CN202214897U - Foam concrete sandwich building block - Google Patents

Abstract

The utility model discloses a foam concrete sandwich block, its main part comprises outer wall (1) and inner wall (2), and outer wall and inner wall enclose into four sandwich chambers, its characterized in that: the 4 sandwich cavities (3 and 5) are different in size, and inorganic heat-insulating light materials are added into the sandwich cavities to form a sandwich layer; the front of the building block is provided with a tenon (4), and the back is provided with a groove (6); the outer wall and the inner wall are gradually thickened from the top surface to the bottom surface, and the inner angle of a sandwich cavity enclosed by the outer wall and the inner wall is a fillet (7). The building block is a structural material and a heat-insulating material of a building, can replace red bricks and heat-insulating polystyrene boards, and therefore, the total construction cost of the building heat insulation can be reduced by about 30 percent. The building block has low heat conductivity coefficient, four sandwich cavities, hollow rate of 60-62% and excellent heat insulating property. The building block is made of inorganic material, and has fire-proof and fire-proof performance, and its fire-proof temp. can be up to above 1000 deg.C.

Description

Foam concrete sandwich block

Technical Field The utility model relates to a building material, specifically a thermal insulation building block. the

Background technology Building thermal insulation is a major issue of current energy saving and emission reduction and sustainable development in the future. Its development direction is self-insulation. However, due to the unsatisfactory products of various self-insulation building blocks, some have poor structure and some have complex structures. The cost is high, and so far most buildings still passively adopt secondary insulation, that is, after the building is completed, thermal insulation materials such as externally pasted or externally hung foam plastic boards are carried out. The construction amount is large, and the insulation material is consumed in addition, and the construction cost is high. Some insulation materials are flammable and cause fire hazards, such as the fire caused by Shanghai's externally pasted insulation boards. It is an urgent problem to be solved at present to develop self-insulating building blocks with good structure and thermal insulation properties. the

According to the national building energy-saving 65% wall design requirements, the heat transfer coefficient of the wall required in different places is different, so the thickness of the required blocks is different. According to the different construction areas, the thickness can be 20cm, 24cm, 30cm, 37cm, and the height is 19cm. Hollow blocks to meet the wall design requirements of 65% energy saving for buildings in different regions. For example, the Beijing area requires a thickness of 24cm, and Chifeng requires a thickness of about 30cm. The thickness of the hollow block is different, and the design structure is also different. the

SUMMARY OF THE INVENTION The purpose of this utility model is to provide a foam concrete sandwich block, which is both a structural material and a thermal insulation material, which is energy-saving, environmentally friendly, and reduces construction costs. the

The technical scheme of the utility model is as follows:

The main body of the block is composed of an outer wall and an inner wall. The outer wall and the inner wall form four sandwich cavities. The above four sandwich cavities are of different sizes. In the sandwich cavity, inorganic heat-insulating light-weight materials are added to form the core layer; the front of the block is provided with tenons. , a groove is arranged at the back; the above-mentioned outer wall and inner wall are gradually thickened from the top surface to the bottom surface, and the inner corners of the sandwich cavity surrounded by the above-mentioned outer wall and inner wall are rounded. the

The above-mentioned inorganic thermal insulation light body material is foam concrete or foam perlite. the

The utility model has the advantages that: 1. Since the block is self-insulating, the cost of building insulation can be greatly reduced. High cost is one of the important reasons restricting the development of building energy conservation at present. It is not only the structural material of the building, but also the thermal insulation material. This block can replace both red bricks and thermal insulation benzene boards. Therefore, the total cost of building thermal insulation can be reduced. About 30%. the

2. Low thermal conductivity and excellent thermal insulation. The block has four sandwich cavities, the hollow rate is 60-62%, the core layer is the heat preservation main body, the hollow filling part of the block is made of air foam concrete, and its thermal conductivity is below 0.06w/m·k. the

3. High strength and good bending resistance. The compressive strength of the core layer of this product is 0.15MPa, the compressive strength of the main block is 0.4MPa, and the overall compressive strength performance is excellent. the

4. The main raw material of the outer wall of this product is fly ash, and the core layer is foam concrete, which is an all-inorganic material. It is fire-proof and fire-resistant. The fire-resistant temperature can reach above 1000 ° C, and the fire-resistant limit is greater than 2 hours, exceeding the fire-proof requirement of 1.5 hours. the

5. Lightweight and low density, which is beneficial to reduce the weight of the building. the

The volume density of the core layer of this product is 200kg/m ³ , and the volume density of the main body is 600kg/m ³ , realizing light weight (the volume density of ordinary concrete is 2400kg/m ³ ).

This block has been inspected by the National Building Materials Industrial Building Materials Quality Supervision, Inspection and Testing Center, and meets the national standards. the

Table 1 Performance index table of this product

Inspection basis: GB11968-2006 "Autoclaved Aerated Concrete Block", GB/T11970-1997 "Test Method for Bulk Density, Moisture Content and Water Absorption of Aerated Concrete"

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural representation of the utility model;

Fig. 2 is the B-B direction view of Fig. 1;

Fig. 3 is the A-A direction view of Fig. 1;

Fig. 4 is a C-C arrow view of Fig. 1 . the

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The utility model will be further described below in conjunction with the accompanying drawings. the

It can be seen from Figure 1-4 that the main body of this block is composed of outer wall 1 and inner wall 2, with a total thickness of 29cm. The raw materials used in the main part are fly ash, fly ash ceramsite, water slag powder, and cement processing. The bulk density of the main part of the hollow block is controlled below 600kg/m ³ , and the outer wall and inner wall enclose four sandwich cavities 3 and 5 of different sizes, and air foam concrete is added in the cavity to form the core layer; the above-mentioned outer wall and inner wall are composed of The top surface to the bottom surface is gradually thickened in order to increase its strength; the front of the block is provided with a tenon 4, and the back is provided with a groove 6; crack.

Claims (2)

1. A foam concrete sandwich block, its main body is made of outer wall (1) and inner wall (2), and outer wall and inner wall encircle four sandwich cavities, it is characterized in that: above-mentioned 4 sandwich cavities (3,5) size Different, the core layer is formed by adding inorganic heat-preserving light-body materials in the sandwich cavity; the front of the block is provided with tenons (4), and the back is provided with grooves (6); the above-mentioned outer wall and inner wall are gradually thickened from the top surface to the bottom surface, and the above-mentioned The inner angle of the sandwich cavity surrounded by the outer wall and the inner wall of the inner wall is rounded (7). 2. The foamed concrete sandwich block according to claim 1, characterized in that: its inorganic heat-insulating light body material is foamed concrete or foamed perlite.

Images