| Economic and environmental considerations have promoted the use of supplementary cementing materials (SCMs) such as slag cement (SC) and fly ash (FA). Ternary mixtures containing both slag cement and fly ash have gained popularity due to environmental issues and shortages in the supply of cement. However, in the 2003 AHTD Standard Specifications, ternary mixtures were prohibited for use in Portland Cement Concrete Pavement (PCCP). Previous research conducted by the University of Arkansas examined ternary mixtures containing SC and FA and cured at 70 F. The research program described in this thesis examined the behavior of ternary mixtures cured at lower temperatures. For this study, SC contents ranged from 0 to 40 percent, and the FA contents ranged from 0 to 60 percent. Six different mixtures containing Class C FA and Grade 100 SC were batched and tested at temperatures at and below 70 F. The curing temperatures for the study were 33, 40, 50, 60, and 70 F. The concrete properties measured were concrete temperature, slump, unit weight, air content, time of setting, and compressive strength. |
