Mary Jean P. Cuenca, Aces H. Encajonado, Fay Irene L. Gurrea (February 2004)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
This Static Group Comparison Study in a Completely Randomized Design determined the compression strength of concrete products made from talaba shell grits in different binder component ratios, i.e., ratio 1 (50% lime, 50% cement), ratio 2 (50% shells, 50% cement), ratio 3 (33% lime, 33% cement, 33% shells), and ratio 4 (25% lime, 25% cement, 50% shells). The process involved preparation, calcination, pulverization of talaba shells, treatment grouping, mixing of the concrete aggregates, and curing. The concrete products were then subjected to compressive strength test. In analyzing the data that were gathered from the study, the mean and standard deviation, as well as the One-way Analysis of Variance, and the Scheffe test were employed as statistical tools.
Ratio 2 (1:2:4 50% cement 50% shells-lime-sand-gravel mixture) of the concrete made by the researchers was successful when compared to the standard concrete in Ratio 1 that showed improvement in terms of compressive strength.