TY - GEN AU - Pendergast, W L AU - Enoch, CR AU - Heindl, R A AU - Clevenger, R A C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1952-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.2198 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1952 TI - Evaluation of refractory qualities of concretes for jet aircraft warm up, power check, and maintenance aprons, quarterly report on: ER -