CN101886445A - Complex self-thermal insulation wall building block - Google Patents
Complex self-thermal insulation wall building block Download PDFInfo
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- CN101886445A CN101886445A CN 201010227768 CN201010227768A CN101886445A CN 101886445 A CN101886445 A CN 101886445A CN 201010227768 CN201010227768 CN 201010227768 CN 201010227768 A CN201010227768 A CN 201010227768A CN 101886445 A CN101886445 A CN 101886445A
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- building block
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- vestibule
- thermal insulation
- groove
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- 238000009413 insulation Methods 0.000 title claims abstract description 145
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 22
- 239000011810 insulating material Substances 0.000 claims description 21
- 239000004567 concrete Substances 0.000 claims description 18
- 239000004793 Polystyrene Substances 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000011381 foam concrete Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 description 11
- 238000009414 blockwork Methods 0.000 description 8
- 238000004134 energy conservation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 239000010451 perlite Substances 0.000 description 3
- 235000019362 perlite Nutrition 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000010455 vermiculite Substances 0.000 description 3
- 235000019354 vermiculite Nutrition 0.000 description 3
- 229910052902 vermiculite Inorganic materials 0.000 description 3
- 238000004017 vitrification Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses a complex self-thermal insulation wall building block belonging to the field of new wall materials. The complex self-thermal insulation wall building block comprises a building block body (1) and a thermal insulation material. The complex self-thermal insulation wall building block is characterized in that the building block body (1) is provided with at least one thermal insulation hole cavity (2) running through the length direction of the building block and at least one thermal insulation separation hole cavity (3) running through the length direction of the building block; the thermal insulation hole cavity (2) and the thermal insulation separation hole cavity (3) are arranged along the width direction of the building block; the hole cavities are respectively filled with the thermal insulation materials; planed matchboards along the length direction are respectively arranged at both ends of the top of the building block body (1), and support vertical rib bottoms (14) are respectively arranged at both ends of the bottom of the building block body (1); and thermal resistant belts are arranged at the vertical building joint surface. The invention has reasonable structure design, the building blocks can be naturally aligned when building the wall, the building joint between layers has no rain seepage, the horizontal and vertical building joints have no through heat channels, the building construction is convenient, and no assistant thermal insulation treatment is needed on the building block wall.
Description
Technical field
The present invention relates to the novel wall material field, particularly a kind of complex self-thermal insulation wall building block that is used for the building heat preservation heat insulation wall.
Background technology
Along with deepening continuously of China's materials for wall innovation and building energy conservation work, new wall changes target and design standard for energy efficiency of buildings requires also to improve thereupon, develop into energy-conservation 50% by original energy-conservation 30%, to such an extent as to till now energy-conservation 65% energy-conservation 75% again, common concrete hollow block and insulation blocks can't satisfy the designing requirement of this energy conservation standard.This just must assist insulation to handle to blockwork, commonly used have External Thermal Insulation Technology for External such as adhesive type polyphenyl plate thin plastering outer heat preservation system, EPS plate or EPS steel wire net rack plate cast-in-place concrete exterior wall outer heat preservation system, but in recent years the construction work hollowing that brings of External Thermal Insulation Technology for External, ftracture, come off security-hidden trouble and 25 years ordinary lifes after the phase problems such as repair and replacement of system become a great problem that needs to be resolved hurrily.Building energy conservation and structure-integrated technology become the new developing direction of building energy conservation, and this has brought good development opportunity for undoubtedly the masonry self-heat conserving structural system that belongs to the structure self-heat-insulation technology.And heat-insulating wall block commonly used at present mainly contains following problem: the one, and when building by laying bricks or stones, to smear blockwork mortar in end face, the side of every building block, a large amount of masonry mortar materials have been consumed, increased the building costs cost, and the levels building block is difficult for alignment when building by laying bricks or stones, has reduced efficiency of construction; The 2nd, the bottom of insulation blocks and top are the plane, and the puzzle joint of the upper and lower layer of the body of wall that is built into blockhouse easily permeates rainwater and enters body of wall, causes problems such as wall crazing, seepage; The 3rd, the vertical puzzle joint of blockwork place easily produces heat bridge, causes the thermal loss of body of wall.
