A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Early-strength high-slump-retaining steam-curing-free concrete for PC components and preparation method of early-strength high-slump-retaining steam-curing-free concrete
The invention discloses early-strength high-slump-retaining steam-curing-free concrete for PC components and a preparation method thereof, and the early-strength high-slump-retaining steam-curing-freeconcrete comprises the following components in parts by mass: 9-15 parts of cement, 20-30 parts of machine-made sand, 32-45 parts of gravel, 5-10 parts of fly ash, 3-5 parts of silica fume, 0.06-0.12part of sulfamate water reducer, 0.06-0.18 part of naphthalene water reducing agent, 0.002-0.01 part of defoamer and 7-12 parts of water. The early-strength high-slump-retaining steam-curing-free concrete for PC components can be prepared by premixing the raw materials, activating the aggregate, mixing the rubber materials and conducting quick stirring. The requirements that the PC component reaches 15MPa within 12h after natural curing, the slump time loss value of the concrete mixture within 1h is less than or equal to 20mm, and the slump time loss value of the concrete mixture within 3h isless than or equal to 50mm can be met, a PC factory can quickly, efficiently and stably conduct production, and remarkable economic and environmental benefits are achieved.
本发明公开了一种PC构件用早强高保坍免蒸养混凝土及其制备方法，按质量份数计，包括以下组分：水泥9‑15份，机制砂20‑30份，碎石32‑45份，粉煤灰5‑10份，硅灰3‑5份，氨基磺酸盐减水剂0.06‑0.12份，萘系减水剂0.06‑0.18份，消泡剂0.002‑0.01份，水7‑12份。原料经过预混、骨料活化、胶材混合、快速搅拌后即可制得快硬早强免蒸养PC构件用混凝土。可满足PC构件自然养护12h内达到15MPa，混凝土拌合物1h坍落度经时损失值≤20mm，3h坍落度经时损失值≤50mm，PC工厂快速、高效、稳定生产，具有显著的经济和环境效益。
Early-strength high-slump-retaining steam-curing-free concrete for PC components and preparation method of early-strength high-slump-retaining steam-curing-free concrete
The invention discloses early-strength high-slump-retaining steam-curing-free concrete for PC components and a preparation method thereof, and the early-strength high-slump-retaining steam-curing-freeconcrete comprises the following components in parts by mass: 9-15 parts of cement, 20-30 parts of machine-made sand, 32-45 parts of gravel, 5-10 parts of fly ash, 3-5 parts of silica fume, 0.06-0.12part of sulfamate water reducer, 0.06-0.18 part of naphthalene water reducing agent, 0.002-0.01 part of defoamer and 7-12 parts of water. The early-strength high-slump-retaining steam-curing-free concrete for PC components can be prepared by premixing the raw materials, activating the aggregate, mixing the rubber materials and conducting quick stirring. The requirements that the PC component reaches 15MPa within 12h after natural curing, the slump time loss value of the concrete mixture within 1h is less than or equal to 20mm, and the slump time loss value of the concrete mixture within 3h isless than or equal to 50mm can be met, a PC factory can quickly, efficiently and stably conduct production, and remarkable economic and environmental benefits are achieved.
本发明公开了一种PC构件用早强高保坍免蒸养混凝土及其制备方法，按质量份数计，包括以下组分：水泥9‑15份，机制砂20‑30份，碎石32‑45份，粉煤灰5‑10份，硅灰3‑5份，氨基磺酸盐减水剂0.06‑0.12份，萘系减水剂0.06‑0.18份，消泡剂0.002‑0.01份，水7‑12份。原料经过预混、骨料活化、胶材混合、快速搅拌后即可制得快硬早强免蒸养PC构件用混凝土。可满足PC构件自然养护12h内达到15MPa，混凝土拌合物1h坍落度经时损失值≤20mm，3h坍落度经时损失值≤50mm，PC工厂快速、高效、稳定生产，具有显著的经济和环境效益。
Early-strength high-slump-retaining steam-curing-free concrete for PC components and preparation method of early-strength high-slump-retaining steam-curing-free concrete
一种PC构件用早强高保坍免蒸养混凝土及其制备方法
WU SHIMING (author) / PAN HAN (author) / LIAO FENG (author) / LU WENDA (author) / ZHANG LEI (author) / TU WENLEI (author) / JIANG YI (author) / LI SHUNTAO (author) / ZHANG WENJU (author) / LEI HONGLIANG (author)
2021-02-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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