CN103183487B - Preparation method of modified common silicate cement based foam insulating plate and special assistant - Google Patents
Preparation method of modified common silicate cement based foam insulating plate and special assistant Download PDFInfo
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- CN103183487B CN103183487B CN201310144919.3A CN201310144919A CN103183487B CN 103183487 B CN103183487 B CN 103183487B CN 201310144919 A CN201310144919 A CN 201310144919A CN 103183487 B CN103183487 B CN 103183487B
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Abstract
The invention discloses a special assistant for preparation of a modified common silicate cement based foam insulating plate. The special assistant is prepared from the raw materials in parts by weight as follows: 10-20 parts of industrial calcium stearate, 5-10 parts of illite or kaolin, 0.5-5 parts of water-soluble polymer compound sodium carboxymethylcellulose, 15-25 parts of calcium nitrate, 5-20 parts of building plaster, 15-25 parts of sodium chloride or sodium chloride, 15-25 parts of lithium carbonate, 0.5-5 parts of triethanolamine, 5-10 parts of quick lime and 1-5 parts of reducer. The invention further discloses a preparation method of the modified common silicate cement based foam insulating plate. The insulating plate is prepared by using the assistant, common silicate cement, coal ash, silica fume, polypropylene fiber and an efficient water reducer. According to the invention, the problems that the moulds are easy to collapse and bubbles are non-uniformly distributed when common silicate cement or common silicate cement foam insulating plate is produced, the reject ratio is high, the water absorption yield produced in great, the strength is low and the like are solved.
Description
Technical field
The present invention relates to building material field, especially relate to one and utilize ordinary Portland cement or silicate cement to prepare foamed cement warming plate preparation method and dedicated modified auxiliary agent thereof.
Background technology
For a long time, in China's construction market, generally use the organic insulation materials such as polystyrene foam (EPS, XPS), rigid polyurethane foam (PU), it has the advantage such as lightweight, high insulating effect, but inflammable, easy aging, poor durability, various places heat-preserving building engineering presence of fire accident repeatedly, when fire, EPS will soon melt, and smog is large, toxicity is large, be difficult to put out a fire to save life and property, harm is serious.For Pu, except fire prevention and price problem, when also existence is constructed, to weather sensitivity, wind impact sprays, moisture effect bonding, and contraction greatly, is distributed the defects such as poison gas when spraying.And these organic foam materials are easily aging, can not with the same life-span of buildings, repeatedly change thermal insulation layer in buildings usage period domestic demand, waste a large amount of human and material resources, financial resources.Meanwhile, change styrofoam and also will cause the environmental hazards such as white pollution.
According to the incomplete statistics of the Fire-Fighting Bureau under the Ministry of Public Security of China, the exterior insulation work fire leading to grave consequences for 2007～2010 years just reaches 1359.Along with country requires to improve constantly to building energy conservation, external and internal wall fire protection flame retarding lagging material continues to bring out, but quality and performance varies, mainly that fire retardant performance is not good, the big fire of building, CCTV new address big fire in recent years, Jing'an Monastery, Shanghai teacher apartment big fire contour level building is suffered heavy losses, and the lagging material of exterior wall finishing is flammable is major cause.That organic insulation material external wall insulation project fire has is inflammable, igniting property strong, quick stereo fire, control that difficulty is large, fire focuses mostly in the dangerous defect such as large of construction stage, the building that comes into operation.Public logical word [2009] No. 46 " covil construction outer heat preservation system and decoration of exterior wall fire prevention temporary provisions " and public logical word [2011] No. 65 " about the notices of further clear and definite covil construction external-wall heat-insulation material fire supervision management relevant requirements " explicitly call for the flame retardant properties of external-wall heat-insulation material need reach A1 level, particularly external wall of high-rise building are incubated and ban use of organic foam material.For the deep fire failure of drawing is given a lesson to, contain the inflammable flammable heat insulating material for external fire of the current building impetus occurred frequently, control fire source, " covil construction outer heat preservation system and the decoration of exterior wall fire prevention temporary provisions " of the Ministry of Public Security, Ministry of Housing and town and country construction cloth promulgated by the ministries or commissions of the Central Government have made new requirement to building heat preservation fire safety problem, the fire resistance of building heat preservation is guaranteed in these new technical requirementss, but increase largely difficulty of construction and the cost of engineering, to a certain degree limited the application of organic heat-insulating system.