Summary of the invention
The object of the present invention is to provide a kind of blockwork need not do auxiliary insulation and handle, building block can be alignd naturally between levels, and the interlayer puzzle joint do not have rain penetration, and level and vertical puzzle joint do not have the self-thermal insulation wall building block for building that connects heat bridge.
The present invention is achieved by the following technical solution: a kind of complex self-thermal insulation wall building block, constitute by building block body and heat insulating material, described building block body has at least one and intercepts vestibule along insulation vestibule and at least one insulation along the perforation of building block length direction that the building block length direction connects, insulation vestibule and insulation intercept vestibule and arrange along the building block width, be filled with described heat insulating material in its vestibule respectively, two ends, building block body top are respectively arranged with the tongue and groove along its length direction, its two ends, bottom are respectively arranged with supports perpendicular rib bottom, is provided with tropical resistance zone at vertical puzzle joint face.
When utilizing masonry panel of the present invention, upper strata building block two is supported perpendicular rib bottom and is dropped on lower floor's building block two tongue and grooves, width adapts, needn't move building block, can realize that the upper strata aligns naturally with the lower floor building block, accelerated the blockwork speed of application, upper strata building block simultaneously two is supported between perpendicular rib bottom and lower floor's building block two tongue and grooves and is formed interlock, and rainwater can't infiltrate the body of wall inboard from horizontal puzzle joint.The tropical resistance zone that vertical puzzle joint face place is provided with can effectively intercept the heat bridge that vertical puzzle joint forms, and reduces vertical puzzle joint heat transfer loss.Simultaneously, the heat insulating material of filling in the building block body has improved the building-block thermal and insulating performance, by self realizing existing design standard for energy efficiency of buildings requirement, need not to do auxiliary insulation again and handles.
It can be concrete hollow block or sintered hollow building block to building block body described in the present invention as skeleton.
The quantity of the insulation vestibule described in the present invention can be for one or more, and when described insulation vestibule had at least two, described insulation intercepted vestibule and can be arranged between the insulation vestibule, promptly was incubated vestibule and was positioned at the both sides that insulation intercepts vestibule.
When insulation intercepts vestibule when being arranged between the insulation vestibule, described insulation vestibule by the top strengthen cross rib, bottom strengthen cross rib, support perpendicular rib and separate that perpendicular rib surrounds or by the top strengthen cross rib, the bottom is strengthened cross rib and separates perpendicular rib surrounding.
Insulation of the present invention intercepts the side that vestibule also can be arranged on the insulation vestibule.
In order to intercept the heat bridge of building block body top and bottom, the present invention has at least a place to be provided with the groove that connects along its length direction in the top and the bottom of building block body, and described groove can intercept heat bridge or fill the insulation barrier material in order to intercept heat bridge in groove.
In order effectively to intercept the heat bridge that vertical puzzle joint forms, tropical resistance zone of the present invention can be the tropical resistance zone that is provided with separately, but consider the simple and reliability of structure design, the heat insulating material that the present invention fills in insulation intercepts vestibule is the insulation barrier material, also be filled with the insulation barrier material in described groove, described tropical resistance zone is stretched out along the building block length direction by the insulation barrier material and forms.
Among the present invention, when insulation obstruct vestibule was arranged between the insulation vestibule, the height h of described tongue and groove was less than or equal to the height H that supports perpendicular rib bottom, and the width b of tongue and groove is more than or equal to the width B of the perpendicular rib of support bottom; When insulation obstruct vestibule was arranged at a side of insulation vestibule, the height h of described tongue and groove was less than or equal to the height H that supports perpendicular rib bottom, the width b of the tongue and groove of close insulation vestibule
1More than or equal to the width B that supports perpendicular rib bottom, intercept the width b of the tongue and groove of vestibule near insulation
2Equal to support the width B of perpendicular rib bottom and the width b ' sum of insulation obstruct vestibule.Tongue and groove forms the air chamber that connects along its length in the time of with the size design that supports perpendicular rib bottom blockwork being built by laying bricks or stones as required, can effectively intercept the heat bridge that bed joint forms, and reduces the loss of bed joint heat transfer.
