A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation anti-scouring early-strength grouting material for underwater cast-in-place pile foundation and application of foundation anti-scouring early-strength grouting material
The invention discloses an anti-scouring early-strength grouting material for an underwater cast-in-place pile foundation and application of the anti-scouring early-strength grouting material. The grouting material comprises cement, an early strength component, a delayed coagulation component, an activator, a fluidity maintaining component, an underwater anti-dispersion flocculant, steel slag powder and fly ash. All the components of the grouting material are accurately metered and then premixed in a factory to form a dry mixture, water is added into the dry mixture, the dry mixture is stirred by a forced stirrer to form slurry, and the slurry is pumped to the root of a pile foundation through a pipeline within half an hour. The grouting material stirred by adding water can be pumped to the root of a pile foundation through a pipeline within half an hour, is not dispersed during underwater grouting, and can be self-leveled to a protective area around the pile foundation; and the strength development is fast, the unconfined compressive strength in 6 hours is greater than 200 kPa, and the unconfined compressive strength in 1 day can reach 400 kPa.
本发明公开了一种水下灌注桩基基础防冲刷早强型注浆材料及应用。本发明所述注浆材料包括水泥、早强组分、缓凝组分、激发剂、流动性保持组分、水下抗分散絮凝剂、钢渣粉及粉煤灰；将注浆材料各组分准确计量后在工厂内预先混合形成干混料，加水后采用强制式搅拌机搅拌形成浆体，半小时内通过管道泵送至桩基基础根部。本发明加水搅拌完成的注浆材料在半小时内可通过管道泵送至桩基基础根部，水下灌注时不分散、可自流平至桩基周围防护区域；且强度发展快，6h无侧限抗压强度大于200kPa，1d即可达400kPa。
Foundation anti-scouring early-strength grouting material for underwater cast-in-place pile foundation and application of foundation anti-scouring early-strength grouting material
The invention discloses an anti-scouring early-strength grouting material for an underwater cast-in-place pile foundation and application of the anti-scouring early-strength grouting material. The grouting material comprises cement, an early strength component, a delayed coagulation component, an activator, a fluidity maintaining component, an underwater anti-dispersion flocculant, steel slag powder and fly ash. All the components of the grouting material are accurately metered and then premixed in a factory to form a dry mixture, water is added into the dry mixture, the dry mixture is stirred by a forced stirrer to form slurry, and the slurry is pumped to the root of a pile foundation through a pipeline within half an hour. The grouting material stirred by adding water can be pumped to the root of a pile foundation through a pipeline within half an hour, is not dispersed during underwater grouting, and can be self-leveled to a protective area around the pile foundation; and the strength development is fast, the unconfined compressive strength in 6 hours is greater than 200 kPa, and the unconfined compressive strength in 1 day can reach 400 kPa.
本发明公开了一种水下灌注桩基基础防冲刷早强型注浆材料及应用。本发明所述注浆材料包括水泥、早强组分、缓凝组分、激发剂、流动性保持组分、水下抗分散絮凝剂、钢渣粉及粉煤灰；将注浆材料各组分准确计量后在工厂内预先混合形成干混料，加水后采用强制式搅拌机搅拌形成浆体，半小时内通过管道泵送至桩基基础根部。本发明加水搅拌完成的注浆材料在半小时内可通过管道泵送至桩基基础根部，水下灌注时不分散、可自流平至桩基周围防护区域；且强度发展快，6h无侧限抗压强度大于200kPa，1d即可达400kPa。
Foundation anti-scouring early-strength grouting material for underwater cast-in-place pile foundation and application of foundation anti-scouring early-strength grouting material
一种水下灌注桩基基础防冲刷早强型注浆材料及应用
HUANG WENCONG (author) / SHA JIANFANG (author) / LIU JIANZHONG (author) / GUO FEI (author) / XU HAIYUAN (author) / WU ZHOU (author) / XUE YONGHONG (author) / XIA ZHONGSHENG (author)
2022-07-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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