CN102797317B - Automatic heat preserving wall building block - Google Patents
Automatic heat preserving wall building block Download PDFInfo
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- CN102797317B CN102797317B CN201210286090.6A CN201210286090A CN102797317B CN 102797317 B CN102797317 B CN 102797317B CN 201210286090 A CN201210286090 A CN 201210286090A CN 102797317 B CN102797317 B CN 102797317B
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Abstract
The invention discloses an automatic heat preserving wall building block and a preparation method, the automatic heat preserving wall building block comprises a first cement slurry layer, a fiber mesh fabric is paved on the first cement slurry layer, a second cement slurry layer is poured on the fiber mesh fabric, a block framework is provided on the second cement slurry layer, and an ultra light foamed cement is filled in the block framework. The building block has the characteristics of small volume weight, high compressive strength and low equivalent heat conductivity. According to the invention, the wall building block is used without internal and external insulation of the walls, and the 65% of requirements of building energy conservation can be reached.
Description
Technical field
The present invention relates to novel wall material field, particularly a kind of Self-insulating wall building block for building energy conservation and preparation method thereof.
Background technology
Energy-saving and cost-reducing is a current global topic, the problem that Ye Shi China extremely pays close attention in economic development.Last year, State Council is in " the comprehensive programme of work of " 12 " energy-saving and emission-reduction ", make the regulation of " strict management of building's energy saving; widely popularize energy and land saving environment-friendly type building; strengthening new building performs the standard management of energy consumption limit; implement the test and appraisal of building efficiency special project, must not handle substandard building and to go into operation and completing and checking is put on record formality, inaccurate sale uses " clearly.This big power consumer of builing industry has become the key industry that country implements energy-saving and cost-reducing policy.
At present, China's building energy conservation many employings External Thermal Insulation Technology for External and outer wall self heat-preserving technology.But external wall heat insulation system exists a lot of problem, be mainly manifested in the aspects such as outer wall cracking, shock resistance are poor, poor durability.And outer wall self heat-preserving technology is combined together by the heat-insulation and heat-preservation of building body and space enclosing structure, compared with external wall heat insulation system, have cheap, maintenance cost is low, external decoration is diversified, with building body with advantages such as life-spans.
According to the difference of the selection of material, skin self-thermal insulation material is divided into homogenous material and composite material.Homogenous material, as building-block, air-entrained concrete building block etc., coefficient of thermal conductivity is large, can not meet the requirement of building energy conservation 65%.And existing composite self-insulation material exists mechanical property mostly and thermal property contradicts problem, volume stability is poor, has the very few of higher-strength and better energy-saving effect concurrently.
Summary of the invention
The object of the invention is to overcome the deficiencies such as existing heat insulation building block intensity is low, of poor quality, providing that a kind of intensity is high, coefficient of thermal conductivity is low, thermal and insulating performance is good, the Self-insulating wall building block of easy construction and preparation method thereof.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of Self-insulating wall building block, comprise the first cement slurry layer, first cement slurry layer is equipped with fibrous mesh cloth, fibrous mesh cloth has been built the second cement slurry layer, second cement slurry layer is provided with building block skeleton, in building block skeleton, is filled with ultra-light foamed cement.
As improvement of the present invention, described first cement slurry layer and the second cement slurry layer are all made primarily of the raw material of following weight ratio:
42.5 grades of Portland cements: flyash: polypropylene fibre: water reducing agent: water=1:(0.1 ~ 0.3): (0.005 ~ 0.01): (0.05 ~ 0.1): (0.35 ~ 0.50).Object at utmost reduces the cracking of slurry under being the prerequisite of guarantee cement thick liquid flowability.
Wherein, described water reducing agent is high performance water reducing agent of polyocarboxy acid.
Wherein, described building block skeleton is light aggregate concrete hollow block, and unit weight is less than 500kg/m
3.
Improve as of the present invention another, described ultra-light foamed cement is made primarily of the raw material of following weight ratio:
42.5 grades of Portland cements: flyash: discarded granular polystyrene: blowing agent: cellulose ether: mineral fibers: early strength admixture: water=(140 ~ 160): (25 ~ 45): (5 ~ 9): (1 ~ 2): (0.5 ~ 1): (0.5 ~ 1): (0.15 ~ 0.3): (120 ~ 140).Object is to ensure that foam cement has less unit weight and higher intensity.
Wherein, the particle diameter of described discarded granular polystyrene is 3 ~ 5mm.
Wherein, described blowing agent is neopelex.
Wherein, described mineral fibers is vinal, its average length 3.5 ~ 6.0mm, average fibre diameter 5.0 ~ 8.0 μm.
Wherein, described early strength admixture is that triethanolamine and sodium sulphate are composited with 2:1.
