TY - GEN AU - W L Pendergast AU - E C Tuma AU - L E Mong AU - E Trattner C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1957-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.5233 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1957 TI - Evaluation of refractory qualities of concretes for jet aircraft warm-up, power check, maintenance aprons, and runways ::quarterly report ER -