Underwater non-diffusion concrete and preparation method thereof

Abstract

The invention discloses an underwater non-diffusion concrete and a preparation method thereof, and relates to the technical field of concrete. The underwater non-diffusion concrete is made of the following raw materials in parts by weight: 410-450 parts of cement, 830-860 parts of sand, 870-920 parts of stone, 200-210 parts of water, 10-15 parts of air-entraining agent, 5-10 parts of ammonium chloride, 1-5 parts of triethanolamine, 1-5 parts of rust inhibitor, 8-14 parts of silica fume, 1-3 parts of flocculant, 1-3 parts of water reducer; it has the advantage of being able to inhibit the phenomenon of non-diffusion of concrete under water.

Description

technical field [0001] The present invention relates to the technical field of concrete, more particularly, it relates to underwater non-diffusion concrete and a preparation method thereof. Background technique [0002] So far, concrete is still one of the most important and most used building materials in underwater engineering, and the performance of concrete will directly affect the quality and progress of underwater engineering. [0003] There are usually two types of traditional underwater construction methods for concrete: one is to drain the water after the cofferdam. The construction of concrete is the same as that of the land, and there are disadvantages such as large amount of preliminary engineering, high engineering cost and long construction period; the other is to use special The construction equipment separates the concrete from the ambient water, and sends the concrete mixture directly to the underwater engineering part. These construction methods make the c...

AI Technical Summary

Problems solved by technology

These construction methods make the concrete mixture vulnerable to water scouring, resulting in severe segregation of materials, loss of cement, decline in concrete quality, and environmental pollution; therefore, underwater non-dispersible concrete came into being. When underwater non-dispersible concrete is used in construction For bridges or dams, after the concrete pouring is completed, part of the concrete is above the water level, and part of the concrete is below the water level. When the underwater non-dispersible concrete is applied in areas with large temperature differences between day and night, the temperature will experience a temperature change from zero to zero during the concrete solidification process. The transformation of up-minus-upper zero makes underwater non-dispersible concrete prone to more serious efflorescence

Images