RAO, D. D. K. .; MOHAMMED, S. S. .; SAMSONU, G. A LABORATORY INVESTIGATION ON THE EFFICIENCY OF EXPANSIVE SOIL TREATED WITH PHOSPHOGYPSUM AND CALCIUM CHLORIDE AS SUBGRADE FOR FLEXIBLE PAVEMENTS. International Journal of Technical Innovation in Modern Engineering & Science, [S. l.], v. 5, n. 11, p. 39–51, 2019. Disponível em: https://ijtimes.com/index.php/ijtimes/article/view/40. Acesso em: 5 feb. 2025.