CN108585636A - a kind of environment-friendly foaming cement and preparation method thereof - Google Patents
a kind of environment-friendly foaming cement and preparation method thereof Download PDFInfo
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- CN108585636A CN108585636A CN201810213812.2A CN201810213812A CN108585636A CN 108585636 A CN108585636 A CN 108585636A CN 201810213812 A CN201810213812 A CN 201810213812A CN 108585636 A CN108585636 A CN 108585636A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
Abstract
A kind of environment-friendly foaming cement of present invention offer and preparation method thereof, the raw material of the foam cement includes in parts by weight：1~2 part of 20~40 parts of cement, 5~10 parts of flyash, 50~70 parts of construction refuse regenerated sand, 4~5 parts of foaming agent, 8~16 parts of water and auxiliary agent.The technical performances such as the foam cement intensity, density and thermal coefficient performance meet the organic insulation material of the requirement replacement fire protecting performance difference of thermal insulation material, both foam cement problem of high cost can have been reduced, the regeneration problem for also solving the problem that the solid waste such as building waste achievees the purpose that the national energy-saving and environment friendly advocated energetically, comprehensive utilization of resources and develops a circular economy.
Description
Technical field
The invention belongs to building material fields, are related to a kind of green building material, more particularly to a kind of environment-friendly foaming cement and its
Preparation method.
Background technology
The earliest foam cement in China is prepared under being instructed by former Soviet Union expert and for the first time by foam cement for building
Heat preservation.Success is achieved with flyash substitution cement and experiment in order to reduce cost later, by foam cement cost reduction
40%.Before and after 1980, as the wind of reform is founded state door, European foam cement cast in place technique enters the opening in China
Forward position Guangdong, foam cement roof heat insulation is cast-in-place gradually northwards to be promoted, and is gone up north all the way through provinces such as Fujian, Hunan, Jiangxi, 2006
After, China enters the booming new era with the cast-in-place foam cement for representative.At this point, the foam cement base in China
This is with cast-in-place for supplemented by main product.And cement board had gradually captured market in recent years, on the one hand mainly due to country
It goes into overdrive to the energy conservation and environmental protection of building, on the other hand with the appearance of new code for fire protection design, the thermal insulation material of organic
Market gradually reduces.This is mainly manifested in the historic opportunities for having encountered building energy conservation, and foam cement is as the excellent of multifunctional material
Gesture shows with the development of science and technology and increasingly, and building heat preservation is a huge market, in 10 years following, thermal insulation material demand
At least also there is several hundred billion yuan of market capacity.National departments concerned is formulating the limitation in building heat preservation and is using and be phased out
The policy of foamed plastics, this will create a booming big good opportunity for foam cement.If foam cement industry can be caught
This historic opportunities, foam cement will become the first big building thermal insulation material.The developing direction of foam cement technology：(1) surpass
Low-density refers to that density is less than 100kg/m3Foam cement.Its thermal coefficient is about 0.04~0.05W/ (mK).With it is poly-
Benzene cystosepiment is substantially suitable.To be that it replaces styrofoam to spread out broadness greatly comprehensively if we can develop such foam cement
Road.Currently, 100kg/m3The product of left and right can have been made in laboratory, but how realize industrialization steady production, go forward side by side
One step reduces density to 50~80kg/m3, just become the target made joint efforts in next step.The major defect of foam cement is exactly strong
It spends low, how to improve its intensity, be a long-term technical task.Especially 100~300kg/m3Low density products, it is strong
Spend worst, but demand is again maximum.
Currently, most enterprises produce foam cement, all using cement, cost is higher, in the competition with polyphenyl foam
In there is no cost advantage.How cement consumption is reduced, reduce cost, also will be the important topic of the whole industry.Most importantly mesh
The regeneration of building waste is carried out energetically by preceding country, advocates energy conservation and environmental protection, and comprehensive utilization of resources is developed a circular economy.
