Abstract:
In general, eggshells are a very large amount of organic waste removed from time to
time. Therefore we innovated our fyp project using eggshell as an additive in the
manufacture of brick mortar. Among the objectives of using eggshells in our project is
to produce mortar with eggshell then compare it with regular mortar with conduct tests
on both mortars. The result of the research scope for this project is by mixing eggshells
that have been crushed into dust first as an additive in the manufacture of mortar. This
project uses the ratio of 1:3 where ratio 1 is cement while ratio 3 is sand. Then the
eggshell is added according to the percentage of 5% and 10% of amount of both sand
and cement. The water used is less than 25% of the total mix of the mortar. To make a
compressive strength test, the mortar will be placed in a 50cmx50cmx50cm mold
container first and this project provides 21 cubes containing 0, 5, 10% mixed eggshells
in a mortar mixture and then soaked for 7, 14, 28 days. For the eighth test water and
mortar will be weighed first as soon as the mold is opened and cut according to 7, 8, 28
days for the purpose of evaluating the absorption of water per cube the said. The
conclusion is that this project can help reduce disposal costs for waste caused by
eggshells. The hypothesis for this project isreach the standard of 7.5 𝑁/𝑚𝑚2 on
the 14th and 28th day.
