Comparative Study Of Cements Essay
Title: A Comparative Study between Crab Shells and Eggshells as Source of Calcium Oxide as an Additive in Cement
Background of the Study Cements are used in molding or holding the other materials together. Over decades cements are already used in creating infrastructures. Some houses are made up of cements. Most cements are made up of limestone. One major component of cements is Calcium Oxide, it is responsible for improving the durability or textile strength of the material. Sulfate attack is the main problem in the durability of cements since marine environment contains sulfate that may cause loss of its durability. Over the past decades, the durability of cements that are use in our infrastructures were still being tested. The durability
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Powderized Crab shells will be mixed to a regular cement for the first experimental group. Powderized Egg shells will be mixed to a regular cement for the second experimental group.
Construction or creating the experimental group.
Two set-ups will be prepared. For the first set-up, powderized crab shells will be mixed into the cements with enough water. For the second set-up, powderized egg shells will be mixed into the cements with enough water. Each set-up will have 5 identical trials. Let them cool.
Preparation of the the treatment A solution of sodium and magnesium sulfate will be prepared. This will indicate if such expansion is attributed to reactions of sulfate ions with some hydration products in cement structure.
The effect of sulfate attack is usually assessed through indicators, such as loss or increase of its
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