Under above-mentioned background, a lot of provinces and cities of China have also started to promote the technical study of inorganic heat-insulation board in recent years.Cement based foaming cement thermal insulation plate is inorganic materials A level fire prevention, be all cement based more easily with body of wall and body of wall bonding, weather resistance is good, but it is uneven to utilize ordinary Portland cement to prepare foamed cement warming plate quality, some intensity is low, and unit weight is high, and thermal conductivity is large.The research and the application that utilize at present cement to prepare foamed heat insulating cement heat preserving plate are prepared foamed concrete for employing special cement (aluminosulfate cement, ferro-aluminate cement etc.) mostly, this be because steady time of foam that whipping agent produces limited, just must shorten the time of coagulation of gelling material in order to ensure that bubble is not broken, but the retraction of special cement later strength and expensive and output is little, distribute wideless, limited the conversion of these achievements.
Utilize ordinary Portland cement to make foaming cement thermal insulation plate that main gelling material agent prepares foaming cement thermal insulation plate with its light weight, intensity is high, durable, low cost and other advantages meets the demands, market expands rapidly, producer and output are also surged, but because state of the art is uneven, bad when quality fashion, mould easily collapses while being mainly production, Air Bubble Size inequality, maldistribution, fraction defective is high, the product water-intake rate making is large, low these problems of intensity have perplexed some producers, the special assistant of a kind of modified cement-based foam heat-insulating board of our invention can effectively help them to improve quality product.
Summary of the invention
Technical problem to be solved by this invention is, the special assistant that how to provide a kind of modified portland cement base foam heat-insulating board to prepare, a kind of modified portland cement base foam heat-insulating board preparation method who obtains based on this auxiliary agent is provided simultaneously, make it solve that the mould that easily collapses while producing ordinary Portland cement or silicate cement foam heat-insulating board, Air Bubble Size differ, maldistribution, fraction defective is high, the problems such as the product water-intake rate making is large, and intensity is low.This auxiliary agent for modified portland cement base foam heat-insulating board can meet foaming cement thermal insulation board industry steady progression demand.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme.
A special assistant prepared by modified portland cement base foam heat-insulating board, is characterized in that, adopts the material mixture ratio of following mass parts to form:
10 ~ 20 parts of industry calcium stearates;
5 ~ 10 parts of illite clay and/or kaolin;
0.5 ~ 5 part of water-soluble high-molecular compound Xylo-Mucine;
15 ~ 25 parts, nitrocalcite;
5 ~ 20 parts of plaster of Paris;
15 ~ 25 parts, sodium-chlor and/or calcium chloride;
15 ~ 25 parts of Quilonum Retards;
0.5 ~ 5 part of trolamine;
5 ~ 10 parts of unslaked limes;
1 ~ 5 part of economization agent.
Prepare a dedicated modified auxiliary agent for modified cement-based foam heat-insulating board, on the basis of a large amount of tests, above-mentioned many kinds of substance is organically re-dubbed to one, and ensure between various materials, to there is good consistency.It has following effect: surely steep anti-collapse; Short solidifying early strong; Hydrophobic; Microdilatancy, reduce anticracking.
In above-mentioned materials proportioning, industrial calcium stearate, illite clay or kaolin, water-soluble high-molecular compound Xylo-Mucine have the anti-collapse effect of steady bubble.Industry calcium stearate, water-soluble high-molecular compound Xylo-Mucine be stable foam by reducing solution surface tension and increase liquid film surface elasticity and thickness; Illite clay or kaolin have interlayer structure, and the moisture that it can adsorb liquid film reduces drain age velocity and has steady bubble effect.
