تصفح Engineering Journal of Qatar University - [From 1988 TO 2005] حسب المؤلف "Shalal, A. R."
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Effect of sulphates in cement (containing 5% pozzolana) and in sand on the correlation between compressive strength and u.p.v. of concrete of different mixes
Shalal, A. R. ( Qatar University , 1990 , Article)Sulphates may be found in any of the raw materials of cement. Sand contaminated with sulphates is currently a local problem because of the difficulty in obtaining well-graded sand which could be used in concrete that has ...