is 15 ~ 30min.
The autoclaved aerated concrete slab the most according to claim 7 preparation method of micro-nano reinforced steel bar rust preventing agent, is characterized in that: continuing mixing time in step (2) is 3 ~ 6min.
The autoclaved aerated concrete slab the most according to claim 7 preparation method of micro-nano reinforced steel bar rust preventing agent, is characterized in that: continue stirring 3 ~ 6min in step (3).
CN201610126460.8A 2016-03-07 2016-03-07 A kind of micro-nano reinforced steel bar rust preventing agent and preparation method thereof of autoclaved aerated concrete slab Active CN105733382B (en)

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CN107382124A (en) * 2017-09-15 2017-11-24 四川坤正新型材料有限公司 A kind of steam-aerated concrete plate reinforced steel bar rust preventing agent and preparation method thereof
CN107382124B (en) * 2017-09-15 2020-07-10 四川坤正新型材料有限公司 Autoclaved aerated concrete plate steel bar antirust agent and preparation method thereof
CN108589935A (en) * 2018-05-18 2018-09-28 哈尔滨工业大学 A kind of surface modifying method improving reinforced steel bar rust preventing erosion ability
CN109626932B (en) * 2019-01-14 2021-08-06 青岛天利兴达新型建材有限公司 Autoclaved aerated concrete plate and preparation method thereof

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