Nitrocalcite, plaster of Paris, sodium-chlor or calcium chloride, Quilonum Retard, trolamine, unslaked lime have short solidifying early strength function; Plaster of Paris, sodium-chlor or calcium chloride, Quilonum Retard, trolamine, unslaked lime promoted hydrated cementitious and generate a large amount of intermediate product (ettringite and chloro-aluminate) in early stage, emitted a large amount of heat and had short solidifying early strength function; Nitrocalcite, Quilonum Retard not only promote the aquation of cement, be simultaneously also good frostproofer, it can effectively reduce the freezing point of water, can under subzero temperature, promote concrete gain in strength, under situation in the winter time, ensure the normal production of sheet material together with short solidifying hardening accelerator.
Industry calcium stearate, water-soluble high-molecular compound Xylo-Mucine have hydrophobic effect; Water-soluble high-molecular compound Xylo-Mucine, industrial calcium stearate have hydrophobic functional group, be dispersed in uniformly and in cement cell wall, have hydrophobic effect after cement slurry sclerosis.
Plaster of Paris, unslaked lime, economization agent have microdilatancy, reduce the effect of anticracking.Plaster of Paris, unslaked lime react the ettringite generating and have certain microdilatancy effect with cement, can offset the contraction of a part of cement, and they and economization agent acting in conjunction, have the effect of reducing anticracking.
In cement slurry whipping process, inorganic illite clay or kaolin and organic industrial calcium stearate, water-soluble high-molecular compound Xylo-Mucine are dispersed in slurry jointly, inorganic organic synergy has ensured cement slurry dispersing uniformity, and the main support power of foam is provided in 3h after building; The interpolation of nitrocalcite, plaster of Paris, sodium-chlor or calcium chloride, Quilonum Retard, unslaked lime makes cement slurry start to condense at 1.5 ~ 2.5h, and foam stabilization time and cement setting time harmonious ensured the foam cement idiosome mould that do not collapse; Simultaneously 3h later short solidifying accelerating component impel that cement slurry generates there is microdilatancy effect ettringite, with the economization agent of admixture jointly reduced foam cement contraction, reduced the generation of inner microfracture.
The invention also discloses a kind of modified portland cement base foam heat-insulating board preparation method, it is characterized in that, comprise the following steps:
A, by the batching of following mass parts: 90 ~ 100 parts, water, 140 ~ 180 parts of ordinary Portland cements (silicate cement), 35 ~ 45 parts, flyash, above-mentioned 10 ~ 12 parts of the dedicated modified auxiliary agents of ordinary Portland cement base foam heat-insulating board, 4 parts of silicon ashes, 1 part of polypropylene fibre, 1 part of high efficiency water reducing agent, join whipping appts, stir 170s;
B, guarantee that the slurry of whipping appts stirs, add the whipping agent stir about 4 ~ 5 seconds of 10 parts of mass parts, open immediately discharge door and enter special foaming mould by slurry;
C, the quiet bubble of stopping paying out of idiosome after building, leave standstill form removal in 5 hours under normal temperature, maintenance is cut after 24 hours, packed, then maintenance was to the 28 days length of time.
In above-mentioned steps, the flyash of admixture has pozzolanic activity and micro aggregate effect, can improve the density of Behavior of Hardened Cement Paste, and then improves intensity; The specific surface area that activated grammite is high can improve the denseness of cement slurry, more easily steady bubble; Polypropylene fibre add folding strength and the snappiness that can significantly improve cement sheet material.
When cement slurry stirs, whipping agent should stir in slurry, ensures again to stir the foam destroying still less; Attempt by a large amount of experiments, churning time 4 ~ 5 seconds is optimal selection.
