There are two main types of cement: ordinary portland cement and non-portland cement. Ordinary portland cement can be further broken down into rapid hardening cement, low heat portland cement, sulphate resisting cement, masonry cement, waterproof portland cement, white portland cement, and colored portland cement. Non-portland cement includes high alumina cement and super sulphate cement. Each type of cement has different properties making it suitable for different uses depending on setting time, strength development, chemical resistance, and heat generation.

1. Types of cement:
1. Ordinary portland
based cement
2. non opc cement

2. Ordinaray portland cement
• Rapid hardening
cement
• Low heat portland
cement
• Sulphate resisting
cement
• Masonary cement
• Water proof portland
cement
• White portland cement
• Coloured portland
cement

3. Rapid hardening cement
• Finer than opc provide
greater surface area for action
with water
• Gain strength early
• 1 day strength of this cement
is equal to 3 day srength of 43
grade cement
• Used where a rapid strength
devlopment is required
• Rapid strength gain is
accomplained by higher rate
of heat devlopment useful in
cold enviourment concereting
• Not suitable for hot
concereting
• Prefebricated structure

4. Low heat portland
• Less recative than
opc
• Initial setting time is
greater than opc
• Slow devlopment
• Used in mass
concereting:dam
• Slow devlopment of
strength less heat

5. Sulphate resisting cement
• Contain silicate
content is called
sulphate resisting
cement
• Expansion within
hardned structure of
cement paste result in
crack is called sulphate
attack
• Used marine
enviourment

6. Masonary cement
• Finely gridned
• Produce smooth
,plastic surface

7. Water proof cement
• Water proof
substance is added in
opc
• Calcium
sterate,aluminium
sterate,gypsum with
tannic acid

8. White portland cement
• Amount of iron oxide
governing greyiesh
colour is reduced
• Chalk,highly purified
lime stone as raw
material
• Finer than gray
cement
• Used to minimise
temperature effect

9. Coloured portland cement
• Pigment is added for
achiving different
colours
• 10% pigment is
added
• Permanent pigment
should be used so
that colour remains
for a long time
• For decoration
purpose

10. Non portland based cement
• High alumina cement
• Super sulphate
cement

11. High alumina cement
• Very rective
• Very high early
strength
• 80% at 24 hours
• Resestive to chemical
attack
• Rise of temperature

12. Super phasphate cement
• Made by mixing 80-85%
well granulated slag with
20% sulphate
• Initial setting time 2.5-4
hours,final setting
time4.5 to 7 hours
• Heat of hydration is very
low
• Used in foundation
which is used in
aggressive condition
• Requires great care
when used in cold
weather