Experimental Study on Fracture Energy of Foam Concrete at Different Notch DepthMohd Naqiuddin Zamri, Norashidah Abd Rahman, Zainorizuan Mohd Jaini, Zulaikha Ahmad and Siti Amirah Azra KhairuddinMATEC Web Conf., 250 (2018) 03006DOI: https://doi.org/10.1051/matecconf/201825003006