The preparation method of above-mentioned composite thermal self-insulation building block, comprises the steps:
(1) on moulding form, the first cement slurry layer is built;
(2) in the first cement slurry layer, fibrous mesh cloth is laid;
(3) on fibrous mesh cloth, the second cement slurry layer is built again;
(4) in the second cement slurry layer, building block skeleton is built;
(5) in building block skeleton, fill ultra-light foamed cement and strike off along mould, at least maintenance 7 days, namely obtains described composite thermal self-insulation building block.
Beneficial effect: compared with prior art, advantage of the present invention is intensity high (>=7.5MPa), little (≤600 kg/m of unit weight
3), equivalent heat conductivity low (≤0.08W/ (mk)), is used alone the requirement that can realize energy-conservation 65%.
Detailed description of the invention
Below by specific embodiment, the present invention is further described; it should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention; can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Embodiment 1: a kind of Self-insulating wall building block, comprise the first cement slurry layer, first cement slurry layer is equipped with fibrous mesh cloth, fibrous mesh cloth has been built the second cement slurry layer, second cement slurry layer is provided with building block skeleton, in building block skeleton, is filled with ultra-light foamed cement.
Above-mentioned first cement slurry layer and the second cement slurry layer are all made primarily of the raw material of following weight ratio:
42.5 grades of Portland cements: flyash: polypropylene fibre: water reducing agent: water=1:0.2:0.007:0.08:0.4.
Wherein, described water reducing agent is high performance water reducing agent of polyocarboxy acid, commercially available prod;
Building block skeleton is light aggregate concrete hollow block, and unit weight is less than 500kg/m
3; Above-mentioned ultra-light foamed cement is made primarily of the raw material of following weight ratio:
42.5 grades of Portland cements: flyash: discarded granular polystyrene: blowing agent: cellulose ether: mineral fibers: early strength admixture: water=150:35:7:2:0.7:0.7:0.2:130.
Wherein, the particle diameter of discarded granular polystyrene is 3 ~ 5mm; Blowing agent is neopelex; Mineral fibers is vinal, its average length 3.5 ~ 6.0mm, average fibre diameter 5.0 ~ 8.0 μm;
When preparing above-mentioned Self-insulating wall building block, first deployed, for subsequent use according to the pulp furnish that the first cement slurry layer, the second cement slurry layer and ultra-light foamed cement are used; Then on moulding form, the first cement slurry layer is built; Fibrous mesh cloth is laid again in the first cement slurry layer; And then the second cement slurry layer is built again on fibrous mesh cloth; Second cement slurry layer is built building block skeleton; Finally in building block skeleton, fill ultra-light foamed cement and strike off along mould, at least maintenance 7 days, namely obtains described Self-insulating wall building block.
Embodiment 2: substantially the same manner as Example 1, difference is the pulp furnish of the first cement slurry layer and the second cement slurry layer, and the pulp furnish of ultra-light foamed cement insulation layer, specific as follows:
The pulp furnish of the first cement slurry layer is: 42.5 grades of Portland cements: flyash: polypropylene fibre: water reducing agent: water=1:0.1:0.005:0.05:0.35.
The pulp furnish of the second cement slurry layer is: 42.5 grades of Portland cements: flyash: polypropylene fibre: water reducing agent: water=1:0.1:0.006:0.06:0.4.
Ultra-light foamed cement insulation layer is made primarily of the raw material of following weight ratio: 42.5 grades of Portland cements: flyash: discarded granular polystyrene: blowing agent: cellulose ether: mineral fibers: early strength admixture: water=140:25:5:1:0.5:0.5:0.15:120.
Embodiment 3: substantially the same manner as Example 1, difference is the pulp furnish of the first cement slurry layer and the second cement slurry layer, specific as follows:
42.5 grades of Portland cements: flyash: polypropylene fibre: water reducing agent: water=1:0.3:0.01:0.1:0.50.
Embodiment 4: substantially the same manner as Example 1, difference is the pulp furnish of ultra-light foamed cement, is specially:
42.5 grades of Portland cements: flyash: discarded granular polystyrene: blowing agent: cellulose ether: mineral fibers: early strength admixture: water=160:45:9:2:1:1:0.3:140.
Below by product obtained for various embodiments of the present invention and existing building block intensity, unit weight, equivalent heat conductivity and be used alone energy-conservation in contrast, data are as follows:
| Standard-required | Existing building block | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Intensity (MPa) | ≥5.0 | 6.0 below | 7.52 | 7.60 | 7.53 | 7.71 |
| Unit weight (kg/m 3） | ≤700 | More than 600 | 513 | 541 | 523 | 557 |
| Equivalent heat conductivity (W/ (mk)) | ≤0.18 | More than 0.15 | 0.071 | 0.076 | 0.073 | 0.078 |
| Be used alone energy-conservation | 50% | 50% | 65% | 65% | 65% | 65% |
Conclusion: Self-insulating wall building block of the present invention has the features such as intensity is high, unit weight is little, equivalent heat conductivity is low, can meet the requirement of building energy conservation 65%.
