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A platform for research: civil engineering, architecture and urbanism
Self-compacting concrete and preparation method thereof
The invention discloses machine-made sand self-compacting concrete and a preparation method thereof.The machine-made sand self-compacting concrete is prepared from, by weight, 700 parts to 800 parts of gravel, 700 parts to 800 parts of machine-made sand, 665 parts to 695 parts of cement, 165 parts to 185 parts of fly ash, 470 parts to 500 parts of water-quenched copper slag, 400 parts to 420 parts of water, 9 parts to 10 parts of water reducing agents and 0 to 2 parts of tackifiers; the content of silicon dioxide is 29-37%, the content of ferrous oxide is 41-54%, the apparent density is 3470 kg/m < 3 >, the apparent density of the self-compacting concrete is not lower than 2200 kg/m < 3 >, and the strength is not lower than 50 MPa. The preparation method is simple in process and few in raw material variety, and the prepared machine-made sand self-compacting concrete can have good working performance and mechanical performance and is convenient to transport and pump for construction.
本发明公开了一种机制砂自密实混凝土及其制备方法，所述机制砂自密实混凝土按照重量份计，包括以下各组分：碎石700‑800份，机制砂700‑800份，水泥665‑695份，粉煤灰165‑185份，水淬铜渣470‑500份，水400‑420份，减水剂9‑10份，增粘剂0‑2份所述水淬铜渣的粒径小于5㎜，二氧化硅含量为29‑37％，氧化亚铁含量为41‑54％，表观密度为3470kg/m3，所述自密实混凝土表观密度不低于2200kg/m3，强度不低于50MPa。本发明制备方法工序简单，原材料种类少，制备得到的机制砂自密实混凝土能够具有良好的工作性能和力学性能，便于运输及泵送施工。
Self-compacting concrete and preparation method thereof
The invention discloses machine-made sand self-compacting concrete and a preparation method thereof.The machine-made sand self-compacting concrete is prepared from, by weight, 700 parts to 800 parts of gravel, 700 parts to 800 parts of machine-made sand, 665 parts to 695 parts of cement, 165 parts to 185 parts of fly ash, 470 parts to 500 parts of water-quenched copper slag, 400 parts to 420 parts of water, 9 parts to 10 parts of water reducing agents and 0 to 2 parts of tackifiers; the content of silicon dioxide is 29-37%, the content of ferrous oxide is 41-54%, the apparent density is 3470 kg/m < 3 >, the apparent density of the self-compacting concrete is not lower than 2200 kg/m < 3 >, and the strength is not lower than 50 MPa. The preparation method is simple in process and few in raw material variety, and the prepared machine-made sand self-compacting concrete can have good working performance and mechanical performance and is convenient to transport and pump for construction.
本发明公开了一种机制砂自密实混凝土及其制备方法，所述机制砂自密实混凝土按照重量份计，包括以下各组分：碎石700‑800份，机制砂700‑800份，水泥665‑695份，粉煤灰165‑185份，水淬铜渣470‑500份，水400‑420份，减水剂9‑10份，增粘剂0‑2份所述水淬铜渣的粒径小于5㎜，二氧化硅含量为29‑37％，氧化亚铁含量为41‑54％，表观密度为3470kg/m3，所述自密实混凝土表观密度不低于2200kg/m3，强度不低于50MPa。本发明制备方法工序简单，原材料种类少，制备得到的机制砂自密实混凝土能够具有良好的工作性能和力学性能，便于运输及泵送施工。
Self-compacting concrete and preparation method thereof
一种自密实混凝土及其制备方法
WU YIFEI ( author ) / LYU JIWEI ( author ) / SONG HUIYAN ( author ) / GAO SHUANGSHUANG ( author ) / ZHAO SHAOFEI ( author )
2023-07-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024