CN103183487A - 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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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 a kind of ordinary Portland cement or silicate cement of utilizing and prepare foamed cement warming plate preparation method and dedicated modified auxiliary agent thereof.
Background technology
For a long time, generally use polystyrene foam (EPS, XPS), rigid polyurethane foam organic insulation materials such as (PU) on China's construction market, it has advantages such as lightweight, high insulating effect, but inflammable, easy aging, poor durability, various places heat-preserving building engineering presence of fire accident repeatedly, EPS will soon melt during fire, and smog is big, toxicity is big, be difficult to put out a fire to save life and property, harm is serious.For Pu, except fire prevention and price problem, to the weather sensitivity, the wind influence sprayed, the moisture effect bonding when also existence was constructed, and contraction is distributed defectives such as poison gas greatly during 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.Simultaneously, change styrofoam and also will cause environmental hazards such as white pollution.
According to the incomplete statistics of China Fire-Fighting Bureau under the Ministry of Public Security, the outer heat insulating work fire that led to grave consequences in 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 vary, mainly be that fire retardant performance is not good, building, CCTV new address big fire in recent years, the big fire of Jing'an Monastery, Shanghai teacher apartment big fire contour level building are suffered heavy losses, and the lagging material of exterior wall finishing is flammable to be major cause.That organic insulation material exterior-wall heat insulation engineering fire has is inflammable, igniting property strong, quick stereo fire, control difficulty are big, fire focuses mostly in dangerous defective such as big 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 the 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 the building heat preservation fire safety problem, the fire resistance of building heat preservation is guaranteed in these new technical requirementss, but increase difficulty of construction and the cost of engineering largely, 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 begun to promote the technical study of inorganic heat preservation plate in recent years.Cement based foaming cement thermal insulation plate is inorganic materials A level fire prevention, and to be all cement based easier to be bonding with body of wall with body of wall, and weather resistance is good, but it is uneven to utilize ordinary Portland cement to prepare foamed cement warming plate quality, the intensity that has is low, the unit weight height, and thermal conductivity is big.Utilize the research of cement production foamed heat insulating cement heat preserving plate at present and use mostly and prepare foamed concrete at employing special cement (aluminosulfate cement, ferro-aluminate cement etc.), 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 guarantee that bubble is not broken, but special cement later strength retraction and expensive and output is little, it is wideless to distribute has limited the conversion of these achievements.
Utilize ordinary Portland cement to do main gelling material agent and prepare the foaming cement thermal insulation plate of foaming cement thermal insulation plate with its light weight, the intensity height, durable, low cost and other advantages meets the demands, market enlarges rapidly, producer and output are also increased sharply, but because state of the art is uneven, bad during the quality fashion, mould easily collapses when mainly being production, the bubble size is uneven, maldistribution, the fraction defective height, the product water-intake rate that makes is big, and low these problems of intensity have perplexed some producers, and the special assistant of a kind of modified cement-based foam heat-insulating board that we invent can effectively help them to improve quality product.
Summary of the invention
Technical problem to be solved by this invention is, how a kind of special assistant of modified portland cement base foam heat-insulating board preparation is provided, 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 easily collapse when producing ordinary Portland cement or silicate cement foam heat-insulating board mould, not of uniform size, the maldistribution of bubble, the fraction defective height, problems such as the product water-intake rate that makes is big, and intensity is low.This auxiliary agent for modified portland cement base foam heat-insulating board can satisfy 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 kind of special assistant of modified portland cement base foam heat-insulating board preparation 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 in nitrocalcite;
5 ~ 20 parts of plaster of Paris;
15 ~ 25 parts in 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.
A kind of dedicated modified auxiliary agent for preparing modified cement-based foam heat-insulating board on the basis of a large amount of tests, organically is re-dubbed one with above-mentioned multiple material, and guarantees to have good consistency between the various materials.It has following effect: surely steep anti-collapse; Short coagulating early by force; Hydrophobic; Microdilatancy, reduce anticracking.
Industrial calcium stearate, illite clay or kaolin, water-soluble high-molecular compound Xylo-Mucine have the anti-collapse effect of steady bubble in the above-mentioned materials proportioning.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 the short early strength function of coagulating; 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 the short early strength function of coagulating; Nitrocalcite, Quilonum Retard not only promote the aquation of cement, also be good frostproofer simultaneously, it can effectively reduce the freezing point of water, can promote concrete gain in strength under subzero temperature, under the situation in the winter time and short coagulate the ordinary production that hardening accelerator has guaranteed sheet material together.
Industry calcium stearate, water-soluble high-molecular compound Xylo-Mucine have the hydrophobic effect; Water-soluble high-molecular compound Xylo-Mucine, industrial calcium stearate have hydrophobic functional group, be dispersed in the cement cell wall uniformly and have the hydrophobic effect after the cement slurry sclerosis.
