تأثير الملدن الفائق و حجر الكلس المضاف على خواص الخرسانة الطرية و المتصلبة

الملخص EN

This research is deliberate the effect on some characteristics of fresh and hard ordinariness concrete with 1 : 1.5 : 3 mix ratio and cement content ٣٨٠ kg / m ) ٣slump, Compressive, Splitting Tensile, Water Absorption, Ultrasonic pulse velocity) when amount of the cement is replaced as binder by limestone filler.

The amount of replacement of cement with filler varied between 5 and 25 weightpct.

Of the total amount of cement with variation percentage 5 %.

Research is show the effect of addition superplasticizer with % (٢،٣ ،١) weightpct.

Of cement on above properties mixture.

and show the effect of using tow added in mix in one time with a same percentages.

Results is show that can replaced ٢٥ weightpct.

of cement with limestone filler and addition % ٣ superplasticizer for concrete admixture with little increase in Compressive, Splitting Tensile strength and decrease in slump, Water Absorption concrete compare with reference mixture without added and same age.