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

Table 9

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

Testing date	Mass loss (%)
	M0	M25	M50	M75	M100
1^st week	0.00	0.00	0.09	0.11	0.17
2^nd week	0.31	0.41	0.50	0.67	0.69
3^rd week	0.59	0.61	0.79	0.85	0.92
4^th week	1.32	1.42	1.43	1.47	1.52
5^th week	2.10	2.18	2.22	2.31	2.43
6^th week	2.41	2.51	2.57	2.61	2.89
7^th week	2.89	3.12	3.37	3.51	3.79
8^th week	3.55	3.67	4.01	4.11	4.29
9^th week	4.20	4.46	4.81	5.09	5.21
10^th week	5.40	5.70	6.01	6.32	6.89