Plaster of Paris, unslaked lime, economization agent have microdilatancy, reduce the effect of anticracking.The ettringite that plaster of Paris, unslaked lime and cement reaction generate has certain microdilatancy effect, can offset the contraction of a part of cement, and they and economization agent acting in conjunction have the effect of reducing anticracking.
In the cement slurry whipping process, inorganic illite clay or kaolin and organic industrial calcium stearate, water-soluble high-molecular compound Xylo-Mucine are dispersed in the slurry jointly, inorganic organic synergy has guaranteed the cement slurry dispersing uniformity, and the main support power of foam is provided in building back 3h; The interpolation of nitrocalcite, plaster of Paris, sodium-chlor or calcium chloride, Quilonum Retard, unslaked lime makes cement slurry begin to condense at 1.5 ~ 2.5h, and foam stabilization time and cement setting time harmonious guaranteed the foam cement idiosome mould that do not collapse; Simultaneously 3h later on short coagulate that accelerating component impels that cement slurry generates have a microdilatancy effect ettringite, with the economization agent of admixture reduced jointly 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, may further comprise the steps:
A, with the batching of following mass parts: 90 ~ 100 parts in water, 140 ~ 180 parts of ordinary Portland cements (silicate cement), 35 ~ 45 parts in 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 discharge door immediately and enter special-purpose foaming mould by slurry;
C, the quiet bubble of stopping paying out of idiosome after building leave standstill form removal in 5 hours under the normal temperature, maintenance is cut after 24 hours, packed, and gets final product maintenance to the 28 days length of time again.
The flyash of admixture has pozzolanic activity and micro aggregate effect in the above-mentioned steps, can improve the density of cement stone, and then improves intensity; The specific surface area that activated grammite is high can improve the denseness of cement slurry, easier steady bubble; The adding of polypropylene fibre can significantly improve folding strength and the snappiness of cement sheet material.
When cement slurry stirred, whipping agent should stir in slurry, guaranteed to stir the foam that destroys still less again; Attempt by a large amount of experiments, churning time was optimal selection in 4 ~ 5 seconds.
The present invention has the following advantages:
1. auxiliary agent preparation technology of the present invention is simple, the mould that easily collapses when having solved production ordinary Portland cement or silicate cement foam heat-insulating board, not of uniform size, the maldistribution of bubble, fraction defective height, the product water-intake rate that makes is big, problems such as intensity is low are never degenerated convenient transportation in 1 ~ 2 year simultaneously; 2. added this auxiliary agent when the present invention prepares the foaming cement thermal insulation plate, made its warming plate that makes have the walls thickening, pore is stable, the advantage that is 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 the 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 to stir in the raw materials such as cement, flyash and get final product.
Embodiment
The present invention will be further described below in conjunction with embodiment.
Embodiment 1
In the present embodiment, each proportion of raw materials of special assistant that is used 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, 20 parts in nitrocalcite, 13 parts of plaster of Paris, 15 parts in sodium-chlor or calcium chloride, 15 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, economization agent mixes for 3 parts.
In the present embodiment, during preparation 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 by weighing each raw material according to proportioning, earlier 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 the stirrer, stirred 170 seconds, add whipping agent then, stirred 4 ~ 5 seconds, and made mixed slurry; Open discharge door immediately and enter special-purpose foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building under the normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packing, and maintenance was to the 28 days length of time.
Embodiment 2
A kind of each proportion of raw materials 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 in nitrocalcite, 13 parts of plaster of Paris, 17 parts in sodium-chlor or calcium chloride, 15 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, economization agent mixes for 3 parts.
In the present embodiment, during preparation 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 by weighing each raw material according to proportioning, earlier 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 the stirrer, stirred 170 seconds, add whipping agent then, stirred 4 ~ 5 seconds, and made mixed slurry; Open discharge door immediately and enter special-purpose foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building under the normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packing, and maintenance was to the 28 days length of time.
Embodiment 3
A kind of each proportion of raw materials 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 in nitrocalcite, 18 parts of plaster of Paris, 15 parts in sodium-chlor or calcium chloride, 15 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, economization agent mixes for 3 parts.
In the present embodiment, during preparation 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 by weighing each raw material according to proportioning, earlier 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 the stirrer, stirred 170 seconds, add whipping agent then, stirred 4 ~ 5 seconds, and made mixed slurry; Open discharge door immediately and enter special-purpose foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building under the normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packing, and maintenance was to the 28 days length of time.
