Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Internal-curing high-performance cement concrete and preparation method thereof
The invention discloses internal-curing high-performance cement concrete and a preparation method thereof, and belongs to the technical field of building materials, the internal-curing high-performance cement concrete comprises cement, fly ash, mineral powder, gravel and a water reducing agent, and further comprises an internal curing agent, and the mixing amount of the internal curing agent is 0.18-0.3% of the mass of the cement; the internal curing agent is prepared from the following raw materials: 3-(isobutylene amide) propyl trimethyl ammonium chloride, an acrylic acid compound and modified zeolite. The internal curing high-performance cement concrete provided by the invention is simple in preparation process, and compared with common concrete, the internal curing agent is doped, so that the working performance of the concrete can be improved, the shrinkage rate of the concrete is reduced by more than 40%, the early cracking rate is reduced by more than 30%, the concrete curing only needs water spraying once every 3 days, and the curing cost is reduced by more than 60%; and a large amount of bridge floor maintenance cost can be saved after traffic service.
本发明公开了内养生高性能水泥混凝土及其制备方法，属于建筑材料技术领，一种内养生高性能水泥混凝土，包括水泥、粉煤灰、矿粉、碎石和减水剂，还包括内养护剂，所述内养护剂掺量为水泥质量的0.18‑0.3％；所述内养护剂以3‑(异丁烯酰胺)丙基三甲基氯化铵、丙烯酸类化合物以及改性沸石为原料制备而成。本发明提供的内养生高性能水泥混凝土制备工艺简单，相比普通混凝土，内养生剂的掺入能够改善混凝土的工作性能，使混凝土收缩率降低40％以上，早期开裂率降低30％以上，混凝土养护仅需3天洒水一次，养护成本降低60％以上，通车服役后能够节约大量桥面维修费用。
Internal-curing high-performance cement concrete and preparation method thereof
The invention discloses internal-curing high-performance cement concrete and a preparation method thereof, and belongs to the technical field of building materials, the internal-curing high-performance cement concrete comprises cement, fly ash, mineral powder, gravel and a water reducing agent, and further comprises an internal curing agent, and the mixing amount of the internal curing agent is 0.18-0.3% of the mass of the cement; the internal curing agent is prepared from the following raw materials: 3-(isobutylene amide) propyl trimethyl ammonium chloride, an acrylic acid compound and modified zeolite. The internal curing high-performance cement concrete provided by the invention is simple in preparation process, and compared with common concrete, the internal curing agent is doped, so that the working performance of the concrete can be improved, the shrinkage rate of the concrete is reduced by more than 40%, the early cracking rate is reduced by more than 30%, the concrete curing only needs water spraying once every 3 days, and the curing cost is reduced by more than 60%; and a large amount of bridge floor maintenance cost can be saved after traffic service.
本发明公开了内养生高性能水泥混凝土及其制备方法，属于建筑材料技术领，一种内养生高性能水泥混凝土，包括水泥、粉煤灰、矿粉、碎石和减水剂，还包括内养护剂，所述内养护剂掺量为水泥质量的0.18‑0.3％；所述内养护剂以3‑(异丁烯酰胺)丙基三甲基氯化铵、丙烯酸类化合物以及改性沸石为原料制备而成。本发明提供的内养生高性能水泥混凝土制备工艺简单，相比普通混凝土，内养生剂的掺入能够改善混凝土的工作性能，使混凝土收缩率降低40％以上，早期开裂率降低30％以上，混凝土养护仅需3天洒水一次，养护成本降低60％以上，通车服役后能够节约大量桥面维修费用。
Internal-curing high-performance cement concrete and preparation method thereof
内养生高性能水泥混凝土及其制备方法
LUO JUNHUI (Autor:in) / MO PENG (Autor:in) / CHANG ZHENCHAO (Autor:in) / PAN ZHU (Autor:in) / CHEN DEQIANG (Autor:in) / LIU HONGYAN (Autor:in) / TANG HAO (Autor:in)
05.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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