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

Table 5

Mass loss percentages of concrete specimens partially immersed in a 2.5% magnesium sulfate solution of reference and modified mixtures.

Testing date	Mass loss (%)
	M0	M25	M50	M75	M100
1^st week	0.20	0.20	0.20	0.21	0.22
2^nd week	0.57	0.59	0.61	0.82	0.85
3^rd week	1.30	1.37	1.42	2.00	2.10
4^th week	2.70	2.80	3.00	3.20	3.70
5^th week	4.00	4.20	4.40	4.70	5.10
6^th week	5.80	6.00	6.40	7.30	7.80
7^th week	6.90	7.20	7.60	9.00	10.00
8^th week	7.70	8.00	8.80	12.10	12.50
9^th week	8.60	9.20	10.00	13.80	14.70
10^th week	9.50	10.20	11.00	15.10	17.20