TO STUDY THE EFFECT OF POLYPROPYLENE FIBER, FLY ASH AND RICE HUSK ON CONCRETE PROPERTIES. International Journal of Food and Nutritional Sciences, [S. l.], v. 10, n. 9, p. 556–566, 2021. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/4131. Acesso em: 17 jul. 2026.