CN203049887U - Thick-wall type composite sintering shale hollow block - Google Patents

Abstract

The utility model discloses a thick-walled composite sintered shale hollow block, which comprises a block body. Holes are distributed in the block body, and the holes are arranged in rows along the thickness direction of the block body. There is also a filling hole, the filling hole is filled with thermal insulation slurry, the filling hole is set close to one side of the block body, the filling hole is close to the side wall of the block body and the side wall opposite to it The thickness is not less than 25mm; the utility model optimizes the hole shape and hole distribution, and sets the filling hole filled with thermal insulation slurry, and at the same time increases the thickness of the side wall of the filling hole close to the block body and the side wall opposite to it. A thick-walled composite sintered shale hollow block, which has good thermal performance and can be used in the self-insulation system of the wall. In addition, when the through hole is facing upwards, its strength level can reach MU5. At the same time, the thickened block The anchorage reliability of the body side wall is greatly improved.

Description

Thick-wall composite sintered shale hollow block

technical field

The utility model relates to a wall material, in particular to a composite sintered shale hollow block.

Background technique

Sintered shale hollow block is a kind of non-clay, high-porosity block made of natural inorganic silicate material shale and quartz tailing sand as the main raw materials, which is formed by high-vacuum extrusion and high-temperature natural gas (above 930°C) roasting. High-efficiency new wall materials. This type of product has good properties of compression resistance, thermal insulation, heat insulation, sound insulation, crack resistance, etc., and can be used for new construction, expansion and reconstruction of non-load-bearing walls inside and outside industrial and civil buildings. However, with the continuous improvement of building energy-saving standards, it is imminent to improve the thermal performance of traditional sintered shale hollow blocks.

Ordinary shale bricks have poor thermal insulation performance. If they are used in self-insulation systems and cannot meet the standard requirements, an insulation layer needs to be added. Moreover, due to the thin outer wall of the bricks and poor anchorage reliability, they cannot meet the standard requirements for anchorage when used for external insulation. Great quality hidden danger.

Utility model content

In view of this, the utility model provides a thick-walled composite sintered shale hollow block, which has a small equivalent thermal conductivity and good thermal performance, can be used in wall self-insulation systems and has high anchoring reliability .

The purpose of this utility model is achieved by the following technical solutions:

A thick-walled composite sintered shale hollow block, comprising a block body, holes are distributed in the block body, the cross-section of the hole is rectangular and the hole runs through the two end faces of the block body; On the end face of the block body, the holes are arranged in rows along the thickness direction of the block body, the holes in the same row are evenly spaced, and the holes in two adjacent rows are arranged in a staggered manner; the block body is also provided with a filling hole, the filling hole The hole is filled with thermal insulation slurry, the cross section of the filling hole is rectangular and the filling hole runs through the two end faces of the block body, the filling hole is set close to one side of the block body, and the filling hole is close to the block body The thickness of the side wall of the body and the side wall opposite to it is not less than 25 mm;

Further, the thickness of the filling hole close to the side wall of the block body and the side wall opposite to it is 25mm;

Further, the number of the holes is 25, arranged in 7 rows, 3 holes in a row and 4 holes in a row alternately arranged;

Further, the thermal insulation slurry is foamed concrete or rigid polyurethane foam, and the filling thickness is 35 mm.

The beneficial effects of the utility model are: the utility model optimizes the hole shape and hole distribution, and sets the filling holes filled with thermal insulation slurry, and at the same time increases the thickness of the side wall of the filling hole close to the block body and the side wall opposite to it , a thick-walled composite sintered shale hollow block was obtained. After calculation, when the filling material in the block hole is foam concrete, the block equivalent thermal conductivity λ _eq = 0.225 W/(m·K), when filled When the material is polyurethane rigid foam, the equivalent thermal conductivity of the block λ _eq = 0.195 W/(m K), so it has good thermal performance and can be used in the self-insulation system of the wall. In addition, the through hole faces upward during masonry , its strength level can reach MU5, and the anchoring reliability of the thickened block side wall is greatly improved.

Other advantages, objectives and features of the present utility model will be set forth in the following description to some extent, and to some extent, based on the investigation and research below, it will be obvious to those skilled in the art, or can be Get teaching from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is the three-dimensional structure schematic diagram of composite type sintered shale hollow block of the present utility model;

Fig. 2 is a schematic diagram of the end face structure of the composite sintered shale hollow block of the present invention.

Detailed ways

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the utility model, rather than limiting the protection scope of the utility model.

As shown in the figure, a thick-walled composite sintered shale hollow block includes a block body 1, and holes 2 are distributed in the block body. The cross section of the hole is rectangular and the hole runs through both sides of the block body. on the end face of the block body, the holes are arranged in rows along the thickness direction of the block body, the holes in the same row are evenly spaced, and the holes in two adjacent rows are staggered; A filling hole 3, the filling hole is filled with thermal insulation slurry, the cross section of the filling hole is rectangular and the filling hole runs through the two end faces of the block body, and the filling hole is arranged close to one side of the block body, The thickness of the filling hole close to the side wall of the block body and the side wall 1a opposite to it is 25 mm.

