Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Roller compacted concrete for hydropower station engineering
The invention relates to the technical field of roller compacted concrete, and specifically to roller compacted concrete for hydropower station dam engineering. The roller compacted concrete is prepared from the following raw materials in parts by mass: 66 to 70 parts of water, 43.4 to 55.3 parts of cement, 117.3 to 138.2 parts of fly ash, 707 to 788 parts of artificial sand, 0 to 540 parts of large gravels, 774 to 885 parts of medium gravels, 486 to 542 parts of small gravels, 1.30 to 1.38 parts of a water reducing agent and 0.24 to 0.26 part of an air entraining agent. According to the roller compacted concrete disclosed by the invention, hydration heat is effectively reduced, early hydration heat of the roller compacted concrete is reduced, occurrence of a second exothermic peak is delayed, a retarding effect is achieved, temperature control of mass concrete is facilitated, and cracking after solidification is effectively avoided.
本发明涉及碾压混凝土的技术领域，具体涉及一种水电站大坝工程用碾压混凝土，由下列质量份的原料制成：水66～70份、水泥43.4～55.3份、粉煤灰117.3～138.2份、人工砂707～788份、大碎石0～540份、中碎石774～885份、小碎石486～542份、减水剂1.30～1.38份、引气剂0.24～0.26份。本申请的碾压混凝土有效降低的水化热，降低碾压混凝土早期水化热，延迟第二放热峰的出现，达到缓凝效果，利于大体积混凝土的温控，有效避免凝固后开裂。
Roller compacted concrete for hydropower station engineering
The invention relates to the technical field of roller compacted concrete, and specifically to roller compacted concrete for hydropower station dam engineering. The roller compacted concrete is prepared from the following raw materials in parts by mass: 66 to 70 parts of water, 43.4 to 55.3 parts of cement, 117.3 to 138.2 parts of fly ash, 707 to 788 parts of artificial sand, 0 to 540 parts of large gravels, 774 to 885 parts of medium gravels, 486 to 542 parts of small gravels, 1.30 to 1.38 parts of a water reducing agent and 0.24 to 0.26 part of an air entraining agent. According to the roller compacted concrete disclosed by the invention, hydration heat is effectively reduced, early hydration heat of the roller compacted concrete is reduced, occurrence of a second exothermic peak is delayed, a retarding effect is achieved, temperature control of mass concrete is facilitated, and cracking after solidification is effectively avoided.
本发明涉及碾压混凝土的技术领域，具体涉及一种水电站大坝工程用碾压混凝土，由下列质量份的原料制成：水66～70份、水泥43.4～55.3份、粉煤灰117.3～138.2份、人工砂707～788份、大碎石0～540份、中碎石774～885份、小碎石486～542份、减水剂1.30～1.38份、引气剂0.24～0.26份。本申请的碾压混凝土有效降低的水化热，降低碾压混凝土早期水化热，延迟第二放热峰的出现，达到缓凝效果，利于大体积混凝土的温控，有效避免凝固后开裂。
Roller compacted concrete for hydropower station engineering
一种水电站工程用碾压混凝土
LUO YUANYAO (Autor:in) / LU SHAN (Autor:in) / WEI MENGKANG (Autor:in) / DENG WENHAI (Autor:in) / ZHANG JIJIN (Autor:in) / WU QIAOHUAN (Autor:in)
17.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Study on the Properties of Roller Compacted Concrete in the Dam of Jinghong Hydropower Station
| British Library Conference Proceedings | 2011
Study on the Properties of Roller Compacted Concrete in the Dam of Jinghong Hydropower Station
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The In Situ Shear Strength of Roller Compacted Concrete in the Dam of Jinghong Hydropower Station
| Trans Tech Publications | 2012
| British Library Conference Proceedings | 2005