Invention content
To solve the technical problems existing in the prior art, a kind of environment-friendly foaming cement of present invention offer and its preparation side
Method, for the foam cement using cement as major gelled material, construction refuse regenerated emery dust replaces flyash according to a certain percentage
And cement keeps foam cement intensity, density and thermal coefficient performance etc. technical by adjusting being formulated and adding extraordinary additive
The requirement that thermal insulation material can be met substitutes the organic insulation material of fire protecting performance difference, can both reduce that foam cement is of high cost to ask
Topic, also solve the problem that the regeneration problem of the solid waste such as building waste, reach country advocate energetically energy-saving and environment friendly,
Comprehensive utilization of resources and the purpose developed a circular economy.
In order to achieve the above objectives, the present invention uses following technical scheme：
It is an object of the present invention to provide a kind of environment-friendly foaming cement, the raw material of the foam cement in parts by weight
Including：
Wherein, the parts by weight of cement can be 20 parts, 22 parts, 25 parts, 28 parts, 30 parts, 32 parts, 35 parts, 38 parts or 40 parts
Deng the parts by weight of flyash can be 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts or 10
Part etc., the parts by weight of construction refuse regenerated sand can be 50 parts, 52 parts, 55 parts, 58 parts, 60 parts, 62 parts, 65 parts, 68 parts or 70
Part etc., the parts by weight of foaming agent can be 4 parts, 4.1 parts, 4.2 parts, 4.3 parts, 4.4 parts, 4.5 parts, 4.6 parts, 4.7 parts, 4.8 parts,
4.9 parts or 5 parts etc., the parts by weight of water can be 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts or 16 parts etc., help
The parts by weight of agent can be 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts or 2
Part etc., it is not limited to cited numerical value, other interior unrequited numerical value of above-mentioned each numberical range are equally applicable.
As currently preferred technical solution, the raw material of the foam cement includes in parts by weight：
The preparation method of construction refuse regenerated emery dust is：The building of removal is tentatively sorted by removal team at the scene,
It is transportable and be further finely crushed the rubbish of required Feed size that building is broken into certain size, while by reinforcing bar
It elects, preliminary broken building waste passes through the particle that fine crusher is broken into 0~4mm and 4~10mm through one, this
Its grinds is made the loss on ignition of powder by partial particulate via milling equipment by incorporation grinding agent and corresponding exciting agent,
The indexs such as specific surface area, fineness, activity index and density meet the technical standard of the flyash applied to cement and concrete, most
The volume for determining construction refuse regenerated powder by experiments such as glue sand afterwards determines that construction refuse regenerated powder substitutes the dosage of flyash.
As currently preferred technical solution, the foaming agent is hydrogen peroxide.
As currently preferred technical solution, the auxiliary agent includes foam stabilizer, waterproofing agent, water-reducing agent, superpower nucleus, mixes
Solidifying potent dose of soil, welan gum and anticracking material.
As currently preferred technical solution, the foam stabilizer and waterproofing agent are calcium stearate.
Preferably, the parts by weight of the calcium stearate be 0.4~0.8 part, such as 0.4 part, 0.45 part, 0.5 part, 0.55 part,
0.6 part, 0.65 part, 0.7 part, 0.75 part or 0.8 part etc., it is not limited to cited numerical value, in the numberical range other
Unrequited numerical value is equally applicable.
Preferably, the water-reducing agent includes lignin sulfonate water-reducing agent, naphthalene water reducer, melamine class diminishing
Any one in agent, sulfamic acid salt water-reducing agent, fatty acid water-reducing agent or polycarboxylate dehydragent or at least two group
It closes, combination typical case but non-property example has：The combination of lignin sulfonate water-reducing agent and naphthalene water reducer, naphthalene system subtract
The combination of aqua and melamine class water-reducing agent, the combination of melamine class water-reducing agent and sulfamic acid salt water-reducing agent, amino
The combination of Sulfonates water-reducing agent and fatty acid water-reducing agent, fatty acid water-reducing agent and polycarboxylate dehydragent combine, gather
The combination of carboxylate water-reducing agent and lignin sulfonate water-reducing agent or lignin sulfonate water-reducing agent, sulfamic acid salt subtract
The combination etc. of aqua and polycarboxylate dehydragent.
