Resistance of Recycled Aggregate Concrete (RAC) Subjected to Drying-Wetting Cycles to Attack of Magnesium and Sodium Sulfates

Table 6

Mass loss percentages of concrete specimens partially immersed in 4.5% magnesium sulfate solutions of reference and modified mixtures.

Testing date	Mass loss (%)
	M0	M25	M50	M75	M100
1^st week	0.20	0.20	0.21	0.22	0.25
2^nd week	0.57	0.60	0.72	0.85	0.90
3^rd week	1.37	1.41	1.60	2.20	2.30
4^th week	2.72	2.82	3.80	3.90	3.90
5^th week	4.30	4.40	5.20	5.40	5.60
6^th week	6.00	6.50	7.70	7.90	8.20
7^th week	7.20	7.60	8.60	9.40	10.60
8^th week	7.90	8.70	9.90	13.20	13.50
9^th week	8.70	10.1	11.80	14.70	15.60
10^th week	9.90	11.20	13.20	16.10	18.40