Answer / nagasindhu.k.n

ordinary portland cement is mixture of calcarious and
argilaceous materials.
PPC ios a mixture of pozzalanic materials like fly ash
volcanic ashes, shales, tuffs, etc.,

Answer / amiyaranjan

ppc is low heat generate cement with flyash blinded
aslo economical
opc is early strength cement

Answer / deepthi ramachandran

The Portland Pozzolana Cement is a kind of Blended Cement
which is produced by either intergrinding of OPC clinker
along with gypsum and pozzolanic materials in certain
proportions or grinding the OPC clinker, gypsum and
Pozzolanic materials separately and thoroughly blending
them in certain proportions.
Pozzolana is a natural or artificial material containing
silica in a reactive form. It may be further discussed as
siliceous or siliceous and aluminous material which in
itself possesses little, or no cementitious properties but
will in finely divided form and in the presence of
moisture, chemically react with calcium hydroxide at
ordinary temperature to form compounds possessing
cementitious properties. It is essential that pozzolana be
in a finely divided state as it is only then that silica
can combine with calcium hydroxide (liberated by the
hydrating Portland Cement) in the presence of water to form
stable calcium silicates which have cementitious
properties. The pozzolanic materials commonly used
are:Volcanic ash, Calcined clay, Fly ash,silica fumes

OPC is environment friendly as well as economical

how the take measurement at column and beam junction

1 Answers   DMRC,

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Hi my name is Binyam and I'm a 7th grader at Mayfield Woods Middle school. I decided to research civil engineering as my career and i need to know a few thing about your profession. What is your daily routine? What are some advantages and things you like about your job? What are some disadvantages What is the hardest thing you have done? What education have you gone through to become a civil engineer? How long is your work day? What is your work environment like? What is your salary? What made you want to become an engineer? What tools do you you use? Thank you for answering my questions

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