The present invention has the following advantages:
1. auxiliary agent preparation technology of the present invention is simple, and the mould that easily collapses while having solved production ordinary Portland cement or silicate cement foam heat-insulating board, Air Bubble Size differ, maldistribution, and fraction defective is high, the product water-intake rate making is large, the problems such as intensity is low, never degenerate in 1 ~ 2 year simultaneously, convenient transportation; 2. when the present invention prepares foaming cement thermal insulation plate, added this auxiliary agent, made its warming plate making have walls thickening, pore is stable, the advantage being evenly distributed; 3. this auxiliary agent suitability is wide, can be used for 42.5 cement or 52.5 high grade ordinary Portland cements or silicate cement and makes foaming cement thermal insulation plate, also can be used for other light wall materials of porousness; 4. using method is simple, in accordance with regulations or recommended amounts add in the raw material such as cement, flyash and stir.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
In the present embodiment, the proportioning that is used for the each raw material of special assistant of modified portland cement base foam heat-insulating board is: 15 parts of industrial calcium stearates, 10 parts of illite clay or kaolin, 3.5 parts of water-soluble high-molecular compound Xylo-Mucines, 20 parts, nitrocalcite, 13 parts of plaster of Paris, 15 parts, sodium-chlor or calcium chloride, 15 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, 3 parts of economization agents mix.
In the present embodiment, while preparing modified portland cement base foam heat-insulating board, the material mixture ratio of described ordinary Portland cement base foam heat-insulating board is: ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent, whipping agent are according to proportion by weight 180 ︰ 45 ︰ 100 ︰ 10 ︰ 4 ︰ 1 ︰ 1 ︰ 10.
Take each raw material according to proportioning, first water, ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent are inserted in stirrer, stir 170 seconds, then add whipping agent, stir 4 ~ 5 seconds, make mixed slurry; Open immediately discharge door and enter special foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building, under normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packaging, and maintenance was to the 28 days length of time.
Embodiment 2
A kind of proportioning of the each raw material of special assistant for modified portland cement base foam heat-insulating board is: 20 parts of industrial calcium stearates, 5 parts of illite clay or kaolin, 3.5 parts of water-soluble high-molecular compound Xylo-Mucines, 18 parts, nitrocalcite, 13 parts of plaster of Paris, 17 parts, sodium-chlor or calcium chloride, 15 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, 3 parts of economization agents mix.
In the present embodiment, while preparing modified portland cement base foam heat-insulating board, the material mixture ratio of described ordinary Portland cement base foam heat-insulating board is: ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent, whipping agent are according to quality proportioning 180 ︰ 45 ︰ 100 ︰ 10 ︰ 4 ︰ 1 ︰ 1 ︰ 10.
Take each raw material according to proportioning, first water, ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent are inserted in stirrer, stir 170 seconds, then add whipping agent, stir 4 ~ 5 seconds, make mixed slurry; Open immediately discharge door and enter special foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building, under normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packaging, and maintenance was to the 28 days length of time.
Embodiment 3
A kind of proportioning of the each raw material of special assistant for modified portland cement base foam heat-insulating board is: 20 parts of industrial calcium stearates, 5 parts of illite clay or kaolin, 3.5 parts of water-soluble high-molecular compound Xylo-Mucines, 15 parts, nitrocalcite, 18 parts of plaster of Paris, 15 parts, sodium-chlor or calcium chloride, 15 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, 3 parts of economization agents mix.
In the present embodiment, while preparing modified portland cement base foam heat-insulating board, the material mixture ratio of described ordinary Portland cement base foam heat-insulating board is: ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent, whipping agent are according to quality proportioning 140 ︰ 35 ︰ 90 ︰ 12 ︰ 4 ︰ 1 ︰ 1 ︰ 10.
Take each raw material according to proportioning, first water, ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent are inserted in stirrer, stir 170 seconds, then add whipping agent, stir 4 ~ 5 seconds, make mixed slurry; Open immediately discharge door and enter special foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building, under normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packaging, and maintenance was to the 28 days length of time.
Embodiment 4
A kind of proportioning of the each raw material of special assistant for modified portland cement base foam heat-insulating board is: 15 parts of industrial calcium stearates, 10 parts of illite clay or kaolin, 3.5 parts of water-soluble high-molecular compound Xylo-Mucines, 15 parts, nitrocalcite, 8 parts of plaster of Paris, 15 parts, sodium-chlor or calcium chloride, 25 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, 3 parts of economization agents mix.
