Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Early-strength dense concrete for shield segment and preparation method of early-strength dense concrete
The invention provides early-strength dense concrete for a shield segment and a preparation method of the early-strength dense concrete, and is characterized in that the early-strength dense concretecomprises the following raw materials in parts by weight: 100-130 parts of ordinary Portland cement, 60-80 parts of a composite slurry mineral admixture, 220-250 parts of sand, 340-380 parts of gravels, 0.5-1.5 parts of a water reducer, 48-63 parts of water, 0.5-1 part of a defoamer; and 0.24 to 0.64 part of a homogenizing agent. The concrete for preparing the shield segment has the characteristics of high fluidity, high compactness, excellent impermeability and the like. The early strength of the segment is remarkably improved, the anti-permeability and anti-cracking capacity is high, the steam curing time is shortened, the appearance condition of concrete is improved, and the working performance of the shield segment is guaranteed.
本发明提供一种用于盾构管片的早强密实混凝土及其制备方法，其特征在于，按重量份计，包括如下原料：普通硅酸盐水泥100～130份，复合浆状矿物掺合料60～80份，砂220～250份，碎石340～380份，减水剂0.5～1.5份，水48～63份，消泡剂0.5～1份；匀化剂0.24～0.64份。制成该盾构管片的混凝土的流动性好，密实度高，抗渗性能优异等特点。管片的早期强度显著提高，抗渗抗裂能力强，缩短了蒸养时间，改善混凝土的外观情况，保证了盾构管片的工作性能。
Early-strength dense concrete for shield segment and preparation method of early-strength dense concrete
The invention provides early-strength dense concrete for a shield segment and a preparation method of the early-strength dense concrete, and is characterized in that the early-strength dense concretecomprises the following raw materials in parts by weight: 100-130 parts of ordinary Portland cement, 60-80 parts of a composite slurry mineral admixture, 220-250 parts of sand, 340-380 parts of gravels, 0.5-1.5 parts of a water reducer, 48-63 parts of water, 0.5-1 part of a defoamer; and 0.24 to 0.64 part of a homogenizing agent. The concrete for preparing the shield segment has the characteristics of high fluidity, high compactness, excellent impermeability and the like. The early strength of the segment is remarkably improved, the anti-permeability and anti-cracking capacity is high, the steam curing time is shortened, the appearance condition of concrete is improved, and the working performance of the shield segment is guaranteed.
本发明提供一种用于盾构管片的早强密实混凝土及其制备方法，其特征在于，按重量份计，包括如下原料：普通硅酸盐水泥100～130份，复合浆状矿物掺合料60～80份，砂220～250份，碎石340～380份，减水剂0.5～1.5份，水48～63份，消泡剂0.5～1份；匀化剂0.24～0.64份。制成该盾构管片的混凝土的流动性好，密实度高，抗渗性能优异等特点。管片的早期强度显著提高，抗渗抗裂能力强，缩短了蒸养时间，改善混凝土的外观情况，保证了盾构管片的工作性能。
Early-strength dense concrete for shield segment and preparation method of early-strength dense concrete
一种用于盾构管片的早强密实混凝土及其制备方法
LI YUBO (Autor:in) / FANG JIAOLIN (Autor:in) / HE XINGYANG (Autor:in) / SU YING (Autor:in) / ZHANG QUANGANG (Autor:in) / ZHANG LUCHUAN (Autor:in) / LEI WUYI (Autor:in) / WANG YINGBIN (Autor:in) / YANG JIN (Autor:in) / ZENG SANHAI (Autor:in)
01.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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