Maritime work concrete and construction method

Abstract

The present invention discloses maritime-works concrete and a method for constructing the maritime-works concrete, which is mainly composed of cement, blast-furnace slag powder, fly ash, sand, crushed stone, additive and water, and has favorable durance, and can meet the requirements of the ocean large engineering project on the favorable durance of the concrete system, and can effectively avoid the corrosion of the steel bar during the service life, and can maintain the favorable appearance. The construction method of the maritime-works concrete comprises adopting the mixing factory-orientation production, the integrated material supply, the conveying pump and the tank cart to transport the concrete to the pouring site, and adopting the material rod to distribute the materials, thus can effectively control the feeding point, the feeding quantity and the feeding speed, and can guarantee the concrete to meet the working indexes required for the construction such as the uniformity and the stipulated collapsed degree while effectively improving the construction progress, and can promote the successful completion of the engineering project. The moisture-preservation and temperature-preservation maintenance is adopted for the initial maintenance of the beam body, thereby improving the initial strength, accelerating the turnover of the beam holder and the die, and reducing the beam-making cost.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a marine concrete and a construction method thereof. Background technique [0002] The durability of marine concrete structures is of paramount importance. Because the marine concrete structure is affected by various factors such as water quality, strong tide, typhoon, freezing and so on in the marine environment, the traditional ordinary concrete structure based on Portland cement is easily damaged and its durability is shortened. In recent years, many offshore durable buildings or structures have appeared abroad, such as the Fahd German sea embankment bridge between Saudi Arabia and Bahrain, the Akashi sea-crossing bridge in Japan, the Kadifu bay embankment project, and the Great Bear Strait project , Edmeler-Clay Bridge, etc. Most of these durable marine buildings or structures use durable marine concrete, that is, fly ash, slag, composite admixtures, silica fume and other ...

AI Technical Summary

Problems solved by technology

It is impossible to copy foreign durable concrete formulas for marine engineering to China. If foreign formulas are copied to China, not only the early strength of the concrete structure may not be suitable, but also it is not economical.

Moreover, the large-volume construction system of durable concrete for marine engineering in China is still in the stage of research and improvement, and a reasonable, economical and effective construction method for durable concrete for marine engineering has not yet been formed.

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