Permeation Properties of Self-Consolidating Concretes with Mineral Admixtures
Yükleniyor...
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Concrete Inst
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper addresses the permeation properties of self-consolidating concretes (SCCs) with different types and amounts of mineral admixtures. Portland cement (PC), metakaolin (MK), fly ash (FA), and ground-granulated blast-furnace slag (GGBFS) were used in binary, ternary, and quaternary cementitious blends to improve the durability characteristics of SCCs. For this, a total of 22 SCCs were designed that have a constant water-binder ratio (w/b) of 0.32 and a cementitious materials content of 926.75 lb/yd(3) (550 kg/m(3)). In addition to compressive strength and ultrasonic pulse velocity the permeation resistance of SCCs was determined by means of chloride ion permeability water permeability, and sorptivity tests. The test results indicated that the permeation properties of SCCs appeared to be very dependent on the type and amount of the mineral admixture used; the SCC mixtures containing MK were found to have considerably higher permeability resistance than the control mixture.
Açıklama
Anahtar Kelimeler
chloride ingress, durability, mineral admixture, permeability, self-consolidating concrete
Kaynak
Aci Materials Journal
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
108
Sayı
2
