Microstructure and Tensile Strength of Foamed Concrete with Added Polypropylene FibersA. R. Hazlin, Afif Iman, N. Mohamad, W. I. Goh, L. M. Sia, A. A. A. Samad and Noorwirdawati AliMATEC Web Conf., 103 (2017) 01013DOI: https://doi.org/10.1051/matecconf/201710301013