Preferably, the parts by weight of the water-reducing agent be 0.2~0.4 part, such as 0.2 part, 0.22 part, 0.25 part, 0.28 part,
0.3 part, 0.32 part, 0.35 part, 0.38 part or 0.4 part etc., it is not limited to cited numerical value, in the numberical range other
Unrequited numerical value is equally applicable.
Preferably, the parts by weight of the superpower nucleus be 0.1~0.3 part, such as 0.1 part, 0.12 part, 0.15 part, 0.18 part,
0.2 part, 0.22 part, 0.25 part, 0.28 part or 0.3 part etc., it is not limited to cited numerical value, in the numberical range other
Unrequited numerical value is equally applicable.
The superpower nucleus is the superpower nucleus of concrete, is a kind of super high-early concrete function additive, from hydrated cementitious original
Reason is set out, and is significantly shifted to an earlier date hydrated cementitious induction period by nucleus effect, is accelerated hydrated cementitious process, significantly improve concrete 24
Early strength in hour, especially 10 hours intensity, and late strength of concrete development and its durability are not influenced.
Preferably, the parts by weight of the Concrete strength agent be 0.01~0.02 part, such as 0.01 part, 0.011 part, 0.012
Part, 0.013 part, 0.014 part, 0.015 part, 0.016 part, 0.017 part, 0.018 part, 0.019 part or 0.02 part etc., but simultaneously not only
It is limited to cited numerical value, other unrequited numerical value are equally applicable in the numberical range.
The effect of the Concrete strength agent is effective disperse cement particles, so that cement and water is come into full contact with and carries out water
Change reaction, increases the adsorption capacity of water-reducing agent, while improving the workability of concrete.Ingredient includes triisopropanolamine, polymeric alcohol
Amine, fatty acid ester and maleic anhydride etc..
Preferably, the parts by weight of the welan gum be 0.01~0.02 part, such as 0.01 part, 0.011 part, 0.012 part,
0.013 part, 0.014 part, 0.015 part, 0.016 part, 0.017 part, 0.018 part, 0.019 part or 0.02 part etc., but simultaneously not only limit
It is equally applicable in other unrequited numerical value in cited numerical value, the numberical range.
Preferably, the anticracking material is polymer fiber, preferably PP fibers.
Preferably, the mass parts of the anticracking material be 0.2~0.4 part, such as 0.2 part, 0.22 part, 0.25 part, 0.28 part,
0.3 part, 0.32 part, 0.35 part, 0.38 part or 0.4 part etc., it is not limited to cited numerical value, in the numberical range other
Unrequited numerical value is equally applicable.
The second purpose of the present invention is to provide a kind of preparation method of above-mentioned environment-friendly foaming cement, the preparation method includes
Following steps：
Water is added into the mixture containing cement, flyash, construction refuse regenerated sand and auxiliary agent, adds foaming
Agent, stand foaming, obtains the foam cement after mixing.
As currently preferred technical solution, the temperature of the water is 35~45 DEG C, such as 35 DEG C, 36 DEG C, 37 DEG C, 38
DEG C, 39 DEG C, 40 DEG C, 41 DEG C, 42 DEG C, 43 DEG C, 44 DEG C or 45 DEG C etc., it is not limited to cited numerical value, the numberical range
Other interior unrequited numerical value are equally applicable.
As currently preferred technical solution, it is added before foaming agent and the first stirring is carried out to the mixture that water is added.
Preferably, it is described first stirring rate be more than or equal to 150rpm, as 150rpm, 200rpm, 300rpm,
500rpm, 800rpm, 1000rpm, 1200rpm or 1500rpm etc., it is not limited to cited numerical value, the numberical range
Other interior unrequited numerical value are equally applicable.
Preferably, it is described first stirring time be 10~20s, as 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s,
18s, 19s or 20s etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range are equally applicable.
Preferably, the second stirring is carried out after foaming agent is added.
