CN104003680B - Self-heat conserving masonry is built by laying bricks or stones and is used heat insulating mortar powder - Google Patents
Self-heat conserving masonry is built by laying bricks or stones and is used heat insulating mortar powder Download PDFInfo
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- CN104003680B CN104003680B CN201410267291.0A CN201410267291A CN104003680B CN 104003680 B CN104003680 B CN 104003680B CN 201410267291 A CN201410267291 A CN 201410267291A CN 104003680 B CN104003680 B CN 104003680B
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- 239000000843 powder Substances 0.000 title claims abstract description 80
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 72
- 239000011449 brick Substances 0.000 title claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 239000004816 latex Substances 0.000 claims abstract description 24
- 229920000126 latex Polymers 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000011810 insulating material Substances 0.000 claims description 53
- 238000009413 insulation Methods 0.000 claims description 40
- 239000012744 reinforcing agent Substances 0.000 claims description 27
- 238000004321 preservation Methods 0.000 claims description 22
- 239000011490 mineral wool Substances 0.000 claims description 12
- 239000010451 perlite Substances 0.000 claims description 8
- 235000019362 perlite Nutrition 0.000 claims description 8
- 239000010455 vermiculite Substances 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 239000004113 Sepiolite Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 235000019355 sepiolite Nutrition 0.000 claims description 5
- 229910052624 sepiolite Inorganic materials 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000011491 glass wool Substances 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012774 insulation material Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 4
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 238000004134 energy conservation Methods 0.000 description 6
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
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- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
Description
Technical Field
The invention belongs to the technical field of building wall heat insulation materials, and relates to heat insulation mortar dry powder for building a self-heat-insulation masonry.
Background
According to the national energy-saving technology development planning requirements, the energy-saving building becomes the development direction of the future building industry. The heat preservation and energy conservation of buildings is a comprehensive technical problem, and the energy conservation index of the external periphery of the building must be improved to realize the energy conservation of the building, one of the keys is to reduce the heat conductivity coefficient of the wall and greatly improve the self heat preservation performance of the masonry wall, and various novel wall materials such as concrete hollow blocks, aerated concrete blocks, light porous bricks, fly ash blocks and other wall materials with the independent heat preservation and insulation functions are widely applied along with the continuous deepening of the energy conservation of the building. However, most of the masonry mortar matched with the self-insulation wall materials at present adopts common masonry mortar to build the self-insulation energy-saving building blocks, because the common masonry mortar is generally cement mortar or polymer mortar, the density of the mortar is generally 1600-1800 kg/m3, the heat conductivity coefficient is high and is generally 0.8-1.0W/(m.k), when the building blocks are matched with the self-insulation wall for use, the heat conductivity coefficient difference between the self-insulation energy-saving building blocks and the common masonry mortar is large, so that the phenomenon of 'heat bridge' or 'cold bridge' appears in mortar joints of the building blocks, the heat insulation energy loss of the wall body caused by the phenomenon reaches about 25%, the moisture condensation appears in the mortar joints of the building and even in the whole wall surface, the overall heat insulation effect of the wall body is seriously influenced, and the building can not meet the national 65% energy. Therefore, to achieve heat insulation of energy-saving building walls, not only light heat insulation blocks but also masonry mortar having good heat insulation performance are required. Therefore, the development of the heat-insulating and energy-saving masonry mortar which can meet the mechanical performance requirements such as strength and the like, can meet the requirement of low heat conductivity coefficient and can be matched with the self-insulating masonry for use is very important.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the heat-insulating mortar dry powder for building the self-insulating masonry, which can be matched with the self-insulating wall building blocks (bricks) and has the advantages of small heat conductivity coefficient, high compressive strength, good bonding property, good workability, good water-retaining property, good heat-insulating effect, energy conservation and environmental protection.
The technical scheme adopted for realizing the purpose of the invention is as follows: the thermal insulation mortar dry material is prepared from the following raw materials, by weight, 25-55 parts of lightweight aggregate, 5-30 parts of thermal insulation material, 3-10 parts of nano reinforcing agent, 30-60 parts of cement, 1-5 parts of fiber thermal insulation material, 0.2-10 parts of binder and 0.5-10 parts of redispersible latex powder; wherein,
the lightweight aggregate is ceramic or ceramsite with the particle size of 0.5-3 mm;
the heat insulating material is closed-cell perlite, expanded vermiculite or sepiolite;
the nano reinforcing agent is lime or volcanic ash or micro silicon powder;
the cement is Portland cement with the strength grade of 42.5;
the fiber heat-insulating material adopts glass wool fiber or mineral wool;
the binder is bentonite or hydroxypropyl methylcellulose.
