TCVN 7572-5-2006 Aggregates for concrete and mortar.Test methods.Part 5: Method for determination of apparent specific gravity, bulk specific gravity and water absorption of original stone and coarse aggregate particles
2008TCVN 7572-5-2006 Aggregates for concrete and mortar.Test methods.Part 5: Method for determination of apparent specific gravity, bulk specific gravity and water absorption of original stone and coarse aggregate particles