INFLUENCE OF THE AIR-ENTRAINING ADMIXTURE WITH DIFFERENT SUPERPLASTICIZERS ON THE FREEZE-THAW RESISTANCE OF CEMENT MORTARS


ÖZTÜRK A., ERDEM R. T.

REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS, cilt.46, sa.1, ss.75-81, 2016 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 1
  • Basım Tarihi: 2016
  • Dergi Adı: REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.75-81
  • Manisa Celal Bayar Üniversitesi Adresli: Hayır

Özet

Compatibility of different based superplasticizers with air-entraining admixture has been investigated. Physical and mechanical properties such as flow, setting time and compressive strength of cement mortars incorporating an air-entraining admixture (HS) with naphthalene sulfonate (SPNS) and modified polymer (SPMP) based admixtures have been determined. Also, the effects of their combinations on the freeze-thaw resistance of cement mortars have been determined. All admixtures are used with three different ratios and one of them is for overdosage effect. Results indicate that cement mortars having lowest early strength values are mortars incorporating 1.5% SPMP and 2.0% SPNS by mass of cement. The most effective series for the ultimate highest strength values were series with 0.05 % HS and 0.8 % SPMP. The freeze-thaw resistances of cement mortars were investigated for 50, 100, 150 and 200 freeze-thaw cycles. Indeed, the most effective series for freeze-thaw resistance were series with 0.05 % HS and 0.8 % SPMP.