Influence of reinforcing bar type on autogenous shrinkage stress and bond behavior of ultra high performance fiber reinforced concrete

2014 ◽  
Vol 48 ◽  
pp. 150-161 ◽  
Author(s):  
Doo-Yeol Yoo ◽  
Jung-Jun Park ◽  
Sung-Wook Kim ◽  
Young-Soo Yoon
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
Autogenous Shrinkage ◽  
Fiber Reinforced Concrete ◽  
Shrinkage Stress ◽  
Fiber Reinforced ◽  
Bond Behavior ◽  
Reinforcing Bar ◽  
High Performance Fiber

Optimized Ultra High Performance Fiber Reinforced Concrete Mixture with Intensified Volumetric Stability

2014 ◽  
Vol 627 ◽  
pp. 389-392
Author(s):  
Jung Jun Park ◽  
Doo Yeol Yoo ◽  
Jun Hyoung Park ◽  
Sung Wook Kim
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
Shrinkage Strain ◽  
Strength Criterion ◽  
Fiber Reinforced Concrete ◽  
Shrinkage Stress ◽  
Restrained Shrinkage ◽  
Fiber Reinforced ◽  
Design Strength ◽  
High Performance Fiber

This study performed compressive, tensile and restrained shrinkage tests to find out the optimized mixture including shrinkage reducing admixture (SRA) and expansive admixture (EA) enabling to reduce the shrinkage of Ultra High Performance Fiber Reinforced Concrete (UHPFRC). The test results showed that the mixture using 1% of SRA and 7.5% of EA satisfied the design strength criterion despite of slight loss in the compressive and tensile strengths. In addition, this mixture exhibited the lowest restrained shrinkage strain by offsetting the quick setting and delaying the development of the restrained shrinkage stress.

Influence of technological factors on the properties of ultra-high-performance fiber reinforced concrete

2020 ◽  
pp. 135-147
Author(s):  
Igor Chilin ◽  
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Technological Factors ◽  
High Performance Fiber

Приведены результаты исследований и выполнена оценка влияния технологических факторов на реологические свойства самоуплотняющихся сталефибробетонных смесей, определены кратковременные и длительные физико-механические и деформативные характеристики сверхвысокопрочного сталефибробетона, включая определение его фактической морозостойкости.

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