Hello everybody.... I most reach 2,100 PSI resistency mixing asphalt pavement (4" asphalt plus 8" base course) adding cement or whatever; I know that adding 18% of cement could be reach, but is prohitib expensive... There is any other way to get it ? This new mix will be use as a pavement layer (course), meaning that is very important the relation betwen water-soil... I appreciate for advance