Black light concrete for paving layer of bridge

Abstract

The present invention relates to building material and is especially one kind of black light concrete for paving layer of bridge. The black light concrete features its ingredients including cement; steel fiber, polypropylene fiber, acrylic fiber, carbon fiber or the mixture of steel fiber and polypropylene fiber; fine aggregate; light aggregate; UEA expanding agent; polymer; block coloring agentand water.All the ingredients are mixed homogeneously and the mixture is spread onto the bridge floor. The present invention has cement as basic material; light aggregate to replace partial or even all broken stone and river sand for reduced dead weight; fiber, polymer and expanding ingredient to form interpenetrating network structure resulting in raised wear resisting, crack resisting and penetration resisting performance; and black coloring agent to match the color of the other bridge parts.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a black lightweight concrete for bridge deck pavement mainly used for bridge deck pavement of various spans and different types, as well as maintenance and reinforcement of existing bridge decks. Background technique [0002] Cement concrete and asphalt concrete are the two most commonly used bridge deck paving materials. Among them, the cement concrete bridge deck pavement is heavy in weight, poor in wear resistance, easy to shrink and crack, short in service life, and high in repeated maintenance costs. In view of the above problems, at present, methods such as adding fibers and expansion agents are mainly used for modification. Although some results have been achieved, it cannot overcome its inherent shortcomings of heavy weight, poor driving comfort and unsightly appearance, especially unfavorable for long-span bridges and cities. Construction of bridges. [00...

AI Technical Summary

Problems solved by technology

Among them, the cement concrete bridge deck pavement is heavy in weight, poor in wear resistance, easy to shrink and crack, short in service life, and high in repeated maintenance costs

In view of the above problems, at present, methods such as adding fibers and expansion agents are mainly used for modification. Although some results have been achieved, it cannot overcome its inherent shortcomings of heavy weight, poor driving comfort and unsightly appearance, especially unfavorable for long-span bridges and cities. bridge construction

[0003] Although asphalt concrete has the advantages of beautiful appearance, comfortable driving, and good repair, its water stability and high temperature stability are poor, it is prone to rutting, high cost, not durable, and it is heavy, which affects the bearing capacity of bridges and is not conducive to the construction of long-span bridges. Construction and restoration of built bridges