Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) AGGARWAL S. K.,Pozzolanic activity of various siliceous materials,Cement and Concrete Research,,,2006,36,9,1735-1739,https://cir.nii.ac.jp/crid/1570291226248413824,https://doi.org/10.1016/j.cemconres.2004.06.025