Optimization of matrix compositions of Al2O3, SiO2, Caolin, and CaO on the mechanical properties of a geopolymer composite with short carbon fiber

Conference on Innovation in Technology and Engineering Science

工业技术（总论）

Akmal, J.^1 ; Badaruddin, M.^1 ; Ismoyo, M.K.^1 ; Yuwono, S.D.^2

Department of Mechanical Engineering, University of Lampung, Indonesia^1

Department of Chemical Science, University of Lampung, Jalan Prof. Soemantri Brodjonegoro No.1, Bandar Lampung

35145, Indonesia^2

关键词: Base material;    Flexural modulus;    Geopolymer composites;    Industrial area;    Large amounts;    Matrix composition;    Short carbon fibers;    Silica powder;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/602/1/012079/pdf
DOI  :  10.1088/1757-899X/602/1/012079

学科分类：工业工程学

来源: IOP

【 摘 要 】

Geopolymer is a material synthesized from a base material with a large amount of silica and alumina. Geopolymer can be used as an affordable alternative as a substitute for Portland cement, reducing pollution, and resistant to fire under certain conditions. But pure geopolymer has not been widely used in industrial areas because overall it has low toughness and mechanical properties when compared to metals or ceramics. This research was conducted to produce geopolymer composite material with good mechanical properties and can be applied as a material in making environmentally friendly pipes, by identifying the influence of the composition of the geopolymer base material using the Taguchi method. Generate Geopolymer composites with the addition of Silica Powder and random short carbon fiber have good mechanical properties, from the results of the experiment produced the best flexural strength in T9 specimens with details of the composition of Silica Powder (27 g), Kaolin (55 g), CaO (6 g), and Carbon Fiber (13 gr) with a flexural strength of 41.46924655 MPa and flexural modulus 6 GPa.