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Roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value and preparation method thereof
The invention discloses roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value, which is prepared from the following components in parts by mass: 60 to 150 parts of low-heat Portland cement, 60 to 110 parts of natural pozzolanic powder, 1100 to 1800 parts of low-elastic modulus coarse aggregate, 600 to 1000 parts of common fine aggregate, 1 to 1.7 parts of naphthalene-based high-efficiency water reducing agent, 0.05 to 0.2 part of high-efficiency air entraining agent, 0.8 to 2.3 parts of shrinkage compensating agent and 80 to 100 parts of water. The invention also discloses a preparation method of the roller compacted concrete. According to the roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value and the preparation method thereof, the problem that the technical indexes of the existing roller compacted concrete are difficult to meet the requirements of damming in high-cold and high-altitude areas on the roller compacted concrete is solved.
本发明公开了低温升、低弹模、高极限拉伸值碾压混凝土，按质量份数，由以下组分组成：低热硅酸盐水泥60‑150份，天然火山灰质粉料60‑110份，低弹性模量粗骨料1100‑1800份，普通细骨料600‑1000份，以萘系高效减水剂1‑1.7份，高效引气剂0.05‑0.2份，收缩补偿剂0.8‑2.3份，水80‑100份。本发明还公开了上述碾压混凝土的制备方法。本发明的低温升、低弹模、高极限拉伸值碾压混凝土及其制备方法解决了现有碾压混凝土技术指标很难满足高寒高海拔地区筑坝对碾压混凝土的要求的问题。
Roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value and preparation method thereof
The invention discloses roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value, which is prepared from the following components in parts by mass: 60 to 150 parts of low-heat Portland cement, 60 to 110 parts of natural pozzolanic powder, 1100 to 1800 parts of low-elastic modulus coarse aggregate, 600 to 1000 parts of common fine aggregate, 1 to 1.7 parts of naphthalene-based high-efficiency water reducing agent, 0.05 to 0.2 part of high-efficiency air entraining agent, 0.8 to 2.3 parts of shrinkage compensating agent and 80 to 100 parts of water. The invention also discloses a preparation method of the roller compacted concrete. According to the roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value and the preparation method thereof, the problem that the technical indexes of the existing roller compacted concrete are difficult to meet the requirements of damming in high-cold and high-altitude areas on the roller compacted concrete is solved.
本发明公开了低温升、低弹模、高极限拉伸值碾压混凝土，按质量份数，由以下组分组成：低热硅酸盐水泥60‑150份，天然火山灰质粉料60‑110份，低弹性模量粗骨料1100‑1800份，普通细骨料600‑1000份，以萘系高效减水剂1‑1.7份，高效引气剂0.05‑0.2份，收缩补偿剂0.8‑2.3份，水80‑100份。本发明还公开了上述碾压混凝土的制备方法。本发明的低温升、低弹模、高极限拉伸值碾压混凝土及其制备方法解决了现有碾压混凝土技术指标很难满足高寒高海拔地区筑坝对碾压混凝土的要求的问题。
Roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value and preparation method thereof
低温升、低弹模、高极限拉伸值碾压混凝土及其制备方法
WU WENBO (author) / QUE PEIZHONG (author) / HU WEI (author) / ZHANG YONG (author) / CHENG XUEJUN (author) / FAN ZHIYONG (author) / ZHANG LIANG (author)
2024-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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