CN106812240B - Bridge-cut-off type self-insulation concrete block and manufacturing process thereof - Google Patents
Bridge-cut-off type self-insulation concrete block and manufacturing process thereof Download PDFInfo
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- CN106812240B CN106812240B CN201710175243.2A CN201710175243A CN106812240B CN 106812240 B CN106812240 B CN 106812240B CN 201710175243 A CN201710175243 A CN 201710175243A CN 106812240 B CN106812240 B CN 106812240B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
- E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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Abstract
The invention relates to a broken bridge type self-heat-insulating concrete block for building energy conservation and a process for manufacturing the block, and belongs to the technical field of building materials. The bridge-cut-off type concrete hollow block is formed by combining a bridge-cut-off type concrete hollow block provided with a trapezoid protrusion and a trapezoid groove and a heat insulation material, wherein the heat insulation material is positioned in two cavities surrounded by the concrete hollow block. The concrete hollow block is made of cement, fine stone and other materials, and is provided with two bridge-cut-off connecting blocks for connecting concrete. The broken bridge connecting block consists of a plurality of glass fiber reinforced ribs and polyurethane, and is manufactured in a broken bridge connecting block die. The glass fiber reinforced rib in the broken bridge connecting block does not penetrate through the heat insulation material of the building block, so that the integrity of the heat insulation material is maintained. The building block is suitable for building bearing and non-bearing walls, and has the advantages of convenient manufacture, good mechanical property and heat preservation performance, low cost and the like.
Description
1. Technical field
The invention relates to a broken bridge type self-heat-insulating concrete block for building energy conservation and a process for manufacturing the block, and belongs to the technical field of building materials.
2. Background art
The building industry is the field with faster energy demand growth, and at present, the building energy consumption in China accounts for about one third of the total national energy consumption, so that the building energy saving potential is huge, and the building construction industry becomes the key industry of the national implementation of the energy saving and emission reduction policy. At present, the external wall heat preservation technology which is mainly used for energy conservation of buildings in China has many problems of cracking, hollowing, ignition, poor durability and the like of external wall heat preservation materials. The self-heat-preserving technology of the outer wall is an energy-saving and structure integrated technology, has low manufacturing cost and low maintenance cost, and solves the problem of heat preservation and the same service life of a building. The self-heat-preservation building block used in the external wall self-heat-preservation technology achieves the purpose of energy conservation by arranging a heat-preservation layer in the building block. However, the concrete ribs in most self-heat-preserving building blocks form a heat bridge, so that the heat-preserving performance of the building blocks is further improved, and the requirement of 75% energy conservation in cold areas cannot be met.
Chinese patent 201420248236.2 discloses a bridge-cut-off type composite self-heat-insulation building block, wherein a heat-insulation block is arranged between a left half building block and a right half building block. Dovetail grooves are formed in the inner side edges of the left half building block and the right half building block, and dovetails matched with the dovetail grooves are respectively formed in the two sides of the heat preservation block. And the dovetail is fixedly connected with dovetail grooves of the left half block and the right half block in a compound manner. The self-heat-preservation building block has the following problems: the left half block and the right half block are connected with the heat preservation layer through clamping grooves such as dovetail grooves, so that the working procedures are complicated when the blocks and the heat preservation layer are processed, and the production cost of the self-heat-preservation block is increased. The dovetail of the heat insulation material is connected with the dovetail groove of the concrete, and the connection force is weak in the connection mode, so that the integrity of the building block is poor, and the overall mechanical property is poor. Chinese patent 201510568635.6 discloses a self-heat-preserving building block and a preparation method thereof, wherein the self-heat-preserving building block adopts Y-shaped connecting pins to connect two layers of concrete and heat-preserving materials clamped between the concrete. The structure makes the connecting pin long, and if steel materials are adopted, the connecting pin becomes a heat transfer passage, and the heat preservation effect is affected. If a common plastic pin is adopted, the connecting force is weak, and the overall strength of the building block is weak. Moreover, the connecting pin must pass through the heat insulation layer, and damage to the heat insulation layer in the process of processing the building block is unavoidable, so that the heat insulation effect of the heat insulation layer is affected.
3. Summary of the invention
The invention aims to provide a broken bridge type self-heat-insulation concrete block with good mechanical and heat-insulation properties and good integrity and a manufacturing process thereof, which can meet the requirement of 75% energy conservation in cold areas.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the broken bridge type self-insulation concrete block is formed by combining broken bridge type concrete hollow blocks and heat insulation materials, and is characterized in that the heat insulation materials are located in two cavities surrounded by the broken bridge type concrete hollow blocks, the broken bridge type concrete hollow blocks are provided with two broken bridge connecting blocks, the left upper corner and the right lower corner of the broken bridge type concrete hollow blocks are provided with trapezoidal protrusions, and the left lower corner and the right upper corner of the broken bridge type concrete hollow blocks are respectively provided with trapezoidal grooves.
