Baginda Polianus Sitorus, H., Tarigan, J. and Nursyamsi, .N. 2022. Strengthening Concrete Beams Using High Strength Concrete In 3 (Three) Days. Jurnal Syntax Admiration. 3, 7 (Jul. 2022), 914-923. DOI:https://doi.org/10.46799/jsa.v3i7.455.