A construction waste recycled aggregate composite carrier pile and its preparation method

Abstract

The invention discloses a construction waste recycled aggregate composite carrier pile. The construction waste recycled aggregate composite carrier pile mainly comprises a rammed body, a pile body and a mattress layer, and is characterized in that the rammed body is formed by sorted construction waste on the outer layer and dry and hard recycled concrete on the inner layer; the pile body is composed of a pile casing above the rammed body, a steel reinforcement cage inside the pile casing and recycled concrete poured into the pile casing; the mattress layer is laid at the pile head position. A preparation method of the construction waste recycled aggregate composite carrier pile comprises the steps of smashing, screening, mixing, preparation of a pile moving machine in place, column-hammer tamping, pile casing follow-up hole formation, filler tamping, measurement of penetration of three drives, tamping and filling of the recycled concrete, placement of the steel reinforcement cage, filling of a finished pile, laying of the mattress layer and the like. The phenomenon that construction waste can not be used after old buildings are dismantled is solved, and the obtained composite carrier pile is good in expanded-base effect, high in single pile bearing capacity and small in deformation.

Description

technical field [0001] The invention relates to a construction waste recycled aggregate composite carrier pile and a preparation method thereof, belonging to the technical field of civil engineering. Background technique [0002] Concrete is the most widely used building material for human beings, and its theory and technology are becoming more and more mature. However, when a large amount of concrete is used, it has a negative impact on the living environment and ecological system. The annual production of demolished old buildings in my country reaches 150 million Tons, most of them are directly transported to the suburbs for stacking or simple landfill without any treatment, which not only requires a certain amount of transportation costs, but also occupies a large amount of land. If it is buried, the alkaline waste residue will cause secondary pollution of the land And expensive, and pollute the environment. [0003] With the development of the construction industry and th...

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Problems solved by technology

[0002] Concrete is the most widely used building material for human beings, and its theory and technology are becoming more and more mature. However, when a large amount of concrete is used, it has a negative impact on the living environment and ecological system. The annual production of demolished old buildings in my country reaches 150 million Tons, most of them are directly transported to the suburbs for stacking or simple landfill without any treatment, which not only requires a certain amount of transportation costs, but also occupies a large amount of land. If it is buried, the alkaline waste residue will cause secondary pollution of the land And cost a lot, and pollute the environment

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