@misc{1165601, author = {James V Ryan and E C Tuma and D K Ward}, title = {Evaluation of refractory qualities of concretes for jet aircraft warm-up, power check maintenance aprons, and runways ::quarterly report}, year = {1963}, month = {1963-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.7780}, language = {en}, }