Building solid waste regenerated composite roadbed filler and preparation method thereof

A technology of composite roadbed and roadbed filler, applied in the field of roadbed filling, can solve the problems of shortage of natural fillers, occupying land, polluting the environment, etc., and achieve the effects of controlling costs, reducing construction costs, and alleviating resource shortages

Inactive Publication Date: 2020-07-10
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem: The technical problem to be solved by the present invention is to provide a construction solid waste recycled composite roadbed filler, which uses slaked lime, fly ash and HEC to consolidate brick-concrete recycled aggregate and mud cake fill

Method used

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  • Building solid waste regenerated composite roadbed filler and preparation method thereof
  • Building solid waste regenerated composite roadbed filler and preparation method thereof
  • Building solid waste regenerated composite roadbed filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The construction solid waste recycled composite subgrade filler is composed of the following materials by mass percentage: 66.2% of brick-concrete recycled aggregate, 7.4% of mud cake filler, 1.8% of grade II calcareous slaked lime, 8.8% of grade II fly ash, 3.5% of HEC, water 12.3%; the mass percentage of water is determined through heavy-duty compaction tests according to the standard JTG E40-2007 "Highway Soil Test Regulations", the same below.

Embodiment 2

[0032] Construction solid waste recycled composite subgrade filler is composed of the following materials by mass percentage: brick-concrete recycled aggregate 22.0%, mud cake filler 51.4%, grade II calcareous slaked lime 4.3%, grade II fly ash 8.1%, HEC 0.5%, water 13.7%.

Embodiment 3

[0034] The construction solid waste recycling composite subgrade filler is composed of the following materials by mass percentage: 7.8% of brick-concrete recycled aggregate, 70.3% of mud cake filler, 1% of grade II calcareous slaked lime, 4.2% of grade II fly ash, 2.6% of HEC, water 14.1%.

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Abstract

The invention relates to a building solid waste recycled composite roadbed filler and a preparation method thereof, the roadbed filler is composed of the following materials by mass percentage: 5-70%of brick-concrete recycled aggregate, 5-75% of mud cake filler, 1-10% of slaked lime, 1-10% of fly ash, 0.5-4% of HEC, and 10-20% of water. The building solid waste recycled composite roadbed filler is high in strength and small in drying shrinkage, resource utilization of building solid waste such as waste clay bricks, waste concrete and mud cakes is achieved, the pollution problem of building solid waste landfill disposal and damage of natural filler exploitation to the environment are solved, and the current situation of shortage of natural resources is relieved.

Description

technical field [0001] The invention relates to a building solid waste recycled composite roadbed filler and a preparation method thereof, belonging to the technical field of roadbed filling. Background technique [0002] my country's urbanization process is in an accelerated stage. The rapid development of urban transformation and infrastructure construction also produces a large amount of construction solid waste, mainly including concrete, clay bricks and construction mud. The traditional treatment methods of construction solid waste are mostly landfill or open-air stacking, which will not only cause serious environmental pollution during the transportation and dumping process, but also cause continuous impact on the surrounding soil and water sources after landfill. [0003] On the other hand, the demand for high-quality soil, stone and other natural fillers in road construction in the process of urban renewal continues to increase. The price of natural filler has risen...

Claims

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Application Information

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IPC IPC(8): C04B24/38
CPCC04B40/0039C04B18/167C04B18/08C04B22/064C04B24/383
Inventor 张亚梅刘勇超陈春
Owner SOUTHEAST UNIV
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