Influence of Palm Oil Fuel Ash and W/B Ratios on Compressive Strength, Water Permeability, and Chloride Resistance of Concrete

Table 5

Compressive strengths and chloride ion penetrations of the types of concrete.

Mix	Compressive strength (MPa)-normalized (%)		Total charge passed (coulombs)-normalized (%)
	28 days	90 days	28 days	90 days
40CT	50.2-(100)	55.9-(100)	3236-100	1891-100
40P15	46.2-(92)	52.8-(94)	1798-56	823-44
40P25	43.3-(86)	50.9-(91)	1089-34	661-35
40P35	40.0-(80)	45.8-(82)	994-31	584-31
50CT	39.6-(100)	41.9-(100)	4507-100	3590-100
50P15	36.4-(92)	39.5-(94)	2140-47	1012-28
50P25	34.6-(88)	35.5-(85)	1459-32	890-25
50P35	31.7-(80)	33.9-(81)	1151-26	830-23