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A platform for research: civil engineering, architecture and urbanism
Ultrahigh-performance low-carbon concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to ultra-high-performance low-carbon concrete and a preparation method thereof.The ultra-high-performance low-carbon concrete is prepared from, by weight, 600-750 parts of cement, 200-280 parts of silica fume, 60-100 parts of fly ash, 1000-1300 parts of quartz sand, 70-85 parts of silicon dioxide coated copper-plated straight steel fiber, 6-11 parts of modified polycarboxylic acid water reducing agent and 145-215 parts of water. The ultra-high-performance low-carbon concrete is prepared by using the silicon dioxide coated copper-plated straight steel fiber, the modified polycarboxylic acid water reducer and the like, and the ultra-high-performance concrete of which the 28d compressive strength is greater than 150MPa can be obtained under the conditions that more silica fume and fly ash are adopted to replace cement to serve as a cementing material and the doping amount of the steel fiber is less.
本发明涉及混凝土技术领域，具体涉及一种超高性能低碳混凝土及其制备方法，超高性能低碳混凝土包括以下重量份的原料：水泥600‑750份、硅灰200‑280份、粉煤灰60‑100分、石英砂1000‑1300份、二氧化硅包覆镀铜平直钢纤维70‑85份、改性聚羧酸减水剂6‑11份、水145‑215份。本发明通过使用二氧化硅包覆镀铜平直钢纤维、改性聚羧酸减水剂等制备超高性能低碳混凝土，在采用较多的硅灰以及粉煤灰替换水泥作为胶凝材料且在钢纤维掺量较少的情况下，可获得28d抗压强度＞150MPa的超高性能混凝土。
Ultrahigh-performance low-carbon concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to ultra-high-performance low-carbon concrete and a preparation method thereof.The ultra-high-performance low-carbon concrete is prepared from, by weight, 600-750 parts of cement, 200-280 parts of silica fume, 60-100 parts of fly ash, 1000-1300 parts of quartz sand, 70-85 parts of silicon dioxide coated copper-plated straight steel fiber, 6-11 parts of modified polycarboxylic acid water reducing agent and 145-215 parts of water. The ultra-high-performance low-carbon concrete is prepared by using the silicon dioxide coated copper-plated straight steel fiber, the modified polycarboxylic acid water reducer and the like, and the ultra-high-performance concrete of which the 28d compressive strength is greater than 150MPa can be obtained under the conditions that more silica fume and fly ash are adopted to replace cement to serve as a cementing material and the doping amount of the steel fiber is less.
本发明涉及混凝土技术领域，具体涉及一种超高性能低碳混凝土及其制备方法，超高性能低碳混凝土包括以下重量份的原料：水泥600‑750份、硅灰200‑280份、粉煤灰60‑100分、石英砂1000‑1300份、二氧化硅包覆镀铜平直钢纤维70‑85份、改性聚羧酸减水剂6‑11份、水145‑215份。本发明通过使用二氧化硅包覆镀铜平直钢纤维、改性聚羧酸减水剂等制备超高性能低碳混凝土，在采用较多的硅灰以及粉煤灰替换水泥作为胶凝材料且在钢纤维掺量较少的情况下，可获得28d抗压强度＞150MPa的超高性能混凝土。
Ultrahigh-performance low-carbon concrete and preparation method thereof
一种超高性能低碳混凝土及其制备方法
ZHANG KAI (author) / YE SHANBIN (author) / BO DONGDONG (author) / CHEN CHEN (author)
2024-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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