CN101265737B - Steam pressurized concrete composite heat insulation building blocks and its production process - Google Patents
Steam pressurized concrete composite heat insulation building blocks and its production process Download PDFInfo
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- CN101265737B CN101265737B CN2008100180352A CN200810018035A CN101265737B CN 101265737 B CN101265737 B CN 101265737B CN 2008100180352 A CN2008100180352 A CN 2008100180352A CN 200810018035 A CN200810018035 A CN 200810018035A CN 101265737 B CN101265737 B CN 101265737B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The present invention discloses an autoclaved aerated concrete composite heat preservation building block. The building block external wall and the building block rib are made of the autoclaved aerated concrete, the hole formed by the building block external wall and the building block rib is filled with heat preservation and insulation fillers for a second time. The building block adopts the autoclaved aerated concrete as the raw material and the preset mould core structure. The mould core is extracted after the slurry is poured so as to form a hollow structure in the building block body in the molding process, the void ratio of the hollow structure reaches 30%-70%. The light heat preservation and insulation material is filled for the second time after autoclaved curing the hollow structure block body, which reduces the production volume weight, improves the heat preservation and insulation performance of the material and facilitates the construction. Based on the application requirement, the absolute dry volume weight is adjustable in a range of 300-600kg/m<3>, the heat transfer coefficient amounts to less than 0.5W/m<2>K, the method has a remarkable effect of energy saving, the single wall body material reaches 65% of the national building energy saving requirement, the energy-saving effect is obvious. The building block is widely applicable to industrial and civil building wall bodies.
Description
Technical field the invention belongs to the construction material technical field, is specifically related to a kind of energy-saving heat preservation building block and production method thereof.
Background technology shows according to data, about 30% of present China building energy consumption account country energy consumption, and building energy conservation becomes an important process of China's energy-saving and emission-reduction." public building energy-saving design standard " regulation of implementing on 07 01st, 2005, the city new building all should strictly be carried out the second step building energy conservation of building energy saving rate 50% and force standard code, metropolis with good conditionsi and severe cold, cold district can take the lead in carrying out according to the 3rd step of fractional energy savings 65% energy conservation standard, and actively promoting novel wall material is the important step that advances building energy conservation.
Air-entrained concrete building block is better than other traditional construction material as a kind of novel wall material on thermal and insulating performance.At present, domestic air-entrained concrete building block is solid article, and in Application in Building, the single body of wall coefficient of thermal conductivity of stock size is generally 0.18～0.22W/m.K, and insulation, effect of heat insulation is still not ideal enough, can not reach national energy conservation criteria fully.
Existing solid air-entrained concrete building block wants to satisfy national energy conservation standard, and the one, increase block thickness, certainly will cause cost to increase like this, reduce the building usable floor area; The 2nd, cause difficulty increase in the practice of construction, cost raising, and be easy to generate cracking between composite material and the body of wall at the compound again one deck heat preserving and insulating material in aerated concrete wall outside, poor durability influences result of use; The 3rd, reduce goods unit weight, reduce heat transfer efficiency, but because goods unit weight reduces, its intensity is relatively poor, the scope of application is restricted, and generally can only be used for thermal insulation usefulness such as roofing, and is higher to raw material and technological requirement simultaneously, domestic general enterprise is difficult to reach technological requirement, and production application is subjected to certain limitation.
Domestic other composite heat insulation blocks of now having developed, main goods have: bridge cutoff type composite thermal self-insulation building block, notch cuttype concrete composite heat insulation building blocks, multi-functional composite heat insulation block etc.Adopt the ordinary concrete material, goods unit weight height is taked the natural curing mode because of it again, and production is long curing period, and dry shrinkage ratio is big, and poor durability influences the body of wall overall performance.
Summary of the invention the object of the present invention is to provide and a kind ofly can strengthen the air-entrained concrete building block heat preservation and insulation, make single body of wall reach the national standard of fractional energy savings 65%, the steam pressurized concrete composite heat insulation building blocks that reduces goods unit weight simultaneously and can under common process and raw material condition, produce.
