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Foam cement filling type concrete composition heat preservation building block and manufacturing method thereof

A foamed cement, composite thermal insulation technology, applied in ceramic products, other household appliances, applications, etc., can solve the problems of poor dimensional stability, poor water resistance, and high cost of thermal insulation materials, and achieve good dimensional stability, durability, and production. handy effect

Active Publication Date: 2014-03-19
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing filled small concrete blocks mainly have the following disadvantages: (1) Organic insulation materials such as XPS, EPS, and foamed polyurethane are used as filling insulation materials, which significantly reduces the combustion level of small concrete blocks from A to B1 or B2, or even B3; (2) A high-strength concrete shell with a cavity is prepared by foam concrete, mortar and other materials. The shell has high water absorption, poor water resistance, especially poor dimensional stability, and is prone to cracking and other diseases; ( 3) Foam concrete (cement) prepared by physical foaming principle is used as filling insulation material, which is prone to problems such as bleeding and settlement of filling slurry, high dry apparent density after hardening, poor thermal insulation performance, and surface depressions; (4) The cost of existing filling insulation materials is relatively high

Method used

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  • Foam cement filling type concrete composition heat preservation building block and manufacturing method thereof
  • Foam cement filling type concrete composition heat preservation building block and manufacturing method thereof
  • Foam cement filling type concrete composition heat preservation building block and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0099] The size of the concrete matrix with cavity is 390mm×240mm×190mm, the shape is cuboid, the side is flat, and there is a row of air interlayers with a width of 20mm in the inner matrix of the rear end surface, and a row of large-area cavities inside. . The air interlayer is composed of 3 small holes, the shape of the cavity is the upper and lower through holes, and there is a convex rib in the middle, and the convex rib is provided with a raised broken mark. The foamed cement filling body is filled in the cavity of the concrete matrix through the online filling equipment. The concrete matrix with a cavity and the filled foam cement are combined into one body through cementation and mechanical occlusal (that is, the embedded structure formed with the fracture).

[0100] Use a forced concrete mixer to mix cement, ultra-light ceramsite, fly ash, admixtures and water to form a mixture, and use a block forming machine to form a concrete matrix with a cavity. After 2 hours o...

Embodiment 2

[0104] The size of the concrete matrix with cavity is 390mm×240mm×190mm. large cavity. The air interlayer is composed of 2 small holes, the shape of the cavity is upper and lower through holes, and there are 3 convex ribs in the middle. The foamed cement filling body is filled in the cavity of the concrete matrix through off-line filling. The concrete matrix with the cavity and the filled foamed cement are combined into one body through bonding.

[0105] Use a forced concrete mixer to mix cement, recycled materials from construction waste, fly ash, concrete admixtures and water to form a mixture, and use a block forming machine to form a concrete matrix with a cavity. The green body with a supporting plate is 50 ℃ steam curing for 4 hours before use. Mix and stir cement, silica fume, modifier, aluminum powder and water evenly to make foamed cement slurry for filling, and then fill it in the cavity of the concrete matrix online. After the chemical foaming of the foamed cemen...

Embodiment 3

[0108] The size of the concrete matrix with a cavity is 390mm×310mm×190mm, and the shape is a cuboid. A pair of ash grooves are respectively provided on the two sides and the front and rear end surfaces. There is a row of cavities with a larger width. The air interlayer is composed of 4 small holes, the shape of the cavity is a groove structure (that is, has a groove bottom 41), and there are 3 pairs of convex ribs in the middle, and each convex rib is provided with a concave fracture. The foamed cement filling body is filled in the cavity of the concrete matrix through the line. The concrete matrix with the cavity and the filled foamed cement are combined into one body through cementation and mechanical occlusal. The cement, industrial tailings recycled raw materials, fly ash, concrete admixture and water are stirred and mixed evenly by a forced concrete mixer. Materials, using a block forming machine to form a concrete matrix with a cavity, the body with a supporting plate ...

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Abstract

The invention discloses a foam cement filling type concrete composition heat preservation building block and a manufacturing method of the foam cement filling type concrete composition heat preservation building block, which belongs to the technical field of energy-saving building materials. The building block comprises a concrete base body with a cavity, wherein at least one air space which passes through the base body is formed in the inner side of at least one outer surface; at least one cavity of which the cross section area is greater than the cross section area of the air space is further formed inside the base body; a foam cement filling body is arranged in the cavity. Due to the concrete base body, the concrete composition heat preservation building block has good physical and mechanical properties and durability, due to the air space and the foam cement, the concrete composition heat preservation building block has good thermal performance, and meanwhile a manufactured product is conveniently transferred, built, decorated and constructed because of the air space. The foam cement filling type concrete composition heat preservation building block has the characteristics of light weight, good heat preservation, thermal insulation and sound insulation effects, high strength, non-combustibility, anti-permeability and the like, and can be widely applied to internal and external walls of urban frame structure buildings and rural buildings. The building block is convenient to construct and stable in performance, and the working intensity and the construction cost are greatly alleviated and lowered.

Description

technical field [0001] The invention relates to a foamed cement-filled concrete composite thermal insulation block and a manufacturing method thereof, belonging to the technical field of energy-saving building materials. Background technique [0002] With the comprehensive advancement and continuous deepening of building energy conservation work in my country, there is an urgent need for different forms of thermal insulation systems, and the integration of structural functions has become an important direction for the development and application of structural systems. The integration of structure and energy saving not only enriches the building structure system, but also better solves the problem of the same life span between the insulation system and the building, and promotes the innovation of wall materials and building energy conservation in my country. [0003] The production process of small concrete blocks is not only energy-saving, soil-saving, waste-saving, and bene...

Claims

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Application Information

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IPC IPC(8): E04C1/41C04B28/00C04B38/02
Inventor 王武祥张磊蕾王爱军廖礼平
Owner CHINA BUILDING MATERIALS ACAD
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