mix 10 min at medium speed. "attagel" 36/8.0 clay/surfactant ratio/6/1 mineral content (wt%)/28.7 "arquad" 2C-75/1.3 typical asphalt properties: mix 10 min at medium speed. softening Pt. (ring & ball)/150-170 F needle penetration/25-40 cutback solids/60%/wt. saybolt visc/140-190 s @ 120 F asphalt cutback/30.0 mix 2 min at slow speed. asphalt cutback/40.0 wollastonite/20.7