For achieving the above object, the technical scheme taked of the present invention is:
A kind of steam pressurized concrete composite heat insulation building blocks, form by building block outer wall, building block rib and thermal insulation filler, described building block outer wall and building block rib adopt the steam-pressing aero-concrete material to make, secondary is filled the thermal insulation filler in the hole that building block outer wall and building block rib constitute, and its concrete production stage is as follows:
1. by weight percentage, component ratio according to lime 20～25%, cement 5～15%, flyash 60～70%, gypsum 2～5% is got the raw materials ready, add water by 60～65% of total dry material weight, stir 10～15 minutes after fully mix, the aluminium cream that adds total dry material 7～8/0,000 again is as foaming agent, stirred 35～42 ℃ of slurry temperatures 30～60 seconds;
2. default core rod in framed, the slip casting that step is obtained in is 1. got angry and is rested 1.5～2 hours in default core;
3. the demoulding, loose core, cut according to required size;
4. still kettle is put in the building block of well cutting, under the condition of 184～204 ℃ of temperature, pressure 1.0～1.2MPa, constant voltage maintenance 4～6 hours;
5. from still kettle, take out building block, naturally cool to room temperature;
6. thermal insulation filler secondary is filled in the hole of building block outer wall and building block rib formation, obtains steam pressurized concrete composite heat insulation building blocks, the qualified warehouse-in of product inspection.
Above-mentioned steam pressurized concrete composite heat insulation building blocks provided by the invention, utilize the gas concrete material to be raw material, adopt default mold insert structure, extract core rod after slip casting is finished, make the building block base substrate in forming process, form hollow structure, the void content of hollow structure can reach 30%～70%, finishes the base substrate of hollow structure, carry out steam press maintenance again after, secondary light filling heat preserving and insulating material, reach and reduce goods unit weight, improve the thermal and insulating performance of material, and easy construction.Can be according to instructions for use over dry unit weight at 300～600kg/m
3Adjust in the scope, heat-insulating property also can be adjusted by increase and decrease building block inner thermal insulating layer thickness, and thermal transmittance can reach 0.5W/m
2.K below, make reach the building energy conservation requirement of country 65% single one step of materials for wall, energy-saving effect is remarkable, and more traditional gas concrete entity building block energy-saving effect improves more than 30%, can be widely used in industry and civilian construction body of wall.
Major technique innovative point of the present invention is as follows:
(1) the material difference of building block outer wall and rib: adopt the gas concrete material, unit weight is lower, and insulation is better, reduces cold bridge.
(2) the material maintenance method difference of building block outer wall and rib: adopt the steam press maintenance mode, stable material quality reduces the drying of building block and shrinks.
(3) building block processing technology difference: adopt default core rod, moulding by casting, the processing method of secondary light filling heat preserving and insulating material.
(4) over dry unit weight is low in based article: can be at 300～600kg/m
3Adjust in the scope, thermal transmittance can reach 0.5W/m
2.K below.
This technology is looked into newly through science and technology, the domestic same document report that yet there are no of the production technology of steam pressurized concrete composite heat insulation building blocks.
Through the check of constructional materials product quality supervision and inspection station, Gansu Province, the conclusion that draws is: " according to JGJ 132-2001 " heating Residential Buildings Energy test stone ", the masonry thermal resistance of steam pressurized concrete composite heat insulation building blocks is 2.17m
2.K/W (the conversion thermal transmittance is 0.46W/m
2.K) "." through check, building block accord with Q/ZYQTJC01-2007 " steam pressurized concrete composite heat insulation building blocks " standard.Radionuclide is limited the quantity of and is met requirement among the GB 6566-2001 " the radioactive material nucleic is limited the quantity of ", and its production and marketing and the scope of application are unrestricted.”
Concrete Interventions Requested and data see the following form:
Description of drawings Fig. 1 is two hole block structure schematic diagrames
Fig. 2 is three hole block structure schematic diagrames
Fig. 3 is four hole block structure schematic diagrames
The specific embodiment as shown in Figure 1 to Figure 3, steam pressurized concrete composite heat insulation building blocks provided by the invention, form by building block outer wall 1, building block rib 2 and thermal insulation filler 3, described building block outer wall 1 and building block rib 2 adopt the steam-pressing aero-concrete material to make, secondary is filled thermal insulation filler 3 in the hole that building block outer wall 1 and building block rib 2 constitute, and thermal insulation filler 3 can be selected polyphenyl material light heat insulation materials such as (plates) for use.The profile of these goods building block is right angle hexahedron (cuboid), can make 2～4 hole building blocks, and the master ga(u)ge lattice are of a size of 600mm * 300mm * 200mm, 600mm * 300mm * 250mm.
