Recycled concrete precast floor slab structure and manufacturing method

Abstract

The invention relates to the field of precast fabricated type concrete structure buildings, in particular to a recycled concrete precast floor slab structure and a manufacturing method. The recycled concrete precast floor slab structure comprises two types of precast floor slabs, namely, a recycled concrete precast superimposed floor slab and a recycled concrete wholly-precast floor slab; and a precast layer part of the recycled concrete precast superimposed floor slab, and a tensile zone and a compressive zone part bearing less pressure of the recycled concrete wholly-precast floor slab are made of recycled concrete. When a concrete floor slab is stressed, mainly the upper part is subjected to pressure and the lower part is subjected to tensile force, the pressure on the lower part is mainly borne by steel bars, so that the lower part is made of recycled concrete having lower strength, the pressure on the upper part is borne by non-recycled concrete having higher strength, the advantages of mechanical properties of respective materials are fully exerted, and the practical stress requirements are met.

Description

technical field [0001] The invention relates to the field of prefabricated assembled concrete structure buildings, in particular to the structure and manufacturing method of two types of prefabricated slab floor slabs, a recycled concrete prefabricated laminated floor slab and a recycled concrete fully prefabricated floor slab. Background technique [0002] At present, with the development of my country's construction industry, the demand for cement and sand is also increasing, requiring a lot of mountain quarrying and digging sand, which has seriously damaged the ecological environment. Moreover, in recent years, high-quality natural aggregates in some areas of our country have been exhausted, and the materials used have to be transported long distances from other places, which not only increases the cost of construction products, but also aggravates environmental pollution. At the same time, the discharge of construction waste is increasing day by day. Such a large amount ...

AI Technical Summary

Problems solved by technology

Moreover, in recent years, the high-quality natural aggregates in some areas of our country have been exhausted, and the materials used have to be transported long distances from other places, which not only increases the cost of construction products, but also aggravates environmental pollution.

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