Sand, medium Diameter: 1.0-3.0 mm used in the cement and concrete to compression formation. Plaster walls, basement floor beams are not commonly used in the concrete mix that is very light weight than coarse sand.
1.0 to 3.0 mm in diameter, the sand used in concrete mortar to compressive strength. Plasterwork underground beam is used to mix concrete is lighter than the heavy, coarse sand.
Sand medium diameter 1.0-3.0 mm. Used to concrete mortar to compressive strength plaster basement slabs, beams, is not commonly used in ผสมคอนกรีต receiving much weight is lighter in color than the sand.