Fiber-Reinforced Concrete For Hardened Shelter Construction

摘要

A test program was conducted to develop a fiber- and rebar-reinforced beamdesign(s) using lightweight, high-strength concrete. The goal of the testing program was to develop a beam design(s) that provides superior performance at a reduced cost and weight versus the symmetrically rebar reinforced beam design using normal-weight, standard-strength concrete currently used by the U.S. Air Force in hardened structure construction. Beams of various designs, including a baseline symmetrically reinforced beam designed using current hardened structure criteria, were fabricated and tested on a load-frame under deflection control and flexural third-point loading to generate load-deflection curves. From these curves, the ductility, energy absorption characteristics, and overall material toughness of each beam design were determined. Airbase Operability, Air Mobile Hardened Structures, Hardened Structures, Modular Hardened Structures, Fiber-Reinforced Concrete.