Inoue, Masumi, Heesup Choi, and Yuhji Sudoh. 2018. “Fresh Properties and Strength Development of Cement Mortar Using Nitrite-Based Accelerator and Chemical Admixtures”. Proceedings of Engineering and Technology Innovation 9 (July):09-16. https://ojs.imeti.org/index.php/PETI/article/view/2941.