Anti-shock and anti-abrasion concrete for hydropower engineering and preparation method of anti-shock and anti-abrasion concrete

Abstract

The invention discloses concrete with high shock and abrasion resistant capacity for hydropower engineering. The concrete is prepared from the following raw materials in parts by weight: 30-50 parts of yellow sand, 3-5 parts of blast furnace slag powder, 15-25 parts of fly ash, 5-10 parts of silica powder, 30-50 parts of cement, 10-15 parts of potassium feldspar powder, 10-15 parts of medium sand,2-4 parts of kaoline, 3-5 parts of anhydrite, 3-5 parts of fibers, 3-5 parts of high-strength steel-wire-like fibers, 2-4 parts of aluminum nitride, 1-3 parts of mullite, 0.4-0.6 part of hydroxyethylmethylacrylate, 0.1-0.3 part of zinc acetate, 2-4 parts of rubber powder, 3-5 parts of styrene, 2-4 parts of resorcinol, 0.1-0.3 part of lauryl sodium sulfate, 5-10 parts of a plasticizer, 4-6 partsof triethanolamine, 6-8 parts of a nano material, and 2-4 parts of a water reducer. The concrete has the excellent anti-shock and anti-abrasion properties, air shrinkage deformation of the concrete iseffectively lowered, and thus the anti-cracking capacity of the concrete for the hydropower engineering is improved.

Description

technical field [0001] The invention relates to the technical field of hydropower operation and maintenance and hydropower construction, in particular to an impact-resistant and wear-resistant concrete for hydropower engineering and a preparation method thereof. Background technique [0002] Concrete usually uses cement as the cementitious material, sand and stone as aggregates, mixed with water (may contain admixtures and admixtures) in a certain proportion, and the cement concrete obtained by mixing is also called ordinary concrete. , low energy consumption, good durability, cheap price, and can be combined with steel to make various load-bearing structures, it is the most widely used building material in contemporary times and plays a very important role in the development of human society. [0003] Ordinary concrete generally refers to the artificial concrete made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral...

AI Technical Summary

Problems solved by technology

[0005] However, the erosion, wear and cavitation damage of hydraulic engineering structures by high-speed water flow, sandy water flow, and moving water flow have always been common damage methods for hydraulic discharge structures such as overflow dams, flood discharge tunnels, sluice gates, and floor plates. It has always been a long-term concern in water conservancy and hydropower construction and needs to be properly resolved

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