Effect of particle size of colloidal nano-silica on the properties of the SCM based concreteKakara S.J. Kumar, M.V. Seshagiri Rao, V. Srinivasa Reddy, S. Shrihari and Prashant HugarE3S Web Conf., 391 (2023) 01204DOI: https://doi.org/10.1051/e3sconf/202339101204