In the present embodiment, while preparing modified portland cement base foam heat-insulating board, the material mixture ratio of described ordinary Portland cement base foam heat-insulating board is: ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent, whipping agent are according to quality proportioning 140 ︰ 35 ︰ 90 ︰ 12 ︰ 4 ︰ 1 ︰ 1 ︰ 10.
Take each raw material according to proportioning, first water, ordinary Portland cement (silicate cement), flyash, water, the dedicated modified auxiliary agent of a kind of ordinary Portland cement base foam heat-insulating board, silicon ash, polypropylene fibre, high efficiency water reducing agent are inserted in stirrer, stir 170 seconds, then add whipping agent, stir 4 ~ 5 seconds, make mixed slurry; Open immediately discharge door and enter special foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building, under normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packaging, and maintenance was to the 28 days length of time.
In order to verify effect of the present invention, applicant has carried out experimental verification, the physicals of the warming plate that above-described embodiment 1-embodiment 4 is obtained detects, dry density and ultimate compression strength are tested according to GB/T 5486, thermal conductivity is tested according to GB/T 10294, folding strength is tested according to JGJ144, water-intake rate is tested according to JG/T 041-2011, drying shrinkage value and coefficient of softening GB/T 11969 test, softening test coefficient and test according to JGJ51, carbonation coefficient is tested according to JGJ51.Detected result is in table 1.
Table 1
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Dry density (kg/m 3） | 286 | 285 | 242 | 246 |
| Thermal conductivity [W/ (mk)] | 0.07 | 0.07 | 0.06 | 0.06 |
| Ultimate compression strength (MPa) | 0.71 | 0.72 | 0.37 | 0.50 |
| Folding strength (MPa) | 0.19 | 0.22 | 0.12 | 0.14 |
| Water-intake rate (V/V) (%) | 15.8 | 8.1 | 17.8 | 9.3 |
| Drying shrinkage value (mm/m) | 0.49 | 0.52 | 0.42 | 0.48 |
| Coefficient of softening | 0.83 | 0.86 | 0.83 | 0.87 |
| Carbonation coefficient | 0.83 | 0.88 | 0.85 | 0.87 |
Known by above-mentioned detection, above-described embodiment 1 and embodiment 2, they are all 251 ~ 300 kg/m
3class g cement base foam heat-insulating board.Embodiment 2, by adjusting the ratio of suds-stabilizing agent and water-resisting agent, has obtained the hydrophobic effect more excellent than embodiment 1; Embodiment 3 and embodiment 4 are all 200 ~ 250 kg/m
3class g cement base foam heat-insulating board, embodiment 4 urgees solidifying accelerating component and water-resisting agent by adjustment, has obtained the intensity higher than embodiment 3, more excellent hydrophobic effect.Embodiment 2 and embodiment 4 are preferred embodiment, and applicant also delivers to them construction project quality examination center, Chongqing City and detects.Again show from detected result: they not only have lower unit weight, have higher resistance to compression, tensile strength, also there is good thermal conductivity performance simultaneously.This has also proved that from macroscopic property this special assistant has effectively solved that ordinary portland cement foaming walls is thin, pore is unstable, the problem of the uneven maldistribution of Air Bubble Size.
