Use of construction waste in concrete

By activating, repairing, and grafting recycled coarse aggregates from construction waste, and combining them with redispersible latex powder, the problem of insufficient strength in construction waste concrete has been solved, enabling the application of high-strength, high-impermeability, and high-frost-resistant concrete.

CN118619637BActive Publication Date: 2026-06-19ZHENGDING HENGTONG CONCRETE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHENGDING HENGTONG CONCRETE CO LTD
Filing Date
2024-05-24
Publication Date
2026-06-19

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Abstract

This application relates to the field of recycled concrete technology, specifically disclosing the application of construction waste in concrete. The concrete is mainly composed of the following raw materials by weight: 75-85 parts water, 125-145 parts cement, 50-60 parts fly ash, 10-20 parts silica fume, 20-30 parts gypsum, 545-580 parts recycled coarse aggregate from construction waste, 455-485 parts fine aggregate, 5-7 parts redispersible latex powder, and 2-4 parts water-reducing agent; the recycled coarse aggregate is obtained by activating, repairing, and grafting construction waste. This application applies construction waste to concrete, realizing waste recycling, reducing environmental pollution and resource waste, and the resulting concrete has advantages such as high compressive strength, high flexural strength, good impermeability, and good frost resistance, meeting market demands.
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