Energy-saving and environment-friendly concrete and preparation process thereof

Abstract

The invention relates to the field of concrete, and particularly discloses energy-saving and environment-friendly concrete which is prepared from the following raw materials in parts by weight: 80-140 parts of cement, 45-70 parts of water, 0.5-2 parts of a water reducing agent, 10-30 parts of gravel, 0.5-1 part of hydrogenated polyisobutene, 300-400 parts of building waste residues, 30-45 parts of chaff powder, 2-8 parts of compound bacteria, 10-25 parts of a calcium type microporous molecular sieve and 5-10 parts of a wear-resistant agent, pEEK resin powder and mica powder. The preparation process of the energy-saving and environment-friendly concrete comprises the following preparation steps: step 1, preparing fermentation waste residues; step 2, uniformly mixing and stirring the fermentation waste residues, the water, the cement, the water reducing agent, the gravel, the hydrogenated polyisobutene, the calcium type microporous molecular sieve and the wear-resistant agent according to the formula ratio to obtain the concrete. By effectively utilizing solid waste resources, the concrete with good compressive strength and excellent wear resistance can be prepared.

Description

technical field [0001] This application relates to the field of concrete, more specifically, it relates to an energy-saving and environment-friendly concrete and its preparation process. Background technique [0002] Concrete is still the most widely used building material at present, but with the rapid development of infrastructure, more and more old buildings demolished will produce a large number of waste concrete blocks, but there are not many effective treatment methods for these waste concrete, the traditional The treatment method is mainly to be transported to the outskirts for open-air storage or landfill. This method will bring high treatment costs and cause a series of environmental problems, which will not only cause environmental pollution, but also cause waste of resources. Therefore, the development and utilization of waste concrete is imminent. . [0003] In the concrete industry, because most of the concrete obtained from waste concrete has low compressive s...

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Problems solved by technology

[0004] In sponge cities, permeable concrete is mostly used as permeable floor to enhance the heat and moisture exchange between the surface and the air and adjust the urban climate. The permeable floor needs to withstand the friction of passing pedestrians and vehicles for a long time, but the inventors did not found that the permeable concrete made of waste concrete not only has poor strength, but also has poor wear resistance

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