Ultrafine Cement, Microfine Cement

We are offering ultrafine cement, microfine cement.
microfine cements are blast furnace slag based cements composed of ultrafine particles and are designed for injection into loose soils, rock and concrete. They feature a maximum grain size ranging from a d95 of 6µm to a d95 of 16µm. Depending on the application and the permeability of the strata, different grain size can be used. It is suited for stabilizing or sealing all earthen foundations; especially for permanent structures such as tunnels, dams, deep foundations and oil storage tanks. Because they cure into a hardened concrete, microfine cements cause no pollution to underground soils or water supplies.
benefits:≥
-excellent penetration in tight joints, fissures and pore spaces
-improved water tightness following proper application
-better working environment
-improved grouting efficiency and less waste
technical data
product unit dmfc-600 dmfc -800 dmfc -1200
appearance grey powder grey powder grey powder
odor none none none
toxic none none none
specific gravity kgdm3 ～3 ～3 ～3
specific surface area m2kg ≧600 ≧800 ≧1200
grain size d50 µm ＜6.75 ＜4.38 ＜3.21
grain size d90 µm ＜16.31 ＜9.68 ＜7.55
grain size d95 µm ＜22.97 ＜12.86 ＜10.51
setting times
(measured by vicat needle) initial set min 60 120 60-120
final set min 120 150 120-150
compressive strength 3 d mpa 25 25 25
7 d mpa 45 45 45
28 d mpa 60 60 60.