| Title |
An Experimental Study of Strength and Autogenous Shrinkage of Fiber Reinforced Ultra High-Strength Concrete |
| Authors |
Lee, Hye-Jin ; Ha, Jung-Soo ; Paik, Min-Su ; Lee, Young-Do ; Jung, Sang-Jin |
| Keywords |
Fiber Reinforced Concrete ; Steel Fiber ; PET Fiber ; Zirconium Silica Fume |
| Abstract |
Ultra high-performance concrete which has recently been studied was developed to complement the brittle behaviour and dynamic uppermost limit of high strength concrete. Fiber reinforced concrete which mixed steel fiber is receiving attention as an alternative about this and is being developed to complement the disadvantages of high strength concrete including lower toughness coefficients and crack resistance and spalling in fires. Review about fiber reinforced ultra high-strength concrete that this study tries to treat includes reduction of autogenous shrinkage generated by high cement content per unit volume of concrete, evaluation of compressive and tensile strength to lower internal and external spalling resistance and fragility factors of member of framework, and flow characteristics of concrete which doesn't harden according to steel fiber amounts and used materials. As the result, the more fiber reinforcement increases, the more compression and tensile strength increase and deformation control of cement matrix and improvement of energy absorption ability showed the great effect in shrinkage reduction. |