Then it was immersed in water such that about 50 mmwater was maintained on the top surface of the specimen. Then the final weight was noted after 48 h. The values were compared with the water absorption values of the non-acid attacked specimens.
Then it was immersed in water such that about 50 mmwaterwas maintained on the top surface of the specimen. Then the finalweight was noted after 48 h. The values were compared with thewater absorption values of the non-acid attacked specimens.