TY - RPRT TI - Certification of SRM 2493: standard reference mortar for rheological measurements AU - Olivas, Alex AU - Ferraris, Chiara F AU - Martys, Nicos S AU - George, William L AU - Garboczi, Edward J AU - Toman, Blaza PY - 2017 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-187 DO - 10.6028/NIST.SP.260-187 ER -