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首页> 外文期刊>International Journal of Electrochemical Science >Study on the Hydration Behavior of Portland Cement Partially Replaced with Mineral Additives via an Electrochemical Technique
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Study on the Hydration Behavior of Portland Cement Partially Replaced with Mineral Additives via an Electrochemical Technique

机译：电化学技术用矿物添加剂部分用矿物添加剂的水化行为研究

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摘要

In this work, the effects of mineral admixtures, corn cob ash (CCA) and waste plastic fiber (WPF) fillers, on mechanical properties and hydration of Portland cement (PC) were investigated. The partial replacement of both WPF and CCA in PC accelerates the setting process as compared to control PC sample without additives. The addition of WPF decreased the compressive strength of PC and the strength of 42.1 MPa has been obtained in 4-weeks of curing time. CCA addition rises the strength and maximum value of 74 MPa has been found. The electrochemical results indicate that the values of charge-transfer resistance in the equivalent circuit model for PC increase with increasing hydration period. CCA replacement can affect the resistance value in the equivalent circuit. In the 4-weeks hydration time, CCA additives can decrease the resistance value and hydration degree of PC paste. The surface morphology of samples indicated that modified CCA-concrete had lower hydration products than the PC concrete, which was compatible with electrochemical results.
机译：在这项工作中，研究了矿物混合物，玉米汤匙（CCA）和废塑料纤维（WPF）填料的影响，对植物性能和波特兰水泥（PC）的水合和水合进行了研究。与对照PC样品没有添加剂，PC中的WPF和CCA的部分替换加速了设置过程。加入WPF降低了PC的抗压强度，并在4周的固化时间内获得了42.1MPa的强度。 CCA添加提高了74 MPa的强度和最大值。电化学结果表明，随着水化时期的增加，PC增加了等效电路模型中的电荷转移电阻值。 CCA替换会影响等效电路中的电阻值。在4周的水合时间中，CCA添加剂可以降低PC浆料的电阻值和水合度。样品的表面形态表明，改性的CCA混凝土比PC混凝土具有较低的水合产物，其与电化学结果相容。

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