Modified rubber particle impact-resistant abrasion-resistant ultrahigh-toughness concrete and preparation method thereof
A modified rubber and ultra-high toughness technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problem of poor impact toughness and abrasion resistance, strong destructive force, and interface bonding ability Poor problems, to achieve the effect of improving impact toughness and abrasion resistance, improving impact toughness, and good working performance
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[0053] Examples 1~5
[0054] The modified rubber particle anti-abrasion ultra-high-toughness concrete described in Examples 1 to 5 uses dispersible rubber powder as an interface enhancer. The preparation method includes the following steps:
[0055] 1) Weigh the raw materials according to the proportions described in Table 1;
[0056] 2) Put the weighed machine-made sand, cement, silica fume and fly ash microbeads into the concrete mixer for premixing for 3 minutes, pour in the rubber particles and stir for 2 minutes, pour in water and water reducing agent and stir for 4 minutes, then add the compound expansion agent and stir for 2 minutes , Then uniformly add the mixed fiber and continue to stir for 3 minutes; add the dispersible rubber powder and stir for 1 minute, and finally, after mold loading, vibrating, and molding, the surface is covered with an impermeable film. After 1 day, the mold is removed for standard maintenance to obtain the modification Rubber particles are resista...
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[0063] Examples 6-10
[0064] The modified rubber particle anti-abrasion ultra-high performance concrete described in Examples 6 to 10 uses water-based epoxy resin as an interfacial enhancer. The preparation method includes the following steps:
[0065] 1) Weigh each raw material according to the proportioning conditions described in Table 3;
[0066] 2) Add machine-made sand, cement, silica fume and fly ash microbeads to the concrete mixer for premixing for 3 minutes, pour in rubber particles and stir for 2 minutes, pour in water and water reducing agent and stir for 4 minutes, then add compound expansion agent and stir for 2 minutes, and then evenly Add the mixed fiber and continue to stir for 3 minutes; add the water-based epoxy resin and stir for 3 minutes, and finally, after mold loading, vibrating, and molding, the surface is covered with an impermeable film. After 1 day, the mold is removed for standard curing, and the modified rubber particles are obtained. Grinding ultra-hi...
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