Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete for underwater construction and preparation method thereof
The invention relates to concrete for underwater construction, which comprises 450-750 parts by mass of fine aggregate, 700-1050 parts by mass of coarse aggregate, 350-450 parts by mass of cement, 150-260 parts by mass of water, fly ash, mineral powder, silica fume, a polycarboxylate superplasticizer and a capsule slow-release flocculant, wherein the capsule slow-release flocculant comprises a polyacrylamide terpolymer and a capsule coating, the polyacrylamide terpolymer comprises an acrylamide structural unit, an acrylic acid structural unit and an allyl-A-D-galactopyranoside structural unit, and the molar ratio of the three structural units is (50-70): (15-25): (15-25); the capsule coat is prepared from an acrylic monomer, styrene, an acrylate monomer and a cross-linking agent. By adding the capsule slow-release flocculant of the concrete especially suitable for underwater construction into the concrete, the concrete has excellent dispersion resistance and flowability, can meet the requirements of underwater construction, and has excellent strength performance.
本申请涉及一种水下施工用混凝土，包括包括细集料450‑750质量份、粗集料700‑1050质量份、水泥350‑450质量份、水150‑260质量份，还包括粉煤灰、矿粉、硅灰、聚羧酸减水剂、胶囊缓释型絮凝剂；其中胶囊缓释型絮凝剂包括聚丙烯酰胺为三元共聚物和胶囊外衣，聚丙烯酰胺为三元共聚物包括丙烯酰胺结构单元、丙烯酸结构单元和烯丙基‑Α‑D‑吡喃半乳糖苷结构单元，三种结构单元的摩尔比例为(50‑70):(15‑25):(15‑25)；胶囊外衣由丙烯酸类单体、苯乙烯、丙烯酸酯类单体和交联剂制得。通过在混凝土中添加特别适用于水下施工的混凝土的胶囊缓释型絮凝剂，使得混凝土具有优异的抗分散性、流动性，使得混凝土能够能够满足水下施工的要求，并具有优异的强度性能。
Concrete for underwater construction and preparation method thereof
The invention relates to concrete for underwater construction, which comprises 450-750 parts by mass of fine aggregate, 700-1050 parts by mass of coarse aggregate, 350-450 parts by mass of cement, 150-260 parts by mass of water, fly ash, mineral powder, silica fume, a polycarboxylate superplasticizer and a capsule slow-release flocculant, wherein the capsule slow-release flocculant comprises a polyacrylamide terpolymer and a capsule coating, the polyacrylamide terpolymer comprises an acrylamide structural unit, an acrylic acid structural unit and an allyl-A-D-galactopyranoside structural unit, and the molar ratio of the three structural units is (50-70): (15-25): (15-25); the capsule coat is prepared from an acrylic monomer, styrene, an acrylate monomer and a cross-linking agent. By adding the capsule slow-release flocculant of the concrete especially suitable for underwater construction into the concrete, the concrete has excellent dispersion resistance and flowability, can meet the requirements of underwater construction, and has excellent strength performance.
本申请涉及一种水下施工用混凝土，包括包括细集料450‑750质量份、粗集料700‑1050质量份、水泥350‑450质量份、水150‑260质量份，还包括粉煤灰、矿粉、硅灰、聚羧酸减水剂、胶囊缓释型絮凝剂；其中胶囊缓释型絮凝剂包括聚丙烯酰胺为三元共聚物和胶囊外衣，聚丙烯酰胺为三元共聚物包括丙烯酰胺结构单元、丙烯酸结构单元和烯丙基‑Α‑D‑吡喃半乳糖苷结构单元，三种结构单元的摩尔比例为(50‑70):(15‑25):(15‑25)；胶囊外衣由丙烯酸类单体、苯乙烯、丙烯酸酯类单体和交联剂制得。通过在混凝土中添加特别适用于水下施工的混凝土的胶囊缓释型絮凝剂，使得混凝土具有优异的抗分散性、流动性，使得混凝土能够能够满足水下施工的要求，并具有优异的强度性能。
Concrete for underwater construction and preparation method thereof
水下施工用混凝土及其制备方法
SUN GUOWEN (Autor:in) / LIU ZHIYONG (Autor:in) / WANG FENGJUAN (Autor:in) / XU WENXIANG (Autor:in) / YANG HAITAO (Autor:in) / WU LIPENG (Autor:in) / GAO LIXIONG (Autor:in) / WANG CAIHUI (Autor:in) / ZHENG HAORUI (Autor:in) / LI YIFAN (Autor:in)
08.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Underwater concrete block structure and construction method thereof
| Europäisches Patentamt | 2023
Underwater concrete vibrating device and construction method thereof
| Europäisches Patentamt | 2021