Underwater anti-dispersive concrete

Abstract

The invention relates to underwater anti-dispersive concrete, and belongs to the field of concrete. The concrete comprises stones I with a particle size of 9-10 mm, stones II with a particle size of 7-8 mm, stones III with a particle size of 5-6 mm, sand I with a particle size of 3.5-4.5 mm, and sand II with a particle size of 1.5-2.5 mm. The underwater concrete provided by the invention has excellent anti-dispersive performance which cannot be achieved by prior underwater concrete.

Description

technical field [0001] The invention relates to an underwater anti-dispersion concrete, which belongs to the field of concrete. Background technique [0002] Concrete that is mixed in a dry place and poured and hardened underwater is called underwater concrete. Although concrete can be solidified and hardened underwater, the pouring quality is poor. Therefore, only in the case of last resort, or in the underwater part of some secondary buildings, the method of underwater pouring is adopted. The requirements for underwater pouring concrete are relatively high, and must have the characteristics of underwater non-separation, self-compacting, low bleeding and retarding. [0003] However, the 21st century is the century of ocean development, and the frequency of concrete underwater construction will increase. Therefore, it is very necessary to study underwater concrete. Contents of the invention [0004] The invention makes the underwater concrete have the excellent anti-disp...

AI Technical Summary

Problems solved by technology

Although concrete can be solidified and hardened underwater, the pouring quality is poor. Therefore, only in unavoidable situations, or in the underwater part of some secondary buildings, the method of underwater pouring is adopted.

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