Page 150 - Towards A Sustainable Future , Phase 3 2025, E-Book_Neat
P. 150
(i) Emix Cement + Water (Control) (ii) Emix Cement + Ca(OH)2 (Control)
Total weight of 280kg supported 3 cylindrical shaped of Total weight of 480kg supported 3 cylindrical shaped of
cement underneath. Each withstands average load of cement underneath. Each withstands average load of
93kg before they started to break. They are more brittle 160kg. No observation of cracks was found under this
as compared to their counterparts which use CA(OH)2 load.
instead of water.
(iii) 20% Shell Powder + 80% Cement + Ca(OH)2 (Sample)
The positive outcome of the entire project demonstrates that
incorporating additives like calcium hydroxide and shellfish
powder into cement significantly enhances its strength and
durability. Both modified mixtures supported a total weight
of 480 kg, with each cylinder withstanding an average load
of 160 kg without any visible cracks. This indicates that these
additives improve the load-bearing capacity and reduce
brittleness compared to the water-only control. Additionally,
the successful use of shellfish powder highlights the
potential for sustainable and innovative materials to improve
construction quality while potentially repurposing waste
products.
Total weight of 480kg supported 3 cylindrical shaped of
cement underneath. Each withstands average load of
160kg. No observation of cracks was found under this
load.
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