High-performance fiber concrete with a C50 strength grade and preparation method of high-performance fiber concrete
A high-performance fiber and strength grade technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of high brittleness, easy cracking, poor durability, etc., to increase cohesion, improve resistance Cracking, improving the effect of mechanical properties
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Embodiment 1
[0065] In the high-performance fiber concrete of C50 strength grade in this embodiment, the mixing ratio of each component in the high-performance fiber concrete is as follows: 330 parts of cement, 160 parts of tap water, 710 parts of river sand, 1030 parts of crushed stone, 130 parts of fly ash, 20 parts of rice husk ash, 5 parts of water reducer, 8 parts of shrinkage reducer, 14 parts of activator, 1.1 parts of cellulose fiber, 15 parts of carboxypropyl benzene polymer, and 1.7 parts of defoamer.
[0066] in:
[0067] Raw materials in terms of mass percent of the composite activator: 68% of sodium sulfate, 30% of calcium chloride, and 2% of triethanolamine.
[0068] The raw material of carboxylated styrene-butadiene polymer in mass percent is as follows:
[0069] Carboxylated styrene-butadiene emulsion 50%, water 48%, additives 2%.
[0070] The above-mentioned components are prepared concrete according to the following method:
[0071] 1) Add water reducer to 25% aqueous ...
Embodiment 2
[0079]In the high-performance fiber concrete of C50 strength grade in this embodiment, the mix ratio of each component in the high-performance fiber concrete is as follows: 350 parts of cement, 175 parts of tap water, 730 parts of river sand, 1010 parts of crushed stone, pulverized coal 90 parts of ash, 50 parts of rice husk ash, 7 parts of water reducing agent, 9 parts of shrinkage reducing agent, 12 parts of activator, 1.7 parts of cellulose fiber, 12 parts of carboxypropyl benzene polymer, and 1.8 parts of defoamer.
[0080] in:
[0081] Raw materials in terms of mass percent of the compound activator: 60% of sodium sulfate, 38% of calcium chloride, and 2% of triethanolamine.
[0082] The raw material of carboxylated styrene-butadiene polymer in mass percent is as follows:
[0083] Carboxylated styrene-butadiene emulsion 48%, water 50%, additives 2%.
[0084] The above-mentioned components are prepared concrete according to the following method:
[0085] 1) Add water red...
Embodiment 3
[0093] In the high-performance fiber concrete of C50 strength grade in this embodiment, the mixing ratio of each component in the high-performance fiber concrete is as follows: 342 parts of cement, 166 parts of tap water, 714 parts of river sand, 1027 parts of crushed stone, 92 parts of fly ash, 46 parts of rice hull ash, 5.7 parts of water reducing agent, 9.2 parts of shrinkage reducing agent, 13 parts of activator, 1.5 parts of cellulose fiber, 14 parts of carboxylated styrene-butadiene polymer, and 1.8 parts of defoamer.
[0094] in:
[0095] Raw materials in terms of mass percent of the composite activator: 65.5% of sodium sulfate, 33% of calcium chloride, and 1.5% of triethanolamine.
[0096] The raw material of carboxylated styrene-butadiene polymer in mass percent is as follows:
[0097] Carboxylated styrene-butadiene emulsion 49%, water 50%, additive 1%.
[0098] The above-mentioned components are prepared concrete according to the following method:
[0099] 1) Add ...
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