The flexure-resistant precast concrete pavement structure with steel fibers laid on the upper and lower layers

Abstract

The invention discloses a flexure-resistant prefabricated concrete pavement structure with steel fibers laid on the upper and lower layers, which comprises a common steel fiber laying layer, a prefabricated concrete matrix, a grid-like steel fiber laying layer and a ribbed steel plate on the bottom surface; a common steel fiber laying layer and a mesh The lattice steel fiber laying layer is laid in the prefabricated concrete matrix; the ribbed steel plate on the bottom surface is fixed at the bottom of the prefabricated concrete matrix. The flexure-resistant prefabricated concrete pavement structure with steel fibers laid on the upper and lower layers disclosed by the invention organically combines the steel fiber concrete base body with the ribbed steel plate on the bottom surface to form a high toughness, strong flexure-resistant prefabricated steel fiber concrete pavement structure.

Description

technical field [0001] The invention relates to a steel fiber concrete pavement structure, in particular to a flexure-resistant prefabricated concrete pavement structure in which steel fibers are laid on the upper and lower layers. Background technique [0002] Cement concrete pavement has been developed due to its advantages of high strength, high rigidity and good durability, but its disadvantages are also obvious. In order to adapt to the ever-increasing traffic volume, the thickness of the cement concrete pavement is continuously increased to improve the tensile and flexural properties of the bottom of the concrete pavement slab. Therefore, the usage of cement and water has increased, and the pollution caused by the production of cement has also increased. [0003] For this reason, many scholars and experts have been exploring ways to improve the tensile properties of concrete for a long time, and proposed steel fiber concrete. Compared with ordinary cement concrete, s...

AI Technical Summary

Problems solved by technology

However, during the construction of the traditional steel fiber concrete pavement, due to the messy and short steel fibers, there is a disadvantage that the steel fibers are easy to agglomerate when the concrete is mixed. On the other hand, the steel fibers are dense and will sink to the bottom during pouring. It cannot be evenly distributed in concrete, causing its performance to decline and affecting the quality of the pavement, which limits the application and promotion of steel fiber reinforced concrete pavement

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