The bridge-cut-off connecting block is located at two ends of the bridge-cut-off type concrete hollow building block, the concrete is connected by adopting a plurality of glass fiber reinforced ribs, a cavity formed by the bridge-cut-off connecting block is filled with polyurethane, and the two ends of the glass fiber reinforced ribs are bent in parallel in the same direction.
The manufacturing process of the self-heat-preservation building block is characterized by comprising the following steps of:
step 1: binding a plurality of glass fiber reinforced ribs by using plastic binding bands, and placing the glass fiber reinforced ribs into a bridge-cutoff connecting block die;
step 2: filling polyurethane into a mould, taking out the mould after molding, and exposing glass fiber reinforced ribs with certain lengths and bending at two ends of the prepared broken bridge connecting block;
step 3: placing the bridge-cut-off connecting blocks at corresponding connection positions of two ends of a concrete hollow block mould, placing dry and hard concrete into the mould, and vibrating by a vibration forming machine to prepare the bridge-cut-off concrete hollow block;
step 4: and filling the polystyrene board or other heat-insulating materials into the hollow part of the bridge-cut type concrete hollow block to manufacture the bridge-cut type self-heat-insulating concrete block.
Compared with the prior art, the self-heat-preservation building block and the manufacturing process thereof have the beneficial effects that:
1. the building block has two heat insulating layers and three concrete layers along the thickness direction of heat transfer. The block design of the building block ensures that the whole heat insulation performance and mechanical property of the building block are good, and the load bearing requirement of the building block is met.
2. The upper left corner and the lower right corner of the building block are respectively provided with trapezoidal protrusions, the lower left corner and the upper right corner are respectively provided with trapezoidal grooves, and the design of the building block increases the connecting force of the two building blocks in the horizontal direction when the wall body is built, so that the overall stability of the built wall body is better. Meanwhile, the length of the mortar joint is increased when the building block is used for building, and a thermal bridge formed by the mortar joint when the building block is used for building a wall body is weakened.
3. The two ends of this building block all are provided with the bridge cut-off connecting block, and the heat transfer in the concrete that blocks that can be better keeps warm effect better. The broken bridge connecting blocks are arranged at two ends of the building block, and the influence on the whole compressive strength and the bending strength of the building block is small.
4. The broken bridge connecting block of the building block adopts glass fiber reinforced ribs, and polyurethane is filled in the middle. The tensile strength of the glass fiber reinforced plastic is higher than that of the screw steel with the same diameter, the expansion coefficient is closer to that of concrete, and the heat conductivity coefficient is also very small. The broken bridge connecting block can well separate a thermal bridge, and is used for connecting concrete into a whole and has high tensile strength at the joint.
5. The broken bridge connecting block is used for directly connecting two concrete blocks, and the glass fiber reinforced rib for connection does not penetrate through the heat insulation layer and cannot damage the heat insulation layer.
In conclusion, the self-heat-preservation building block has reasonable design, simple structure, good mechanical property and heat preservation performance, can ensure the quality of a building in use, solves the problem of heat preservation and the same service life of the building, and can meet the requirement of 75% energy conservation.
4. Description of the drawings
Fig. 1 is a schematic structural view of a broken bridge type self-insulation concrete block and a manufacturing process thereof.
Fig. 2 is a schematic structural view of a broken-bridge type concrete hollow block.
Fig. 3 is a schematic structural view of the break-bridge connection block.
FIG. 4 is a cross-sectional view A-A.
Fig. 5 is a schematic structural view of a broken bridge type self-insulation concrete block at the end.
Fig. 6 is a schematic view of the structure of the broken bridge type concrete hollow block at the end.
Fig. 7 is a schematic view of a block for masonry wall connection.
In the figure, 1 is a broken bridge type concrete hollow block, 2 is filled polystyrene or other heat insulation materials, 3 is a broken bridge connecting block, 31 is a glass fiber reinforced rib, and 32 is polyurethane.
5. Detailed description of the preferred embodiments
The present invention will be described in further detail with reference to fig. 1 to 7.
As shown in fig. 1, the bridge-cut-off type self-heat-insulation concrete block provided by the invention consists of a bridge-cut-off type concrete hollow block 1 and a polystyrene heat-insulation material 2. The polystyrene thermal insulation material 2 is positioned in two cavities formed by the hollow building block 1. The upper left corner and the lower right corner of the building block are respectively provided with a trapezoidal protrusion, and the lower left corner and the upper right corner are respectively provided with a trapezoidal groove.