Heat insulating material among the present invention and insulation barrier material can be molded polystyrene foamed plastics or extrusion molding polystyrene polyfoam or polyurathamc or foam concrete or gas concrete or light weight aggregate concrete or rock wool or granular polystyrene mortar or expanded perlite mortar or expanded vermiculite mortar or vitrification micropearl morttar; wherein; the heat insulating material preferred foams concrete of filling in the insulation vestibule, insulation intercepts the preferred molded polystyrene foamed plastics of heat insulating material of filling in the vestibule.
Building block body among the present invention is ordinary concrete hollow block or sintered hollow building block, it is in light weight, the intensity height, insulation vestibule and insulation intercept the inner light heat insulation material of filling of vestibule, improved the building-block thermal and insulating performance,, need not to do again auxiliary insulation and handle by self realizing existing design standard for energy efficiency of buildings requirement, the tropical resistance zone at perpends place can effectively intercept perpends place heat bridge, has reduced puzzle joint position heat bridge thermal loss.
Because the width of this complex self-thermal insulation wall building block tongue and groove is more than or equal to the width that supports perpendicular rib bottom, when blockwork is built by laying bricks or stones, upper strata building block two is supported perpendicular rib bottom and is just in time dropped on lower floor's building block two tongue and grooves, width adapts, needn't move building block, can realize that the upper strata aligns naturally with the lower floor building block, accelerated the blockwork speed of application, upper strata building block simultaneously two is supported between perpendicular rib bottom and lower floor's building block two tongue and grooves and is formed interlock, rainwater can't infiltrate the body of wall inboard from horizontal puzzle joint, simultaneously, the air chamber that bed joint face place forms can effectively intercept the heat bridge that the bed joint place forms, and has reduced the heat transfer loss of bed joint place.
Reasonable in design of the present invention, can in the size range of correlation standard, realize whole technical schemes of the present invention, engineering practice is used and can be satisfied the Code for design of masonry strucres requirement, and building construction is convenient, depends merely on self heat-insulating property and can satisfy existing design standard for energy efficiency of buildings requirement.
Description of drawings
Fig. 1 intercepts the perspective view that vestibule is arranged at the form of structure building block of insulation vestibule middle for insulation among the embodiment 1;
Fig. 2 is the vertical view of building block among Fig. 1;
Fig. 3 is that A-A among Fig. 2 is to sectional view;
Fig. 4 is the perspective view of building block body among Fig. 1;
Fig. 5 is the structural representation that insulation intercepts the insulation barrier material of filling in the vestibule among Fig. 1;
Fig. 6 intercepts for insulation among the embodiment 1 that vestibule is arranged between the insulation vestibule but the perspective view of structural shape building block between eccentric occlusion;
Fig. 7 is the perspective view of the building block body among Fig. 6;
Fig. 8 intercepts the perspective view that vestibule is arranged between the insulation vestibule and the perpendicular rib structure pattern building block of separation more than two is arranged for insulation among the embodiment 1;
Fig. 9 is the perspective view of the building block body among Fig. 8;
Figure 10 is built into the wall body structure schematic diagram for the building block of Fig. 1 structural shape;
Figure 11 intercepts the perspective view that vestibule is arranged at the structural shape building block of insulation vestibule one side for insulation among the embodiment 2;
Figure 12 is the perspective view of building block body among Figure 11;
Figure 13 is the vertical view of building block among Figure 11;
Figure 14 is that B-B among Figure 13 is to sectional view;
Figure 15 is arranged at insulation vestibule one side and has one or more to separate the perspective view of perpendicular rib structure pattern building block for insulation among the embodiment 2 intercepts vestibule;
Figure 16 is the perspective view of building block body among Figure 15;
Figure 17 is built into the wall body structure schematic diagram for the building block among Figure 11.
