Properties of Concrete Mixes with Carwash Wastewater Shahiron Shahidan, Mohamad Syamir Senin, Aeslina Binti Abdul Kadir, Lau Hai Yee and Noorwirdawati Ali MATEC Web Conf., 87 (2017) 01018 Published online: 12 December 2016 DOI: 10.1051/matecconf/20178701018