Hybrid fiber concrete prefabricated laminated slab and preparation method thereof

Abstract

The invention discloses a hybrid fiber concrete prefabricated laminated slab and a preparation method thereof. The hybrid fiber concrete prefabricated laminated slab comprises a bottom plate fiber concrete layer, and a post-pouring layer is arranged on the bottom plate fiber concrete layer; the bottom fiber concrete layer comprises cement, fly ash, silica fume, sand, a water reducing agent, steelfibers, polyvinyl alcohol fibers and water; the post-pouring layer is formed by pouring common reinforced concrete; the hybrid concrete slab is arranged in the lower tension area, the advantages of high tensile strength and good ductility of the hybrid concrete are effectively played, the upper part is pressed by adopting the common reinforced concrete, and the characteristics of the two types ofconcrete are fully played; the steel fibers are doped into the hybrid fiber concrete so that the later strength and toughness of the concrete are effectively enhanced; the thickness of the laminated slab is reduced, the self-weight is reduced and the cost is saved, the manufacturing process is simple, and application and popularization are facilitated.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a hybrid fiber concrete prefabricated laminated board and a preparation method thereof. Background technique [0002] Large-scale infrastructure has very high requirements on the construction and durability of concrete. Since these projects are located in the wild and the construction conditions are harsh, the efficiency and continuity of the project schedule have become the most critical issues. Nowadays, labor costs are rising, skilled workers in concrete technology are becoming less and less, and traditional vibrating and compacting labor will cause noise disturbance to residents and may cause troubles. All these problems are expected to improve the performance of concrete. Bigger breakthrough. Relying on its own excellent construction performance, prefabricated laminated panels can be manufactured in batches and complete sets like industrial production, so as to s...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a hybrid fiber-reinforced concrete prefabricated laminated slab and its preparation method to solve the problem of deformation of ordinary concrete laminated slabs in the prior art due to their poor strength and large spans , not conducive to construction

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