Among the figure: 1, building block body; 2, insulation vestibule; 3, insulation intercepts vestibule; 4, heat insulating material; 5, insulation barrier material; 6, tongue and groove; 7, upper groove; 8, low groove; 9, air chamber; 10, cross rib is strengthened at the top; 11, cross rib is strengthened in the bottom; 12, support perpendicular rib; 13, separate perpendicular rib; 14, support perpendicular rib bottom; 15, tropical resistance zone.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and non-limiting embodiment:
As Fig. 1～Fig. 5 and shown in Figure 10, a kind of complex self-thermal insulation wall building block, comprise building block body 1, building block body 1 is concrete hollow block or sintered hollow building block, have two insulation vestibule 2 and insulations that connect along the building block length direction that connect along the building block length direction in the building block body 1 and intercept vestibule 3, insulation vestibule 2 intercepts vestibule 3 with insulation and arranges and mutual the isolation along the building block width, insulation intercepts vestibule 3 and is positioned at two insulation vestibule 2 middles, promptly be incubated vestibule 2 and strengthen cross rib 10 by the top, cross rib 11 is strengthened in the bottom, support perpendicular rib 12 and separate perpendicular rib 13 and surround, be filled with heat insulating material 4 in the vestibule of insulation vestibule 2, be filled with insulation barrier material 5 in the vestibule of insulation obstruct vestibule 3, this insulation barrier material 5 stretches out along the building block length direction, cross rib 10 is strengthened at the top of building block body 1 and bottom reinforcement cross rib 11 is respectively arranged with upper groove 7 and low groove 8, upper groove 7, low groove 8 intercepts vestibule 3 corresponding to insulation and is provided with, two ends, building block body 1 top are respectively arranged with the tongue and groove 6 along its length direction, and its two ends, bottom are respectively arranged with supports perpendicular rib bottom 14.The height h of described tongue and groove 6 is less than or equal to the height H that supports perpendicular rib bottom 14, and the width b of tongue and groove 6 is more than or equal to the width B that supports perpendicular rib bottom 14.
When utilizing concrete block masonry body of wall of the present invention, upper strata building block two is supported perpendicular rib bottom 14 and is dropped on two tongue and grooves of lower floor's building block, form interlock between two tongue and grooves of building block up and down, fill insulation barrier material 5 in upper groove 7 and low groove 8, this insulation barrier material 5 stretches out and insulation intercepts insulation barrier material 5 in the vestibule 3 at vertical puzzle joint face formation tropical resistance zone 15 along the building block body length direction.Present embodiment forms the air chamber 9 that connects the building block length direction at the bed joint face place of building block both sides, and this air chamber 9 can effectively intercept the heat bridge that the bed joint place forms, and has reduced the heat transfer loss of bed joint place.
Present embodiment is not a limitation ot it with the explanation of the present invention of opposing only, and the insulation obstruct vestibule 3 in the present embodiment can also be arranged on the position between eccentric occlusion, and 6-is shown in Figure 7 as accompanying drawing.Insulation vestibule 2 in the present embodiment also can have a plurality of, 8-is shown in Figure 9 as accompanying drawing, separate perpendicular rib 13 by being provided with in the insulation vestibule 2, the insulation vestibule of every side is divided into a plurality of insulation vestibules 2, insulation vestibule 2 by the top strengthen cross rib 10, bottom strengthen cross rib 11, support perpendicular rib 12 and separate that perpendicular rib 13 surrounds or by the top strengthen cross rib 10, the bottom is strengthened cross rib 11 and separates perpendicular rib 13 surrounding.Separate perpendicular rib 13 and can be provided with many.Building block body 1 can be by changing the intensity of the bar number adjusting complex self-thermal insulation wall building block that supports the thickness that erects rib 12, separates perpendicular rib 13 and separate perpendicular rib 13, the complex self-thermal insulation wall building block of preparation non-bearing or two kinds of structural shapes of load-bearing.The top of the building block body 1 in the present embodiment and bottom also can not be provided with groove, but the heat insulating effect that the building block of groove is not set will be inferior to the building block that has groove.The upper groove 7 and the low groove 8 that are provided with on the building block body 1 in the present embodiment are not limited to the above-mentioned position that is provided with, and consider structure design and heat insulating effect, and upper groove 7 and low groove 8 preferably intercept vestibule 3 corresponding settings with insulation.
