Cement
Cement is a binding material used to bind different type of construction materials together it is formed from argillaceous siliceous calcareous ect.
by twisting this internal mix ratio and by altering the chemical inputs special type of cement can be produced according to their needs
Apart from the gernal type that we are using in day to day activity there are some special cement type available in the market the below table will explain that in brief
Types of cement
- Rapid hardening Portland cement
- Sulphate resisting cement
- Low heat cement
- Quick setting cement
- Portland pozzolana cement
- High Alumina cement
- Coloured cement
- White ordinary Portland cement
- Ordinary Portland cement
(Rapid hardening Portland cement )
(Composition)
RHPC manufactured by combining lime stone finely grounded and shale at high temperature
(Situatuions )
These type of cement is used where high strength is need to be achieved in inital
stage quickly
(Purpose)
Road pavement work and precast concrete casting beams columns ect.
(Sulphate resisting cement)
( Composition)
SRC is manufactured with less than 5% calcium aluminate to with stand sulphate attack
( SiTUATUIONS)
This type of cement is used where the concrete is direct contact with soil which has high sulphate content
( PURPOSES)
Pile Foundation and in coastal area works and sewage and water treatment plant
(Low heat cement)
These type cement is produced by lowering the amount for try calcium aluminate c3a and die calcium silicate c2s
(SITUATUIONS)
These type of cement is used in mass construction like dance and in highway resistance required are
( Purpose)
Mass construction Danes contraction hydraulic engineering concrete retaining wall construction etc.
(Quick setting cement)
( composition)
This type of cement is manufactured by reducing the amount of Gypsum and adding small amount of Aluminium Sulphate to accelerate setting time of cement
( SITUATUIONS)
As the name suggest it is used where the work needs to be done quickly
( Purpose)
In underwater construction and in cold and rain weather condition
( Portland pozzolana cement)
( composition)
PPC is manufactured by adding pozzolanic materials such as sly as shales clays ect.
(SITUATUIONS)
It gains high compressive strength with age and like rapid hydroline cement it is cheap and affordable
( Purpose)
It is cheap and affordable and mainly used in building construction where strength required with age and water tightness
( High Alumina cement)
(Composition)
HAC or CAC is produced from limestone chalk and Bauxite
(SiTUATUIONS)
This cement is used in construction of refineries factory or other workshop type structure because HAC age counter to high temperature
( purpose)
Used in sewage structure and in acidic structures
( Coloured cement)
( composition)
Coloured cement is manufactured by mixing colour pigments 5 into 10% with opc
(SITUATUIONS)
As the name suggest it is used where coloured cement required for any athletic purpose
( purpose)
Artificial marble floor finishing
(White ordinary Portland cement)
(Composition)
WOPC is name as the ordinary Portland cement except the colour
(SITUATUIONS)
WOPC used in whitewashing purpose for testing purpose
( purpose)
Used as a base coat before painting and used to cover the hairline cracks on concrete surface to give smooth finishing
( ordinary Portland cement)
( composition)
Opc is manufactured by mixing limestone chalk with shale /clay to form clinker which is then finely crushed to form grey colour cement
( SIUTATUIONS)
Commonly used for all type of construction works
( purpose)
Widely used in residential construction where is special type of cement properties is not required
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