The light aggregate of the material adopts the shale ceramics or the ceramsite, belongs to a porous light material, and has unique excellent performances of light weight, high strength, heat insulation, heat preservation, fire prevention, moisture prevention, good durability and the like because the inside of the material has a closed pore structure, the surface of the material has a compact dense layer, and the shell of the material is extremely hard. The page pottery or ceramsite is not only aggregate, but also a heat insulation material, can improve the water retention property, plasticity and strength of the mortar, and has the characteristics of low heat conductivity coefficient, low water absorption, strong permeability, high strength, light capacity, high temperature resistance, acid and alkali resistance, strong adsorption capacity, compression resistance, wear resistance and the like. The heat insulating material is closed-cell perlite or expanded vermiculite or sepiolite, the closed-cell perlite can overcome the characteristics of large water absorption, low strength and poor fluidity of the traditional expanded perlite, the application field of the expanded perlite is extended, and the heat insulating material has the characteristics of high strength, low water absorption, high strength, good mixing property and the like, is easy to disperse and the like; the expanded vermiculite has unique structural characteristics and surface properties, is nontoxic, sterile and chemically inert, and has the characteristics of environmental protection, heat preservation, heat insulation and insulation; sepiolite is a fibrous hydrous magnesium silicate, and has the properties of adsorptivity, rheological property, catalysis, high temperature resistance, heat insulation, corrosion resistance, radiation resistance, flame retardance, thermal stability and the like. The nano reinforcing agent is lime or volcanic ash micro-silica powder, has good filling effect, can be filled in gaps of cement particles, can greatly improve the strength and durability of mortar, reduces the water absorption of lightweight aggregate, and improves the binding force between lightweight aggregate bodies. The cement is portland cement and has a strength grade of 42.5. The fiber heat-insulating material is glass wool fiber or mineral wool, the mineral wool is short for mineral wool, and the cotton-shaped short fiber prepared from silicate melt comprises slag wool, rock wool and slag wool which is called as the main raw material by using metallurgical slag or coal ash; rock such as basalt is used as a main raw material and is called rock wool, and mineral wool, rock wool and products thereof have the characteristics of light weight, durability, incombustibility, incorruptibility, and the like, and are excellent heat-insulating and sound-absorbing materials. The binder adopts bentonite or hydroxypropyl methylcellulose, and can improve the workability and the construction performance of the mortar. The redispersible latex powder has high binding capacity, unique water resistance, construction performance, heat insulation performance and the like, and after the materials are mixed with cement and water, the affinity among the raw materials of each component in the slurry can be greatly enhanced, and micropores are formed in the cement before the cement is not solidified, so that the mortar not only has stronger polymerization force and bonding strength, but also can play the roles of heat preservation and heat insulation, and can completely eliminate the cold and heat bridge phenomena of a masonry wall.
The thermal insulation mortar dry powder for building the self-insulation masonry prepared by the mixture according to the scheme is suitable for bonding the brick joints of the self-insulation wall building blocks of various buildings. The heat-insulating mortar dry powder has low heat conductivity coefficient which is below 0.16W/(m ∙ k), and can avoid the generation of cold and hot bridges at the joints of the building blocks, thereby effectively forming the self-heat-insulating effect of the masonry wall. Meanwhile, the dry powder of the thermal insulation mortar has good adhesion, good ageing resistance, the service life of the dry powder of the thermal insulation mortar can be the same as that of a building, and the dry powder of the thermal insulation mortar has the advantages of no toxicity, no pollution, no harm to human bodies, wide raw material sources, low manufacturing cost, simple and convenient construction and the like, and is an ideal wall masonry material. The heat-insulating mortar dry powder for building the self-heat-insulating masonry can effectively solve the problems of cracking, hollowing, cold bridges and condensation caused by using common mortar, and is beneficial to the self-heat-insulating wall to achieve the aim of saving energy by 65%. Compared with the prior art beneficial effect:
(1) low thermal conductivity: compared with the prior art, the heat conductivity coefficient is greatly reduced, the heat insulation effect is only 0.16W/(m.k) through detection, and the energy loss caused by building mortar joints is overcome.
(2) Low density: the detected density is 923kg/m3, which is similar to the density of the self-heat-insulation energy-saving building block, thereby avoiding the quality problems of cracking, water seepage and the like caused by different material stresses of the wall body built by other mortar.
(3) The compressive strength is high: the detection shows that the compressive strength exceeds 5.0Mpa, which can meet the requirement of the masonry.
(4) The heat-insulating mortar dry powder material has the advantages of excellent quality, low cost, easy production, convenient use, safety, environmental protection and obvious energy-saving effect, is used for building self-heat-insulating wall building blocks (bricks) and can prevent cold and heat bridges.
(5) The thermal insulation mortar dry powder is used for the leading masonry of the self-thermal insulation masonry, can obtain the effect of matching the characteristics of mortar and wall materials, and solves the problems of energy loss and cracking caused by cold bridges and condensation when the existing aerated concrete block is used as a wall body.
