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Thursday, 9 April 2020

TYPES OF CEMENT

                                 TYPES OF CEMENT

Name of structure                                  
Name of cement
Why

Construction and masonary work
Ordinay Portland cement
As it consists of silicates of alumina and calcium carbonates
Marine structures and dam construction
Portland pozzalana cement
It consists of gypsum and pozzalanic materials which gives it power of hydrating cement
Construction of pavement
Rapid hardening cement
It has high strength because of the presence of Tri-calcium silicates in high amount in OPC.its initial setting time is 30 minutes  and final 600 minutes so used for rapid construction projects
Underwater construction and construction in rainy seasons
Quick setting cement
It consists of clinker and aluminium silicate which increases the hydration power of silicate.its initial setting time is 5 minutes and final 30 minutes
Construction of chemical plants and wind turbine plinths
Low heat cement
It produces low heat during setting time and it has reduced heat of hydration.
Effluent treatment plans , chimney , water storage , cooling towers
Sulphate resisting cement
As it reduces sulphet attacks in concrete
Seawater construction
Blast furnance cement
As it is highly sulphate resistant
Construction of workshops
High alumina cement
It contains high amounts of alumina and lime and can be subjected to high temperatures
Construction of traffic barriers and swimming pools
White cement
As it has good colour
Tunnel and submerged construction
Hydrophobic cent
As it contains clinkers with water repellent film substances and so it resists hydration process.these chemicals form a layer on the cement particles and do not allow water to mix andstart the hydration process.






                                      NANDINI SHAW

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