Lime-ash stabilized building garbage regenerated mixture and preparation method thereof

Abstract

The invention discloses a lime-ash stabilized building garbage regenerated mixture and a preparation method thereof. The mixture includes the following raw materials: lime, fly ash, water, and building garbage regenerated aggregate being a brick-concrete blended building garbage regenerated aggregate that includes: a regenerated coarse aggregate being 19.0-31.5 mm, a regenerated coarse aggregate being 9.5-19.0 mm, a regenerated coarse aggregate being 4.75-9.5 mm, and a regenerated fine aggregate being 0-4.75 mm in specifications. With lime and fly ash being the cementing material, natural gravel raw materials, such as limestone, are all replaced by means of the brick-concrete blended building garbage regenerated aggregate. The produced lime-ash stabilized building garbage regenerated mixture has high strength and good stability and anti-cracking effect. The preparation method is simple and is low in production cost, can turn the waste, building garbage, into resources, and is low-carbon and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a fly ash-stabilized construction waste regeneration mixture and a preparation method thereof. Background technique [0002] With the acceleration of my country's economic development and urbanization process, the total amount of concrete blocks, waste bricks and muck (hereinafter collectively referred to as "construction waste") produced in urban infrastructure construction and highway reconstruction and expansion is increasing day by day. Construction waste refers to the spoils, waste materials and other wastes produced by construction units, construction units, new construction, reconstruction, expansion and demolition of various buildings, structures, pipe networks, etc., as well as residents' decoration of houses. The main components of construction waste are: bricks, concrete blocks, mortar, sand, stones, muck, waste steel wire, metal pipeline waste, wood chips, pl...

AI Technical Summary

Problems solved by technology

In the prior art, recycled construction waste aggregates have been used as materials for building highway bases, but either cement is used as a cementing material for stabilization, or only part of the recycled aggregates is added to crushed stone materials, and the Limestone and other natural gravel are the main materials, and some recycled aggregates are mainly concrete blocks in construction waste. The bricks in construction waste are discarded, resulting in a low utilization rate of bricks, and it is necessary to dispose of the construction waste. Separating bricks and concrete blocks, the process is more complicated; 0-4.75mm fine aggregates are mostly made of machine-made sand, but 50%-60% of fine aggregates such as muck and soil will be produced in the process of construction waste processing, such as Failure to utilize this part of the fine material will result in a low recycling rate of construction waste