Utilization of weathered phosphogypsum as set retarder in Portland cement

Altun I., Sert Y.

CEMENT AND CONCRETE RESEARCH, vol.34, no.4, pp.677-680, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 4
  • Publication Date: 2004
  • Doi Number: 10.1016/j.cemconres.2003.10.017
  • Journal Name: CEMENT AND CONCRETE RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.677-680
  • Keywords: phosphogypsum, waste management, cement, CITRO-GYPSUM
  • Dokuz Eylül University Affiliated: No

Abstract

In this study, usability of weathered phosphogypsum (PG) from residue areas as set retarder in Portland cement was investigated. The effects on the setting and mechanical properties of PG added in ratios 1, 3, 5, 7, 10, and 12.5 wt.% to Portland cements were studied and compared with a Portland cement containing natural gypsum (NG). It was found that PG can be used in place of NG for Portland cement according to Turkish standards. The highest 28-day compressive strength was found in the sample with 3 wt.% PG. (C) 2004 Elsevier Ltd. All rights reserved.