This is also true for proximate analysis, which assesses coal and coke based on moisture, ash, and volatile matter content. Standards like ASTM D3172 and ISO 3172 provide the general framework for ...

Ash from a volcanic eruption in the South Pacific nation presents risks to drinking water and air quality, experts say. Quantifying them in real time is a challenge.

RMIT researchers have developed a new type of "green concrete" that incorporates twice as much recycled coal ash as existing low-carbon concretes, halves the amount of cement required, and lasts ...