Other parts of present embodiment adopt prior art, do not repeat them here.
As Figure 11～Figure 14 and shown in Figure 17, a kind of complex self-thermal insulation wall building block, comprise building block body 1, building block body 1 is concrete hollow block or sintered hollow building block, have an insulation vestibule 2 and an insulation that connects along the building block length direction that connects along the building block length direction in the building block body 1 and intercept vestibule 3, insulation vestibule 2 intercepts vestibule 3 with insulation and arranges and mutual the isolation along the building block width, insulation intercepts the side that vestibule 3 is positioned at building block, be filled with heat insulating material 4 in the vestibule of insulation vestibule 2, be filled with insulation barrier material 5 in the vestibule of insulation obstruct vestibule 3, this insulation barrier material 5 stretches out along the building block length direction, the bottom of building block body 1 is strengthened cross rib 11 and is provided with low groove 8, low groove 8 correspondences are arranged on insulation and intercept vestibule 3 belows, two ends, building block body 1 top are respectively arranged with the tongue and groove 6 along its length direction, and its two ends, bottom are respectively arranged with supports perpendicular rib bottom 14.The height h of described tongue and groove 6 is less than or equal to the height H that supports perpendicular rib bottom 14, near the width b of the tongue and groove 6 that is incubated vestibule 2
1More than or equal to the width B that supports perpendicular rib bottom 14, intercept the width b of the tongue and groove 6 of vestibule 3 near insulation
2Equal to support the width B of perpendicular rib bottom 14 and the width b ' sum of insulation obstruct vestibule 3.
When utilizing concrete block masonry body of wall of the present invention, in low groove 8, fill insulation barrier material 5, this insulation barrier material 5 forms tropical resistance zone 15 along the building block body length direction insulation barrier material 5 that intercepts in the vestibule 3 with insulation that stretches out at vertical puzzle joint face, and present embodiment only forms the air chamber 9 that connects the building block length direction at the bed joint face place of building block one side.
Other parts of present embodiment are substantially the same manner as Example 1, do not repeat them here.
Though in conjunction with previous embodiment the present invention is had been described in detail, the present invention is not limited to aforementioned disclosure, but can make variations and modifications in not departing from the scope of the present invention.
Claims (10)
1. complex self-thermal insulation wall building block, constitute by building block body (1) and heat insulating material, it is characterized in that: described building block body (1) has at least one and intercepts vestibule (3) along insulation vestibule (2) and at least one insulation along the perforation of building block length direction that the building block length direction connects, insulation vestibule (2) and insulation intercept vestibule (3) and arrange along the building block width, be filled with described heat insulating material in its vestibule respectively, building block body (1) two ends, top are respectively arranged with the tongue and groove (6) along its length direction, its two ends, bottom are respectively arranged with supports perpendicular rib bottom (14), is provided with tropical resistance zone at vertical puzzle joint face.
2. complex self-thermal insulation wall building block according to claim 1 is characterized in that: at least two insulation vestibules (2) are arranged, and described insulation intercepts vestibule (3) and is arranged between the insulation vestibule (2).
