CONCRETE OR CEMENT?
What are the differences between Concrete and Cement?
CONCRETE is the most widely used building material on the planet.
It has been used for over 5,000 years - a fact we know because
there are concrete columns built in Ancient Egypt still standing
today!
Combining concrete with STRUCTURAL STEEL creates a virtually
indestructible material that has enabled the construction of
awe-inspiring bridges and Towering skyscrapers all around the
world.
PORTLAND CEMENT is the glue that binds concrete together. It
is a fine POWDER made mostly from limestone, clay and sand -
but it can also contain calcium, silicon, shale, iron ore and
sea shells along with ashes, furnace slag and other byproducts.
PORTLAND CEMENT is a term coined in 1824 by Joseph Aspdin of
England. he developed a mixture that resembled a highly-demanded
building stone from the ISLE of PORTLAND off the English coast.
Today, Portland Cement is a generic term for the type of cement
used in virtually all construction.
CONCRETE'S rate of hardening can be precisely controlled by
the amount of gypsum ground into the Portland Cement when it
is manufactured. other additives to the concrete mix can also
help closely control the setting time, as can Temperature.
EXPOSED AGGREGATE is a popular and attractive method of "finishing"
concrete surfaces. various methods are employed to remove the
outermost concrete before it sets, "exposing" the
stones underneath. Rounded and smallish stones are typically
used for aesthetic purposes.
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