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首页> 外文期刊>Modelling, Measurement & Control. Series C, Energetics, chemistry & chemical engineering, earth resources, environment, biomedical problems >Behaviour and Service Life of Sandcrete Block Prism in an Acid Rain Environment
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Behaviour and Service Life of Sandcrete Block Prism in an Acid Rain Environment

机译：酸雨环境下砂混凝土块体的行为与使用寿命

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摘要

Due to a significant fall in PH-value of rain water, there is a serious concern about the strength of cement-based masonry materials exposed to acid rain. For different mixes (1:6, 1:8 and 1:12 of cement-sand ratio) of sandcrete block-prism specimens, subjected to acid rain solution and compression test, their characteristic strength decreases as the cement-sand ratio decreases. Penetration rate, of the acid rain solution into the specimens, does not depend on the pH-value of the solution. The results of the data analysed also showed that acid-rain penetration for mix 1:6 is moderate, 1:8 is high and 1:12 (not recommended for a loadbearing wall in such an environment) is severe. There is 38% reduction in the bearing (compression) capacity of sandcrete masonry due the penetration of the solution. A load factor of 2.9 is suggested for this masonry.
机译：由于雨水的PH值显着下降，因此人们非常担心暴露在酸雨中的水泥基砌筑材料的强度。对于不同比例的砂土块状棱镜混合物（水泥砂比为1：6、1：8和1:12），经过酸雨溶液和压缩试验后，其特征强度随水泥砂比的降低而降低。酸雨溶液渗透到样品中的渗透率不取决于溶液的pH值。分析数据的结果还显示，混合物1：6的酸雨渗透度中等，1：8的酸雨渗透度高，1：12（在这种环境下不建议用于承重墙）很严重。由于溶液的渗透，砂石砌体的承载（压缩）能力降低了38％。建议此砌体的荷载系数为2.9。

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