Analysis on the effect of coarse aggregate maximum size and polypropylene fiber on concrete slabs exposed at low temperature / Jobei Rose C. Agresor, Shaira Geil C. Badua, Jonathan P. Balicao, Hanie May A. Celedonio, Joash Normie A. Duldulao, Matt Cleo N. Gabriel, Jhazmine Crystal F. Magbual, Dona A. Valentin
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TextPublication details: City of Batac : MMSU, 2024Description: xxvii, 91 leaves : 28 cmSummary: The appearance of cracks on concrete slab is accompanied by reduction in the
stiffness and durability of the concrete floor especially when they are exposed to low
temperatures. The study conducted an experimental analysis on the effect of different
sizes of coarse aggregate and polypropylene fibers to the formation of cracking patterns
on concrete slabs primarily exposed at -25°C. Besides, the study performed nonlinear
finite element analysis using ABAQUS software to model and investigate the influence
of temperature to the mechanical properties and behavior of concrete slab.
Experimental research design with qualitative approach and a numerical analysis using
nonlinear finite element method was employed to analyze and interpret the data
collected from the conducted procedure for data gathering. One-Way Analysis of
Variance (ANOVA) was used for the statistical treatment.
The selection of concrete slab mixture was based from the performance of
concrete cylinders with varying aggregate sizes (13mm, 19mm, 25mm) of different
fiber content ranging from 0% (control group), 0.35%, 0.65%, and 1.0% by concrete’s
volume. Material for concrete was Type I Portland Cement conforming to ASTM C150
and followed a standard ratio of mixing Class 25 (M25) with 1:1:2 (cement, sand, and
aggregate) proportioning and 0.45 water-to-cement (w/c) ratio. The results in this study
demonstrate that: (1) the compressive strength of the concrete was affected by the
presence of fiber and size of coarse aggregate incorporated into the mixture. (2)
increasing fiber content from 0.35% to 0.65% with 19mm aggregate reduces the area
of cracking which could significantly improve crack resistance of fiber reinforced
concrete slabs. (3) data simulated by ABAQUS software reveal that, the stress
distribution analysis on concrete slabs with varying compressive strengths have
consistent finding of minimal stress levels such that, higher compressive strength of
concrete correlates with lower developed stress, thereby enhancing its durability and
performance.
| Item type | Home library | Shelving location | Call number | Status | Notes | Date due | Barcode |
|---|---|---|---|---|---|---|---|
| Thesis/Dissertation | MMSU Main Library | Theses and Dissertation Section | Available | Room Use Only | UTHESIS-6873 |
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UTHESIS (Bachelor of Science in Civil Engineering)
Bibliography: leaves 70-73
The appearance of cracks on concrete slab is accompanied by reduction in the
stiffness and durability of the concrete floor especially when they are exposed to low
temperatures. The study conducted an experimental analysis on the effect of different
sizes of coarse aggregate and polypropylene fibers to the formation of cracking patterns
on concrete slabs primarily exposed at -25°C. Besides, the study performed nonlinear
finite element analysis using ABAQUS software to model and investigate the influence
of temperature to the mechanical properties and behavior of concrete slab.
Experimental research design with qualitative approach and a numerical analysis using
nonlinear finite element method was employed to analyze and interpret the data
collected from the conducted procedure for data gathering. One-Way Analysis of
Variance (ANOVA) was used for the statistical treatment.
The selection of concrete slab mixture was based from the performance of
concrete cylinders with varying aggregate sizes (13mm, 19mm, 25mm) of different
fiber content ranging from 0% (control group), 0.35%, 0.65%, and 1.0% by concrete’s
volume. Material for concrete was Type I Portland Cement conforming to ASTM C150
and followed a standard ratio of mixing Class 25 (M25) with 1:1:2 (cement, sand, and
aggregate) proportioning and 0.45 water-to-cement (w/c) ratio. The results in this study
demonstrate that: (1) the compressive strength of the concrete was affected by the
presence of fiber and size of coarse aggregate incorporated into the mixture. (2)
increasing fiber content from 0.35% to 0.65% with 19mm aggregate reduces the area
of cracking which could significantly improve crack resistance of fiber reinforced
concrete slabs. (3) data simulated by ABAQUS software reveal that, the stress
distribution analysis on concrete slabs with varying compressive strengths have
consistent finding of minimal stress levels such that, higher compressive strength of
concrete correlates with lower developed stress, thereby enhancing its durability and
performance.
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