Videla, C., and M. López. “Effect of Lightweight Aggregate Intrinsic Strength on Lightweight Concrete Compressive Strength and Modulus of Elasticity”. Materiales de Construcción 52, no. 265 (March 30, 2002): 23–37. Accessed March 28, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/342.