There are three main types of concrete grades that are commonly used. Portland Pozzolana Cement (PPC), General Purpose or Ordinary Portland Cement (GPC or OPC), or Portland Slag Cement (PSC). For use under plaster the Ordinary Portland Cement (OPC) is best, and commonly used in most commercial concreting work. Read MoreWhich cement is best for plaster in commercial works?

Along with slab floors, it’s recommended that 4 inches is the minimum thickness achieved for concrete driveways. If only passenger cars will be going over the surface, non-reinforced concrete is suitable. However if bigger vehicles like trucks or caravans will be moving over it, a thicker depth of 5 inches is best. Read MoreWhat is the best thickness for a concrete driveway?