In this embodiment, the number of holes is 25, arranged in 7 rows, and a row of 3 holes is arranged alternately with a row of 4 holes.

In this embodiment, the thermal insulation slurry is foamed concrete. Of course, in other embodiments, it can also be traditional and new thermal insulation slurry such as polyurethane rigid foam or foamed cement slurry, and the filling thickness is 35 mm.

The thick-walled composite sintered shale hollow block of the utility model is analyzed by ANSYS for axial compressive strength, and the principal stress value and compressive strength obtained by ANSYS analysis are shown in Table 1.

Table 1 Simulation results of principal stress values and compressive strength values

=6.24 N/mm²，抗压强度标准差

=0.49 N/mm²，变异系数

=0.08<0.21，抗压强度标准值

=5.36 N/mm²，强度等级为MU5。同理得到的填充聚氨酯硬泡沫塑料时，其抗压强度标准值为5.29 N/mm²，强度等级MU5。 The load applied to the calculation of the mechanical properties of the block is 5.0 N/mm ² . When the block is placed, the through hole faces upward, and the load is applied vertically from top to bottom along the direction of the through hole. Taking the block filled with foam concrete as an example, the calculation is The maximum compressive stress of the block is 16.365N/mm ² , and the compressive strength of the block is mainly determined by shale. The compressive strengths of five groups of measured shale solid bricks are 20.85 N/mm ² , 17.99 N/mm ² , 22.32 N/mm ² , 21.05 N/mm ² , and 19.97 N/mm ² . Assuming that the block is elastic before failure, it can be deduced that the compressive strength values of the block are 6.37 N/mm ² , 5.50 N/mm ² , 6.82 N/mm ² , 6.43 N/mm ² , 6.10 N/mm 2 mm ² . According to the method of "Sintered Hollow Bricks and Hollow Blocks" GB13545-2003, the average value of compressive strength is calculated

=6.24 N/mm ² , standard deviation of compressive strength

=0.49 N/mm ² , coefficient of variation

=0.08<0.21, standard value of compressive strength

=5.36 N/mm ² , the strength grade is MU5. When filled with rigid polyurethane foam obtained in the same way, its standard value of compressive strength is 5.29 N/mm ² , and its strength grade is MU5.

为传热面积，m²；

为砌块砌筑时的墙厚，m。 The equivalent thermal conductivity of the thick-walled composite sintered shale hollow block in this example is analyzed by ANSYS Fluent. The heat transfer calculation result of the block is: the total heat inflow and outflow Q = 1.120W, and the equivalent thermal conductivity of the block is calculated to be λ _eq = 0.225 W/(m·K). When the filling material is polyurethane rigid foam, the total inflow and outflow heat Q = 0.987W, and the equivalent thermal conductivity of the block is calculated to be λ _eq = 0.195 W/(m·K). here,

is the heat transfer area, m ² ;

is the thickness of the wall when the blocks are built, m.

To sum up, the utility model obtains a new structure by optimizing the hole shape and hole distribution, setting the filling hole filled with thermal insulation slurry, and increasing the side wall of the filling hole close to the block body and the thickness of the side wall opposite to it. A thick-walled composite sintered shale hollow block. After calculation, when the filling material in the block hole is foam concrete, the block equivalent thermal conductivity λ _eq = 0.225 W/(m·K), when the filling material is polyurethane hard For foam plastics, the block equivalent thermal conductivity λ _eq = 0.195 W/(m K), so it has good thermal performance and can be used in the self-insulation system of the wall. It can reach MU5, and at the same time, the anchoring reliability of the thickened block side wall is greatly improved.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions shall be covered by the claims of the present utility model.

Claims (4)

1. the complex sintered shale building-block of heavy wall type comprises building block body, is distributed with hole in the described building block body, and the cross section of described hole is two end faces that rectangle and hole connect building block body; On the end face of building block body, described hole is in a row arranged along the building block body thickness direction, with at interval even between the round hole, and interlaced arrangement between the adjacent two round holes; Also be provided with a filler opening in the described building block body, be filled with heat preservation slurry in the described filler opening, the cross section of described filler opening is two end faces that rectangle and filler opening connect building block body, described filler opening arranges near side of building block body, and it is characterized in that: described filler opening is not less than 25 mm near sidewall and the sidewall thickness on the other side of building block body.

2. the complex sintered shale building-block of heavy wall type according to claim 1, it is characterized in that: described filler opening is 25mm near sidewall and the sidewall thickness on the other side of building block body.

3. the complex sintered shale building-block of heavy wall type according to claim 1, it is characterized in that: the quantity of described hole is 25, is arranged as 7 rows, 3 holes one rows and 4 holes, one row's interlaced arrangement.

4. the complex sintered shale building-block of heavy wall type according to claim 1, it is characterized in that: described heat preservation slurry is foam concrete or rigid polyurethane foams, filling thickness is 35 mm.

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