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水泥基材料裂隙表面溶蚀过程

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Abstract:

研究了水泥基材料真实裂隙表面在水流动过程中开裂表面的溶蚀特性,建立了裂隙表面在水流作用下的钙离子迁移和表面溶蚀速率模型。利用浸泡法和裂隙渗流装置对裂隙试件进行静态和动态溶蚀行为的试验研究,根据试验结果和理论模型回归了描述静态和动态溶蚀速率,并针对裂隙表面进行了溶蚀前后的粗糙度分析。结果表明裂隙表面在流动水作用下的溶蚀速率显著大于静水中的溶蚀速率;水流对净浆表面和砂浆表面的溶蚀速率的影响不同;表面溶蚀过程减小了净浆表面的粗糙度但加大了砂浆表面的粗糙度。

References

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