Seawater coral aggregate concrete block with built-in frp reinforcement skeleton and its construction method

Abstract

A seawater coral aggregate concrete block with a built-in FRP tendon skeleton and a construction method thereof belong to the field of new building materials and structures. Concrete blocks include coral aggregate seawater concrete block body, FRP rib skeleton on the layer of 1 / 2 thickness of coral aggregate seawater concrete block body; coral aggregate seawater concrete block body is square, with four square corners It is the arc edge of the splicing reserved channel, the exposed end of the FRP tendon is located in the center of the arc edge of the reserved splicing channel, and the end of the exposed rib is prefabricated with a butt groove for splicing the ends of the FRP tendon as a whole. The prefabricated butt joint groove at the end of the rib is glued into a whole with resin, and then the ends of the extension FRP skeleton of the four blocks are flexibly fixed into a whole with fiber bandages, and finally the circular reserved hole is sealed with coral mortar doped with carbon fiber. It is dense, so that each block forms a whole. Its structure is simple, and the raw materials are obtained locally. The material itself has good durability and outstanding economic benefits.

Description

technical field [0001] The invention relates to a concrete block and a construction method, in particular to a seawater coral aggregate concrete block with a built-in FRP rib skeleton and a construction method suitable for chain protection in civil engineering and marine engineering. Background technique [0002] Concrete blocks have been widely used in civil engineering and marine engineering, but for high-temperature and high-humidity marine engineering, due to the lack of ordinary concrete raw materials on islands, the current method is to prefabricate concrete blocks on land. Transport to the island construction site again, its transportation cost is big, and use inconvenient. For example, the patent No. CN103046559A discloses a kind of interlocking protective concrete block with a built-in steel reinforcement skeleton applied in ocean engineering. The concrete block body and interlocking steel reinforcement skeleton are adopted. The interlocking reinforcement skeleton ...

AI Technical Summary

Problems solved by technology

However, this kind of concrete block is used in embankments, rivers and lakes, and under the impact of high humidity and water waves, the durability of the concrete block is obviously insufficient, and the steel bars are easily corroded, causing the steel bars to lose their binding ability and fail. , and concrete blocks require a large amount of aggregate, especially in the case of scarce resources in the island, the use of traditional ordinary concrete and ordinary mortar is neither economical nor environmentally friendly

[0003] Most of the concrete blocks at home and abroad are mostly aerated concrete blocks, that is, other admixtures are added to ordinary concrete blocks. There are almost no precedents for the innovation of starting with aggregates. Similarly, masonry mortar is used in general Standard sand will also cause problems such as complicated transportation and scarcity of resources

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