珊瑚砂水下不分散混凝土性能试验研究_《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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珊瑚砂水下不分散混凝土性能试验研究

Experimental Study on Anti-washout Underwater Concrete with Coral Sand

2021年第2期

珊瑚砂；絮凝剂；不分散混凝土；抗压强度；水陆强度比

Coral sand; Anti-washout admixture; Anti-washout concrete; Compressive strength; Underwater/in-air strength ratio

2021年第2期

10.19761/j.1000-4637.2021.02.027.05

廖绍华

中石化石油工程设计有限公司，山东东营 257026

廖绍华

廖绍华.珊瑚砂水下不分散混凝土性能试验研究[J].混凝土与水泥制品,2021(2):27-31.

LIAO S H.Experimental Study on Anti-washout Underwater Concrete with Coral Sand [J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2):27-31.

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摘要：研究了水泥用量、絮凝剂掺量、砂率对海水拌和珊瑚砂水下不分散混凝土性能的影响。结果表明：珊瑚砂水下不分散混凝土单位用水量为235~283 kg/m3时，砂率对单位用水量的影响最为显著，用水量随砂率增加而增大；水泥用量为400~490 kg/m3时，28 d抗压强度在26~39 MPa之间，可配制C20~C30水下不分散混凝土；水泥用量对抗压强度的影响最为显著，强度随水泥用量的增加而增大；水陆强度比随水泥和絮凝剂掺量增加而增大。 Abstract: The effects of cement dosage, anti-washout admixture dosage and sand rate on the performance of underwater sand-dispersed concrete with coral sand were studied. The results show when the water consumption of the anti-washout concrete is between 235~283 kg/m3, the sand rate has the most significant effect on the unit water consumption. With the water consumption increasing, the sand rate increases significantly. When the cement dosage is 400~490 kg/m3, the 28 d compressive strength of underwater concrete is between 26~39 MPa, and C20~C30 anti-washout concrete can be prepared. The amount of cement is the most significant in compressive strength, and the strength increases with increasing amount of cement. At the same time, the underwater/in-air strength ratio increases as the amount of cement and anti-washout admixture increases.

英文名 : Experimental Study on Anti-washout Underwater Concrete with Coral Sand

刊期 : 2021年第2期

关键词 : 珊瑚砂；絮凝剂；不分散混凝土；抗压强度；水陆强度比

Key words : Coral sand; Anti-washout admixture; Anti-washout concrete; Compressive strength; Underwater/in-air strength ratio

刊期 : 2021年第2期

DOI : 10.19761/j.1000-4637.2021.02.027.05

文章编号 :

基金项目 :

作者 : 廖绍华

单位 : 中石化石油工程设计有限公司，山东东营 257026

廖绍华

廖绍华.珊瑚砂水下不分散混凝土性能试验研究[J].混凝土与水泥制品,2021(2):27-31.

LIAO S H.Experimental Study on Anti-washout Underwater Concrete with Coral Sand [J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2):27-31.

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引用本文

Abstract: The effects of cement dosage, anti-washout admixture dosage and sand rate on the performance of underwater sand-dispersed concrete with coral sand were studied. The results show when the water consumption of the anti-washout concrete is between 235~283 kg/m3, the sand rate has the most significant effect on the unit water consumption. With the water consumption increasing, the sand rate increases significantly. When the cement dosage is 400~490 kg/m3, the 28 d compressive strength of underwater concrete is between 26~39 MPa, and C20~C30 anti-washout concrete can be prepared. The amount of cement is the most significant in compressive strength, and the strength increases with increasing amount of cement. At the same time, the underwater/in-air strength ratio increases as the amount of cement and anti-washout admixture increases.

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