The Mechanical Properties and Microstructure Characters of Hybrid Composite Geopolymers-Pineapple Fiber Leaves (PFL)

1st Annual Applied Science and Engineering Conference

工业技术;自然科学

Amalia, N.^1 ; Hidayatullah, S.^1 ; Nurfadilla^1 ; Subaer^1

Laboratorium Fisika Material, Jurusan Fisika, Universitas Negeri Makassar, Indonesia, Jl. Daeng Tata Raya, Makassar, Indonesia^1

关键词: Chemical constituents;    Class C fly ashes;    Compressive and flexural strengths;    Geopolymer matrix;    Hybrid composites;    Maximum temperature;    Microstructure characterization;    Properties and microstructures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/180/1/012012/pdf
DOI  :  10.1088/1757-899X/180/1/012012

来源: IOP

【 摘 要 】

The objective of this research is to study the influence of organic fibers on the mechanical properties and microstructure characters of hybrid composite geopolymers-pineapple fibers (PFL). Geopolymers were synthesized by using alkali activated of class C-fly ash added manually with short pineapple fiber leaves (PFL) and then cured at 60°C for 1 hour. The resulting composites were stored in open air for 28 days prior to mechanical and microstructure characterizations. The samples were subjected to compressive and flexural strength measurements, heat resistance as well as acid attack (1M H2SO4solution). The microstructure of the composites were examined by using Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS). The measurement showed that the addition of pineapple fibers was able to improve the compressive and flexural strength of geopolymers. The resulting hybrid composites were able to resist fire to a maximum temperature of 1500°C. SEM examination showed the presence of good bond between geopolymer matrix and pineapple fibers. It was also found that there were no chemical constituents of geopolymers leached out during acid liquid treatment. It is concluded that hybrid composite geopolymers-pineapple fibers are potential composites for wide range applications.