Proportioning method for novel C25 concrete applied to downhole floor pouring

Abstract

The invention relates to a proportioning method for novel C25 concrete applied to downhole floor pouring. The method is characterized in that the concrete is cement, gravity-separated iron tailings, yellow sand, cobblestone, water, a high-efficiency water reducer and steel fibers in a mass ratio of (394-400): (410-418): (380-385): (791-800): (220-225): (4-5): (55-60). The method can effectively reduce the usage amount of yellow sand in a reasonable range, so the cost of support production is lowered; and at the same time, the high-performance water reducer and large-proportion steel fibers areintroduced to improve the deformation resistance, compressive strength, abrasion resistance, toughness, impact strength and durability of the concrete.

Description

technical field [0001] The invention relates to a concrete proportioning method, in particular to a novel C25 concrete proportioning method for underground floor pouring, and belongs to the technical field of concrete preparation methods. Background technique [0002] In the production process of underground mines, blasting is required to recover ore resources. Potholes and unevenness often appear on the floor of the roadway after blasting. If the floor is not poured in time, the consumption of spare parts such as tires for underground shoveling equipment will be aggravated, and floor pouring is mainly Concrete using C25 has higher requirements on the compressive strength of concrete. Generally, in the proportion used in the production of C25 concrete, too much yellow sand will lead to increased production costs, and too low yellow sand will affect the compressive strength of concrete. In the gravity separation process of the beneficiation process, the properties of the cast...

AI Technical Summary

Problems solved by technology

[0002] In the production process of underground mines, blasting is required to recover ore resources. Potholes and unevenness often appear on the floor of the roadway after blasting. If the floor is not poured in time, the consumption of spare parts such as tires for underground shoveling equipment will be aggravated, and floor pouring is mainly Concrete using C25 has higher requirements on the compressive strength of concrete. Generally, in the proportion used in the production of C25 concrete, too much yellow sand will lead to increased production costs, and too low yellow sand will affect the compressive strength of concrete.

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