Carbon sequestration type multifunctional high-strength pervious concrete and preparation method thereof, and pavement

Abstract

The invention belongs to the technical field of building materials, and particularly relates to carbon sequestration type multifunctional high-strength pervious concrete and a preparation method thereof, and a pavement. The carbon sequestration type multifunctional high-strength pervious concrete provided by the invention comprises a base layer composition and a surface layer composition. The base layer composition is prepared from the following components in percentage by mass: 5 to 16% of cement, 1 to 4% of superfine siliceous powder, 1 to 6% of carbonized waste concrete powder, 5 to 15% of carbonized waste concrete fine aggregate, 60 to 75% of carbonized waste coarse aggregate, 1.5 to 3% of water and 0.3 to 0.8% of a polycarboxylate superplasticizer. The surface layer composition comprises the following components in percentage by mass: 5-16% of cement, 1-4% of superfine siliceous powder, 1-6% of carbonized waste concrete powder, 65-80% of glass aggregate, 1.5-3% of water, 0.3-0.8% of a polycarboxylate superplasticizer, 0.1-3% of a photocatalyst and 0.2-3% of pigment. The invention provides the concrete with high strength and high water permeability.

Description

technical field [0001] The application belongs to the technical field of building materials, and in particular relates to a carbon-fixing multifunctional high-strength permeable concrete, a preparation method thereof and a pavement. Background technique [0002] The use of pervious concrete is an effective way to deal with environmental issues such as enriching groundwater, reducing stormwater retention, and reducing the urban heat island effect. Especially in the southern part of my country, where there is abundant rain in summer, how to strengthen rainwater management and alleviate waterlogging is an urgent problem to be solved. Therefore, pervious concrete has been widely used in parking lots, drainage systems, park greenways and other fields. However, because pervious concrete contains a large number of pores, it usually has low compressive strength and durability. In recent years, due to the increasingly prominent functionality of sponge cities, there has been increas...

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Problems solved by technology

[0004] Based on this, the present application provides a carbon-fixing multifunctional high-strength permeable concrete and its preparation method and pavement, which have both high strength and high water permeability characteristics, effectively solving the problems of low strength and single use of existing permeable concrete

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