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Effects Of Salt Water On Concrete
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1.4 SCOPE AND LIMITATION OF STUDY
A
popular yard-stick to the suitability of water for mixing concrete is
that, if water is fit for drinking, it is fit for making concrete. This
does not appear to be a true statement for all conditions. Some water
containing imparities may be suitable for other purpose, but not for the
mixture of concrete.
Some specification requires that if the water
is not obtained from source that has proven satisfactory, the strength
of concrete or mortar made with questionable water should be compared
with similar concrete or mortar made with pure water. Sea water has a
salinity of about 3.5percent, in that, about 78% is sodium chloride and
15% is chloride and sulphate of magnesium. It is reported that the use
of sea water for mixing concrete does not appreciably reduce the
strength of concrete although it may lead to corrosion of reinforcement
in certain cases.
The purpose of the experiment is to prove the doubt of people whether or not if salt water has an effect on concrete.
1.5 DEFINITION OF TERMS
ï¶
ACCELERATION:- There are substances that speeds up rate of a reaction,
for photography, an accelerator speeds the action of a developer. For
structural engineering, an accelerator speeds the setting of concrete.
In the manufacture of plastics, an accelerator is used to speed up the
curing of epoxy and other resion-type plastics.
ï¶ GRAVEL:- Gravel,
loose material consisting of rock or mineral fragments. Gravel fragments
are larger than sand particles and smaller than boulders specifically,
gravel particles are larger than 2mm (0.08m) in diameter and smaller
than 256mm (10m) in diameter. Gravel is a constituents of concrete,
which is used in construction.
Gravel is produced by the weathering
and erosion of rocks, strong river currents or glaciers often transport
gravel greats distances before it is disposited. Rock fragments in
gravel that has been transported by water are worm and rounded, while
theso carried by ice usually have sharp angular edges. The rock
fragments in gravel transported by rivers also vary in sizeless than
those transported by glaciers. Gravels are also found on beaches where
there is strong wave actives are very round and smooth.
ï¶ SAND:- Sand
loose incoherent mass of mineral materials in a finely gramilar
condition, usually consisting of quartz (silica) with a small proportion
of mica, feldspar, magnetite, and other resistant minerals. It is the
product of the chemical and mechanical disintegration of rocks under the
influence of weathering and abrasion. When freshly formed, the
particles are usually angular and sharply pointed, becoming smaller and
more rounded by attrition by the wind or by water.
CHAPTER ONE -- [Total Page(s) 4]
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ABSRACT - [ Total Page(s): 1 ]This project is carried out to know the effects of salt water on concrete. Salt water has salinity of about 3.5%. in that, about 78% is sodium chloride and 15% is chloride and sulphate of magnesium. The result gotten from the experiment being carried out shows different result from the mix design, casting, curing and crushing of different dates of each cubes. The compressive strength of each cube was also determined e.g. for the compressive strength of mix design 1.2.2:4 for both salt water and ... Continue reading---
