A
Glimpse on Qualities of Blended Cements
“Home is where heart
is”. Our home is a place where we live, share, laugh, cry, celebrate and
experience different phases of our lives. Wherever we go, but coming back home
is gives us a sense of security and satisfaction. We all want to gift our loved
ones a secure place. Life has become a risk now, increasing population and high
risk of earthquakes has made life insecure. Hence, it is essential to choose
the proper material for your house so that your loved ones could live without
strain.
In the market of
materials needed for home making, cement plays an important role. It is the key
material and should be chosen wisely. Technically talking, cement is a binder
which can bind other material together. It is a mixture of limestone and clay.
It is a fine mineral powder manufactured with very precise processes. When
submerged with water, it hardens and binds the material used with it.
Types
of Cement Grades-
With the various uses
of cements, there are a variety of them which can be used. Different types of cements
are-
·
Gray Ordinary Portland Cement- mainly
composed of clinker.
·
White Portland Cement-composed of
limestone and kaolin clay
·
Masonry or Mortar- mainly used for brick
work
·
Oil-Well Cement- applicable for
different depth, chemical aggression or pressure levels.
Specifically here we
discuss about Blended Cements-
Blendedcement is obtained by mixing Portland cement with mineral
admixtures or additives like fly ash, slag or silica fumes. Blended cements
have many advantages on ordinary Portland cement and are now-a-days considered
to be superior. Presently in India about 30% of the total production is blended cement. In UK and USA, the
usage of blended cement is nearly
90% of total production.
Advantages
of Blended Cement-
 | |
| Blended Cements |
·
Blended
cement reduces water demand thereby reducing the
water-cement ratio.
·
Workability is improved.
·
Blended
cements are considered to be finer than OPC (ordinary
Portland cement).
·
Permeability of concrete is less which
improves durability.
Apart from the
technical advantages, blended cement also has environmental advantages.
·
Saves
Energy- blended cements are mineral admixtures with OPC
hence the energy which would have otherwise been utilized for production of
OPC, is saved. The saving is up to 0.8 to 1.2 MWH/ton of cement.
·
Natural
Resources are Conserved- blended cements use admixtures,
which are the waste products of thermal and steel plant. By using these, we are
conserving silica, limestone and cay.
·
Controls
Pollution- It has been estimated that 7% of the total
pollution is only due to cement production. As blended cement reduces the
production of cement up to a level, hence it controls pollution.
Penna Cement-
One
of the most famous and trusted brand of cement is Penna Cement, founded in 1991. Located in Hyderabad, this brand
receives demand of cements from small house owners to real state dealers. They
have grown organically by developing in-house expertise across entire value
chain in the cement industry. At Penna, they believe in building quality
relationships.
So
if you are one of those in line to build up your house, do consider the cements
you use and the brand you choose.
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