High volume fly ash abrasion resistant concrete


Atis C.

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, cilt.14, sa.3, ss.274-277, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Konu: 3
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1061/(asce)0899-1561(2002)14:3(274)
  • Dergi Adı: JOURNAL OF MATERIALS IN CIVIL ENGINEERING
  • Sayfa Sayıları: ss.274-277

Özet

In this work, the abrasion resistance of high volume fly ash concrete was investigated. Concrete mixtures containing a large amount of fly ash replacing the cement in mass basis at 50 and 70% were prepared with various water-cementitious material ratios. A specially selected superplasticizer was employed to maintain the workability of the concrete. Volume loss of the specimen was considered as the abrasion value measured using a Dorry abrasion machine. Comparisons were made between normal portland cement (NPC) concrete and fly ash concrete. Comparisons were also made between fly ash concretes with 50 and 70% replacement. Investigation results have shown that the abrasion resistance increased as compressive strength increased. Analysis of the results showed that, for high strength grades (>40 MPa), the abrasion resistance of high volume fly ash concrete with 70% replacement with cement was found to be higher than that of counterpart control NPC concrete and concrete made with 50% fly ash. Superplasticizer and curing conditions have no significant influence on the general trend of the abrasion of concrete studied.