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不同配比混凝土强度及防水性能变化规律研究

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水利工程中,长期的水分侵蚀会导致混凝土的强度下降,影响建筑结构的安全。以丰城大联圩涝区水利治理工程作为研究背景,对混凝土的主料及辅料进行不同配比,在当地水环境中进行养护,针对不同配比下混凝土的强度与抗侵蚀性能的变化进行研究。结果表明:水泥与矿渣含量的增加会增强混凝土的强度,细砂含量的增加会增加混凝土的和易性;通过对不同辅料配比下混凝土的抗侵蚀特性进行研究,发现硅微粉含量的增加抑制了氯离子的扩散,硅微粉与萘系减水剂含量的增加均可减少混凝土的吸水率;通过研究不同配比下混凝土性能的变化规律,可为类似水利工程建设提供参考。
Variation Law of Strength and Water Resistance of Concrete under Different Mix Proportions
In water conservancy projects,long-term erosion by water can lead to a decrease in the strength of concrete,affecting the safety of building structures.Using the Fengcheng Dalienwei Flood-prone Area water management project as a research background,this study examines different proportions of main and auxiliary materials in concrete and conducts curing under local water conditions.The research focuses on changes in the strength and anti-erosion properties of concrete under different mix proportions.The results indicate that an increase in cement and slag content enhances the strength of concrete,while an increase in fine sand content improves its workability.Studying the anti-erosion characteristics of concrete with different auxiliary material proportions reveals that an increase in silica fume content inhibits the diffusion of chloride ions,and increases in both silica fume and naphthalene-based superplasticizer contents can reduce the water absorption rate of concrete.By investigating the law of variation in concrete performance under different proportions,this study provides reference for similar water conservancy constructions.

water resistanceconcretedifferent mix proportionsstrength

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江西省水利水电建设集团有限公司,江西南昌 330000

防水 混凝土 不同配比 强度

2024

陕西水利
陕西省城乡供水管理办公室

陕西水利

影响因子:0.185
ISSN:1673-9000
年,卷(期):2024.(12)