Title:
Effects of High-Lime Fly Ash Content on Water Demand, Time of Set, and Compressive Strength of Concrete
Author(s):
Tarun R. Naik and Bruce W. Ramme
Publication:
Materials Journal
Volume:
87
Issue:
6
Appears on pages(s):
619-626
Keywords:
compressive strength; concretes; fly ash; fresh concretes; tests; lime fly ash; mix proportioning; setting (hardening); water-cement ratio; workability; Materials Research
DOI:
10.14359/2547
Date:
11/1/1990
Abstract:
Presents research performed to report the effects of high-lime (Class C) fly ash on water demand, workability, time of set, and compressive strength of concrete. Tests were carried out on nominal 3000, 4000, and 5000 psi structural grade concrete, utilizing fly ash produced at a Wisconsin power plant. Fly ash replacement improved workability, decreased water demand, and increased strength. The initial and final set times were not significantly different when fly ash replacement was increased to levels of 55 percent.