Abstract The treatment of tannery wastewaters is a complex task due to the complexity waste: mixture several pollutants, both anionic and cationic as well organic macromolecules which are very hard treat for disposal all together. Geopolymers class inorganic binders obtained by alkali activation aluminosilicate powders at room temperature. Such process leads cement like matrix that drastically ...

Abstract Geopolymer (GP) composites show great potential as a replacement for ordinary Portland cement (OPC) in construction material, extrusion‐based, and additive manufacturing. The rheological properties of highly viscous reinforced systems have not yet been well studied, due to limitations the current state art rheometers viscometers, such size torque limits. In this study, basic reinforced...

Nowadays, energy saving, and green sustainability are influencing the development of all industries, including construction industry. In recent years, geopolymeric cement concrete have become hot topic materials as a replacement for traditional OPC; this work carried out orthogonal experiments to identify four potential factors affecting basic properties metakaolin-geopolymeric specimens. The r...

Geopolymer mortars made from various waste products can appreciably reduce carbon dioxide emissions and landfill-related issues, making them viable substitutes for ordinary Portland cement, a workhorse in the concrete industry. Thus, series of ternary geopolymer were characterized to determine effects exposure elevated temperatures (from room temperature up 900 °C) on their engineered (residual...

This study followed the first 20 h of flyash geopolymerization at 70 °C using time resolved Wide Angle X-ray Scattering (WAXS). The extent of dissolution of the amorphous phase of the flyash was determined to range from 29% to 54% for the different formulations trialed. The dissolution rate of the flyash significantly reduced after the first 5 h for all samples. During the formation stage of th...

The associated effect of sodium chloride and dihydrate gypsum on the mechanical performance a slag-based geopolymer activated by quicklime was investigated compressive strength, shrinkage, square circle anti-cracking tests mortar with 0.5 water–binder ratio 1:3 binder–sand ratio, as well paste soundness, powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microsc...

Zeolite-geopolymer hybrid materials have been formed when kaolin was used as a starting material. Their characteristics are of interest because they can have a wide pore size distribution with micro- and meso-pores due to the zeolite and geopolymer, respectively. In this study, Zeolite-geopolymer hybrid bulk materials were fabricated using four kinds of kaolinitic clays (a halloysite and three ...