Sound insulation properties of materials and methods used in civil engineering Merey Yerzatova, Temirlan Zhaksybekov, Askhat Rakhimov, Nuraly Akhmetov and Aleksandr Buryanov E3S Web Conf., 533 (2024) 01005 Published online: 07 June 2024 DOI: 10.1051/e3sconf/202453301005