Anti-freezing concrete and preparation method thereof
A technology for concrete and cementitious materials, applied in the field of concrete, can solve the problems of excessive admixtures, complex process, difficult mixing ratio design, etc., and achieve the effects of excellent frost resistance, simple formula, and uncomplicated production process
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[0039] A kind of frost-resistant concrete, the raw materials used are composed of aggregate, cementitious material, water-reducing agent, waterproofing agent and water, calculated on the basis of each cubic meter of frost-resistant concrete:
[0040] The amount of raw material aggregate, cementitious material, water reducing agent and waterproofing agent used is as follows:
[0041]
[0042] The amount of raw material water used is 176kg, which is calculated according to the ratio of water: gelling material weight ratio of 0.44:1;
[0043] The aggregate is composed of 745kg medium sand and 1072kg crushed stone, the ratio of medium sand and crushed stone is calculated by weight ratio, medium sand: crushed stone is 1:1.44;
[0044] The medium sand has a fineness modulus of 2.7, a porosity of 42%, and an apparent density of 2610kg / m 3 , the particle size is 0.35-0.50mm;
[0045] The 1072kg gravel is mixed by 429kg of 5mm≤particle diameter D<20mm gravel and 643kg of 20mm≤part...
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