A number of root-repair materials have been developed by various manufacturers, including Mineral Trioxide Aggregate (MTA) that has adequate biological and physical properties of a good root repair material [1,2]. MTA has been used for apexification, perforation repair, root resorption, and as a root-end filling material. The main ingredients of MTA are silicate oxide, tricalcium oxide, tricalc...

This study presents a simple and sustainable coating technology for the deposition of photocatalytic coatings based on titanium dioxide geopolymers, which requires no thermal post-treatment. Titania powder P25, potassium silicate calcium aluminate-based hardener were dispersed in water applied to aluminum substrates using paintbrush, roller spray gun. The air-dried 12 h. activities tested via d...

Tricalcium aluminate (C3A) is a major phase of Portland cement clinker and some dental root filling cements. An accurate all-atom force field is introduced to examine structural, surface, and hydration properties as well as organic interfaces to overcome challenges using current laboratory instrumentation. Molecular dynamics simulation demonstrates excellent agreement of computed structural, th...

The Bayer Process (for alumina) as we know it today involves two steps: • The pressure leaching of bauxite with NaOH solution to obtain sodium aluminate solution. • The precipitation of pure aluminum hydroxide from this solution by seeding with fine crystals of Al(OH)3 . The leaching step was invented five years after the precipitation step (Table 1), and the precipitation step was an improveme...

The work reports on an experimental programme, conducted to validate comprehensively our previously proposed coupled chemo-transport model for external sulfate attack concrete. Specifically, the effects of concentration solution and temperature distribution ions in concrete are experimentally investigated used demonstrate accuracy modeling framework. Further, profile aluminate depletion leachin...

A type of zeolite from the analcime family was prepared by using triethanolamine, silica gel and sodium aluminate. The average particle size was around 24 µm. FTIR, XRD and SEM results approved the type of zeolite which was formed