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A platform for research: civil engineering, architecture and urbanism
Low-shrinkage and low-viscosity C80 high-strength pump concrete and preparation method thereof
The invention provides low-shrinkage and low-viscosity C80 high-strength pump concrete. The high-strength pump concrete is prepared from the following raw materials in parts by weight: 375 to 480 parts of cement, 105 to 180 parts of a special multi-functional admixture for high-strength concrete, 720 to 825 parts of sand, 950 to 1060 parts of gravels, 108 to 145 parts of water and 8 to 15 parts ofa chemical additive composition. The invention further provides a preparation method of the high-strength pump concrete. By optimizing the technical parameters of the C80 high-strength concrete raw material and utilizing the reasonable compatibility of the special multi-functional admixture for high-strength concrete and the chemical additive composition, multiple effects are integrated, so thatthe early and later strength of the concrete is improved, the plastic viscosity of the concrete is reduced, the bubble area on the surface of hardened concrete is reduced, and the volume stability ofthe concrete is improved.
本发明提供了一种低收缩与低粘性C80高强泵送混凝土，该高强泵送混凝土由以下重量份数的原料组成：水泥375～480份、高强混凝土专用多功能掺合料105～180份、砂720～825份、碎石950～1060份、水108～145份、化学外加剂组合物8～15份。本发明还提供了上述高强泵送混凝土的制备方法。本发明旨在通过通过优化C80高强混凝土原料技术参数，利用高强混凝土专用多功能掺合料及化学外加剂组合物的合理配伍，集多种效应于一体，以提高混凝土的早、后期强度，降低混凝土的塑性黏度，减少硬化混凝土表面的气泡面积，改善混凝土的体积稳定性。
Low-shrinkage and low-viscosity C80 high-strength pump concrete and preparation method thereof
The invention provides low-shrinkage and low-viscosity C80 high-strength pump concrete. The high-strength pump concrete is prepared from the following raw materials in parts by weight: 375 to 480 parts of cement, 105 to 180 parts of a special multi-functional admixture for high-strength concrete, 720 to 825 parts of sand, 950 to 1060 parts of gravels, 108 to 145 parts of water and 8 to 15 parts ofa chemical additive composition. The invention further provides a preparation method of the high-strength pump concrete. By optimizing the technical parameters of the C80 high-strength concrete raw material and utilizing the reasonable compatibility of the special multi-functional admixture for high-strength concrete and the chemical additive composition, multiple effects are integrated, so thatthe early and later strength of the concrete is improved, the plastic viscosity of the concrete is reduced, the bubble area on the surface of hardened concrete is reduced, and the volume stability ofthe concrete is improved.
本发明提供了一种低收缩与低粘性C80高强泵送混凝土，该高强泵送混凝土由以下重量份数的原料组成：水泥375～480份、高强混凝土专用多功能掺合料105～180份、砂720～825份、碎石950～1060份、水108～145份、化学外加剂组合物8～15份。本发明还提供了上述高强泵送混凝土的制备方法。本发明旨在通过通过优化C80高强混凝土原料技术参数，利用高强混凝土专用多功能掺合料及化学外加剂组合物的合理配伍，集多种效应于一体，以提高混凝土的早、后期强度，降低混凝土的塑性黏度，减少硬化混凝土表面的气泡面积，改善混凝土的体积稳定性。
Low-shrinkage and low-viscosity C80 high-strength pump concrete and preparation method thereof
一种低收缩与低粘性C80高强泵送混凝土及其制备方法
WEN JINBAO (author) / TANG XIUSHENG (author) / DU ZHIQIN (author) / LIU XINGRONG (author) / ZHU YERAN (author) / XU ZHIFENG (author) / XIA QIANG (author) / CHEN GUOXIN (author) / WANG DONG (author) / LI JIAN (author)
2021-01-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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