Anti-disturbance concrete and preparation method thereof

Abstract

The invention provides an anti-disturbance concrete and a preparation method thereof. The raw material of the anti-disturbance concrete comprises the following components in part by weight: 100 parts of cement, 10 to 100 parts of fly ash, 1 to 40 parts of other mineral admixture, 1 to 10 parts of anti-disturbance additive, 1 to 6 parts of polycarboxylic acid water reducer, 190 to 480 parts of fine aggregate, 200 to 480 parts of broken stone and 30 to 80 parts of water. In the invention, the drawbacks of common concrete, such as low early strength and long initial setting and final setting time interval, can be overcome by optimizing a mixing ratio and using the polycarboxylic acid water reducer with high water reduction rate, high water holding performance and early strength as well as the mineral admixture and the anti-disturbance additive in combination; and the early disturbance resistance, cracking resistance and durability of concrete are improved greatly.

Description

technical field [0001] The invention relates to an anti-disturbance concrete and a preparation method thereof. The utility model belongs to the technical field of repair and reinforcement engineering of various disturbances such as traffic, bridges and roads. Background technique [0002] Concrete is currently the most widely used man-made building material in the world, and is widely used in highways, bridges, tunnels, underground and other projects. With the rapid development of the economy, the traffic flow in various places is also increasing, especially on the traffic roads in the western region of my country. Due to the influence of factors such as traffic volume, vehicle load tonnage and environmental erosion, bridge diseases are becoming more and more serious. , has been unable to meet the current traffic requirements, and urgently needs timely reinforcement and transformation. [0003] The traffic flow has a great impact on the early stage of repairing and strength...

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Problems solved by technology

[0005] In order to achieve the above purpose, the present invention solves the problems of low early strength, initial setting and final setting time of ordinary concrete by optimizing the ratio and using polycarboxylate water reducing agent with high water reducing rate and high water retention in combination with anti-disturbance admixture. Disadvantages such as long intervals; the use of fly ash, silica fume, mineral powder and other composite mineral admixtures improves the early anti-disturbance, crack resistance and durability of concrete

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