Strength Properties of High-Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates

Table 3

Mixing proportions of the CBA concrete.

Mixture	Replacement of fine aggregates with CBA (%)	W/C	Water	Unit content (kg/m^3)
				Cement (OPC)^a	Natural coarse aggregates	Natural fine aggregates	CBA	HWRA^b (0.6% × cement)
M00	0	0.3	178.5	595.0	878.5	663.0	0.0	3.6
M25	25	0.3	178.5	595.0	878.5	497.2	117.7	3.6
M50	50	0.3	178.5	595.0	878.5	331.5	235.3	3.6
M75	75	0.3	178.5	595.0	878.5	165.7	353.0	3.6
M100	100	0.3	178.5	595.0	878.5	0.0	470.7	3.6

^aOPC: ordinary Portland cement. ^bHWRA: high water-reducing agent.