000			02710nam a22003137a 4500
003			OSt
005			20250702123853.0
008			250702b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH TH 438 _bA73 2025
100			_aAraza, Ma. Angelica Mae B. _eauthor
245			_aEffects of perlite in the physical and mechanical properties of coco-silica fiber cement board/ _cMa. Angelica Mae B. Araza, Mhari Kristina Bernadette P. Benavides, Patricia Collette T. Factora, Jasmine Rose P. Paloma, and Aien Cole B. Palomo.--
300			_axi, 121pages: _c29cm.
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aBachelor's thesis
502			_aCollege of Industrial Technology.-- _bBachelor of engineering technology major in construction technology: _cTechnological University of the Philippines, _d2025.
504			_aIncludes bibliographic references and index.
520			_aPerlite, a lightweight volcanic rock with excellent thermal insulation, soundproofing, and fire resistance, is a promising additive for improving the strength and flexibility of cement- bonded boards, which are typically heavy and prone to cracking. Researchers developed 12 mix designs with cement-to-raw material ratios of 30:70, 40:60, 50:50, and 60:40. These mixes included varying proportions of perlite, coconut coir fiber, and silica sand (5:9:86, 10:9:81, and 15:9:76) combined with Portland cement and a water-cement ratio of 0.6, targeting a density of 0.8 g/cc. The boards underwent Apparent Density, Modulus of Rupture, and Nail-head pull-through testing based on the Philippine National Standard ISO 8336:2022 for fiber-cement flat sheets. Among 12 mix designs tested, the 50:50 cement-to- raw material ratio with a 10:9:81 blend achieved the best compactness (- 1.29 variation). Mixes M1 (40:60) and M2 (50:50) with a 5:9:86 ratio exceeded MOR standards (4.39 MPa and 4.82 MPa). Mix M4 (30:70, 10:9:81 ratio) performed poorly, with 0.66MPa MOR and low NHPT resistance (290.93N). The 5:9:86 ratio demonstrated superior moisture management and structural integrity. Prototype evaluation scored 4.00 overall, deemed "Very Acceptable" for aesthetics, durability, safety, and marketability. Perlite was strongly supported as a key additive for Coco Coir fiber cement boards.
650			_aAdditive material
650			_aLightweight properties
650			_aCellulose fibers
700			_aBenavides, Mhari Kristina Bernadette P. _eauthor
700			_aFactora, Patricia Collette T. _eauthor
700			_aPaloma, Jasmine Rose P. _eauthor
700			_aPalomo, Aien Cole B. _eauthor
942			_2lcc _cBTH CIT _n0
999			_c30043 _d30043