Recycled aggregate water-permeable brick and production method thereof

Abstract

The invention provides a recycled aggregate water-permeable brick and a production method thereof. The recycled aggregate water-permeable brick comprises a base layer, and the base layer comprises, byweight, 95-105 parts of recycled aggregates, 14-16 parts of cement, 14-16 parts of fly ash and 0.22-0.32 part of a water reducer. The production method comprises the following steps: uniformly mixingthe cement, the fly ash and the water reducer, adding water, performing stirring, and adding wetted aggregates; adding the obtained mixture into a mold, and carrying out vibration extrusion molding under 1.5-3 MPa for 15-30 s; and demolding the obtained water-permeable brick, standing the water-permeable brick for 2 h, transferring the water-permeable brick into an autoclave, and curing the water-permeable brick under 0.8-1 MPa at 173-185 DEG C for 6-10 h. The aggregates are recycled aggregates, the use amount of the cement is small, the water-permeable brick has a high compressive strength and a high water permeability, the molding process is quick and simple, and has a low cost, and the environmental pollution can be effectively reduced, so the recycled aggregate water-permeable brick is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a recycled aggregate permeable brick and a preparation method thereof. Background technique [0002] At present, natural resources are scarce, and the price of construction raw materials continues to rise. Making construction waste into recycled aggregate after crushing, screening and particle shaping can effectively realize the resource utilization of construction waste, alleviate the current situation of resource shortage, and achieve resource conservation. The purpose of reducing environmental pollution. Due to the large fluctuations in the quality of recycled aggregate, its instability limits its application in housing construction. Most of the recycled concrete is used in infrastructure construction with low safety requirements. These products have low market value, and the recycled aggregate is prepared As a new type of pavement material, permeable brick has the...

AI Technical Summary

Problems solved by technology

[0006] 1. Recycled aggregate permeable bricks with high strength mostly use recycled and natural aggregates in a ratio of half, while permeable bricks using fully recycled aggregates have lower strength;

[0007] 2. The cement consumption of recycled aggregate permeable bricks is relatively large, and the cement consumption mostly accounts for more than 70%;

[0008] 3. The preparation of raw materials is complicated, the preparation method is complicated, and the material preparation is complicated;

[0009] 4. Most of the maintenance methods adopt standard maintenance. The maintenance conditions are difficult to achieve, and the cost is relatively high, the maintenance cycle is long, the storage space is occupied, and it is difficult to realize large-scale industrial production