Workability and Compressive Strength for Concrete With Coconut Shell Aggregate Alif Syazani Leman, Shahiron Shahidan, Mohd. Yazid Yusuf, Sharifah Salwa Mohd Zuki and Noor Aina Misnon MATEC Web Conf., 87 (2017) 01017 Published online: 12 December 2016 DOI: 10.1051/matecconf/20178701017