eprintid: 5971
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/59/71
datestamp: 2023-11-09 16:17:43
lastmod: 2023-11-09 16:17:43
status_changed: 2023-11-09 16:04:24
type: article
metadata_visibility: show
creators_name: Shafiq, N.
creators_name: Nuruddin, M.F.
creators_name: Khan, S.U.
creators_name: Ayub, T.
title: Calcined kaolin as cement replacing material and its use in high strength concrete
ispublished: pub
keywords: Calcination; Cements; Compressive strength; Concrete additives; Concretes; High performance concrete; Kaolin; Mechanical properties; Pozzolan; Silica fume; Temperature; X ray diffraction, Effects of temperature; Experimental investigations; High strength concretes; Metakaolins; Mineral admixtures; Properties of concretes; Silica fume concrete; Strength of concrete, Strength of materials
note: cited By 74
abstract: This experimental investigation has been carried out to examine the effects of temperature and duration on Malaysian kaolin to form highly reactive metakaolin. Metakaolin has been produced through the calcination process at temperatures 600-800 °C (1112-1472 °F) for the duration from 1 to 5 h. X-ray diffraction and loss on ignition are the usual process to identify the optimum temperature and duration of calcination required. In this study, to confirm the reactivity of metakaolin, compressive strength, splitting tensile and flexural strength of concrete at the age of 7, 28, 56 and 90 days have been investigated using locally produced metakaolin as cement replacing material. It was found that locally produced metakaolin enhance the mechanical properties of concrete and compressive strength is about 5 higher than silica fume concrete at the age of 28 days. This study divulges that calcination at 800 °C (1472 °F) for 3 h is the most suitable condition to convert kaolin into highly reactive metakaolin. © 2015 Elsevier Ltd. All rights reserved.
date: 2015
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924813191&doi=10.1016%2fj.conbuildmat.2015.02.050&partnerID=40&md5=3e11787353efc1eb097e53c829035b92
id_number: 10.1016/j.conbuildmat.2015.02.050
full_text_status: none
publication: Construction and Building Materials
volume: 81
pagerange: 313-323
refereed: TRUE
issn: 09500618
citation:   Shafiq, N. and Nuruddin, M.F. and Khan, S.U. and Ayub, T.  (2015) Calcined kaolin as cement replacing material and its use in high strength concrete.  Construction and Building Materials, 81.  pp. 313-323.  ISSN 09500618