000			02030nam a22002417a 4500
003			FT8712
005			20251001090704.0
008			251001b ||||| |||| 00| 0 eng d
041			_aengtag
050			_aTA2040 D87 2023
082			_a.
100	1		_aDuran,Pauleen R. Intal, Bianca Faye F. Magno, Rendell M. Pateno, Alex Dyne S. Saba, Patricia Mae J.
245			_aEffect of cogon (Imperata cylindrica) ash in chloride penetration depth of modified type IP cement concrete
264		1	_aManila: _bPLM, _c2023
300			_bUndergraduate Thesis: (Bachelor of Science in Civil Engineering) - Pamantasan ng Lungsod ng Maynila, 2023
336			_2text _atext _btext
337			_2unmediated _aunmediated _bunmediated
338			_2volume _avolume _bvolume
505			_aABSTRACT: This study compared the varying percentages of modified Type IP cement concrete with cogon (imperata cylindrica) ash in terms of chloride penetration depth. The cogon ash partial replacement to Type IP cement varied from different percentages, specifically 2%, 4% , and 6%. Concrete specimens underwent 28-day during period and submerged in 3% NaCI solutions for an additional 28 days to simulate seawater conditions. The chloride penetration depths were measured and analyzed using the AgNO3-based colometric test. Using Linear Regression Product-Moment Correlation Coefficient, and One-way analysis of variance (ANOVA), the findings indicated that partially replacing cement with cogon ash in the 28-day cured concrete mixture lowered the chloride penetration depth. Among the partial replacement percentages, the controlled sample has the highest chloride penetration depth while the concrete specimens with 4% cogon ash replacement displayed the lowest chloride penetration depth. The differences among these replacement percentage are statistically significant. Thus, this study recommends the use of cogon ash to improve the chloride penetration resistance of a concrete.
526			_aF
655			_aacademic writing
942			_2lcc _cMS
999			_c36869 _d36869