Detailed Description
The invention relates to a heat preservation mortar dry powder for building self-heat preservation masonry, which selects energy-saving lightweight aggregate as a main material, cement as a cementing material, and a heat insulating material, a nano reinforcing agent, a fiber heat preservation material and a small amount of binder and rubber powder for increasing workability according to the principles of energy conservation, heat preservation and cost reduction, wherein the finished product is a dry powder material formed by mixing fine particles and powder. The mixture ratio of the raw materials of each component can achieve better effect within the following mixture ratio range by weight: 25-55 parts of lightweight aggregate, 5-30 parts of heat insulating material, 3-10 parts of nano reinforcing agent, 30-60 parts of cement, 1-5 parts of fiber heat insulating material, 0.2-10 parts of binder and 0.5-10 parts of redispersible latex powder; wherein the lightweight aggregate is ceramic clay or ceramsite with the particle size of 0.5-3 mm; the heat insulating material is closed-cell perlite, expanded vermiculite or diatomite; the heat insulating material is closed-cell perlite, expanded vermiculite or sepiolite; the nano reinforcing agent is lime or volcanic ash or micro silicon powder; the cement is Portland cement with the strength grade of 42.5; the fiber heat-insulating material adopts glass wool fiber or mineral wool; the binder is bentonite or hydroxypropyl methylcellulose.
The preparation method of the heat-preservation mortar dry powder is carried out according to the following steps:
step 1: screening granular materials with the grain diameter of 0.5-3 mm from the shale ceramics or the ceramsite of the lightweight aggregate for later use;
step 2: respectively metering the screened ceramic or ceramsite particles, a nano reinforcing agent, cement, a fiber heat-insulating material, a binder, redispersible latex powder and the like according to the proportion, putting the mixture into a dry powder stirrer, and uniformly mixing the mixture by the dry powder stirrer to prepare a mixture for later use;
and step 3: and (3) taking the mixture prepared in the step (2), adding a heat-insulating material according to the proportion, continuously stirring and uniformly mixing to prepare the heat-insulating mortar dry powder for masonry, and finally bagging and packaging.
And 4, step 4: during on-site construction, the building blocks can be bonded and built only by adding water into the heat-insulating mortar dry powder and mixing the mixture into mortar paste, wherein the proportion of the heat-insulating mortar dry powder to the water is as follows: dry powder: water = 1: 2.5-3.5.
The main performance indexes of the thermal insulation mortar dry powder disclosed by the invention after being compared with the ordinary mortar are as follows:
| index item | Thermal insulation mortar dry powder | Common mortar material |
| Dry density | ≤1000kg/m3 | ≥1000 |
| Compressive strength | ≥5.0Mpa | ≥5.0 |
| Coefficient of thermal conductivity | ≤0.16W/(m·k) | ≥0.8 |
Example one
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 25 parts of lightweight aggregate, 5 parts of heat insulating material, 3 parts of nano reinforcing agent, 30 parts of cement, 1 part of fiber heat insulating material, 0.2 part of binder and 0.5 part of redispersible latex powder.
Example two
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 28 parts of lightweight aggregate, 8 parts of heat insulating material, 4 parts of nano reinforcing agent, 35 parts of cement, 1.5 parts of fiber heat insulating material, 0.6 part of binder and 1 part of redispersible latex powder.
EXAMPLE III
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 30 parts of lightweight aggregate, 10 parts of heat insulating material, 5 parts of nano reinforcing agent, 40 parts of cement, 2 parts of fiber heat insulating material, 1 part of binder and 2 parts of redispersible latex powder.
Example four
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 33 parts of lightweight aggregate, 13 parts of heat insulating material, 5.5 parts of nano reinforcing agent, 43 parts of cement, 2.5 parts of fiber heat insulating material, 2 parts of binder and 3.5 parts of redispersible latex powder.
EXAMPLE five
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 35 parts of lightweight aggregate, 15 parts of heat insulating material, 6 parts of nano reinforcing agent, 45 parts of cement, 3 parts of fiber heat insulating material, 3 parts of binder and 5 parts of redispersible latex powder.
EXAMPLE six
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 40 parts of lightweight aggregate, 18 parts of heat insulating material, 7 parts of nano reinforcing agent, 48 parts of cement, 3.5 parts of fiber heat insulating material, 4.5 parts of binder and 6 parts of redispersible latex powder.
EXAMPLE seven
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 45 parts of lightweight aggregate, 22 parts of heat insulating material, 8 parts of nano reinforcing agent, 51 parts of cement, 4 parts of fiber heat insulating material, 6 parts of binder and 7 parts of redispersible latex powder.