As shown in fig. 2, the broken-bridge type concrete hollow block 1 is composed of fine stone concrete and a broken-bridge connecting block 3. The two bridge-cut-off connecting blocks 3 are used for respectively connecting two ends of the broken concrete and are positioned on concrete paths at the left end and the right end of the bridge-cut-off concrete hollow building block 1, so that the partition of two thermal bridges is formed. The fine stone concrete is made up by using cement, fine stone and water through the processes of proportioning, moulding and making them into the invented concrete. The upper left corner and the lower right corner of the hollow building block 1 are respectively provided with trapezoidal protrusions, and the lower left corner and the upper right corner are respectively provided with trapezoidal grooves.
As shown in fig. 3, the bridge-cut-off connection block 3 is composed of a plurality of glass fiber reinforcement ribs 31 and polyurethane 32. The glass fiber reinforced rib 31 is provided with threads, and the two ends of the glass fiber reinforced rib are bent in parallel in the same direction, so that the glass fiber reinforced rib has higher tensile strength, lighter weight and small heat conductivity compared with the threaded steel with the same diameter, can play a good connection role with concrete and hardly conducts heat. And placing the glass fiber reinforced ribs 31 into a bridge-cut-off connecting block mould, then injecting polyurethane, and after the polyurethane is solidified, preparing the bridge-cut-off connecting block 3. The two ends of the glass fiber reinforced rib 31 are exposed outside the polyurethane for a certain length, so that the glass fiber reinforced rib is convenient to connect with fine stone concrete.
As shown in fig. 4, which is A-A section view of the broken bridge connecting block 3, the glass fiber reinforced ribs 31 are three layers in total in the height direction of the whole block, and two layers are arranged in each layer.
As shown in fig. 5, the broken bridge type self-insulation concrete block at the end has the same structure as that of fig. 1, except that the broken bridge type self-insulation concrete block at the end has a trapezoid groove at the right upper corner and a trapezoid protrusion at the right lower corner.
As shown in fig. 6, the structure of the end broken-bridge type concrete hollow block is basically the same as that of fig. 2, except that the broken-bridge type concrete hollow block of the end has a trapezoidal recess in the right upper corner and a trapezoidal protrusion in the right lower corner.
As shown in fig. 7, the connection schematic diagram of the two end broken bridge type concrete self-heat-insulation building blocks and the common broken bridge type concrete self-heat-insulation building blocks is provided for the masonry wall. When the wall is built, the trapezoid protrusions are connected with the trapezoid grooves, so that the connection force of the wall and the integrity of the wall are improved.
The manufacturing steps of the self-heat-preservation building block are as follows:
step 1: placing a plurality of glass fiber reinforced ribs 31 with two bent ends into a bridge-cut-off connecting block mould, wherein each layer comprises 2 reinforcing ribs and three layers, and the positions of the reinforcing ribs of each layer are considered to be fixed in the mould;
step 2: and (3) injecting polyurethane into the bridge-cut-off connecting block mould, and preparing the bridge-cut-off connecting block 3 after the polyurethane is solidified. The two ends of the glass fiber reinforced rib 31 are exposed outside the polyurethane for a certain length, so that the glass fiber reinforced rib is convenient to connect with fine stone concrete.
Step 3: placing the bridge-cut-off connecting block 3 into the corresponding position of the mould of the bridge-cut-off concrete hollow block 1, placing the hard fine stone concrete into the mould of the block, and forming the concrete hollow block by vibration extrusion;
step 4: after the concrete hollow block is demolished and cured, polystyrene plates or other heat-insulating materials are filled into the two cavities of the hollow concrete block, so that the bridge-cut self-insulating concrete block is formed. The requirement of the bearing capacity of the building block is considered in the building block design, the whole bearing capacity is uniform, and the bearing capacity is good.