Embodiment 4
A kind of each proportion of raw materials 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 in nitrocalcite, 8 parts of plaster of Paris, 15 parts in sodium-chlor or calcium chloride, 25 parts of Quilonum Retards, 0.5 part of trolamine, 5 parts of unslaked limes, economization agent mixes for 3 parts.
In the present embodiment, during preparation 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 by weighing each raw material according to proportioning, earlier 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 the stirrer, stirred 170 seconds, add whipping agent then, stirred 4 ~ 5 seconds, and made mixed slurry; Open discharge door immediately and enter special-purpose foaming mould by slurry.The quiet bubble of stopping paying out of idiosome after building under the normal temperature, leaves standstill form removal in 5 hours, cutting after 24 hours, packing, and maintenance was to the 28 days length of time.
In order to verify effect of the present invention, the 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, the carbonization coefficient is tested according to JGJ51.Detected result sees 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 |
| The carbonization coefficient | 0.83 | 0.88 | 0.85 | 0.87 |
By above-mentioned detection as can be known, above-described embodiment 1 and embodiment 2, they are all 251 ~ 300 kg/m
3Class g cement base foam heat-insulating board.Embodiment 2 is by adjusting the ratio of suds-stabilizing agent and water-resisting agent, 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 be by adjusting short accelerating component and the water-resisting agent of coagulating, and obtained the intensity higher than embodiment 3, more excellent hydrophobic effect.Embodiment 2 and embodiment 4 are preferred embodiment, and the applicant also delivers to them construction project quality examination center, Chongqing City and detects.Show again from detected result: they not only have lower unit weight, and higher compression, tensile strength are arranged, and also have good thermal conductivity performance simultaneously.This has also effectively solved from clear this special assistant of macroscopic property Shanghai Stock Exchange, and ordinary portland cement foaming walls is thin, pore is unstable, the problem of the big or small uneven maldistribution of bubble.
The present invention is by a large amount of experiments, on the basis of a large amount of experiments, will surely steep anti-collapse dose, short hardening accelerator, water-resisting agent, microdilatancy with fixed attention, reduce the anticracking agent organic complex and be integral, easily collapse when the having solved production problem of mould of the time (short amount of coagulating hardening accelerator) that the lifetime (amount of suds-stabilizing agent) by adjusting foam and cement slurry produce intensity; Solved by organic suds-stabilizing agent and inorganic suds-stabilizing agent composite that walls is thin, pore is unstable, the big or small uneven maldistribution of bubble, the problem that fraction defective is high; The application of organic waterproof agent and airtight abscess have solved the big problem of product water-intake rate that makes; Micro-expanding agent and reduce the generation that anticracking agent can reduce tiny crack also makes the foaming system subsurface defect reduce simultaneously; The collocation of rational various components has increased intensity to a certain extent.Easily collapsing when having solved production ordinary Portland cement or silicate cement foam heat-insulating board, mould, bubble size is uneven, walls is thin, pore is unstable, maldistribution, fraction defective height, problem such as the product water-intake rate that makes is big, and intensity is low.
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 subjected to the restriction of above-described embodiment; that describes in above-described embodiment and the specification sheets just illustrates principle of the present invention; under the prerequisite that does not break away from the principle 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 of a modified portland cement base foam heat-insulating board preparation 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 in nitrocalcite;
5 ~ 20 parts of plaster of Paris;
15 ~ 25 parts in 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, may further comprise the steps:
A, with the batching of following mass parts: 90 ~ 100 parts in water, 140 ~ 180 parts of ordinary Portland cements, 35 ~ 45 parts in flyash, 10 ~ 12 parts of the dedicated modified auxiliary agents of the described ordinary Portland cement base of claim 1 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 discharge door immediately and enter special-purpose foaming mould by slurry;
C, the quiet bubble of stopping paying out of idiosome after building under the normal temperature, leave standstill form removal in 5 hours, and maintenance is cut after 24 hours, packed, and gets final product maintenance to the 28 days length of time again.
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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 |
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| CN105152571A (en) * | 2015-08-04 | 2015-12-16 | 重庆研悦建材有限公司 | Auxiliary agent for A-level fireproof filling for hollow floor and preparation method |
| 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 |
| CN105621932A (en) * | 2015-12-29 | 2016-06-01 | 福建建工建材科技开发有限公司 | Foam-stabilizing reinforcing agent for chemical-foamed foam concrete |
| 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 |
| CN109879643A (en) * | 2019-03-11 | 2019-06-14 | 上海圣奎塑业有限公司 | Insulation board feedstock composition, rapid hardening insulation board and preparation method thereof |
| CN113121189A (en) * | 2021-04-25 | 2021-07-16 | 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 |
| CN116589256B (en) * | 2023-06-01 | 2024-07-19 | 安徽建筑大学 | Ultra-high performance concrete spray material for facing and processing equipment thereof |
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