Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage low-hydration-heat ultra-high-performance concrete for circumferential reinforcement and preparation method of low-shrinkage low-hydration-heat ultra-high-performance concrete
The invention discloses low-shrinkage low-hydration-heat ultra-high performance concrete for circumferential reinforcement. The concrete is prepared from the following components in parts by weight: 500 to 700 parts of cement, 120 to 200 parts of silicon-aluminum mineral admixture, 120 to 240 parts of silica fume, 50 to 100 parts of ultrafine powder, 150 to 250 parts of internal curing aggregate, 8.4 to 11.8 parts of water reducing agent, 2 to 10 parts of thickening agent, 8 to 15 parts of hydration shrinkage regulating agent, 183 to 275 parts of steel fiber, 6 to 10 parts of basalt fiber, 175 to 238 parts of water and 1000 parts of fine aggregate. The ultra-high performance concrete has the advantages of no influence on the construction period, guarantee of the construction performance, extremely low shrinkage rate, low hydration heat, high tensile strength, good working performance, durability and the like; the method can be used for outer pouring reinforcement of existing annular components such as piers, has high economic and social values and is suitable for application and popularization.
本发明公开了一种用于环向加固的低收缩低水化热超高性能混凝土，各组分及其所占重量份数包括：水泥500～700份，硅铝质矿物掺合料120～200份，硅灰120～240份，超细粉50～100份，内养护骨料150～250，减水剂8.4～11.8份，增稠剂2～10份，水化收缩调控剂8～15份，钢纤维183～275份，玄武岩纤维6～10，水175～238份，细集料1000份。所述超高性能混凝土在不影响工期、保证施工性能的同时，兼顾极低的收缩率、低水化热、高抗拉强度、良好的工作性能和耐久性能等；可用于既有桥墩等环形构件的外浇筑加固等，具有较高的经济和社会价值，适合推广应用。
Low-shrinkage low-hydration-heat ultra-high-performance concrete for circumferential reinforcement and preparation method of low-shrinkage low-hydration-heat ultra-high-performance concrete
The invention discloses low-shrinkage low-hydration-heat ultra-high performance concrete for circumferential reinforcement. The concrete is prepared from the following components in parts by weight: 500 to 700 parts of cement, 120 to 200 parts of silicon-aluminum mineral admixture, 120 to 240 parts of silica fume, 50 to 100 parts of ultrafine powder, 150 to 250 parts of internal curing aggregate, 8.4 to 11.8 parts of water reducing agent, 2 to 10 parts of thickening agent, 8 to 15 parts of hydration shrinkage regulating agent, 183 to 275 parts of steel fiber, 6 to 10 parts of basalt fiber, 175 to 238 parts of water and 1000 parts of fine aggregate. The ultra-high performance concrete has the advantages of no influence on the construction period, guarantee of the construction performance, extremely low shrinkage rate, low hydration heat, high tensile strength, good working performance, durability and the like; the method can be used for outer pouring reinforcement of existing annular components such as piers, has high economic and social values and is suitable for application and popularization.
本发明公开了一种用于环向加固的低收缩低水化热超高性能混凝土，各组分及其所占重量份数包括：水泥500～700份，硅铝质矿物掺合料120～200份，硅灰120～240份，超细粉50～100份，内养护骨料150～250，减水剂8.4～11.8份，增稠剂2～10份，水化收缩调控剂8～15份，钢纤维183～275份，玄武岩纤维6～10，水175～238份，细集料1000份。所述超高性能混凝土在不影响工期、保证施工性能的同时，兼顾极低的收缩率、低水化热、高抗拉强度、良好的工作性能和耐久性能等；可用于既有桥墩等环形构件的外浇筑加固等，具有较高的经济和社会价值，适合推广应用。
Low-shrinkage low-hydration-heat ultra-high-performance concrete for circumferential reinforcement and preparation method of low-shrinkage low-hydration-heat ultra-high-performance concrete
一种用于环向加固的低收缩低水化热超高性能混凝土及其制备方法
LI YEQING (Autor:in) / YE XIAN (Autor:in) / SHANG DECHEN (Autor:in) / WANG JIAJUN (Autor:in) / YU SONGBAI (Autor:in) / CHEN MENGYI (Autor:in) / CHEN DONGDONG (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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