Method of preparing building bricks by adopting gangue

Abstract

The invention discloses a method of preparing building bricks by adopting gangue and relates to the technical field of building materials. The method specifically comprises the following steps: (1) weighing raw materials: gangue, coal ash, weathered shale, sludge, clay, cement, cotton fibers, wood fibers, a defoamer, a water reducer, an early strength agent and water; (2) crushing and screening the gangue, coal ash and weathered shale; (3) preparing a mixed material A; (4) preparing a mixed material B; (5) mixing the mixed materials A and B; (6) preparing brick blocks; (7) drying the brick blocks; and (8) sintering the brick blocks. The building bricks not only are light in weight, great in thermal inertia and good in insulating and heat isolating property, and the use level of a ceramic waste material can be reduced greatly.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing building bricks from coal gangue. Background technique [0002] my country is the largest developing country in the world. Urban and rural construction is inseparable from a large number of building materials. Although there are many unburned bricks and aerated bricks, the traditional building materials still occupy a large part of them. Usage amount. However, the current fired bricks are mostly simple shale bricks and clay bricks, and the firing process has many defects, resulting in many pores in the brick body, and poor strength, heat preservation, heat insulation, and mechanical properties. In northern my country, the annual heating energy consumption in winter accounts for almost 30-40% of the total energy consumption. Therefore, reducing heating energy consumption is a very important issue. Usually, two methods are used to reduce heating e...

AI Technical Summary

Problems solved by technology

[0002] my country is the largest developing country in the world. Urban and rural construction is inseparable from a large number of building materials. Although there are many unburned bricks and aerated bricks, the traditional building materials still occupy a large part of them. Usage amount

However, the current fired bricks are mostly simple shale bricks and clay bricks, and the firing process has many defects, resulting in many pores in the brick body, and poor strength, heat preservation, heat insulation, and mechanical properties.