Classification method for waste concrete block treatment

Abstract

The invention discloses a classification method for waste concrete block treatment. The invention belongs to the technical field of waste concrete block treatment. The method comprises that waste concrete blocks are pretreated, after air drying, a microwave emission device is used for heating the waste concrete blocks, after heating, the waste concrete blocks are crushed for multiple times by adopting a crusher, the recycled aggregate is subjected to classification treatment, the recycled coarse aggregate is used in new concrete to play a role of a skeleton, and the recycled fine aggregate isused as mortar sand or a filling material of a gel feeding material to treat waste concrete blocks and then classify the waste concrete blocks for use, so that exploited stones can be effectively reduced, the environment is protected and the stones are repeatedly utilized. The method is a eco-friendly, economic and sustainable generation mode, the recycled aggregate is classified in a particle size mode, the application range of the recycled aggregate can be considered according to the classification standard, the recycled aggregate can be used in a more targeted mode, the difference of different regions is met, and therefore workers can use the recycled aggregate more conveniently.

Description

technical field [0001] The invention belongs to the technical field of waste concrete block processing, and in particular relates to a classification method for waste concrete block processing. Background technique [0002] With the renewal, transformation and construction of urban public and civil buildings and municipal facilities, a large number of old buildings have been demolished during the construction process, resulting in a large amount of construction waste. At present, my country's construction waste has accounted for 30-40% of the weight of urban waste. %, according to the relevant data, after a rough estimate of the loss of construction materials for buildings such as brick-concrete structures, cast-in-place structures, and frame structures, only 500-600 tons of construction waste will be produced during the construction process of each square meter of buildings. According to this calculation, only 4,000 tons of construction waste generated and discharged during c...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sorting method for waste concrete blocks, which solves the problem that although the traditional crushing method can classify waste concrete blocks into recycled aggregates, the quality of the generated recycled aggregates is poor , which contains a large number of microcracks inside, which affects the quality of concrete, thus limiting the use range of recycled aggregates and reducing the practicality of recycled aggregates