Waste concrete lightweight building block and preparation method thereof

Abstract

The invention relates to the field of geotechnical engineering, and relates to a waste concrete light building block which comprises the components in parts by weight based on dry basis based on 100 parts of raw materials: 40-60 parts of waste concrete powder, 10-40 parts of waste brick powder, 15-25 parts of cement and 10-25 parts of clay. The volume of polyphenyl granules is calculated accordingto the setting of dry density, and the dry density is designed to be 600 kg / m<3>-1200 kg / m<3>. Main raw materials are waste concrete powder, waste brick powder, clay and the like; due to the utilization of the waste concrete and the waste bricks, the generation of construction waste can be greatly reduced, the recycling of resources is realized, the environmental protection is facilitated, a large amount of manpower and material resources are saved, the cyclic utilization of the resources is realized, and the strategic requirements of sustainable development in China are met.

Description

technical field [0001] The invention relates to the field of geotechnical engineering, to a civil construction material, and to a preparation method of the civil construction material. Background technique [0002] With the acceleration of urbanization, urban construction and old city reconstruction will generate a large amount of construction waste, among which waste concrete, waste clay and waste bricks are the largest. How to use these construction waste is a major issue facing the construction industry. [0003] At present, my country's annual new building area is as high as about 30 billion square meters, and the newly generated waste concrete every year will also be a shocking figure. However, most of the waste concrete is not treated, but is transported to the suburbs or villages, open-air Stacking or landfilling consumes a lot of manpower and material resources, and damages the environment and causes pollution. [0004] The treatment of waste concrete and waste brick...

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Problems solved by technology

[0003] At present, my country's annual new building area is as high as about 30 billion square meters, and the newly generated waste concrete every year will also be a shocking figure. However, most of the waste concrete is not treated, but is transported to the suburbs or villages, open-air Stacking or landfilling consumes a lot of manpower and material resources, and damages the environment and causes pollution

[0004] The treatment of waste concrete and waste bricks in my country is mainly to make recycled aggregates from large-scale waste concrete and waste bricks to replace natural sand and gravel, which is difficult to handle and less utilized. Landfill treatment is generally carried out, and the same land excavation Most of the clay excavated from road excavation is also landfilled, causing a lot of waste of resources and environmental pollution. Waste concrete and waste bricks are not real garbage, but resources in the wrong place. How to use them reasonably? Turning waste into treasure has become a major research topic for researchers today

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