Seawater coral aggregate concrete building block with internal FRP rib skeleton and construction method

Abstract

The invention discloses a seawater coral aggregate concrete building block with an internal FRP rib skeleton and a construction method, and belongs to the fields of novel building materials and structures. The concrete building block comprises a coral aggregate seawater concrete building block body and the FRP rib skeleton arranged on the layer face which is 1 / 2 of the thickness of the coral aggregate seawater concrete building block body; and the coral aggregate seawater concrete building block body is in a square shape, the four corners of the square are provided with circular arc edges of spliced reserved hole channels, the exposed ends of FRP ribs are located at the centers of the circular arc edges of the spliced reserved hole channels, and butt-joint grooves used for splicing the ends of the FRP ribs into a whole are preformed in the ends of the exposed ribs. The butt-joint grooves are preformed in the ends of the ribs, a whole is formed through resin glue, the four external extending FRP skeleton ends of the building block are flexibly fixed into a whole through fiber bandages, lastly the circular reserved holes are compacted through coral mortar mixed with carbon fibers, and all the building blocks are formed into a whole. The structure is simple, local raw materials can be obtained, the durability of the materials is good, and the economic benefit is outstanding.

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. However, for the high-temperature and high-humidity South China Sea marine engineering, due to the lack of ordinary concrete raw materials on the island, the current method is to prefabricate the concrete blocks on land. , and then transported to the island construction site, the transportation cost is high and the use is inconvenient. For example, the patent No. CN103046559A discloses a kind of interlocking protective concrete block with built-in steel reinforcement skeleton applied in ocean engineering. It adopts concrete block body and interlocking steel reinforcement skeleton. Th...

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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 South China Sea islands, 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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