Chemically Bonded Phosphate Ceramics and Their Composites

This research explores the chemically bonded ceramics and composites, their main advantages, limitations, applications, and structure-material property relations. Particularly, several case studies using calcium silicate and phosphoric acid are presented, mainly applied as a construction or building material, fire protection solution, radiation shielding, hazardous waste stabilization, and even electronics. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) results are also shown to understand the microstructure of the cement. Results show an increasing trend to use these materials particularly for green construction of small houses, a wave that is expanding in many countries for clients interested in mitigating the pollution and decreasing their carbon footprint. Still, there are limitations in the materials developed, mainly in the durability and stability of the compositions under environmental conditions.