Compatibility of a new generation polycarboxylate-type superplasticizer with different set accelerator

FELEKOĞLU B., Baradan B., Sarikahya H., Yüceer L.

2005 International Congress - Global Construction: Ultimate Concrete Opportunities, Dundee, Birleşik Krallık, 5 - 07 Temmuz 2005, ss.89-96, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Dundee
  • Basıldığı Ülke: Birleşik Krallık
  • Sayfa Sayıları: ss.89-96
  • Anahtar Kelimeler: Accelerators, Early strength development, Flowability, Polycarboxlate-type superplasticizer, Setting time
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

New generation polycarboxylate based superplasticizers have many advantages such as high water reducing capacity and strong plasticising effect when compared with traditional sulfonate or lignine based admixtures. However, the effect of temperature change on the mechanism of these plasticizers and compatibility with traditional set accelerators are not fully understood. The aim of this study is to investigate the effect of these parameters on cement paste mixes incorporating polycarboxylate based superplasticizers. The results of this study showed that when the slump retention is in question AC2 (Organo metalic complex of calcium formeate) and AC3 (Triethanolamine) accelerators were found to be in conformity with polycarboxlate-type superplasticizers. On the other hand, the conformity of ACS (Nitride and nitrate mixture) accelerator showed the best performance to obtain high early strengths without causing any detrimental flowability loss with time.