Lightweight concrete material from cast-in-situ wall construction waste and production and use method thereof

Abstract

The invention discloses a cast-in-site wall construction waste lightweight concrete material, a production method and an application method thereof. The product is produced by using wasters and crushed concrete renewed aggregates in construction waste, and mixing cement as adhesive material and wet fly ash discharged by power plants as blending material, and comprises the following components by weight percentage: 20-25 percent of coarse aggregate, 50-55 percent of fine aggregate, 15-18 percent of cement, and 10-12 percent of coarse wet discharged ash. The production method artificially decomposes large waster bricks and concrete in the construction waste into small pieces, and regenerates the coarse aggregate and the fine aggregate by secondary crushing and screening, and then carries out blending, mixing and stirring after automatic weighing. The application method comprises the steps that: the product is added with water and mixed, and the wall is treated with on-site box plate production and cast-in-site. The invention is characterized in that: 1. the strength is high and the shrinkage is small; 2. the thermal insulation and freeze-proof properties are good; 3. the walls are thin and light, the occupied area is less, the thickness of an internal partition wall is 10cm and that of an external wall is 15-20cm, and the saved area is more than 50 percent; and 4. both the internal wall and the external wall can be treated with cast-in-situ.

Description

technical field [0001] The invention relates to a lightweight concrete material for cast-in-place wall construction waste and a method for manufacturing and using the same, belonging to the field of building construction materials. Background technique [0002] At present, people are building buildings, museums or residential buildings, mostly using cast frame or concrete brick structure, and their walls are generally made of solid clay bricks, clay hollow bricks or ordinary concrete casting, although the country has reduced land resources in order to protect land resources. , to restrict or prohibit the use of clay bricks, but there are still not a few users; at present, there are many kinds of bricks or blocks made of light aggregate concrete such as cinder, slag, water slag, and powdered coal dust, and the walls are also made of bricks. method, because the wall body of building is wide and thick, so they all have the following deficiencies, one is that the ground load is ...

AI Technical Summary

Problems solved by technology

[0002] At present, people are building buildings, museums or residential buildings, mostly using cast frame or concrete brick structure, and their walls are generally made of solid clay bricks, clay hollow bricks or ordinary concrete casting, although the country has reduced land resources in order to protect land resources. , to restrict or prohibit the use of clay bricks, but there are still not a few users; at present, there are many kinds of bricks or blocks made of light aggregate concrete such as cinder, slag, water slag, and powdered coal dust, and the walls are also made of bricks. method, because the wall body of building is wide and thick, so they all have the following deficiencies, one is that the ground load is heavy, and the foundation is deep and large; There are many processes and labor-intensive and time-consuming. It is reported that there are already cast-in-place construction waste concrete materials, but they can only be used for internal partition walls and not for external walls.