The effect of using saturated lightweight aggregate on shrinkage and hydration degree of high performance concrete

DAVRAZ M., GÜNDÜZ L.

Science and Engineering of Composite Materials, cilt.16, sa.4, ss.225-234, 2009 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 4
  • Basım Tarihi: 2009
  • Dergi Adı: Science and Engineering of Composite Materials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.225-234
  • Anahtar Kelimeler: Autogenous shrinkage, Compressive strength, Degree of hydration, Saturated lightweight aggregate
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Hayır

Özet

Deformations named as autogenous (chemical + autogenous) shrinkage related to parameters of cement dosage, water/cement ratio etc. in high performance concretes are studied. Prevention of autogenous shrinkage with outer water curing is not possible. In this research, the effects of three different lightweight aggregate types used as internal water reservoir in high performance concrete were analyzed on shrinkage, hydration degree and strength properties in different curing media. The research findings show that -1/+2 mm saturated lightweight aggregates in concrete samples of 40% relative humidity medium reduce the autogenous shrinkage, improve the hydration degree and increase the compressive strength.