PENGARUH PENGGUNAAN BASALT FIBER PADA SIFAT MEKANIS BETON GEOPOLIMER DENGAN KOH SEBAGAI ALKALI AKTIVATOR

ayub Konstatinus Moambura; wandi Rusfiandi; nernawani nernawani

ayub Konstatinus Moambura Politeknik Negeri Pontianak
wandi Rusfiandi
nernawani nernawani Politeknik Negeri Pontianak

Keywords: beton geopolymer, serat basalt, kekuatan tekan, KOH, alkali activator

Abstract

Concrete is the most important material in building construction, including bridges, piers and buildings.
Concrete is the main raw material in construction nowadays, where wooden construction is starting to be
abandoned
This research aims to evaluate the effect of using basalt fiber on the mechanical properties of geopolymer
concrete using KOH as an alkali activator. Geopolymer concrete is an environmentally friendly alternative
construction material, which replaces the use of portland cement with a geopolymeric binder. The addition of
basalt fiber is expected to improve the mechanical properties of geopolymer concrete, namely its compressive
strength.
Stages of this research method involve making geopolymer concrete samples with varying compositions,
including varying the concentration of KOH as the alkali activator and the percentage of basalt fiber added.
These samples will be tested to evaluate their mechanical properties, namely compressive strength, and other
physical properties. It is hoped that this research will result in a better understanding of the influence of the
use of basalt fiber on the mechanical properties of geopolymer concrete. It is hoped that the results of this
research can become a basis for the construction industry to improve the performance of geopolymer concrete
by using basalt fiber as reinforcement. Apart from that, this research will also provide new insights into the use
of KOH as an alkali activator in geopolymer concrete. Currently, TKT in research has a value of 1, namely
formulating a geopolymer concrete mix design concept and the final target of the results of this research is to
demonstrate scientific feasibility through analytical and laboratory studies, proof of concept and geopolymer
concrete products that meet construction material standards.
Keywords: geopolymer concrete, basalt fiber, compressive strength, KOH, alkali activator.

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