The production method of this steam pressurized concrete composite heat insulation building blocks may further comprise the steps:
1. by weight percentage, component ratio by lime 25%, cement 10%, flyash 62%, gypsum 3% is got the raw materials ready, add water by 62% of total dry material weight, stir 10 minutes after fully mix, the aluminium cream that adds total dry material 7/0,000 again is as foaming agent, continue to stir 37 ℃ of slurry temperatures 40 seconds;
2. default core rod in framed, the slip that step is obtained in 1. is cast in the default core, gets angry and rests 2 hours;
3. the demoulding, loose core, cut according to 600mm * 300mm * 200mm or 600mm * 300mm * 250mm size;
4. still kettle is put in the building block of well cutting, under the condition of 190 ℃ of temperature, pressure 1.2MPa, constant voltage maintenance 5 hours;
5. from still kettle, take out building block, naturally cool to room temperature;
6. polyphenyl material light heat insulation material secondaries such as (plates) is filled in the hole of building block outer wall and building block rib formation, obtains steam pressurized concrete composite heat insulation building blocks, quality inspection requires: over dry unit weight 300～600kg/m
3, compressive strength 1.5～3.5, scale error≤± 3.0mm, the qualified warehouse-in of goods.
Claims (1)
1. steam pressurized concrete composite heat insulation building blocks, form by building block outer wall, building block rib and thermal insulation filler, it is characterized in that: described building block outer wall and building block rib adopt the steam-pressing aero-concrete material to make, secondary is filled the thermal insulation filler in the hole that building block outer wall and building block rib constitute, and its concrete production stage is as follows:
1. by weight percentage, component ratio according to lime 20～25%, cement 5～15%, flyash 60～70%, gypsum 2～5% is got the raw materials ready, add water by 60～65% of total dry material weight, stir 10～15 minutes after fully mix, the aluminium cream that adds total dry material 7～8/0,000 again is as foaming agent, stirred 35～42 ℃ of slurry temperatures 30～60 seconds;
2. default core rod in framed, the slip that step is obtained in 1. is cast in the default core, gets angry and rests 1.5～2 hours;
3. the demoulding, loose core, cut according to required size;
4. still kettle is put in the building block of well cutting, under the condition of 184～204 ℃ of temperature, pressure 1.0～1.2MPa, constant voltage maintenance 4～6 hours;
5. from still kettle, take out building block, naturally cool to room temperature;
6. thermal insulation filler secondary is filled in the hole of building block outer wall and building block rib formation, obtains steam pressurized concrete composite heat insulation building blocks, the qualified warehouse-in of product inspection.
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| CN2008100180352A CN101265737B (en) | 2008-04-25 | 2008-04-25 | Steam pressurized concrete composite heat insulation building blocks and its production process |
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| CN101265737B true CN101265737B (en) | 2011-09-07 |
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| CN111730725A (en) * | 2020-07-01 | 2020-10-02 | 孙明生 | Gypsum block and forming method and device thereof |
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| CN102505794B (en) * | 2011-11-29 | 2015-07-15 | 徐杰 | Heat-preservation building block |
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| CN103726606B (en) * | 2014-01-17 | 2016-04-20 | 高唐县成宇机械制造有限公司 | The composite aerated brick of a kind of insulation and forming method thereof and device |
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| CN107175749A (en) * | 2017-05-31 | 2017-09-19 | 山东省建设发展研究院 | A kind of steam-pressing aero-concrete composite thermal self-insulation building block and preparation method thereof |
| CN107905434A (en) * | 2017-11-29 | 2018-04-13 | 浙江大东吴集团建设新材料有限公司 | A kind of self-heat conserving figuline building blocks |
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| CN111809788A (en) * | 2020-07-20 | 2020-10-23 | 三亚明亮环保科技有限公司 | Autoclaved aerated concrete block and manufacturing method thereof |
| CN111958900B (en) * | 2020-08-15 | 2022-11-18 | 江龙 | Preparation mold and preparation method of building prefabricated composite building block |
| CN112523249A (en) * | 2020-11-27 | 2021-03-19 | 西京学院 | Foundation structure and hydraulic engineering building block |
| CN112809882B (en) * | 2020-12-31 | 2022-04-12 | 联海装配式建材有限公司 | Method for forming and manufacturing light heat-preservation autoclaved aerated concrete block |
| CN114541570A (en) * | 2022-03-04 | 2022-05-27 | 中建八局第二建设有限公司 | Organ type outer vertical surface structure and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1851192A (en) * | 2006-04-28 | 2006-10-25 | 姚建国 | Light aggregate concrete sandwich thermal insulated block, and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1851192A (en) * | 2006-04-28 | 2006-10-25 | 姚建国 | Light aggregate concrete sandwich thermal insulated block, and its production method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730725A (en) * | 2020-07-01 | 2020-10-02 | 孙明生 | Gypsum block and forming method and device thereof |
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