Date of Publication
1-10-2024
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Civil Engineering with Specialization in Structural Engineering
Subject Categories
Civil Engineering | Engineering
College
Gokongwei College of Engineering
Department/Unit
Civil Engineering
Thesis Advisor
Dr. Bernardo A. Lejano
Engr. Kenneth Jae T. Elevado
Defense Panel Chair
Dr. Lessandro Estelito O. Garciano
Defense Panel Member
Engr. Richard M. De Jesus
Engr. Marion Ryan A. Vicencio
Abstract/Summary
There is a growing interest in exploring the viability of wastes from the agriculture industry as a potential substitute for concrete parts. The study explores these wastes as potential replacement for concrete by using coconut shell ash (CSA) and coconut shell granules (CSG) as partial replacement for cement and fine concrete aggregates, respectively. Coconut coir (CC) is used as fiber reinforcements to utilize more coconut waste. The experiment involved 15 mix designs with changing percentages of CSA and CSG (0% to 20%) and CC (0% to 2% by cement weight). Tests for fresh concrete included slump and unit weight, while 28-day cured samples were tested for tensile and compressive strength. Response Surface Methodology (RSM) was used to model the relationship between factors and responses and find the best mix design. The modified concrete showed a decrease in slump for fresh concrete. The recommended combination for optimal strength was 2% CC content, achieving a compressive strength of 23.046 MPa and tensile strength of 3.315 MPa. This suggests that CSGCSA coconut coir reinforced concrete is suitable for structures not requiring compressive strength above 28 MPa. The microscopic bonding of aggregates was assessed using Scanning Electron Microscope (SEM), revealing that including CC prevented the continuation of the interfacial transition zone.
Abstract Format
html
Language
English
Format
Electronic
Keywords
Sustainable construction—Philippines; Waste products as building materials—Philippines
Recommended Citation
Oliveros, S. G., Fandiño, M. J., Ng, E. N., & Datinguinoo, Z. K. (2024). Utilization of coconut shell ash and coconut shell granules as partial replacement to cement and fine aggregates of coconut coir reinforced concrete. Retrieved from https://animorepository.dlsu.edu.ph/etdb_civ/12
Upload Full Text
wf_yes
Embargo Period
8-2025
