Title : LONG-TERM COMPRESSIVE STRENGTH AND DRYING SHRINKAGE OF AN ECO-FRIENDLY BINDER USING TERNARY MIXTURE OF INDUSTRIAL WASTES
Authors : Hoang-AnhNguyen Ta-PengChang, Chun-Tao Chen Yu-Wen Liu Tien-Dung Nguyen
Publication : 8 - 10, October 2015
Volume : 1
Pages :
Price : 250
Abstract : The aim of this study is to explore the compressive strength and drying shrinkage of mortar and paste withan eco-friendly binder denoted by SFC cement, produced by a ternary mixture of industrial waste materials of ground granulated blast furnace slag (S),Class F fly ash (FFA) and circulating fluidized bed combustion fly ash(CFA). CFA15%by weight acting as an alkaline sulfate activator was added to the blended mixture of slag and FFA to trigger the hydration. There is no degradation of compressive strength of the SFC mortars up to 360 days instead of the further increases. Comparison showed that the SFC pastes had drying shrinkage significantly smaller than the ordinary Portland cement (OPC) pastes. The increase in FFA as replacement for GGBFS was encouraged to improve the workability and drying shrinkage of such innovative cementing binder.