Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-strength self-compacting concrete
The invention provides a preparation method of high-strength self-compacting concrete. The preparation method comprises the following steps: (1), weighing the following raw materials, by weight: 290-320 parts of cement, 70-85 parts of fly ash, 65-75 parts of silica fume, 650-750 parts of quartz sand, 700-800 parts of gravels, 25-35 parts of glass beads, 12-15 parts of a nano titanium dioxide/basalt stone powder composite material, 1.5-2 parts of redispersible polymer rubber powder, 1-1.2 parts of an epoxy silane coupling agent and 10-15 parts of an additive; and (2), uniformly mixing glass beads, redispersible polymer rubber powder and an epoxy silane coupling agent to obtain a pre-mixture; pouring cement, fly ash, silica fume and the nano titanium dioxide/basalt stone powder composite material into a stirrer, uniformly performing stirring, adding the pre-mixture, water and quartz sand, performing stirring for 120-150 seconds, then adding crushed stone and the additive, continuously performing stirring for 120-150 seconds, and uniformly performing stirring, so as to obtain the self-compacting concrete. The concrete prepared in the invention has the advantages of high strength, goodworking performances and excellent durability.
本发明提供了一种高强度自密实混凝土的制备方法，包括以下步骤：(1)称取以下重量份的原料：水泥290‑320份、粉煤灰70‑85份、硅灰65‑75份、石英砂650‑750份、碎石700‑800份、玻璃微珠25‑35份、纳米二氧化钛/玄武岩石粉复合材料12‑15份、可再分散聚合物胶粉1.5‑2份、环氧硅烷偶联剂1‑1.2份、外加剂10‑15份；(2)将玻璃微珠、可再分散聚合物胶粉、环氧硅烷偶联剂混合均匀，得预混合物；将水泥、粉煤灰、硅灰、纳米二氧化钛/玄武岩石粉复合材料倒入搅拌机中，搅匀，加入预混合物、水、石英砂，搅拌120‑150s，然后加入碎石、外加剂，继续搅拌120‑150s，搅匀，得自密实混凝土。本发明制备得到的混凝土具有较高的强度，工作性能好，并且耐久性优异。
Preparation method of high-strength self-compacting concrete
The invention provides a preparation method of high-strength self-compacting concrete. The preparation method comprises the following steps: (1), weighing the following raw materials, by weight: 290-320 parts of cement, 70-85 parts of fly ash, 65-75 parts of silica fume, 650-750 parts of quartz sand, 700-800 parts of gravels, 25-35 parts of glass beads, 12-15 parts of a nano titanium dioxide/basalt stone powder composite material, 1.5-2 parts of redispersible polymer rubber powder, 1-1.2 parts of an epoxy silane coupling agent and 10-15 parts of an additive; and (2), uniformly mixing glass beads, redispersible polymer rubber powder and an epoxy silane coupling agent to obtain a pre-mixture; pouring cement, fly ash, silica fume and the nano titanium dioxide/basalt stone powder composite material into a stirrer, uniformly performing stirring, adding the pre-mixture, water and quartz sand, performing stirring for 120-150 seconds, then adding crushed stone and the additive, continuously performing stirring for 120-150 seconds, and uniformly performing stirring, so as to obtain the self-compacting concrete. The concrete prepared in the invention has the advantages of high strength, goodworking performances and excellent durability.
本发明提供了一种高强度自密实混凝土的制备方法，包括以下步骤：(1)称取以下重量份的原料：水泥290‑320份、粉煤灰70‑85份、硅灰65‑75份、石英砂650‑750份、碎石700‑800份、玻璃微珠25‑35份、纳米二氧化钛/玄武岩石粉复合材料12‑15份、可再分散聚合物胶粉1.5‑2份、环氧硅烷偶联剂1‑1.2份、外加剂10‑15份；(2)将玻璃微珠、可再分散聚合物胶粉、环氧硅烷偶联剂混合均匀，得预混合物；将水泥、粉煤灰、硅灰、纳米二氧化钛/玄武岩石粉复合材料倒入搅拌机中，搅匀，加入预混合物、水、石英砂，搅拌120‑150s，然后加入碎石、外加剂，继续搅拌120‑150s，搅匀，得自密实混凝土。本发明制备得到的混凝土具有较高的强度，工作性能好，并且耐久性优异。
Preparation method of high-strength self-compacting concrete
一种高强度自密实混凝土的制备方法
TENG HONGJUN (Autor:in) / HU CHENGHUA (Autor:in)
30.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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