Reviewing the role of coal bottom ash as an alternative of cement

被引：98

作者：

Singh, Navdeep ^{[1
]}

Shehnazdeep ^{[1
]}

Bhardwaj, Anjani ^{[1
]}

机构：

[1] Dr BR Ambedkar Natl Inst Technol, Dept Civil Engn, Jalandhar 144011, Punjab, India

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 233卷

关键词：

Concrete; Coal bottom ash; Microstructure; Mechanical and durability properties; FLY-ASH; MECHANICAL-PROPERTIES; COMPRESSIVE STRENGTH; HIGH-VOLUME; PARTIAL REPLACEMENT; CONCRETE; WASTE; FINE; DURABILITY; RESISTANCE;

D O I：

10.1016/j.conbuildmat.2019.117276

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Coal bottom ash (CBA) is a by-product of coal industry and is produced in large extent from coal fired thermal power plants. Utilization of CBA in the manufacturing of concrete proposes economic and ecological way of its disposal. Simultaneously, its usage conserves the natural resources and promotes sustainability. This review article focuses on the utilization of CBA incorporated in place of Portland Cement (PC) used in manufacturing of concrete. The reduction in particle size of CBA leads to increase in surface area while its incorporation as partial replacement of PC feedbacks in improved strength, durability and microstructural features of concrete. The studies related to the use of CBA are scarce in quantum till date in which various properties of concrete have been investigated. Since the current area needs more attention as most of the investigations have favoured in use of CBA as partial replacement of PC whereas few of them have reported against its use. The current investigation reviews fresh, mechanical, durability properties and microstructural characteristics of concrete made with partial incorporation of CBA. The literature demonstrates that CBA has significant potential to be used as replacement of PC for structural grade concrete. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：16

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