356
4000.016
Kluge, Ralph W.; Morris M. Sparks and Edward C. Tuma
Journal of the ACI
Journal
ACI
1949
May, Vol. 20, No. 9
625-642
N
Results of studies on lightweight-aggregate concretes made by the National Bureau of Standards at the request of the Housing and Home Finance Agency (formerly the National Housing Agency) are reported in this paper. Aggregates studied were expanded clay, shale, and slate; three types of expanded blast-furnace slag; expanded vermiculite and perlite; sintered diatomite and fly ash; and a pumice. Concretes of various proportions were made from these aggregates and determinations were made of the weight per cubic foot, compressive and transverse strength, shrinkage, elastic modulus, absorption, resistance to freezing and thawing and thermal conductivity. Test results are briefly discussed and summarized.