Inorganic Composite Material Based on Fly Ash, Red Residue from Bauxite Ore for Road Building Projects in Vietnam

Abstract

The paper present solidifying technology based on geopolymer theory of inorganic composite materials from bauxite, red residue from bauxite ore, fly ash and activators for road building projects in Vietnam. This study describes physical properties and chemical compositions of bauxite, red residue, fly ash and the effects of bauxite-red residue-fly ash-activator mixes on the geotechnical properties of inorganic composite materials. Mixture design and testing procedures for inorganic composite materials. New inorganic composite materials have high durability and ability to water resistance. The presentation also show microstructure analysis of inorganic composite materials based on bauxite residue, fly ash and activators by X-ray diffraction, Infrared spectroscopy (IR), transmission electron microscopy (TEM) display high density, and modified microstructure of inorganic composite materials. Construction method of road using inorganic composite materials is also presented.