Skip to main content
. 2011 Aug 24;8(8):3496–3513. doi: 10.3390/ijerph8083496
Mica.................................................. 20.0% Maximum
Water Absorption.............................. 2.0% Maximum
Sodium Sulfate Soundness, Loss...... 5.0% Maximum
Plasticity Index.................................. Non-plastic
Clay and clay lumps.......................... 5.0% Maximum