Abstract
The relative sulfate resistance of cements available in Jordan are evaluated using different test methods. The cements included a pozzolanic portland with about 15% natural pozzolan addition, two ordinary portland cements, a sulfate resisting portland and a white cement. The test methods involved storing cubic, briquette and prismatic mortar specimens in the Dead Sea and Red Sea waters, in sodium and magnesium sulfate solutions and studying their deterioration through visual observations, ultrasonic pulse velocity measurements and relative strength determinations. The visual deterioration index concept used to follow the condition of the test specimens was found to be very useful. ASTM C 452 and C 1012 test methods were also applied. According to the results the pozzolanic portland along with the sulfate resisting cement performed better than the others. However, the behavior of the sulfate resisting cement in Dead Sea water was not satisfactory.
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