Red mud-based solid waste pervious concrete as well as preparation method and application thereof

Abstract

The invention relates to the technical field of pervious concrete, in particular to red mud-based solid waste pervious concrete as well as a preparation method and application thereof. The pervious concrete is prepared from the following raw materials in parts by weight: 55-75 parts of red mud, 5-20 parts of blast furnace slag, 0-30 parts of carbide slag, 0-25 parts of alkaline residue, 1-5 partsof a saltpetering inhibitor, 1-9 parts of a cementing agent, 0.5-1 part of a water reducing agent, 0.1-1 part of a reinforcing agent and 30-50 parts of aggregate. The red mud cooperates with various solid wastes such as the slag, the carbide slag and the alkaline residues, so that the prepared red mud-based pervious concrete material has excellent properties such as air permeability, water permeability, light weight, high bearing capacity, high heat dissipation and wear resistance. Besides, the alkaline components (Na and Ca) are fixed by the saltpetering inhibitor in a chemical bonding manner, so that leaching of the alkaline components in the red mud-based pervious concrete can be effectively controlled, and the problem that the red mud-based solid waste pervious concrete is prone to saltpetering and weathering is solved.

Description

Technical field [0001] The invention relates to the technical field of permeable concrete, in particular to a red mud-based solid waste permeable concrete and a preparation method and application thereof. Background technique [0002] Disclosure of the background information is only intended to increase the understanding of the overall background of the present invention, and is not necessarily regarded as an acknowledgement or in any form suggesting that the information constitutes the prior art known to those of ordinary skill in the art. [0003] In recent years, the concept of "sponge city" has been repeatedly mentioned in urban planning and construction. It meets the requirements of urban development and residential needs, and the government and scholars from all walks of life have attached great importance to it. As an important part of the construction of sponge cities, permeable concrete has important functions such as rapid infiltration of rainwater on urban roads, reducin...

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Problems solved by technology

In the field of building materials, red mud is mainly used in the production of cement, blocks, and pavement materials. However, due to problems such as difficult dehydration and high alkalinity, the current application rate is less than 1%.

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