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海砂、淡化海砂对混凝土力学和耐久性能的影响综述
A Summary of the Effects of Sea Sand and Desalinated Sea Sand on the Mechanical and Durability of Concrete
2023年第3期
淡化海砂;海砂混凝土;Friedel盐;纤维增强塑料筋;海水和碳化环境
Desalinated sea sand; Sea sand concrete; Friedel’s salt; Fiber reinforced plastic bar; Sea water and carbonization environment
2023年第3期
10.19761/j.1000-4637.2023.03.024.05
国家自然科学基金项目(51878404);上海市科学技术委员会资助项目(18DZ2282600);上海市科委浦江人才计划项目(20PJ1417600);上海建工集团重点科研项目(21JCYJ-13)。
周昱程1,2
1.上海建工集团股份有限公司,上海 200080;2.上海高大结构高性能混凝土工程技术研究中心, 上海 201114

周昱程1,2

周昱程.海砂、淡化海砂对混凝土力学和耐久性能的影响综述[J].混凝土与水泥制品,2023(3):24-28.

ZHOU Y C.A Summary of the Effects of Sea Sand and Desalinated Sea Sand on the Mechanical and Durability of Concrete[J].China Concrete and Cement Products,2023(3):24-28.

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摘   要:介绍了海砂的淡化处理技术以及海砂与淡化海砂在物理、化学属性方面的差异性,对比了海砂混凝土与淡化海砂混凝土力学性能、耐久性能的不同,并总结了纤维增强材料(FRP)筋与海砂混凝土之间适配性问题,对海砂混凝土、淡化海砂混凝土在工程中的可行性应用进行了展望。 Abstract: The desalination treatment technology of sea sand and the differences in physical and chemical properties between sea sand and desalinated sea sand are introduced. The differences in mechanical properties and durability between sea sand concrete and desalinated sea sand concrete are compared. The adaptability between fiber reinforced plastic(FRP) bars and sea sand concrete is summarized. The feasible application of sea sand concrete and desalinated sea sand concrete in engineering are prospected.
英文名 : A Summary of the Effects of Sea Sand and Desalinated Sea Sand on the Mechanical and Durability of Concrete
刊期 : 2023年第3期
关键词 : 淡化海砂;海砂混凝土;Friedel盐;纤维增强塑料筋;海水和碳化环境
Key words : Desalinated sea sand; Sea sand concrete; Friedel’s salt; Fiber reinforced plastic bar; Sea water and carbonization environment
刊期 : 2023年第3期
DOI : 10.19761/j.1000-4637.2023.03.024.05
文章编号 :
基金项目 : 国家自然科学基金项目(51878404);上海市科学技术委员会资助项目(18DZ2282600);上海市科委浦江人才计划项目(20PJ1417600);上海建工集团重点科研项目(21JCYJ-13)。
作者 : 周昱程1,2
单位 : 1.上海建工集团股份有限公司,上海 200080;2.上海高大结构高性能混凝土工程技术研究中心, 上海 201114

周昱程1,2

周昱程.海砂、淡化海砂对混凝土力学和耐久性能的影响综述[J].混凝土与水泥制品,2023(3):24-28.

ZHOU Y C.A Summary of the Effects of Sea Sand and Desalinated Sea Sand on the Mechanical and Durability of Concrete[J].China Concrete and Cement Products,2023(3):24-28.

摘要
参数
结论
参考文献
引用本文

摘   要:介绍了海砂的淡化处理技术以及海砂与淡化海砂在物理、化学属性方面的差异性,对比了海砂混凝土与淡化海砂混凝土力学性能、耐久性能的不同,并总结了纤维增强材料(FRP)筋与海砂混凝土之间适配性问题,对海砂混凝土、淡化海砂混凝土在工程中的可行性应用进行了展望。

Abstract: The desalination treatment technology of sea sand and the differences in physical and chemical properties between sea sand and desalinated sea sand are introduced. The differences in mechanical properties and durability between sea sand concrete and desalinated sea sand concrete are compared. The adaptability between fiber reinforced plastic(FRP) bars and sea sand concrete is summarized. The feasible application of sea sand concrete and desalinated sea sand concrete in engineering are prospected.

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(1)海砂中含有大量的Cl-易对钢筋产生锈蚀,且其中的贝壳碎片还会引起混凝土强度的降低,需采取一定措施延缓钢筋混凝土的劣化,FRP筋-海砂混凝土是较为有效的方法,但海砂混凝土的碱度和Cl-仍会对FRP筋产生影响。因此,对海砂进行淡化处理必不可少。
(2)海砂的淡化可以有效降低Cl-、SO42-、贝壳碎片、泥块含量等,可提高淡化海砂混凝土的力学和耐久性能。因此,淡化海砂混凝土具有广阔的应用前景。然而,现有的海砂淡化处理技术存在劣势,企业对海砂的无序开采也影响了海洋环境与生态,从而限制了淡化海砂的推广应用。因此,应当加快海砂淡化和配制技术的创新,合理利用海洋资源,保护生态环境。

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周昱程.海砂、淡化海砂对混凝土力学和耐久性能的影响综述[J].混凝土与水泥制品,2023(3):24-28.

ZHOU Y C.A Summary of the Effects of Sea Sand and Desalinated Sea Sand on the Mechanical and Durability of Concrete[J].China Concrete and Cement Products,2023(3):24-28.

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