Journal Published Online: 04 December 2017
Volume 46, Issue 1

The Study of UHPC Precast Concrete Containing Incinerator Fly Ash

CODEN: JTEVAB

Abstract

The objective of this study was to evaluate ultra high performance concrete (UHPC) as a precast product material containing portland type II cement, quartz powder, silica fume, silica sand, steel fiber, superplasticizer, water, and a specific amount of incinerator fly ash (IFA). The UHPC mixes containing different volumes of IFA were evaluated to find the optimum quality of precast production, while 2.5 % of steel fiber by volume was blended at every mix. The results indicate that the properties of UHPC exhibit high strength, ductility, and bonding stress. The compressive strength of UHPC decreases greatly as IFA for part replacement of cement or quartz powder increases. However, the flexural strength of UHPC decreases a little as IFA for part replacement of quartz powder increases. The results demonstrate that the UHPC products with 10 % or 15 % IFA were able to withstand a 98-kN proof load to the cover and frame without cracks or permanent deformation. It has to be noted that heavy metals that originated in the IFA are confined in the UHPC matrix and yield rather low leachability results.

Author Information

Lee, Ming-Ju
Department of Nursing and Management, Jen-Teh Junior College of Medicine, Taiwan, Republic of China
Lee, Ming-Gin
Department of Construction Engineering, Chaoyang University of Technology, Taiwan, Republic of China
Su, Yu-Min
Department of Civil Engineering, Kaohsiung University of Applied Sciences, Taiwan, Republic of China
Huang, Yishuo
Department of Construction Engineering, Chaoyang University of Technology, Taiwan, Republic of China
Tung, Wen-Chih
Department of Construction Engineering, Chaoyang University of Technology, Taiwan, Republic of China
Pages: 8
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE20160348
ISSN: 0090-3973
DOI: 10.1520/JTE20160348