Roldán Latorre, Walter, and Jorge Garcés Arroyo. “Pozzolanic Improvements to Fly Ash When Removing Unburned Carbon”. Revista de la Construcción. Journal of Construction 17, no. 2 (August 31, 2018): 296–303. Accessed November 15, 2024. http://146.155.94.136/index.php/RDLC/article/view/2087.