The Compressive Strength and Resistivity toward Corrosion Attacks by Chloride Ion of Concrete Containing Type I Cement and Calcium Stearate

Table 4

Percentage reduction of compressive strength.

	20 MPa concrete			30 MPa concrete			40 MPa concrete
Calcium stearate content (% by cement weight)	0.25	1.27	2.53	0.21	1.07	2.48	0.19	0.90	1.87
Reduction of compressive strength (%)	7.0	17.2	36.4	-10.1	26.1	15.7	3.7	2.6	11.1