Influences of Metakaolin on the Durability and Mechanical Properties of Mortars

Yazici S. , Arel H. S. , Anuk D.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, cilt.39, ss.8585-8592, 2014 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 39 Konu: 12
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1007/s13369-014-1413-z
  • Dergi Adı: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
  • Sayfa Sayısı: ss.8585-8592

Özet

In this paper, the effects of the use of metakaolin instead of cement on the mechanical properties of mortars, high temperature, alkali-silica reaction, resistance to sulfate, absorption capacity and permeability were studied. In the study, 0, 5, 10, 15 and 20 % cement was replaced by metakaolin by weight to design five different types of mortar. 1-, 3-, 7-, 28-, 56-, 90- and 180-day compressive and flexural strengths and 28-day absorption capacity were determined. Similarly, compressive strength loss in mortar exposed to 200, 500 and for 3 h was determined. The resistance of mortars containing metakaolin to sulfate and alkali silica reaction was determined in accordance with ASTM C 1012 and ASTM C 1260 standards, respectively. It was found that the use of metakaolin had a positive effect on the mechanical properties of the mortars positively and that it reduced the absorption capacity and degrees of expansion caused by ASR and sulfate attack.