Experimental Study of Compressive Strength of Lightweight Concrete Using Wood CharcoalDaud Andang Pasalli, Dina Limbong Pamuttu, Rahmat Fajar Septiono, Chitra Utary and Hairulla HairullaE3S Web Conf., 328 (2021) 10006DOI: https://doi.org/10.1051/e3sconf/202132810006