Effect of cooling regimes on compressive strength of concrete with lightweight aggregate exposed to high temperature

Karakoc M. B.

CONSTRUCTION AND BUILDING MATERIALS, cilt.41, ss.21-25, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.conbuildmat.2012.11.104
  • Dergi Adı: CONSTRUCTION AND BUILDING MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.21-25
  • Anahtar Kelimeler: Cooling regime, High temperature, Pumice aggregate, Expanded perlite aggregate, HIGH-PERFORMANCE CONCRETE, EXPANDED PERLITE AGGREGATE, ELEVATED-TEMPERATURES, MECHANICAL-PROPERTIES, RESIDUAL STRENGTH, PORE STRUCTURE, BEHAVIOR, HSC, FIRE
  • İnönü Üniversitesi Adresli: Evet

Özet

In this study, the residual compressive strength of concrete with expanded perlite aggregate (EPA) and pumice aggregate (PA) after it was exposed 700 degrees C and then cooled in three cooling regimes (natural, water and furnace cooling) at w/b ratio for 0.25, 0.30, 0.35 was investigated. EPA and PA replacements of fine aggregate were used 10%, 20%, and 30%. Test results showed that the compressive strength of concrete cooled in water cooling after being exposed to the effect of different mixture with EPA and PA is higher than that cooled in natural and furnace. Based on the test results, the compressive strength of concrete cooled in water, furnace and natural cooling decreased by an average of 78%, 81% and 83%, respectively, when compared to control samples. (C) 2012 Elsevier Ltd. All rights reserved.