A New Microstructure Development Model for the Evaluation of Concrete Setting Time

Table 1

Mix proportions used to determine the critical volume ratio.

w/c ratio	Fine aggregate ratio	Unit content of weight (kg/m^3)
		Cement	Water	Fine aggregate	Coarse aggregate
0.37	0.38	446	165	665	1,085
0.47	0.42	351	165	767	1,060
0.57	0.45	289	165	845	1,032