As society moves towards decarbonisation, it is important to assess the hydromechanical behaviour of binders that could offer a low-carbon alternative Portland cement in ground improvement technologies. This work considers two such alternatives: one still largely unexplored (metakaolin-based geopolymers) and better known (colloidal silica). Results from unconfined compressive strength, permeabi...

Concrete’s binder can be substituted with rice husk ash, metakaolin, kaolin clay, GGBS, and other agricultural industrial byproducts waste materials, which lowers greenhouse gas emissions, namely carbon dioxide (CO2). When employed in the manufacturing of concrete, aforementioned items reduce amount water required have no discernible impact on material’s long-term performance. Combination metak...

This research aims to investigate the mechanical performance of compressed earth blocks (CEBs) stabilized by a combination metakaolin-based geopolymer (MKG) and sugarcane molasses (SM), remedy limitations present in CEBs with MKG alone. Two schemes stabilization were used. In first, optimum content for stabilizing CEB was partially substituted various percentages SM (10% + 0% SM, 8% 2% 6% 4% SM...

In this study, the workability and reaction mechanism of metakaolin (MK) based geopolymer blended with rice husk ash (RHA) silica fume (SF) was investigated. The prepared samples were subjected to tests including compressive strength fluidity tests. X-ray diffraction (XRD) Scanning electron microscope (SEM) employed explore phase composition microstructure geopolymers. molecular bonding informa...

In this work, the effects of slag addition on geopolymerization process and sulfate resistance alkali-activated cement were studied. The substitution metakaolin by increased reactivity precursors, contributing to a higher reaction rate accelerating process. mechanical properties significantly improved with incorporation slag. results show that transformation gel phases development pore structur...

There are more than half million tons of serpentine waste produced per year during mining operation in Taiwan. This study is to develop a process to manufacture fire-resistant geopolymer based on serpentine waste. The experiment results show that the waste serpentine-based geopolymer have very good physical/mechanical characteristics. For fire resistance tests, a 10 mm thick geopolymer panel wa...

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...