Title:
Effect of Ground Copper Slag on Strength and Toughness of Cementitious Mixes
Author(s):
Antonio M. Arino and Barzin Mobasher
Publication:
Materials Journal
Volume:
96
Issue:
1
Appears on pages(s):
68-73
Keywords:
compressive strength; copper; fly ash; slag; cements; strength
DOI:
10.14359/430
Date:
1/1/1999
Abstract:
The effect of ground copper slag (GCS) on the strength and fracture of cement-based materials is studied. Up to 15 percent by mass of ground copper slag was used as a portland cement replacement. The strength and fracture toughness of concrete samples were studied using closed-loop controlled compression and three-point bending fracture tests. The compression test utilized a combination of the axial and transverse strains as a control parameter to develop a stable post-peak response. A cyclic loading- unloading test was conducted on three-point bending notched specimens under closed-loop crack mouth opening control. Test results were used to construct the resistance curve (R-curve) response of the specimens by describing the dependence of fracture toughness on the stable crack length.