Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sandstone gravel C60 low-creep concrete for bridge engineering
The invention belongs to the technical field of engineering materials, and particularly relates to sandstone gravel C60 low-creep concrete for bridge engineering. The technical key points are as follows: the concrete comprises the following components in percentage by mass: 11.37%-13.83% of Portland cement, 2.96%-3.79% of sintered superfine fly ash, 2.96%-3.79% of ground granulated blast furnace slag powder, 28.31%-28.69% of sand, 46.19%-46.81% of sandstone gravel, 5.5%-5.73% of water, 0.002%-0.013% of an internal curing agent and 0.016%-0.034% of a shrinkage type polycarboxylic acid high-performance water reducing agent. According to the invention, the purpose of reducing creep of the sandstone gravel C60 concrete is achieved by utilizing the super-superimposed effect among the components such as the fired fine fly ash and the ground granulated blast-furnace slag powder and utilizing the shrinkage-reducing and performance complementary effects of the internal curing agent and the shrinkage-reducing type polycarboxylic acid high-performance water reducing agent, and the application of the sandstone gravel in the bridge engineering low-creep concrete is realized.
本发明属于工程材料技术领域，具体涉及一种桥梁工程用砂岩碎石C60低徐变混凝土。其技术要点如下：包括如下质量比的各组分：硅酸盐水泥11.37%~13.83%，烧成超细粉煤灰2.96%~3.79%，磨细粒化高炉矿渣粉2.96%~3.79%，砂28.31%~28.69%，砂岩碎石46.19%~46.81%，水5.5%~5.73%，内养护剂0.002%~0.013%，减缩型聚羧酸系高性能减水剂0.016%~0.034%。本发明利用烧成细粉煤灰、磨细粒化高炉矿渣粉等组分间的超叠加效应，利用内养护剂与减缩型聚羧酸系高性能减水剂的减缩及性能互补作用，达到降低砂岩碎石C60混凝土徐变的目的，实现砂岩碎石在桥梁工程低徐变混凝土中的应用。
Sandstone gravel C60 low-creep concrete for bridge engineering
The invention belongs to the technical field of engineering materials, and particularly relates to sandstone gravel C60 low-creep concrete for bridge engineering. The technical key points are as follows: the concrete comprises the following components in percentage by mass: 11.37%-13.83% of Portland cement, 2.96%-3.79% of sintered superfine fly ash, 2.96%-3.79% of ground granulated blast furnace slag powder, 28.31%-28.69% of sand, 46.19%-46.81% of sandstone gravel, 5.5%-5.73% of water, 0.002%-0.013% of an internal curing agent and 0.016%-0.034% of a shrinkage type polycarboxylic acid high-performance water reducing agent. According to the invention, the purpose of reducing creep of the sandstone gravel C60 concrete is achieved by utilizing the super-superimposed effect among the components such as the fired fine fly ash and the ground granulated blast-furnace slag powder and utilizing the shrinkage-reducing and performance complementary effects of the internal curing agent and the shrinkage-reducing type polycarboxylic acid high-performance water reducing agent, and the application of the sandstone gravel in the bridge engineering low-creep concrete is realized.
本发明属于工程材料技术领域，具体涉及一种桥梁工程用砂岩碎石C60低徐变混凝土。其技术要点如下：包括如下质量比的各组分：硅酸盐水泥11.37%~13.83%，烧成超细粉煤灰2.96%~3.79%，磨细粒化高炉矿渣粉2.96%~3.79%，砂28.31%~28.69%，砂岩碎石46.19%~46.81%，水5.5%~5.73%，内养护剂0.002%~0.013%，减缩型聚羧酸系高性能减水剂0.016%~0.034%。本发明利用烧成细粉煤灰、磨细粒化高炉矿渣粉等组分间的超叠加效应，利用内养护剂与减缩型聚羧酸系高性能减水剂的减缩及性能互补作用，达到降低砂岩碎石C60混凝土徐变的目的，实现砂岩碎石在桥梁工程低徐变混凝土中的应用。
Sandstone gravel C60 low-creep concrete for bridge engineering
一种桥梁工程用砂岩碎石C60低徐变混凝土
ZENG GUODONG (Autor:in) / YANG TENGYU (Autor:in) / SHU BEN'AN (Autor:in) / LI YONGLING (Autor:in) / QIU BING (Autor:in) / GUO LIXIAN (Autor:in) / MA YUNLONG (Autor:in) / CHEN JIANGANG (Autor:in) / SUN TAO (Autor:in) / QIU WENJUN (Autor:in)
18.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Concrete bridge deck placed on gravel fill
| Engineering Index Backfile | 1963
the Effects of Gravel Quality on Creep and Shrinkage of Concrete
| British Library Conference Proceedings | 1998
Creep of Concrete in Bridge Standards
| ASCE | 2015
| Engineering Index Backfile | 1912
| Engineering Index Backfile | 1912