High-Strength Concrete at High Temperature: An Overview.
High-Strength Concrete at High Temperature: An
Phan, L. T.
Utilization of High Strength/High Performance Concrete,
6th International Symposium. Proceedings. Volume 1.
June 2002, Leipzig, Germany, Konig, G.; Dehn, F.; Faust,
T., Editor(s)(s), 501-518 pp, 2002.
concretes; compressive strength; experiments; elastic
modulus; explosive spalling; spalling; temperature;
This paper presents results of NIST's experimental
program on the effects of elevated temperature exposure
on the mechanical properties and potential for explosive
spalling of high strength concrete (HSC). Mechanical
properties of HSC were measured by heating 100 x 200 mm
cylinders at 5 C/min to temperatures of up to 600 C, and
heat-induced pore pressure buildup was measured by
heating 100 x 200 x 200 mm blocks to the same
temperature level at the same heating rate. The results
of NIST mechanical property measurement are compared
with results obtained in other studies as well as with
existing code provisions to evaluate their applicability
to HSC. The paper also presents results of measurement
that indicate the efficacy of polypropylene fibers for
mitigation of explosive spalling.