Method for preparing lightweight building block by using foam glass waste material

Abstract

The invention discloses a method for preparing a lightweight building block by using foam glass waste material, which is characterized in that a foam-containing cement-based gelling material is used for bonding the foam glass waste materials together. According to the invention, the addition of the foam is controlled for adjusting the unit weight of the foamed cement mortar, and the preparation method of the lightweight building block should be selected according to the unit weight of the foamed cement mortar. The method comprises the following steps: 1)when the foam addition is 0L / Kg-0.6L / Kg(weight ratio of foam volume to the cement-based material), employing a filling method for forming, and 2)when the foam addition is 1.2L / Kg-3.5L / Kg, employing a stirring casting method for forming, uniformly stirring the foam glass fragments and foamed cement mortar, dumping in a mold for forming, after the foamed cement mortar is hardened, demoulding, and completing the maintenance to obtain the foam glass waste material lightweight building block. The foam glass waste material is capable of changing waste into valuables, and the obtained lightweight building block can be used for insulating the outer walls, the baffle walls and roof of the building.

Description

technical field [0001] The invention provides a method for preparing light-weight building blocks by using waste foam glass corners, which belongs to the field of building materials. Background technique [0002] Foam glass is a new type of environmentally friendly thermal insulation material. It uses waste glass or material rich in glass phase as the main raw material, adds foaming agent and additives, grinds it to form a batch, and puts it into heat-resistant steel In the mold, preheating, sintering, foaming, shaping, demoulding, and annealing are performed to prepare a porous glass material. Foam glass has a series of excellent properties, including fire prevention, waterproof, thermal insulation, heat insulation, light weight, high strength, anti-corrosion, moisture insulation, etc., and can be widely used in industrial and building insulation projects. [0003] With the rapid development of our country's economy, the country's requirements for building energy conservat...

AI Technical Summary

Problems solved by technology

The corner waste in the foam glass industry generally accounts for 30%-40% of the blank volume. Therefore, foam glass production plants will generate a large amount of waste foam glass corners. The usual treatment method is to accumulate them in the open air, resulting in a lot of environmental dust. Pollution, site occupation, even if industrial and mining enterprises and urban self-built house owners use it for roof insulation projects, its consumption is relatively small, and the transportation process leads to spillage and falling, which also has a greater environmental impact In recent years, the annual production scale of foam glass in China has reached more than 1 million cubic meters, so the problem of foam glass corner waste has been paid more and more attention by people.