CN201943248U - Double-cavity compound heat insulation building block - Google Patents

Abstract

The utility model discloses a double-cavity composite thermal insulation block, which is composed of a hollow concrete shell 1 and an inorganic thermal insulation foam 2 filled in a cavity 4 of the concrete shell phosphogypsum or desulfurized gypsum and cement; The composite thermal insulation block is built with concrete mortar, and there are two flat protrusions on the end face. U-shaped groove 3; the structure of the double-cavity composite thermal insulation block is reasonable, and the middle layer of the concrete shell is added with a U-shaped groove 3 extending the length of the cold and hot bridge. At the same time, after testing, the strength of the block is guaranteed and the thermal insulation effect is remarkable , the energy-saving effect is also very obvious, and there will be good economic and social benefits after popularization and use.

Description

Double cavity composite insulation block

technical field

The utility model relates to the field of construction and self-insulation materials, in particular to a double-cavity composite insulation block for external use in buildings.

Background technique

The wall made of thermal insulation blocks and mortar can be used as the load-bearing wall and maintenance wall of industrial and civil buildings. The current main structure of this thermal insulation block is composed of a concrete shell and foamed concrete or filled foam filled in the cavity of the concrete shell. When using blocks, all four sides need to be built with concrete mortar. Although the thermal conductivity of foam is low, due to the high thermal conductivity of concrete, both the concrete shell and the concrete mortar will transfer heat, and the cavities are mostly regular cubes and cuboids. , which makes the heat transfer path of the concrete shell and concrete mortar short, and its heat insulation effect is limited. Although there have been some heterosexual blocks (such as tongue-and-groove thermal insulation blocks) that block the cold and heat bridges, the investment in equipment is large and the production efficiency is low. T-shaped walls, right-angled walls, and curved walls are inconvenient to build. There are block modules that do not meet the requirements and are inconvenient to use.

Similar examples have appeared in Chinese patent documents, such as patent No. ZL 200520091572.1, the name of the utility model is "Special-shaped Concrete Thermal Insulation Exterior Wall Block without Straight Seam" and patent No. ZL 200720013576.7, the name of the utility model is "A Kind of Core Core Development This is the case for foam concrete insulation blocks.

Invention content:

The purpose of this utility model is to overcome the above-mentioned shortcomings, and to design a double-cavity composite thermal insulation block by extending the heat transfer path, greatly reducing the heat transfer coefficient, and the block modulus meets the building modulus requirements.

The utility model uses the following technical solutions

A double-cavity composite thermal insulation block, which is composed of a hollow concrete shell 1 and an inorganic thermal insulation foam 2 mixed with phosphogypsum or desulfurized gypsum and cement filled in the cavity 3 of the concrete shell; the double-cavity composite thermal insulation block is used There are two flat protrusions on the end face of the concrete shell masonry. The trapezoidal cross-section at 5 places is 5mm×15mm∽5mm×30mm in height×width. A U-shaped groove is added to the middle layer of the end face of the concrete shell masonry to extend the length of the cold and heat bridge. Slot 3.

The beneficial effect of the utility model is that the structure of the double-cavity composite thermal insulation block is reasonable, and the middle layer of the concrete shell is added with a groove extending the length of the cold and thermal bridge, while ensuring the strength of the block. After testing, the thermal insulation effect is remarkable, and the energy saving effect is also very obvious. After popularization and use, there will be good economic and social benefits.

Description of drawings

Fig. 1 is the structural representation of the utility model double-cavity composite thermal insulation block;

Fig. 2 is a schematic structural diagram of a utility model double-cavity composite thermal insulation block.

In Figure 1-2, 1. Concrete shell, 2. Inorganic thermal insulation foam, 3. U-shaped groove extending the length of the cold and heat bridge, 4. The cavity in the concrete shell, 5. Two flat protrusions on the end surface .

Detailed ways

Example 1

For the double-cavity composite thermal insulation block, the hollow concrete shell 1 is prepared first, and then, the inorganic thermal insulation foam body of phosphogypsum or desulfurized gypsum and cement mixed in the hollow concrete shell cavity is filled in the concrete shell cavity 4 2. The obtained double-cavity composite thermal insulation block is built with concrete mortar and has two flat protruding strips on the end face. U-shaped groove 3 with the length of the thermal bridge; two double-cavity composite thermal insulation blocks are built with concrete mortar, and there are two flat protrusions on the end faces. Concrete mortar, the middle of the U-shaped groove 3 is not filled with mortar during masonry, and the U-shaped groove that extends the length of the cold and hot bridge is added in the middle to form an air layer to enhance the thermal insulation effect of the double-cavity composite thermal insulation block.

Claims (1)

1. A double-cavity composite thermal insulation block is characterized in that it is composed of a hollow concrete shell (1) and an inorganic thermal insulation foam (2) that is filled with phosphogypsum or desulfurized gypsum and cement in the cavity of the concrete shell ; The double-cavity composite thermal insulation block uses concrete mortar to build the end face, and there are two flat protrusions (5). A U-shaped groove (3) extending the length of the cold and heat bridge.

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