Which is contain one type of cement only such as Ordinary Portland Cement (OPC) or Sulphate resistance Portland cement(SRC), the using of normal mix for blinding or the normal building without any special requirement.
Which is contain more than one type of cement or cement replacement such as GGBS, Fly Ash or Silica Fume, those cement replacement using to extend the service life of the structure
HIGH PERFORMANCE CONCRETE
Which is a very high strength 60 N/mm2 and above or special concrete such as Self compacted Concrete (S.C.C) or concrete with special additives such as water proof material or corrosion inhibitor materials.
The density of the normal concrete 2400 to 2500 Kg/M3 while the density of the light weight concrete should be less than 2000 Kg/M3, to achieve the required density we are using so many type of lightweight materials such as Perlite, Leca, Lytag and some time with air entraining admixture.