Influence of elevated temperatures on the mechanical properties and microstructure of self consolidating lightweight aggregate concrete


Andic-Cakir O. , HIZAL S.

CONSTRUCTION AND BUILDING MATERIALS, cilt.34, ss.575-583, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 34
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.conbuildmat.2012.02.088
  • Dergi Adı: CONSTRUCTION AND BUILDING MATERIALS
  • Sayfa Sayıları: ss.575-583

Özet

Self consolidating lightweight concrete (SCLWC) mixtures were prepared by using two different lightweight coarse aggregates and by replacing normal weight crushed coarse limestone aggregate at a constant water/powder ratio. One of the SCLWC mixtures was also prepared at different water/powder ratios. All the mixtures were exposed to 300, 600 and 900 degrees C, respectively. Lightweight aggregate type and water/powder ratio affect water transport characteristics and resistance of the mixtures to elevated temperatures. The microstructural investigation findings are consistent with thermal strain and residual mechanical properties of the mixtures after exposure to high temperatures. (C) 2012 Elsevier Ltd. All rights reserved.