煤底灰混凝土的渗透特性

Q4 Environmental Science

Journal of Solid Waste Technology and Management Pub Date : 2022-08-01 DOI:10.5276/jswtm/2022.353

Navdeep Singh, A. Bhardwaj, Shehnazdeep

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引用次数: 0

摘要

在测试渗透性能的混凝土中，引入了低体积粉煤灰（CBA）作为硅酸盐水泥（PC）和细天然骨料（FNA）的替代品。分别通过加速碳化试验和快速氯离子试验测量碳化和抗氯离子性能，同时通过毛细管吸水试验评估上述混凝土的透水性。本文特别研究了CBA在混凝土渗透性能方面的有效性。实验研究推断，随着CBA水平的增加，对于低体积变化，对碳酸化、氯化物渗透和水渗透的抵抗力在一定程度上降低，而对于更高的置换，观察到更高的递减。与对照混凝土相比，CBA作为PC和FNA的联合替代分别达到10%和25%，表现出令人满意的性能，证明了CBA在混凝土中成功应用的功效和潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Permeation Behaviour of Coal Bottom Ash Concretes

Low volume Coal Bottom Ash (CBA) was introduced as a substitute for Portland Cement (PC) and Fine Natural Aggregates (FNA) in concretes that were tested for permeation performance. Carbonation and chloride resistance was measured through accelerated carbonation tests and rapid chloride tests respectively while water penetration was evaluated through capillary water absorption tests for the aforesaid concretes. This paper particularly investigates the effectiveness of CBA in regard of permeation behaviour in concrete. The experimental investigation inferred that as level of CBA increases, the resistance towards carbonation, chloride penetration and water penetration decreases to some extent for low volume alterations while higher decrements were observed for higher replacements. The joint replacement of CBA as PC and FNA for the level of 10% and 25% respectively resulted in satisfactory behaviour comparing to control concrete demonstrating the efficacy and potential of CBA for its successful application in concrete.

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来源期刊

Journal of Solid Waste Technology and Management Environmental Science-Waste Management and Disposal

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： The Journal of Solid Waste Technology and Management is an international peer-reviewed journal covering landfill, recycling, waste-to-energy, waste reduction, policy and economics, composting, waste collection and transfer, municipal waste, industrial waste, residual waste and other waste management and technology subjects. The Journal is published quarterly (February, May, August, November) by the Widener University School of Engineering. It is supported by a distinguished international editorial board.