000			02658nam a22002537a 4500
003			OSt
005			20261104140233.0
008			261104s2026 |||||||| |||| 00| 0 eng d
050			_aT ENG _bA73 2026
100	1		_aArcayos, Allysa L.
245	1	0	_aUtilization of pulverized eggshell and carboard waste fibers in the production of eco-friendly fiber-reinforces cement board / _cAllysa L. Arcayos, Kate Lea Marie P. Deguinon, Miain R. Nunez, and Joven M. Tanamor.
264			_aEAC Cavite : _bSchool of Engineering, _c2026.
300			_aviii, 111 pages ; _c28 cm.
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
500			_aExperimental research
504			_aIncludes bibliographical references
520			_aThis work investigated the possibility of employing the materials eggshell powder (ESP) and cardboard waste fibers (CBW) as the raw material in sustainable production of fiber-reinforced cement board. The study investigated the influences of ESP as a partial replacement for Ordinary Portland Cement (OPC) and CBW partial replacement for commercial cellulose fibers on flexural strength, water absorption and thermal resistivity of cement board. A laboratory investigation was conducted employing four mix proportions for replacement levels: 0% (control), 5% (Mix A), 10% (Mix B), and 15% (Mix C). The samples were prepared, cast, cured for 28 days and tested for flexural strength, water absorption and thermal resistivity in accordance with ASTM standards. The data were subjected to One-Way Analysis of Variance (ANOVA) and evaluated at 95% confidence interval (a 0.05). The results indicated that the flexural strength was decreased with the increasing replacement level, but all modified mixtures satisfied the ASTM requirements for fiber cement board. The modified mixes had lower water absorption than the control, with the lowest value of Mix B (10% ESP and 10% CBW). As for thermal properties, Mix B had the highest thermal resistivity, suggesting better insulation. Statistical analysis revealed no significant differences among the different mix proportions in all tested properties. Overall, Mix B was identified as the optimum mixture due to its balanced flexural performance, moisture resistance, and thermal insulation. The research proved that eggshell powder and cardboard waste fibers can be used as sustainable construction materials, promoting waste reduction and environmental sustainability.
700	1		_4author _aDeguinon, Kate Lea Marie P.
700	1		_4author _aNunez, Miain R.
700	1		_4author _aTanamor, Joven M.
942			_2lcc _cTH _kEAC Cavite-Thesis _n0
999			_c100669 _d100669