Claims (7)
1. a Self-insulating wall building block, it is characterized in that, comprise the first cement slurry layer, first cement slurry layer is equipped with fibrous mesh cloth, fibrous mesh cloth has been built the second cement slurry layer, second cement slurry layer is provided with building block skeleton, in building block skeleton, is filled with ultra-light foamed cement;
Described first cement slurry layer and the second cement slurry layer are all made primarily of the raw material of following weight ratio:
42.5 grades of Portland cements: flyash: polypropylene fibre: water reducing agent: water=1:(0.1 ~ 0.3): (0.005 ~ 0.01): (0.05 ~ 0.1): (0.35 ~ 0.50);
Described ultra-light foamed cement is made primarily of the raw material of following weight ratio:
42.5 grades of Portland cements: flyash: discarded granular polystyrene: blowing agent: cellulose ether: mineral fibers: early strength admixture: water=(140 ~ 160): (25 ~ 45): (5 ~ 9): (1 ~ 2): (0.5 ~ 1): (0.5 ~ 1): (0.15 ~ 0.3): (120 ~ 140).
2. Self-insulating wall building block according to claim 1, is characterized in that: described water reducing agent is high performance water reducing agent of polyocarboxy acid.
3. Self-insulating wall building block according to claim 1, is characterized in that: described building block skeleton is light aggregate concrete hollow block, and unit weight is less than 500kg/m
3.
4. Self-insulating wall building block according to claim 1, is characterized in that: the particle diameter of described discarded granular polystyrene is 3 ~ 5mm.
5. Self-insulating wall building block according to claim 1, is characterized in that: described blowing agent is neopelex.
6. Self-insulating wall building block according to claim 1, is characterized in that: described mineral fibers is vinal, its average length 3.5 ~ 6.0mm, average fibre diameter 5.0 ~ 8.0 μm.
7. Self-insulating wall building block according to claim 1, is characterized in that: described early strength admixture is that triethanolamine and sodium sulphate are composited with 2:1.
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| CN201210286090.6A CN102797317B (en) | 2012-08-13 | 2012-08-13 | Automatic heat preserving wall building block |
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| CN201210286090.6A CN102797317B (en) | 2012-08-13 | 2012-08-13 | Automatic heat preserving wall building block |
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| CN102797317A CN102797317A (en) | 2012-11-28 |
| CN102797317B true CN102797317B (en) | 2015-06-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402346B (en) * | 2014-10-13 | 2016-03-16 | 合肥庭索环保材料有限公司 | Energy conserving and environment protective building blocks and preparation method thereof |
| CN108793898A (en) * | 2018-09-11 | 2018-11-13 | 长治市潞鑫源新型墙体建材有限公司 | A kind of glue powder polyphenyl particle composite thermal self-insulation building block and preparation method thereof |
| CN110451861B (en) * | 2019-08-31 | 2022-02-08 | 四川圣吉鸿博建筑材料有限公司 | Preparation method of light foam concrete |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002438A (en) * | 2004-06-17 | 2006-01-05 | Yoshinobu Hayashi | Execution method of building made of heat insulation blocks and heat insulation block structure |
| CN101168984A (en) * | 2007-11-28 | 2008-04-30 | 李凡 | High-strength self thermal insulation wall building block |
| CN101403245A (en) * | 2008-10-17 | 2009-04-08 | 王功全 | Coal ash light insulated wall board and method for producing the same |
| CN101525923A (en) * | 2009-04-15 | 2009-09-09 | 贵阳白云耀筑新型建筑材料厂 | Light aggregate compound heat preserving building blocks and manufacturing method thereof |
| CN202248493U (en) * | 2011-09-16 | 2012-05-30 | 龙江县华光新型墙材研究所 | Light heat preservation building block |
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- 2012-08-13 CN CN201210286090.6A patent/CN102797317B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002438A (en) * | 2004-06-17 | 2006-01-05 | Yoshinobu Hayashi | Execution method of building made of heat insulation blocks and heat insulation block structure |
| CN101168984A (en) * | 2007-11-28 | 2008-04-30 | 李凡 | High-strength self thermal insulation wall building block |
| CN101403245A (en) * | 2008-10-17 | 2009-04-08 | 王功全 | Coal ash light insulated wall board and method for producing the same |
| CN101525923A (en) * | 2009-04-15 | 2009-09-09 | 贵阳白云耀筑新型建筑材料厂 | Light aggregate compound heat preserving building blocks and manufacturing method thereof |
| CN202248493U (en) * | 2011-09-16 | 2012-05-30 | 龙江县华光新型墙材研究所 | Light heat preservation building block |
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Address after: 212405 Zhenjiang city of Jiangsu province Jurong city sequencemountain Lake Road No. 1 Jiangsu South porcelain insulator Limited by Share Ltd Applicant after: JIANGSU NANCI INSULATORS CO., LTD. Address before: 212405, Jiangsu, Zhenjiang province Jurong town side Nanjing Expressway Crossing 50 meters -2, Jiangsu South porcelain insulator Co., Ltd. Applicant before: Jiangsu Nanci Insulator Co., Ltd. |
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