STUDY OF THE STRENGTH CHARACTERISTICS OF PROTEIN-BASED LIGHTWEIGHT FOAMED CONCRETE WITH CEMENT PARTIALLY REPLACED WITH RICE HUSK ASH. NIJOTECH [Internet]. 2016 Oct. 1 [cited 2026 Apr. 23];35(4):699-706. Available from: https://www.nijotech.com/index.php/nijotech/article/view/1160