Cement is a binder, a substance that sets and hardens and can bind other materials together. Cements used in construction can be characterised as being either hydraulic or non-hydraulic

1. CEMENT
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2. What Is Cement?
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Types of Cement
Tests on cement
Composition of Cement
Summary
CONTENTS
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3. WHAT IS CEMENT?
Cement is a binder, a substance that sets and hardens and can bind other
materials together. Cements used in construction can be characterised as
being either hydraulic or non-hydraulic
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4. TYPES OF CEMENT
OPC
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Ordinary Portland cement
PPC
Pozzolanic Portland cement
There are many other Types
available
in the market depends upon the
Construction
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5. This type of cement use in construction when
there is no exposure to sulphates in the soil or
ground water.
Initial & Final Strength arrived as per the log
Fineness -not less than 2250 cm2/gram
OPC
Ordinary Portland cement
PPC
Pozzolanic Portland cement
As per Indian standard, the proportions of
Pozzolana may be 10 to 25 % by weight.
e.2. Burnt clay, shale, Fly ash.
This Cement has higher resistance to
chemical agencies and to sea water because
of absence of lime.
It evolves less heat and initial strength is less
but final strength is 28 days onward equal to
ordinary Portland cement.
It possesses less resistance to the erosion
and weathering action.
It imparts higher degree of water tightness
and it is cheap.
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6. The various constituents combine in burning and
form cement clinker. The compounds formed in the
burning process have the properties of setting and
hardening in the presence of water. They are known
as Bogue compounds after the name of Bogue who
identified them. These compounds are as follows:
Alite (Tricalcium silicate or C3S), Belite (Dicalcium
silicate or C2S), Celite (Tricalciumalluminate or C3A)
and Felite ( Tetracalciumalumino ferrite or C4AF).
Cement is primarily composed of calcium, silicon,
aluminum, iron, and other minor elements. The
most common type of cement is Portland cement,
which is produced by heating a mixture of
limestone, clay, and other materials to high
temperatures in a kiln, resulting in a clinker.
COMPOSITION OF
CEMENT CLINKER
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7. VARIOUS TESTS ON
CEMENT
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Field tests
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Physical properties
Color
Presence of lumps
Strength
Lab Tests
Fineness
Compressive strength
Consistency
Setting time
Soundness
Tensile strength
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8. ENVIRONMENTAL IMPACT
The production of cement can be energy-intensive and result in significant
carbon dioxide (CO2) emissions, making it a concern in terms of
environmental sustainability. Efforts are underway to develop more
environmentally friendly cement alternatives, such as low-carbon and
carbon-neutral cements.
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9. SUMMARY
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cement is a fundamental building material used in the construction
industry for its binding properties, and it is a key ingredient in the
production of concrete, which is essential for various construction projects.
Its widespread use has led to its critical role in modern infrastructure and
development.
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On topic
Cement