This study assessed concrete durability in pig farm environments, focusing on resistance to organic acid corrosion and physical abrasion. It used supplementary cementitious materials like silica fume (SF), coal fly ash (CFA), and bagasse fly ash (BFA) to improve concrete resilience. The research involved casting and testing concrete samples for compressive strength, acid corrosion resistance, abrasion resistance, and their combined effects. A custom apparatus simulated corrosion and abrasion cycles typical in pig farm flooring. Results showed that a combination of SF, CFA, and BFA significantly enhanced compressive strength, especially with extended curing. Additionally, these materials improved concrete's resistance to acid corrosion, physical abrasion, and their combined effects. The replacement of 30 wt% of cement with CFA and BFA in concrete significantly reduced mass loss due to acid corrosion to less than 10%, whereas the control mix exhibited a mass loss exceeding 24%. Additionally, concrete with 30 wt% CFA or BFA replacement exhibited a minimal combined mass loss, decreasing to less than 2.5% due to acid corrosion and physical abrasion, as opposed to the 16% observed in the control mixture.

中文翻译：

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使用辅助胶凝材料增强混凝土混合物的耐久性：养猪场环境中有机酸腐蚀和物理磨损的研究


这项研究评估了养猪场环境中的混凝土耐久性，重点是耐有机酸腐蚀和物理磨损。它使用硅灰（SF）、粉煤灰（CFA）和甘蔗渣粉煤灰（BFA）等辅助胶凝材料来提高混凝土的弹性。该研究涉及浇注和测试混凝土样品的抗压强度、耐酸腐蚀性、耐磨性及其综合效果。定制设备模拟养猪场地板中典型的腐蚀和磨损循环。结果表明，SF、CFA 和 BFA 的组合可显着提高抗压强度，尤其是在延长固化时间的情况下。此外，这些材料还提高了混凝土的耐酸腐蚀、物理磨损及其综合效果。在混凝土中用 CFA 和 BFA 替代 30 wt% 的水泥，可将酸腐蚀引起的质量损失显着降低至 10% 以下，而对照混合物的质量损失超过 24%。此外，含有 30 wt% CFA 或 BFA 替代品的混凝土表现出最小的综合质量损失，由于酸腐蚀和物理磨损而减少至低于 2.5%，而对照混合物中观察到的为 16%。