Alkali-Silica Reaction Expansions and the Extent of Alkali Leaching in Concretes Containing Basalt and Waste Glass as Aggregate

YÜKSEL C., MARDANI AGHABAGLOU A., Beglarigale A., YAZICI H., RAMYAR K., ANDİÇ ÇAKIR Ö.

TEKNIK DERGI, cilt.28, sa.2, ss.7865-7882, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.18400/tekderg.304100
  • Dergi Adı: TEKNIK DERGI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.7865-7882
  • Anahtar Kelimeler: Alkali silica reaction, alkali leaching, basalt, waste glass, (ASR)-PERFORMANCE TESTING INFLUENCE, SPECIMEN PRETREATMENT, EXPOSURE CONDITIONS, PRISM SIZE
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Alkali-silica reaction (ASR) which takes place between amorphous silica in the aggregate and alkalis in the pore fluid is one of the durability problems causing deterioration of mortars. In this study, alkali-silica reactivity of various mixtures was evaluated according to AAR-3 and AAR-4 tests developed by RILEM. For determining the extent of alkali leaching from the specimens during these accelerated tests, samples were taken from the water accumulations at the bottom of the containers and sodium and potassium concentrations were determined using atomic absorption spectrometry. Results show that although a significant amount of alkalis can leach out, particularly waste glass aggregate leads to considerably high expansion levels.