Method for manufacturing concrete by utilizing building solid wastes

Abstract

The invention relates to a method for manufacturing concrete by using building solid wastes. A driving and pressing device is adopted and comprises a bottom rack, a support column, a vertical rack, arolling mechanism and a screening mechanism. The method can solve the following problems that a, in the traditional building solid waste treatment process, due to different specifications and sizes ofthe building solid wastes, synchronous treatment of the building solid wastes of different specifications and sizes is difficult to achieve; during traditional building solid waste treatment, due toinsufficient driving and pressing, cement mortar can still be mixed on stones, so that the water mixing amount is increased during use, and the strength of concrete is affected; b, after the traditional building solid waste is treated, due to the fact that the cement mortar and the stones are still doped together, if screening treatment is not conducted, further surface cleaning treatment of the stones is affected; and meanwhile, blockage of the interior of the device is possibly caused in the crushing treatment process due to the large size of the building solid wastes.

Description

technical field [0001] The invention relates to the field of reuse of construction solid waste, in particular to a method for making concrete by utilizing construction solid waste. Background technique [0002] Using cementitious material (cement), water, fine aggregate (sand), coarse aggregate (stone), admixture and mineral admixture (mixed when necessary) as raw materials, mixed in an appropriate proportion, after uniform mixing, Concrete is formed by dense molding and curing and hardening. The stones and sand required in the process of concrete processing need to be obtained from nature. However, in order to save natural resources, protect the environment, and minimize the mining of sand and gravel raw materials, we can recycle the generated construction waste Utilization, when the obsolete concrete buildings are demolished, the construction solid waste occupies a large area and there is not enough space for stacking, which not only invades the land, but also affects the ...

AI Technical Summary

Problems solved by technology

[0003] At present, the following problems exist in the recycling and reprocessing of construction solid waste: a. During the processing of traditional construction solid waste, due to the different specifications and sizes of construction solid waste, it is difficult to realize simultaneous processing of construction solid waste of different sizes, and the traditional During the treatment of construction solid waste, due to insufficient pressure, there may still be cement mortar mixed with the stones, which will increase the amount of water mixed during use and affect the strength of concrete; Mortar and stones are still mixed together. If no screening treatment is carried out, the further surface cleaning treatment of the stones will be affected. At the same time, due to the large volume of construction solid waste, it may cause blockage inside the device during the crushing process, which will affect the treatment of construction solid waste. efficiency

Images