Title:
Permeation Properties of Self-Consolidating Concretes with Mineral Admixtures
Author(s):
Erhan Guneyisi, Mehmet Gesoglu, and Erdogan Ozbay
Publication:
Materials Journal
Volume:
108
Issue:
2
Appears on pages(s):
150-158
Keywords:
chloride ingress; durability; mineral admixture; permeability; self-consolidating concrete
DOI:
10.14359/51682308
Date:
3/1/2011
Abstract:
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/yd3 (550 kg/m3). 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.