Recycled aggregate medium-dry hard concrete prepared by using building waste and preparation method of recycled aggregate medium-dry hard concrete
A dry hard concrete and construction waste technology, applied in the field of semi-dry hard concrete and its preparation, can solve the problems that the construction quality and service life cannot be guaranteed
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[0014] Below in conjunction with embodiment, the present invention is described in further detail and completeness:
[0015] Recycled aggregate semi-dry hard concrete prepared from construction waste. According to the "Common Concrete Mix Proportion Design Regulations" (JGJ55-2000), with the C30 concrete mix ratio as the benchmark, refer to the "Technical Specifications for Highway Cement Concrete Pavement Construction" (JTG F30-2003), "General Portland Cement" (GB 175 -2007) and "Technical Specifications for the Application of Fly Ash Concrete" (GBJ 146-90).
[0016] 1. Raw materials
[0017] It is composed of the following raw materials by weight, coarse aggregate 1200-1320, fine aggregate 580-620, gelling agent 320-420, water reducer and water, the gelling agent is cement and fly ash, cement accounts for 60-90% of the gelling agent, fly ash accounts for 10-40% of the gelling agent, the water reducing agent is 0.3-0.5% of the cement content, and the water is 150±10. The s...
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