Preferably, it is described second stirring rate be 100~150rpm, as 100rpm, 110rpm, 120rpm, 130rpm,
140rpm or 150rpm etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range are equally suitable
With.
As currently preferred technical solution, time of the foaming is 3~10min, as 3min, 4min, 5min,
6min, 7min, 8min, 9min or 10min etc., it is not limited to cited numerical value, other are unrequited in the numberical range
Numerical value it is equally applicable.
As currently preferred technical solution, to mixing containing cement, flyash, construction refuse regenerated sand and auxiliary agent
The water of 35~45 DEG C of addition in object is closed, and stirs 10~20s under the rate more than or equal to 150rpm, adds foaming agent,
It is stirred under the rate of 100~150rpm, after mixing 3~10min of stand foaming, obtains the foam cement.
Compared with prior art, the present invention at least has the advantages that：
(1) present invention provides a kind of environment-friendly foaming cement, and the foam cement density is less than 200kg/m3Foam cement
Intensity is more than 0.7MPa, thermal coefficient is less than 0.04W/ (mK), and technical performance meets the requirement of thermal insulation material and alternative anti-
The organic insulation material of fiery poor performance；
(2) present invention provides a kind of environment-friendly foaming cement, and not only relatively traditional foam cement cost drops the foam cement
Low 30% or more, it also solves the problem that the regeneration problem of the solid waste such as building waste, reaches the green that country advocates energetically
Energy conservation and environmental protection, comprehensive utilization of resources and the purpose developed a circular economy.
Specific implementation mode
Of the invention for ease of understanding, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is only to aid in the understanding present invention, should not be regarded as a specific limitation of the invention.
Embodiment 1
The present embodiment provides a kind of preparation methods of environment-friendly foaming cement, and the preparation method comprises the following steps；
As currently preferred technical solution, to containing 20 parts of cement, 5 parts of flyash, 50 parts of construction refuse regenerated sand
And 0.4 part of calcium stearate, 0.2 part of polycarboxylic acid salt's water-reducing agent, 0.1 part of superpower nucleus, 0.01 part of Concrete strength agent, 0.01
8 parts 35 DEG C of water is added in the mixture of part welan gum and 0.2 part of PP fiber, and stirs 20s under the rate of 150rpm, then adds
Enter 4 parts of hydrogen peroxide, stirred under the rate of 100rpm, after mixing stand foaming 3min, obtains the foam cement.
Embodiment 2
The present embodiment provides a kind of preparation methods of environment-friendly foaming cement, and the preparation method comprises the following steps；
As currently preferred technical solution, to containing 40 parts of cement, 10 parts of flyash, 70 parts of construction refuse regenerated sand
And 0.8 part of calcium stearate, 0.4 part of lignin sulfonate water-reducing agent, 0.3 part of superpower nucleus, 0.02 part of Concrete strength agent,
16 parts 45 DEG C of water is added in the mixture of 0.02 part of welan gum and 0.4 part of PP fiber, and stirs at 1500 rpm
10s adds 5 parts of hydrogen peroxide, is stirred under the rate of 150rpm, after mixing stand foaming 3min, obtains the foaming
Cement.
Embodiment 3
The present embodiment provides a kind of preparation methods of environment-friendly foaming cement, and the preparation method comprises the following steps；
As currently preferred technical solution, to containing 25 parts of cement, 6 parts of flyash, 55 parts of construction refuse regenerated sand
And 0.5 part of calcium stearate, 0.25 part of melamine class water-reducing agent, 0.15 part of superpower nucleus, 0.012 part of Concrete strength agent,
10 parts 38 DEG C of water is added in the mixture of 0.012 part of welan gum and 0.25 part of PP fiber, and is stirred under the rate of 300rpm
12s adds 4.2 parts of hydrogen peroxide, is stirred under the rate of 120rpm, after mixing stand foaming 8min, obtains the hair
Soaked mud.
