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A platform for research: civil engineering, architecture and urbanism
Composite cementing material system of ultra-high performance concrete and application method thereof
The invention relates to the technical field of civil engineering materials, in particular to a composite cementing material system of ultra-high performance concrete and an application method thereof. The system is characterized in that the composite cementing material system comprises cement, an active mineral admixture and a chemical activator, the active mineral admixture comprises fly ash, mineral powder, silica fume and nano aluminum oxide, and the chemical activator is sodium sulfate; the molar ratio of calcium oxide to silicon oxide in the composite cementing material system is (0.8-0.91): 1. The composite cementing material system has the advantages that the specific ratio of calcium oxide to silicon oxide is utilized so that the cementing material can exert good chemical compaction effect; the hydration reaction of the cementing material can be enhanced through the chemical activator (sodium sulfate), the chemical compaction effect of the cementing material can be well provided, and the obtained concrete can conform to the UHPC performance on the premise of significant cement unit consumption reducing.
本发明涉及土木工程材料技术领域，尤其是一种超高性能混凝土的复合胶凝材料体系及其应用方法，其特征在于：所述复合胶凝材料体系包括水泥、活性矿物外加剂、化学激发剂，其中所述活性矿物外加剂包括粉煤灰、矿粉、硅灰和纳米氧化铝，所述化学激发剂为硫酸钠；所述复合胶凝材料体系内的氧化钙和氧化硅的摩尔比为0.8‑0.91：1。本发明的优点是：利用特定氧化钙与氧化硅的比例，使胶凝材料发挥出良好的化学密实作用，通过化学激发剂（硫酸钠）可以增强胶凝材料的水化反应，更好地发挥胶凝材料的化学密实作用，能够显著地在降低水泥单耗的前提下，还能使获得的混凝土符合UHPC性能。
Composite cementing material system of ultra-high performance concrete and application method thereof
The invention relates to the technical field of civil engineering materials, in particular to a composite cementing material system of ultra-high performance concrete and an application method thereof. The system is characterized in that the composite cementing material system comprises cement, an active mineral admixture and a chemical activator, the active mineral admixture comprises fly ash, mineral powder, silica fume and nano aluminum oxide, and the chemical activator is sodium sulfate; the molar ratio of calcium oxide to silicon oxide in the composite cementing material system is (0.8-0.91): 1. The composite cementing material system has the advantages that the specific ratio of calcium oxide to silicon oxide is utilized so that the cementing material can exert good chemical compaction effect; the hydration reaction of the cementing material can be enhanced through the chemical activator (sodium sulfate), the chemical compaction effect of the cementing material can be well provided, and the obtained concrete can conform to the UHPC performance on the premise of significant cement unit consumption reducing.
本发明涉及土木工程材料技术领域，尤其是一种超高性能混凝土的复合胶凝材料体系及其应用方法，其特征在于：所述复合胶凝材料体系包括水泥、活性矿物外加剂、化学激发剂，其中所述活性矿物外加剂包括粉煤灰、矿粉、硅灰和纳米氧化铝，所述化学激发剂为硫酸钠；所述复合胶凝材料体系内的氧化钙和氧化硅的摩尔比为0.8‑0.91：1。本发明的优点是：利用特定氧化钙与氧化硅的比例，使胶凝材料发挥出良好的化学密实作用，通过化学激发剂（硫酸钠）可以增强胶凝材料的水化反应，更好地发挥胶凝材料的化学密实作用，能够显著地在降低水泥单耗的前提下，还能使获得的混凝土符合UHPC性能。
Composite cementing material system of ultra-high performance concrete and application method thereof
一种超高性能混凝土的复合胶凝材料体系及其应用方法
SHANG TAOPING (author) / WANG HONGXIN (author) / GONG YEFENG (author) / LIANG HUAIZHU (author) / ZHANG YANGYANG (author) / ZHAO LIANG (author) / LONG GUANGCHENG (author) / SHI YE (author)
2020-07-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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