Age-dependent Size Effect and Fracture Characteristics of Ultra High Performance Concrete

@article{Wan2016AgedependentSE,
  title={Age-dependent Size Effect and Fracture Characteristics of Ultra High Performance Concrete},
  author={Lin Wan and Roman Wendner and G. Cusatis},
  journal={arXiv: Materials Science},
  year={2016}
}
This paper presents an investigation of the age-dependent size effect and fracture characteristics of an ultra high performance concrete (UHPC). The study is based on a unique set of experimental data connecting aging tests for two curing protocols of one size and scaled size effect tests of one age. Both aging and size effect studies are performed on notched three point bending tests. Experimental data is augmented by state of the art simulations employing a recently developed discrete element… Expand
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References

SHOWING 1-10 OF 66 REFERENCES
Behavior of Ultra High Performance Concrete at Early Age: Experiments and Simulations
TLDR
The proposed hygro-thermo-chemo-mechanical coupled early age framework (HTC-A-LDPM) can comprehensively capture cement hydration as well as strength development for the UHPC. Expand
Analysis of the behavior of ultra high performance concrete at early age
Abstract Ultra high performance concretes (UHPCs) are cementitious composite materials with high level of performance characterized by high compressive strength, high tensile strength and superiorExpand
Age-Dependent Lattice Discrete Particle Model for Quasi-Static Simulations
For decades, concrete plays an important role worldwide as a structural material. Construction planning and reliability assessment require a thorough insight of the effects that determine concreteExpand
A Hygro-Thermo-Chemo Mechanical Model for the Simulation of Early Age Behavior of Ultra-High-Performance Concrete
Ultra-high performance concretes (UHPCs) are cementitious composite materials with high level of performance including but not limited to high compressive strength, tensile strength and durability,Expand
Identification of concrete fracture parameters through size effect experiments
Abstract This paper deals with the identification of concrete fracture parameters through indirect methods based on size effect experiments. These methods utilize the size effect curve (structuralExpand
Multiscale hydro-thermo-mechanical model for early-age and mature concrete structures
TLDR
The whole model has been implemented in the ATENA software, including also the effect of early-age creep, autogenous and drying shrinkage, and a good prediction of temperature fields during concrete hardening and a reasonable performance of the mechanical part. Expand
Fracture Characteristics of Concrete at Early Ages
The objective of this study is to examine fracture characteristics of concrete at early ages, i.g. critical stress intensity factor, critical crack-tip opening displacement, fracture energy, andExpand
A multiscale micromechanics-hydration model for the early-age elastic properties of cement-based materials
Abstract The E-modulus of early age cement-based materials, and more importantly, its evolution in time, is one of the most critical material-to-structural design parameters affecting the likelihoodExpand
Size Effect in Blunt Fracture: Concrete, Rock, Metal
The fracture front in concrete, as well as rock, is blunted by a zone of microcracking, and in ductile metals by a zone of yielding. This blunting causes deviations from the structural size effectExpand
Two-scale Study of Concrete Fracturing Behavior
The cohesive crack model is, nowadays, widely used for the analysis of propagating cracks in concrete and other quasi-brittle materials. So far the softening curve, which gives the stress transmittedExpand
...
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