The bridge-cut-off type self-insulation concrete block provided by the implementation has the following characteristics: the whole building block is provided with two bridge cut-off connecting blocks, so that heat transfer is better blocked, and the whole heat preservation and insulation performance of the building block is improved. The upper left corner and the lower right corner of the self-heat-preserving building block are respectively provided with trapezoidal protrusions, the lower left corner and the upper right corner are respectively provided with trapezoidal grooves, and the connecting force between the building blocks is increased when the wall is built. The broken bridge connecting block adopts a plurality of glass fiber reinforced ribs, has high tensile strength and almost does not conduct heat, and polyurethane is filled among the glass fiber reinforced ribs, so that the blocking effect of the broken bridge connecting block on heat transfer is ensured. The glass fiber reinforced rib in the broken bridge connecting block is used for connecting concrete, does not penetrate through the heat insulation layer of the building block, and does not damage the heat insulation layer in manufacturing and use. The design of the building block ensures that the whole building block has good mechanical property, meets the requirement of bearing, has good heat preservation performance, and can meet the requirement of 75% energy conservation in cold areas by directly building the outer wall by using the building block, thereby reducing construction speed and labor intensity.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (3)
1. The manufacturing process of the broken bridge type self-heat-insulation concrete block is characterized in that the broken bridge type self-heat-insulation concrete block is formed by combining a broken bridge type concrete hollow block (1) and a heat-insulation material (2), and the heat-insulation material (2) is positioned in two cavities surrounded by the broken bridge type concrete hollow block (1);
the broken bridge type concrete hollow block (1) is provided with two broken bridge connecting blocks (3);
the broken bridge connecting block (3) consists of glass fiber reinforced ribs (31) and polyurethane (32), two ends of the glass fiber reinforced ribs (31) in the broken bridge connecting block (3) are exposed out of the polyurethane (32) for a certain length, fine stone concrete is connected, and the thickness of the polyurethane (32) is smaller than that of the heat insulation material (2);
the specific manufacturing steps are as follows:
step 1: binding a plurality of glass fiber reinforced ribs by using plastic binding bands, and placing the glass fiber reinforced ribs into a bridge-cutoff connecting block die;
step 2: filling polyurethane into a mould, taking out the mould after molding, and exposing glass fiber reinforced ribs with certain lengths and bending at two ends of the prepared broken bridge connecting block;
step 3: placing the bridge-cut-off connecting blocks at corresponding connection positions of two ends of a concrete hollow block mould, placing dry and hard concrete into the mould, and vibrating by a vibration forming machine to prepare the bridge-cut-off concrete hollow block;
step 4: and filling the polystyrene board or other heat-insulating materials into the hollow part of the bridge-cut type concrete hollow block to manufacture the bridge-cut type self-heat-insulating concrete block.
2. The manufacturing process of the bridge-cut-off type self-heat-insulation concrete block according to claim 1, wherein trapezoidal protrusions are arranged at the left upper corner and the right lower corner of the bridge-cut-off type concrete hollow block (1), and trapezoidal grooves are arranged at the left lower corner and the right upper corner respectively.
3. The process for manufacturing the broken bridge type self-insulation concrete block according to claim 1, wherein two ends of the glass fiber reinforced ribs (31) are bent in parallel in the same direction, and the glass fiber reinforced ribs (31) are three layers in the height direction of the whole block, and two glass fiber reinforced ribs are arranged in each layer.
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| CN201710175243.2A CN106812240B (en) | 2017-03-22 | 2017-03-22 | Bridge-cut-off type self-insulation concrete block and manufacturing process thereof |
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| CN107445562A (en) * | 2017-09-25 | 2017-12-08 | 泰安鲁珠保温建材有限公司 | A kind of concrete self-insulating composite block, formula and preparation method thereof |
| CN110792230A (en) * | 2019-12-03 | 2020-02-14 | 张延年 | Composite heat-bridge-free self-insulation building block |
| CN110792229A (en) * | 2019-12-03 | 2020-02-14 | 张延年 | double-Z-shaped heat-bridge-free self-insulation building block and building wall |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202745265U (en) * | 2012-05-16 | 2013-02-20 | 甘肃省建材科研设计院 | Inner-rib connected bridge-cutoff composite heat insulation block |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2394980Y (en) * | 1999-06-13 | 2000-09-06 | 黄统球 | Self heat insulation concrete hollow block |
| CN101914961A (en) * | 2009-03-19 | 2010-12-15 | 吴淑环 | Exterior wall external insulation composite wall body with support |
| CN102330482A (en) * | 2011-07-15 | 2012-01-25 | 兰州大学 | H-shaped concrete broken-bridge cross-hole linkage building block |
| CN203284955U (en) * | 2013-03-01 | 2013-11-13 | 六盘水恒远新型建材有限公司 | Self-insulating composite building block with fastening pieces |
| CN205276665U (en) * | 2015-11-25 | 2016-06-01 | 卓达新材料科技集团有限公司 | Heat retaining hollow building block |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202745265U (en) * | 2012-05-16 | 2013-02-20 | 甘肃省建材科研设计院 | Inner-rib connected bridge-cutoff composite heat insulation block |
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