000			01897nam a22001817a 4500
003			OSt
005			20240910105604.0
008			240910b |||||||| |||| 00| 0 eng d
040			_aMMSU _cULS
100			_aArellano, Aaron A.
245			_aComparative study on the compressive strength of concretes with eggshells and seashells powder as partial replacement to cement / _cAaron A. Arellano
260			_aCity of Batac : _bMMSU, _c2024.
300			_axiii, 52 leaves : _c29 cm.
500			_aUTHESIS (Bachelor of Science in Ceramic Engineering)
504			_aBibliography : leaves 34-37
520			_aThis thesis compared the potential of utilizing powdered eggshells (PES) and powdered seashells (PSS) as partial replacement materials for cement to enhance the compressive strength of concrete. The primary focus of this research is evaluating the compressive strength of concrete with 18%, 20%, and 22% of PES and PSS denoted us FE1-3 and FS1-3 respectively, all cured in 7, 14, and 28 days. Notably, the PES formulation attains its highest compressive strength at FE3, reaching 6.8MPa within 14 days, while the PSS achieves 9.7MPa in the FS1, within 28 days. To assess the suitability of these mixtures for practical applications, the study compares the obtained strengths to the standard requirement for concrete design, which is M20 grade (20 MPa). Although FE and FS formulation did not achieve the standard strength of a conventional concrete, the results showed that PSS is a better alternative and recommended for optimization study. In summary, this thesis provided valuable insights into the use of PES and PSS as cement replacements, highlighting their positive impact on concrete compressive strength and their conformity to industry standards. These findings contribute to sustainable and cost-effective construction practices.
942			_2lcc _cTHEDIS
999			_c23514 _d23514