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

Table 10

Mass loss percentages of concrete specimens of reference and modified mixtures partially immersed in 6.5% sodium sulfate solution.

Testing date	Mass loss (%)
	M0	M25	M50	M75	M100
1^st week	0.09	0.09	0.11	0.18	0.23
2^nd week	0.41	0.42	0.59	0.99	1.31
3^rd week	1.28	1.31	1.47	1.82	2.22
4^th week	2.01	2.17	2.37	3.21	3.43
5^th week	3.45	3.52	3.72	4.01	4.32
6^th week	3.92	3.95	4.01	5.12	5.49
7^th week	4.51	4.61	4.92	5.92	6.71
8^th week	5.20	5.30	5.78	6.57	7.42
9^th week	5.62	5.72	6.39	7.21	8.11
10^th week	6.23	6.37	7.21	8.11	9.60