Embodiment 4
The present embodiment provides a kind of preparation methods of environment-friendly foaming cement, and the preparation method comprises the following steps；
As currently preferred technical solution, to containing 35 parts of cement, 8 parts of flyash, 65 parts of construction refuse regenerated sand
And 0.5 part of calcium stearate, 0.35 part of melamine class water-reducing agent, 0.25 part of superpower nucleus, 0.018 part of Concrete strength agent,
15 parts 40 DEG C of water is added in the mixture of 0.018 part of welan gum and 0.35 part of PP fiber, and is stirred under the rate of 300rpm
12s adds 4.8 parts of hydrogen peroxide, is stirred under the rate of 140rpm, after mixing stand foaming 6min, obtains the hair
Soaked mud.
Embodiment 5
The present embodiment provides a kind of preparation methods of environment-friendly foaming cement, and the preparation method comprises the following steps；
As currently preferred technical solution, to containing 30 parts of cement, 7 parts of flyash, 60 parts of construction refuse regenerated sand
And 0.6 part of calcium stearate, 0.3 part of melamine class water-reducing agent, 0.2 part of superpower nucleus, 0.015 part of Concrete strength agent,
12 parts 40 DEG C of water is added in the mixture of 0.015 part of welan gum and 0.3 part of PP fiber, and is stirred under the rate of 500rpm
15s adds 4.5 parts of hydrogen peroxide, is stirred under the rate of 150rpm, after mixing stand foaming 5min, obtains the hair
Soaked mud.
Comparative example 1
In this comparative example other than 60 parts of construction refuse regenerated sand are replaced with 60 parts of flyash, other conditions with implementation
Example 5 is identical.
Comparative example 2
In this comparative example other than not adding Concrete strength agent, other conditions are same as Example 5.
To density, mechanical strength and the thermal coefficient of the obtained foam cement of embodiment 1-5 and comparative example 1 and 2 into
Row test, the results are shown in Table 1.
Table 1
| Project | Density/kg/m3 | Compression strength/MPs | Thermal coefficient/W/ (mK) |
| Embodiment 1 | 195 | 0.81 | 0.039 |
| Embodiment 2 | 160 | 0.72 | 0.036 |
| Embodiment 3 | 155 | 0.70 | 0.035 |
| Embodiment 4 | 205 | 0.88 | 0.040 |
| Embodiment 5 | 180 | 0.71 | 0.036 |
| Comparative example 1 | 190 | 0.62 | 0.038 |
| Comparative example 2 | 182 | 0.65 | 0.037 |
It can be seen from Table 1 that the density for the foam cement that 1-5 of the embodiment of the present invention is prepared is less than 200kg/m3's
Foam cement intensity is more than 0.7MPa, thermal coefficient is less than 0.04W/ (mK), and technical performance meets the requirement of thermal insulation material simultaneously
The organic insulation material of alternative fire protecting performance difference.Comparative example 1 is not used construction refuse regenerated sand and uses traditional fine coal
Ash causes the density of foam cement to rise, and compression strength is declined.And comparative example 2 is addition Concrete strength agent, is caused
The hydration reaction degree of cement and water slightly reduces, and the compression strength of foam cement is caused to decline.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological processes, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, the selection etc. of concrete mode all fall within the present invention's
Within protection domain and the open scope.
Claims (10)
1. a kind of environment-friendly foaming cement, which is characterized in that the raw material of the foam cement includes in parts by weight：
2. foam cement according to claim 1, which is characterized in that the raw material packet of the foam cement in parts by weight
It includes：
3. foam cement according to claim 1 or 2, which is characterized in that the foaming agent is hydrogen peroxide.
4. foam cement according to claim 1 or 2, which is characterized in that the auxiliary agent includes foam stabilizer, waterproofing agent, subtracts
Aqua, superpower nucleus, Concrete strength agent, welan gum and anticracking material.
