Mpa Concrete Essay
Concrete - a composite material consisting of a proportionate mix of water, cement, sand and stone (aggregate) is the most widely used building material in the construction industry globally. It is the inherent mechanical properties of concrete which makes it such favourable building material. When concrete is freshly made, it can be placed, compacted and finished with relative ease without the segregation of the individual materials. When concrete sets and hardens, it becomes a durable stone-like material which increases in strength over time. In addition to its inherent mechanical properties, concrete is also cost effective in relation to its strength compared to other construction materials. Furthermore, due to the alkaline nature of concrete, …show more content…
This would enable the satisfactory use of sea water in the production of concrete. Research indicates that the use of sodium ferrocyanide can inhibit the growth of salt crystals found in sea water. This study focuses on the effect of sodium ferrocyanide in concrete with sea water as mixing water.The research problem
Does the use of the salt crystallisation inhibitor, sodium ferrocyanide, affect the compressive strength of a 20 Mpa concrete mix with sea water as mixing water?
The aim of this work is to determine the effect of sodium ferrocyanide in concrete with sea water as mixing water. In order to achieve this, the following objectives will be met
To determine the chemical composition of one litre of sea
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When mixed with water of suitable quality, concrete will gain strength over time which will be in excess of the specified twenty eight day strength. Therefore any addition or admixture to concrete should aim to achieve or improve the strength of the concrete. Any addition or admixture to concrete that causes the concrete not to attain its twenty eight day specified strength or cause a reduction in concrete strength over time should be deemed unacceptable. The loss of strength over time could be devastating as it could lead to structural failure and should at all-time be
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