Ordinary mortar containing regenerated fine aggregate

Abstract

The invention discloses ordinary mortar containing regenerated fine aggregate. The ordinary mortar containing the regenerated fine aggregate is characterized by comprising the following materials in parts by weight: 210 parts of cement, 90 parts of coal ash, 150 to 600 parts of regenerated fine aggregate and 900 to 1350 parts of artificial sand, wherein the regenerated fine aggregate is obtained by mechanically crushing waste concrete, and the grain size of the regenerated fine aggregate is 1.9 mm. Various performance indexes of the ordinary mortar containing the regenerated fine aggregate meet the requirements of related standard, norm and engineering use, the direct discharging quantity of building wastes is reduced, the ordinary mortar containing the regenerated fine aggregate is economic and environment-friendly, the problem that the waste concrete generated by daily increment of disassembling and modification projects of the original buildings (structures) cannot be treated properly is solved, and the tensile adhesive strength of the ordinary mortar containing the regenerated fine aggregate is obviously higher than that of the ordinary mortar without the regenerated fine aggregate.

Description

technical field [0001] The invention relates to an ordinary mortar, in particular to an ordinary mortar containing regenerated fine aggregate. Background technique [0002] According to incomplete statistics, construction waste accounts for about 40% of urban solid waste, among which waste concrete accounts for 30% to 40% of construction waste discharge. The demolition of original buildings (structures) and the increasing number of renovation projects will increase the amount of waste concrete produced. With the development of urban economy, the amount of waste concrete will increase, and the problem of how to deal with waste concrete fragments will become increasingly severe. [0003] Most of the treatment and reuse of waste concrete at home and abroad are crushed, cleaned, and screened to be used as recycled coarse and fine aggregates (and most of them exist in the form of coarse aggregates). At present, most recycled aggregates are used in concrete. The application of r...

AI Technical Summary

Problems solved by technology

[0003] Most of the treatment and reuse of waste concrete at home and abroad are crushed, cleaned, and screened to be used as recycled coarse and fine aggregates (and most of them exist in the form of coarse aggregates). At present, most recycled aggregates are used in concrete. The application of recycled fine aggregate in ordinary mortar is relatively seldom