5. foam cement according to claim 4, which is characterized in that the foam stabilizer and waterproofing agent are calcium stearate；
Preferably, the parts by weight of the calcium stearate are 0.4~0.8 part；
Preferably, the water-reducing agent includes lignin sulfonate water-reducing agent, naphthalene water reducer, melamine class water-reducing agent, ammonia
Any one in base Sulfonates water-reducing agent, fatty acid water-reducing agent or polycarboxylate dehydragent or at least two combination, it is excellent
It is selected as polycarboxylate water-reducer；
Preferably, the parts by weight of the water-reducing agent are 0.2~0.4 part；
Preferably, the parts by weight of the superpower nucleus are 0.1~0.3 part；
Preferably, the parts by weight of the Concrete strength agent are 0.01~0.02 part；
Preferably, the parts by weight of the welan gum are 0.01~0.02 part；
Preferably, the anticracking material is polymer fiber, preferably PP fibers；
Preferably, the mass parts of the anticracking material are 0.2~0.4 part.
6. a kind of preparation method of any one of claim 1-5 environment-friendly foaming cement, which is characterized in that the preparation method
Include the following steps：
Water is added into the mixture containing cement, flyash, construction refuse regenerated sand and auxiliary agent, adds foaming agent, mixes
Stand foaming after closing uniformly, obtains the foam cement.
7. preparation method according to claim 6, which is characterized in that the temperature of the water is 35~45 DEG C.
8. the preparation method described according to claim 6 or 7, which is characterized in that the mixture of addition water before addition foaming agent
Carry out the first stirring；
Preferably, the rate of first stirring is more than or equal to 150rpm；
Preferably, the time of first stirring is 10~20s；
Preferably, the second stirring is carried out after foaming agent is added；
Preferably, the rate of second stirring is 100~150rpm.
9. according to claim 6-8 any one of them preparation methods, which is characterized in that the time of the foaming be 3~
10min。
10. according to claim 6-9 any one of them preparation methods, which is characterized in that the preparation method includes following step
Suddenly：
35~45 DEG C of water is added into the mixture containing cement, flyash, construction refuse regenerated sand and auxiliary agent, and big
10~20s is stirred under the rate equal to 150rpm, foaming agent is added, is stirred under the rate of 100~150rpm, and mixing is equal
3~10min of stand foaming, obtains the foam cement after even.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110228961A (en) * | 2019-05-29 | 2019-09-13 | 广东冠生土木工程技术股份有限公司 | A kind of foaming agent and preparation method thereof |
| CN113149706A (en) * | 2021-04-22 | 2021-07-23 | 福建豪科建设发展有限公司 | High-performance foamed concrete and application thereof in revetment retaining wall |
| CN113429183A (en) * | 2021-07-13 | 2021-09-24 | 上海建工建材科技集团股份有限公司 | High-doping-amount regenerated sand powder-based foam concrete and preparation method thereof |
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| CN103253960A (en) * | 2013-05-28 | 2013-08-21 | 北京建筑工程学院 | Foaming thermal mortar and preparation method thereof |
| CN105218146A (en) * | 2015-11-12 | 2016-01-06 | 湖南工业大学 | The low-density foamed concrete of a kind of heat preservation and soundproof |
| WO2016133463A1 (en) * | 2015-02-17 | 2016-08-25 | Nanyang Technological University | Method of manufacturing a lightweight material |
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| CN102815964A (en) * | 2012-09-17 | 2012-12-12 | 陕西建工集团总公司 | Construction waste recycling and reusing process |
| CN103253960A (en) * | 2013-05-28 | 2013-08-21 | 北京建筑工程学院 | Foaming thermal mortar and preparation method thereof |
| WO2016133463A1 (en) * | 2015-02-17 | 2016-08-25 | Nanyang Technological University | Method of manufacturing a lightweight material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110228961A (en) * | 2019-05-29 | 2019-09-13 | 广东冠生土木工程技术股份有限公司 | A kind of foaming agent and preparation method thereof |
| CN113149706A (en) * | 2021-04-22 | 2021-07-23 | 福建豪科建设发展有限公司 | High-performance foamed concrete and application thereof in revetment retaining wall |
| CN113429183A (en) * | 2021-07-13 | 2021-09-24 | 上海建工建材科技集团股份有限公司 | High-doping-amount regenerated sand powder-based foam concrete and preparation method thereof |
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Application publication date: 20180928 |