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

A permeable concrete, multi-functional technology, which can be applied to the coagulation pavement, roads, roads and other directions of on-site paving, and can solve the problems of single use and low strength.

Pending Publication Date: 2021-09-14
THE HONG KONG POLYTECHNIC UNIV
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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, whic

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

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Embodiment 1～5

[0056] This application provides five carbon-fixing multifunctional high-strength permeable concrete pavements, the specific methods include:

[0057] 1. Take each raw material component according to the mass percentage of the raw materials in Table 1, mix cement, ultrafine siliceous powder and carbonized waste concrete powder, and stir vigorously for 5 minutes to obtain a mixture; mix the mixture, water and polycarboxylate Mix the acid water reducer to obtain the base layer slurry; mix and stir the base layer slurry, carbonized waste concrete fine aggregate and carbonized waste coarse aggregate for 2 minutes to prepare five base layer compositions, which are respectively marked as Example 1 to Example 5. Among them, the types of cement and ultrafine siliceous powder are shown in Table 1; the preparation parameters of carbonized waste concrete powder, carbonized waste concrete fine aggregate and carbonized waste coarse aggregate (waste raw material type, carbonization method, ...

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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...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/06C04B28/02C04B28/08C04B38/00C04B20/02C04B14/22C04B14/36E01C7/14
CPCC04B28/04C04B28/06C04B28/065C04B28/02C04B28/021C04B28/08C04B20/023C04B14/22C04B14/36C04B14/366E01C7/142C04B2111/0075C04B2111/00612C04B2111/00284C04B2111/00362C04B2111/00827C04B2111/00017C04B2201/52C04B18/146C04B18/16C04B18/142C04B2103/302C04B38/0041C04B14/062C04B14/305C04B14/308C04B38/00C04B2103/54
Inventor 陆建鑫申培亮潘智生
Owner THE HONG KONG POLYTECHNIC UNIV
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