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A platform for research: civil engineering, architecture and urbanism
C70 high-strength self-compacting concrete formula and preparation method thereof
The invention discloses a C70 high-strength self-compacting concrete formula and a preparation method thereof. The concrete is prepared from, by weight: cement, fly ash, water, fine sand, coarse aggregate, modified silica fume, a dispersing agent, a water reducing agent and a composite additive. The C70 high-strength self-compacting concrete prepared by the method disclosed by the invention has excellent flexural strength and relatively short setting time; compared with the prior art, the concrete has the following advantages: the application range can be better widened, the setting time is short, the setting time can be shortened as much as possible after the concrete is constructed, the phenomenon that the concrete is damaged when not being set due to the influence of external factors isavoided, and therefore the quality of a construction object is guaranteed.
本发明公开了一种C70高强度自密实混凝土配方及其制备方法；涉及混凝土制备技术领域，包括以下重量份组分制成：水泥、粉煤灰、水、细砂、粗骨料、改性微硅粉、分散剂、减水剂、复合添加剂；本发明方法制备的C70高强度自密实混凝土具有优异的抗折强度和较短的凝结时间，较高的抗折强度，能够更好的提高其应用范围，而较短的凝结时间，能够在混凝土施工后，能够尽量缩短凝结时间，避免由于外界因素的影响，造成在混凝土没有凝结的时候就出现损坏的现象，从而保障了施工对象的质量。
C70 high-strength self-compacting concrete formula and preparation method thereof
The invention discloses a C70 high-strength self-compacting concrete formula and a preparation method thereof. The concrete is prepared from, by weight: cement, fly ash, water, fine sand, coarse aggregate, modified silica fume, a dispersing agent, a water reducing agent and a composite additive. The C70 high-strength self-compacting concrete prepared by the method disclosed by the invention has excellent flexural strength and relatively short setting time; compared with the prior art, the concrete has the following advantages: the application range can be better widened, the setting time is short, the setting time can be shortened as much as possible after the concrete is constructed, the phenomenon that the concrete is damaged when not being set due to the influence of external factors isavoided, and therefore the quality of a construction object is guaranteed.
本发明公开了一种C70高强度自密实混凝土配方及其制备方法；涉及混凝土制备技术领域，包括以下重量份组分制成：水泥、粉煤灰、水、细砂、粗骨料、改性微硅粉、分散剂、减水剂、复合添加剂；本发明方法制备的C70高强度自密实混凝土具有优异的抗折强度和较短的凝结时间，较高的抗折强度，能够更好的提高其应用范围，而较短的凝结时间，能够在混凝土施工后，能够尽量缩短凝结时间，避免由于外界因素的影响，造成在混凝土没有凝结的时候就出现损坏的现象，从而保障了施工对象的质量。
C70 high-strength self-compacting concrete formula and preparation method thereof
一种C70高强度自密实混凝土配方及其制备方法
ZHANG HONGWEI (author)
2020-09-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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