超高桥塔混凝土泵送性能优化试验研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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超高桥塔混凝土泵送性能优化试验研究

Experimental research on pumpability optimization for ultra high bridge tower concrete

2024年第11期

泵送阻力；润滑层；黏度系数；混凝土；屈服应力；泵送性能

Pumping resistance; Lubrication layer; Viscous coefficient; Concrete; Yield stress; Pumpability

2024年第11期

10.19761/j.1000-4637.2024.11.017.05

江苏省自然科学基金项目（BK20221198）；广西科技计划项目（桂科AB22036007-6）。

黄涛1，2，潘利1，2，毛永琳1，2，徐文1，2，*

1.江苏省建筑科学研究院有限公司高性能土木工程材料国家重点实验室，江苏南京 210024； 2.江苏苏博特新材料股份有限公司，江苏南京 211103

黄涛1，2，潘利1，2，毛永琳1，2，徐文1，2，*

黄涛,潘利,毛永琳,等.超高桥塔混凝土泵送性能优化试验研究[J].混凝土与水泥制品,2024(11):17-21.

HUANG T,PAN L,MAO Y L,et la.Experimental research on pumpability optimization for ultra high bridge tower concrete[J].China Concrete and Cement Products,2024(11):17-21.

浏览量:

1000

摘要：以常泰长江大桥工程为背景，采用一种基于流变仪摩擦计测试流变性能的试验方法，研究了水胶比、同胶凝材料总量、砂率对超高桥塔混凝土工作性及泵送性能的影响，并分析了泵管管径、泵送排量对泵送性能的影响。结果表明：适当提高水胶比、增加胶凝材料总用量、增加砂率均对改善混凝土的工作性与泵送性能有利；流变改性材料的掺入可大幅降低润滑层的黏度系数与混凝土的泵送阻力。 Abstract: Taking the Changtai Yangtze River Bridge project as the background, a test method based on rheometer friction meter was adopted to test rheological properties to study the effects of water-binder ratio, total amount of the same cementitious material, and sand ratio on the workability and pumpability of concrete for ultra high bridge towers. The influence of pump pipe diameter and pumping displacement on pumpability was also analyzed. The results indicate that appropriately increasing the water-binder ratio, total amount of cementitious materials, and sand ratio are all beneficial for improving the workability and pumpability of concrete. The addition of rheological modified materials can significantly reduce the viscosity coefficient of the lubricating layer and the pumping resistance of concrete.

英文名 : Experimental research on pumpability optimization for ultra high bridge tower concrete

刊期 : 2024年第11期

关键词 : 泵送阻力；润滑层；黏度系数；混凝土；屈服应力；泵送性能

Key words : Pumping resistance; Lubrication layer; Viscous coefficient; Concrete; Yield stress; Pumpability

刊期 : 2024年第11期

DOI : 10.19761/j.1000-4637.2024.11.017.05

文章编号 :

基金项目 : 江苏省自然科学基金项目（BK20221198）；广西科技计划项目（桂科AB22036007-6）。

作者 : 黄涛1，2，潘利1，2，毛永琳1，2，徐文1，2，*

单位 : 1.江苏省建筑科学研究院有限公司高性能土木工程材料国家重点实验室，江苏南京 210024； 2.江苏苏博特新材料股份有限公司，江苏南京 211103

黄涛1，2，潘利1，2，毛永琳1，2，徐文1，2，*

黄涛,潘利,毛永琳,等.超高桥塔混凝土泵送性能优化试验研究[J].混凝土与水泥制品,2024(11):17-21.

HUANG T,PAN L,MAO Y L,et la.Experimental research on pumpability optimization for ultra high bridge tower concrete[J].China Concrete and Cement Products,2024(11):17-21.

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摘要

参数

结论

参考文献

引用本文

Abstract: Taking the Changtai Yangtze River Bridge project as the background, a test method based on rheometer friction meter was adopted to test rheological properties to study the effects of water-binder ratio, total amount of the same cementitious material, and sand ratio on the workability and pumpability of concrete for ultra high bridge towers. The influence of pump pipe diameter and pumping displacement on pumpability was also analyzed. The results indicate that appropriately increasing the water-binder ratio, total amount of cementitious materials, and sand ratio are all beneficial for improving the workability and pumpability of concrete. The addition of rheological modified materials can significantly reduce the viscosity coefficient of the lubricating layer and the pumping resistance of concrete.

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超高桥塔混凝土泵送性能优化试验研究

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