3. complex self-thermal insulation wall building block according to claim 2 is characterized in that: described insulation vestibule (2) is strengthened cross rib (10), bottom by the top and is strengthened cross rib (11), supports perpendicular rib (12) and separate that perpendicular rib (13) surrounds or strengthen cross rib (10), bottom by the top and strengthen cross rib (11) and separation and erect rib (13) and surround.
4. complex self-thermal insulation wall building block according to claim 1 is characterized in that: described insulation intercepts the side that vestibule (3) is arranged on insulation vestibule (2).
5. complex self-thermal insulation wall building block according to claim 4 is characterized in that: the height h of described tongue and groove (6) is less than or equal to the height H that supports perpendicular rib bottom (14), near the width b of the tongue and groove (6) that is incubated vestibule (2)
1More than or equal to the width B that supports perpendicular rib bottom (14), intercept the width b of the tongue and groove (6) of vestibule (3) near insulation
2Equal to support the width B of perpendicular rib bottom (14) and the width b ' sum of insulation obstruct vestibule (3).
6. according to claim 1 or 2 or 3 or 4 or 5 described complex self-thermal insulation wall building blocks, it is characterized in that: the top of building block body (1) and bottom have at least a place to be provided with the groove that connects along its length direction.
7. complex self-thermal insulation wall building block according to claim 6, it is characterized in that: it is insulation barrier material (5) that described insulation intercepts the heat insulating material of filling in the vestibule (3), also be filled with insulation barrier material (5) in the described groove, described tropical resistance zone is stretched out along the building block length direction by insulation barrier material (5) and forms.
8. according to claim 1 or 2 or 3 or 4 or 5 described complex self-thermal insulation wall building blocks, it is characterized in that: described building block body (1) is concrete hollow block or sintered hollow building block.
9. complex self-thermal insulation wall building block according to claim 1 and 2, it is characterized in that: the height h of described tongue and groove (6) is less than or equal to the height H that supports perpendicular rib bottom (14), and the width b of tongue and groove (6) is more than or equal to the width B that supports perpendicular rib bottom (14).
10. according to claim 1 or 2 or 3 or 4 or 5 described complex self-thermal insulation wall building blocks, it is characterized in that: the heat insulating material of filling in the described insulation vestibule (2) is a foam concrete, and it is the molded polystyrene foamed plastics that insulation intercepts the heat insulating material of filling in the vestibule (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102277684A CN101886445B (en) | 2010-07-16 | 2010-07-16 | Complex self-thermal insulation wall building block |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102277684A CN101886445B (en) | 2010-07-16 | 2010-07-16 | Complex self-thermal insulation wall building block |
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| Publication Number | Publication Date |
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| CN101886445A true CN101886445A (en) | 2010-11-17 |
| CN101886445B CN101886445B (en) | 2012-06-27 |
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| CN2010102277684A Expired - Fee Related CN101886445B (en) | 2010-07-16 | 2010-07-16 | Complex self-thermal insulation wall building block |
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Cited By (6)
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| CN102989740A (en) * | 2012-10-23 | 2013-03-27 | 无锡市喷特环保工程有限公司 | Heat preservation pollution-free class garbage processing method |
| CN103899028A (en) * | 2012-12-28 | 2014-07-02 | 广西华欣建材有限公司 | Foamed concrete heat preservation brick |
| CN104047375A (en) * | 2014-04-16 | 2014-09-17 | 中建四局第三建筑工程有限公司 | Structure for brickwork connection and construction method |
| CN104499631A (en) * | 2014-12-12 | 2015-04-08 | 广西科技大学 | Polystyrene staggering-preventing heat-preservation building block |
| CN104612311A (en) * | 2014-12-12 | 2015-05-13 | 广西科技大学 | Polystyrene building block convenient for installation |
| CN105113700A (en) * | 2015-08-06 | 2015-12-02 | 中国能源建设集团江苏省电力设计院有限公司 | Self-heat-insulating building block brick of tenon-mortise heat cutoff bridge |
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| Publication number | Publication date |
|---|---|
| CN101886445B (en) | 2012-06-27 |
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