Classes of Cement in Kenya, Types of Cement; There are various classes of cement in Kenya made to the exacting British Construction Standards and according to guidelines given by the Kenya Bureau of Standards, With various players in Kenya the main ones being Savannah Cement, East African Portland Cement, Rhino Cement, Bamburi Cement, Blue Triangle Cement, Simba Cement and Mombasa Cement. There are smaller players but these are the chief cement producers in Kenya. Below are some of the main classes of cement: –
There are 13 Types of Cement and each type has its specific Uses
Ordinary Portland Cement (OPC)
Portland Pozzolana Cement (PPC)
Rapid Hardening Cement
Quick setting cement
Low Heat Cement
Sulfates resisting cement
Blast Furnace Slag Cement
High Alumina Cement
Air En-training Cement
Classes of Cement in Kenya – Cement Class 32.5 N
This is the most commonly used cement with ordinary early strength. It is more suitable where high early strength is not required for construction. The ‘N’ in the cement class denotes normal strength and this type of cement is used in the construction of Foundations, Swimming Pools, Water tanks – concrete, Suspended slabs, Beams and Columns, Precast domestic applications, Brick and block making, Domestic floors, Plastering and brick laying plaster and Domestic Poles.
Classes of Cement in Kenya – Cement Class 32.5 R
This type of cement is used where high early strength is required for construction. The ‘R’ denotes rapid strength when curing. 32.5 R cement is used where high early strength is required for construction.
Recommended use of 32.5R
This grade of cement is suitable in normal usage where little binding strength is required, this includes; in plastering, tiles installation, walls building, septic tanks etc
Classes of Cement in Kenya – Cement Class 42.5 N
This is a stronger class of cement, able to withstand higher pressures and loads. This class of cement should be used when a higher initial strength is needed during the curing phase; mainly to support the weight of a heavy structure. This type of cement is used for heavy structures like Dams reservoir, bridges Road stabilization formulations, Silos – concrete, Underground tunnels – Subways, High rise buildings and structural concrete applications, Slip forming Reinforced Heavy duty surfaces – Foundations, Roads, Ports (Air and Sea port), Post- tensioning and pre-stressed slabs and beams, Spun pipe manufacturing, Pre-cast manufacturing, Medium and High strength concrete works
Curing is very much essential for any class of Cement and Construction.
For CEM-I, heat liberation rate is very high after adding of water to the cement. All other classes of cement, due to the mixing of Pozzolanic materials, heat liberation rates are low after adding of water when compared to Portland Cement.
Different projects, require different cement types. Always consult with construction professionals