40 T0 100 Mm Of Stone

Penetraion is 30 t0 40 mm by 25 deg tem.Allinterview.Com.Categories.Bitumen grades are 30-40,60-70, 80-100.What is mean by 30-40.Question posted / bhuwan.Single /two story houses with a view of economy in construction.What advantages it will give if you use machine crushed stone in place? 1029 what is change order request?.