M. ANDRIKO SAPUTRA, NIM. 112022024 (2026) ANALISIS MIKROSTRUKTUR MORTAR DENGAN SUBSTITUSI FLY ASH DAN PENAMBAHAN SERAT POLYPROPYLENE PADA KONDISI SIKLIK AIR RAWA MENGGUNAKAN SCANNING ELECTRON MICROSCOPE (SEM). Skripsi thesis, Universitas Muhammadiyah Palembang.

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Abstract

Microstructural Analysis of Fly Ash-Substituted Mortar with Polypropylene Fiber under Cyclic Swamp Water Conditions Using Scanning Electron Microscopy (SEM) M Andriko Saputra1, Revisdah2, Verinazul Septriansyah3 ABSRACT M Andriko Saputra/112022024/ Microstructural Analysis of Fly Ash- Substituted Mortar with Polypropylene Fiber under Cyclic Swamp Water Conditions Using Scanning Electron Microscopy (SEM) /Civil Engineering. Mortar exposed to cyclic swamp water conditions is susceptible to microstructural changes that may affect its mechanical properties. This study aimed to analyze the microstructural characteristics of fly ash–polypropylene fiber mortar under cyclic swamp water conditions, including pore distribution, voids, microcracks, and particle distribution. This study is a continuation of previous research using mortar specimens with variations of normal mortar and mortar containing 1%, 2%, 3%, 4%, and 5% fly ash with the addition of 1% polypropylene fiber. Microstructural observations were conducted using the Scanning Electron Microscope (SEM), while compressive strength, density, and X-Ray Fluorescence (XRF) data were used as supporting data. The results showed that the mixture containing 2% fly ash and 1% polypropylene fiber exhibited the densest and most homogeneous microstructure, characterized by fewer pores, voids, and microcracks, and supported by the highest compressive strength of 24.64 MPa. In contrast, increasing the fly ash content to 3%, 4%, and 5% increased porosity and microcracks, reduced matrix density, and consequently decreased the compressive strength of the mortar. Based on the results, it can be concluded that the mixture containing 2% fly ash and 1% polypropylene fiber is the optimum composition because it produced the best microstructural characteristics under cyclic swamp water conditions. Keywords: Mortar, Fly Ash, SEM, Polypropylene Fiber, Cyclic Swamp Water.

Item Type:	Thesis (Skripsi)
Additional Information:	1. Ir. Revisdah, M.T. 2. Dr. Verinazul Septriansyah, S.T., M.T.
Uncontrolled Keywords:	Mortar, Fly Ash, SEM, Polypropylene Fiber, Cyclic Swamp Water.
Subjects:	Teknik Sipil > Bahan-bahan Bangunan
Divisions:	Fakultas Teknik > Teknik Sipil (S1)
Depositing User:	Mahasiswa Fakultas Teknik
Date Deposited:	20 Aug 2026 03:56
Last Modified:	20 Aug 2026 03:56
URI:	http://repository.um-palembang.ac.id/id/eprint/37013

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