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Effects of coal fly ash and fine sawdust on the performance of pervious concrete

机译：粉煤灰和细木屑对透水混凝土性能的影响

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Pervious Concrete (PC) has long been used in surface runoff management. But one of its major drawbacks is its low strength. Several industrial wastes apparently contain properties that could aid the increase in strength of PC such as coal fly ash and fine sawdust. Thus, their utilization is a possible solution that could address the low-strength issues of PC along with industrial waste disposal management. This study was conducted to investigate the laboratory and field performance of PC while incorporating coal fly ash (CFA) as partial cement replacement and fine sawdust (FSD) as internal curing agent and filler admixture. Tests were performed in accordance with American Society for Testing and Materials (ASTM) standards. In general, the test results showed that PC with CFA and FSD as additives in PC gained enough strength to be considered for field application. In-situ infiltration and strength results showed that the pavement conformed to the typical values for a functional PC pavement.
机译：渗透混凝土（PC）长期用于地表径流管理。但是其主要缺点之一是强度低。几种工业废料显然具有可以帮助提高PC强度的特性，例如粉煤灰和细锯末。因此，利用它们是一种可能的解决方案，可以解决PC的低强度问题以及工业废物处理管理。进行这项研究的目的是研究PC的实验室和现场性能，同时结合粉煤灰（CFA）作为部分水泥替代物和细木屑（FSD）作为内部固化剂和填料掺合料。根据美国材料试验学会（ASTM）标准进行测试。通常，测试结果表明，以CFA和FSD作为添加剂的PC在PC中获得了足够的强度，可以考虑用于现场应用。原位渗透和强度结果表明该路面符合功能性PC路面的典型值。

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