Example eight
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 50 parts of lightweight aggregate, 26 parts of heat insulating material, 9 parts of nano reinforcing agent, 55 parts of cement, 4.5 parts of fiber heat insulating material, 8 parts of binder and 8.5 parts of redispersible latex powder.
Example nine
The heat-preservation mortar dry powder comprises the following raw materials in parts by weight: 55 parts of lightweight aggregate, 30 parts of heat insulating material, 10 parts of nano reinforcing agent, 60 parts of cement, 5 parts of fiber heat insulating material, 10 parts of binder and 10 parts of redispersible latex powder.
Claims (10)
1. The utility model provides a self preservation temperature brickwork is built by laying bricks or stones and is used heat preservation mortar dry powder which characterized in that: the material is prepared from the following raw materials, by weight, 25-55 parts of lightweight aggregate, 5-30 parts of heat insulating materials, 3-10 parts of nano reinforcing agents, 30-60 parts of cement, 1-5 parts of fiber heat insulating materials, 0.2-10 parts of binders and 0.5-10 parts of redispersible latex powder; wherein:
the lightweight aggregate is ceramsite with the particle size of 0.5-3 mm;
the heat insulating material is closed-cell perlite, expanded vermiculite or sepiolite;
the nano reinforcing agent is lime or volcanic ash or micro silicon powder;
the cement is Portland cement with the strength grade of 42.5;
the fiber heat-insulating material adopts glass wool fiber or mineral wool;
the binder is bentonite or hydroxypropyl methylcellulose.
2. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 25 parts of lightweight aggregate, 5 parts of heat insulating material, 3 parts of nano reinforcing agent, 30 parts of cement, 1 part of fiber heat insulating material, 0.2 part of binder and 0.5 part of redispersible latex powder.
3. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 28 parts of lightweight aggregate, 8 parts of heat insulating material, 4 parts of nano reinforcing agent, 35 parts of cement, 1.5 parts of fiber heat insulating material, 0.6 part of binder and 1 part of redispersible latex powder.
4. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 30 parts of lightweight aggregate, 10 parts of heat insulating material, 5 parts of nano reinforcing agent, 40 parts of cement, 2 parts of fiber heat insulating material, 1 part of binder and 2 parts of redispersible latex powder.
5. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 33 parts of lightweight aggregate, 13 parts of heat insulating material, 5.5 parts of nano reinforcing agent, 43 parts of cement, 2.5 parts of fiber heat insulating material, 2 parts of binder and 3.5 parts of redispersible latex powder.
6. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 35 parts of lightweight aggregate, 15 parts of heat insulating material, 6 parts of nano reinforcing agent, 45 parts of cement, 3 parts of fiber heat insulating material, 3 parts of binder and 5 parts of redispersible latex powder.
7. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 40 parts of lightweight aggregate, 18 parts of heat insulating material, 7 parts of nano reinforcing agent, 48 parts of cement, 3.5 parts of fiber heat insulating material, 4.5 parts of binder and 6 parts of redispersible latex powder.
8. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 45 parts of lightweight aggregate, 22 parts of heat insulating material, 8 parts of nano reinforcing agent, 51 parts of cement, 4 parts of fiber heat insulating material, 6 parts of binder and 7 parts of redispersible latex powder.
9. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 50 parts of lightweight aggregate, 26 parts of heat insulating material, 9 parts of nano reinforcing agent, 55 parts of cement, 4.5 parts of fiber heat insulating material, 8 parts of binder and 8.5 parts of redispersible latex powder.
10. The heat-insulating mortar dry powder for self-insulation masonry according to claim 1, characterized in that: the heat-insulating mortar dry powder comprises the following raw materials in parts by weight: 55 parts of lightweight aggregate, 30 parts of heat insulating material, 10 parts of nano reinforcing agent, 60 parts of cement, 5 parts of fiber heat insulating material, 10 parts of binder and 10 parts of redispersible latex powder.
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| CN105036620A (en) * | 2015-07-03 | 2015-11-11 | 枞阳县天筑新型建筑材料有限公司 | High efficient thermal insulation mortar added with glass wool and preparation method thereof |
| CN105776972A (en) * | 2016-03-22 | 2016-07-20 | 苏州百联建筑工程有限公司 | Special repair mortar for subway tunnel segments |
| CN106083014A (en) * | 2016-06-12 | 2016-11-09 | 浙江孚瓯科技有限公司 | Preparation method of foaming building stones roof heat insulation brick and products thereof |
| CN111807761A (en) * | 2019-04-12 | 2020-10-23 | 耀星(廊坊)建筑材料有限公司 | QHJ light active energy-saving masonry material |
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| KR100483702B1 (en) * | 2002-10-29 | 2005-04-19 | 이대균 | The method for manufacturing of heatproof and light weight for materials |
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| CN104003680A (en) | 2014-08-27 |
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