@article{article1385,
  title = {Using of thermal power plant fly ash to produce semi-lightweight  aggregate and concrete},
  author = {AZEZ ALTAYAWI, O.A. and ÖZ, H.Ã. and MERMERDAÅž, K.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2023},
  volume = {41},
  pages = {42-48},
  doi = {10.14744/sigma.2023.00005}
}