A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-performance quick-setting early-strength concrete and preparation method thereof
The invention relates to high-performance quick-setting early-strength concrete and a preparation method thereof.The concrete is prepared from a concrete mixture, and the mixture comprises water, cement, silicon powder, slag, medium sand, recycled aggregate, a water reducing agent, a quick-setting agent, slaked lime powder, epoxy resin, nano-hydroxyapatite, modified graphene fibers and wollastonite powder. The preparation method comprises the following steps: 1, mixing the epoxy resin, the nano-hydroxyapatite, the modified graphene fiber and the wollastonite powder, and uniformly stirring at 50-60 DEG C to obtain the reinforcing filler; step 2, uniformly mixing a water reducing agent and a quick-setting agent to obtain a mixed reagent; step 3, uniformly mixing cement, silicon powder, slag, slaked lime powder, reinforcing filler, a mixed reagent and water to obtain cement slurry; 4, adding the medium sand and the recycled aggregate into the cement slurry, and uniformly mixing to obtain a concrete mixture; and step 5, standing and curing the mixture to obtain the concrete. The quick-setting early-strength concrete has the effect of improving the later strength of the quick-setting early-strength concrete.
本申请涉及一种高性能快凝早强混凝土及其制备方法，混凝土由混凝土拌合料制成，拌合料包括水、水泥、硅粉、矿渣、中砂、再生骨料、减水剂、快凝剂、熟石灰粉、环氧树脂、纳米羟基磷灰石、改性石墨烯纤维和硅灰石粉末。制备方法为：步骤一，将环氧树脂、纳米羟基磷灰石、改性石墨烯纤维和硅灰石粉末混合，在50‑60℃下搅拌均匀，得到补强填料；步骤二，将减水剂和快凝剂混合均匀得到混合试剂；步骤三，将水泥、硅粉、矿渣、熟石灰粉、补强填料、混合试剂和水混合均匀得到水泥浆液；步骤四，将中砂、再生骨料加入水泥浆液中混合均匀，获得混凝土拌合料；步骤五，将拌合料静置养护后得到混凝土。本申请具有提升快凝早强混凝土的后期强度的效果。
High-performance quick-setting early-strength concrete and preparation method thereof
The invention relates to high-performance quick-setting early-strength concrete and a preparation method thereof.The concrete is prepared from a concrete mixture, and the mixture comprises water, cement, silicon powder, slag, medium sand, recycled aggregate, a water reducing agent, a quick-setting agent, slaked lime powder, epoxy resin, nano-hydroxyapatite, modified graphene fibers and wollastonite powder. The preparation method comprises the following steps: 1, mixing the epoxy resin, the nano-hydroxyapatite, the modified graphene fiber and the wollastonite powder, and uniformly stirring at 50-60 DEG C to obtain the reinforcing filler; step 2, uniformly mixing a water reducing agent and a quick-setting agent to obtain a mixed reagent; step 3, uniformly mixing cement, silicon powder, slag, slaked lime powder, reinforcing filler, a mixed reagent and water to obtain cement slurry; 4, adding the medium sand and the recycled aggregate into the cement slurry, and uniformly mixing to obtain a concrete mixture; and step 5, standing and curing the mixture to obtain the concrete. The quick-setting early-strength concrete has the effect of improving the later strength of the quick-setting early-strength concrete.
本申请涉及一种高性能快凝早强混凝土及其制备方法，混凝土由混凝土拌合料制成，拌合料包括水、水泥、硅粉、矿渣、中砂、再生骨料、减水剂、快凝剂、熟石灰粉、环氧树脂、纳米羟基磷灰石、改性石墨烯纤维和硅灰石粉末。制备方法为：步骤一，将环氧树脂、纳米羟基磷灰石、改性石墨烯纤维和硅灰石粉末混合，在50‑60℃下搅拌均匀，得到补强填料；步骤二，将减水剂和快凝剂混合均匀得到混合试剂；步骤三，将水泥、硅粉、矿渣、熟石灰粉、补强填料、混合试剂和水混合均匀得到水泥浆液；步骤四，将中砂、再生骨料加入水泥浆液中混合均匀，获得混凝土拌合料；步骤五，将拌合料静置养护后得到混凝土。本申请具有提升快凝早强混凝土的后期强度的效果。
High-performance quick-setting early-strength concrete and preparation method thereof
一种高性能快凝早强混凝土及其制备方法
SONG LIFENG (author) / YU CHANGHONG (author) / LAI JUNRONG (author) / LIN XICHANG (author) / CAI XINYING (author) / LIANG DABIN (author) / LI HONGMING (author) / MOU LIANMAO (author) / YU TING (author) / SONG GAOFENG (author)
2022-03-01
Patent
Electronic Resource
Chinese
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