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

Table 8

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

Testing date	Mass loss (%)
	M0	M25	M50	M75	M100
1^st week	0.00	0.00	0.00	0.00	0.00
2^nd week	0.21	0.21	0.25	0.27	0.40
3^rd week	0.47	0.49	0.53	0.57	0.61
4^th week	0.89	0.89	0.92	0.95	1.01
5^th week	1.20	1.21	1.32	1.32	1.35
6^th week	1.50	1.60	1.60	1.61	1.65
7^th week	1.90	1.90	2.00	2.10	2.22
8^th week	2.40	2.50	2.52	2.63	2.80
9^th week	2.90	3.00	3.09	3.12	3.27
10^th week	3.51	3.52	3.60	3.71	3.91