The present invention passes through great many of experiments, on the basis of great many of experiments, will surely steep anti-sloughing agent, short solidifying hardening accelerator, water-resisting agent, microdilatancy, reduce anticracking agent organic complex integral, the time that produces intensity by adjusting the lifetime (amount of suds-stabilizing agent) of foam and the cement slurry problem of mould of easily collapsing when (amount of short solidifying hardening accelerator) solved production; Solve by organic suds-stabilizing agent and inorganic suds-stabilizing agent composite that walls is thin, pore is unstable, the uneven maldistribution of Air Bubble Size, the problem that fraction defective is high; The application of organic waterproof agent and airtight abscess have solved the large problem of product water-intake rate making; Micro-expanding agent and the generation of reducing anticracking agent and can reduce tiny crack, also make foaming system subsurface defect reduce simultaneously; The collocation of rational various components has increased intensity to a certain extent.The problems such as mould, Air Bubble Size inequality, walls is thin, pore is unstable, maldistribution, and fraction defective is high, and the product water-intake rate making is large, and intensity is low of easily collapsing while having solved production ordinary Portland cement or silicate cement foam heat-insulating board.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The present invention is not subject to the restriction of above-described embodiment; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; under the premise without departing from the principles of the invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (2)
1. the special assistant that prepared by modified portland cement base foam heat-insulating board, is characterized in that, adopts the material mixture ratio of following mass parts to form:
10 ~ 20 parts of industry calcium stearates;
5 ~ 10 parts of illite clay and/or kaolin;
0.5 ~ 5 part of water-soluble high-molecular compound Xylo-Mucine;
15 ~ 25 parts, nitrocalcite;
5 ~ 20 parts of plaster of Paris;
15 ~ 25 parts, sodium-chlor and/or calcium chloride;
15 ~ 25 parts of Quilonum Retards;
0.5 ~ 5 part of trolamine;
5 ~ 10 parts of unslaked limes;
1 ~ 5 part of economization agent.
2. a modified portland cement base foam heat-insulating board preparation method, is characterized in that, comprises the following steps:
A, by the batching of following mass parts: 10 ~ 12 parts of special assistants, 4 parts of silicon ashes, 1 part of polypropylene fibre, 1 part of high efficiency water reducing agent prepared by 90 ~ 100 parts, water, 140 ~ 180 parts of ordinary Portland cements, 35 ~ 45 parts, flyash, modified portland cement base foam heat-insulating board claimed in claim 1, join whipping appts, stir 170s;
B, guarantee that the slurry of whipping appts stirs, add the whipping agent of 10 parts of mass parts to stir 4 ~ 5 seconds, open immediately discharge door and enter special foaming mould by slurry;
C, the quiet bubble of stopping paying out of idiosome after building, under normal temperature, leave standstill form removal in 5 hours, and maintenance is cut after 24 hours, packed, then maintenance was to the 28 days length of time.
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| CN104831885A (en) * | 2015-04-03 | 2015-08-12 | 重庆思贝肯节能技术开发有限公司 | Fiber reinforcement foaming cement thermal insulation decoration board |
| CN104891847B (en) * | 2015-05-15 | 2017-07-04 | 山东建筑大学 | A kind of foamed concrete compound additive and its preparation method and application |
| CN104961372B (en) * | 2015-06-10 | 2017-08-25 | 广东首诚建设科技有限公司 | A kind of setting time adjustable waterproof foam stabilizer and preparation method thereof |
| CN105152571B (en) * | 2015-08-04 | 2017-04-12 | 重庆研悦建材有限公司 | Auxiliary agent for A-level fireproof filling for hollow floor and preparation method |
| CN105621932B (en) * | 2015-12-29 | 2018-06-08 | 福建建工建材科技开发有限公司 | Chemical blowing foam concrete foam stabilizing reinforcing agent |
| CN107226657A (en) * | 2017-07-10 | 2017-10-03 | 重庆市胡特建材有限公司 | A kind of fiber-reinforced modified cement insulation board and its preparation technology |
| CN109879643B (en) * | 2019-03-11 | 2021-09-14 | 上海圣奎塑业有限公司 | Insulation board raw material composition, quick-setting insulation board and manufacturing method thereof |
| CN113121189B (en) * | 2021-04-25 | 2022-04-15 | 青岛霍林河新型建材有限公司 | Modified biomass building wall material |
| CN116589256A (en) * | 2023-06-01 | 2023-08-15 | 安徽建筑大学 | Ultra-high performance concrete spray material for facing and processing equipment thereof |
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| CN102424551A (en) * | 2011-09-07 | 2012-04-25 | 重庆大学 | Super light polymer foamed concrete and preparation method thereof |
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