Construction waste regenerated brick and preparation method thereof

Abstract

The invention relates to the technical field of regenerated bricks, and discloses a construction waste regenerated brick which comprises the following raw materials in parts by weight: 30-45 parts of cement, 65-80 parts of fine aggregate, 55-70 parts of recycled brick coarse aggregate, 1-5 parts of polypropylene fibers, 10-20 parts of kaolin, 30-50 parts of fly ash, 1-5 parts of a water reducing agent, 1-5 parts of an early strength agent, 1-5 parts of an anti-freezing agent and 15-25 parts of water. The invention further relates to a preparation method of the construction waste regenerated brick, which comprises the steps of 1) preparing cement, fine aggregate, regenerated brick coarse aggregate, polypropylene fibers, kaolin, fly ash, a water reducing agent, an early strength agent, an anti-freezing agent and water, pre-wetting a barrel of a stirrer, then putting the regenerated brick coarse aggregate, the cement and the fine aggregate into the stirrer, pre-stirring for 2-3 minutes, uniformly stirring to obtain a mixture for later use, uniformly dispersing the polypropylene fibers into the obtained mixture, and carrying out dry mixing for 1-2 minutes to obtain mixed powder. According to the construction waste regenerated brick and the preparation method thereof, the purpose of higher strength is achieved.

Description

technical field [0001] The invention relates to the technical field of recycled bricks, in particular to a recycled brick from construction waste and a preparation method thereof. Background technique [0002] Regenerated bricks are made of broken ruins as aggregates, mixed with cut wheat straw as fibers, cement, sand, etc., and made into lightweight blocks by the original brick factory in the disaster area, and are used as reconstruction materials for the disaster area. The material "regeneration" of waste materials is also the spiritual and emotional "regeneration" of post-disaster reconstruction. [0003] The existing construction waste recycled bricks have low cost and good environmental protection effect, but in the actual use process, the strength of the existing construction waste recycled bricks is not high enough, and although the preparation method is simple, the quality of the recycled bricks cannot be better guaranteed, so A construction waste regenerated brick ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a construction waste regenerated brick and its preparation method, which has the advantage of higher strength, and solves the problem that the strength of the existing construction waste regenerated brick is not high enough, and although the preparation method is simple, the regenerated The quality of bricks cannot be better guaranteed