SHILVA NIDDA PRADEA, NIM. 112024163P (2026) PENGARUH PEMANFAATAN SUBSTITUSI LIMBAH TEMPURUNG KELAPA DAN SERAT FIBERGLASS TERHADAP KUAT TEKAN DAN KUAT TARIK BELAH BETON. Skripsi thesis, Universitas Muhammadiyah Palembang.

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Abstract

THE EFFECT OF USING COCONUT SHELL WASTE SUBSTITUTION AND FIBERGLASS FIBER ON CONCRETE COMPRESSIVE STRENGTH AND SPLITTING TENSILE STRENGTH ABSTRACT Shilva Nidda Pradea1, Mira Setiawati2, Marice Agustini3 The rapid growth of construction activities has led to a high consumption of natural coarse aggregates, driving massive natural resource exploitation and potential environmental degradation. As a mitigation effort, the utilization of coconut shell waste as a partial substitution for coarse aggregate serves as an eco-friendly alternative, supplemented by fiberglass. This study aims to analyze the effect and determine the optimum mix percentage of coconut shell waste substitution at variations of 0%, 2.5%, 5%, 7.5%, and 10% by weight of coarse aggregate combined with a constant 0.25% fiberglass fiber addition by weight of cement on the compressive strength and splitting tensile strength of f'c 20 mpa concrete at 28 days. The results indicated that the optimum mixture was achieved at 2.5% coconut shell substitution and 0.25% fiberglass fibers, yielding an average compressive strength of 21.24 MPa a 1.63% increase compared to normal concrete at 20.90 MPa and an average splitting tensile strength of 2.17 MPa a 1.88% increase compared to normal concrete at 2.13 MPa, whereas higher coconut shell substitutions 5%, 7.5%, and 10% progressively reduced both compressive strength and splitting tensile strength. In conclusion, substitution of coconut shells treated with sodium silicate (Na2SiO3) and the addition of fiberglass fibers, where the optimum combination of variations results in an increase in concrete structure that is stronger in resisting pressure and resistant to micro-cracking compared to normal concrete. Utilizing coconut shell waste and fiberglass fibers at the optimal percentage is effective as an eco-friendly concrete additive innovation while satisfying structural strength requirements. Keywords: Concrete, Coconut Shell, Fiberglass Fiber, Compressive Strength, Splitting Tensile Strength.

Item Type:	Thesis (Skripsi)
Additional Information:	Pembimbing : 1. Ir. Mira Setiawati, S.T., M.T. 2. Marice Agustini, S.T., M.T.
Uncontrolled Keywords:	Keywords: Concrete, Coconut Shell, Fiberglass Fiber, Compressive Strength, Splitting Tensile Strength.
Subjects:	Teknik Sipil > Bahan-bahan Bangunan
Divisions:	Fakultas Teknik > Teknik Sipil (S1)
Depositing User:	Mahasiswa Fakultas Teknik
Date Deposited:	22 Aug 2026 01:48
Last Modified:	22 Aug 2026 01:48
URI:	http://repository.um-palembang.ac.id/id/eprint/37027

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