Conventional Concrete and UHPC Performance–Damage Relationships Identified Using Computed Tomography

AbstractTo make significant advances in concrete engineering, it will be necessary to understand the behavior of cementitious materials at the microscale. To achieve this goal, the nature of damage initiation and growth needs to be understood at very small scales. This research program sought to inc...

Full description

Saved in:
Bibliographic Details
Published in:Journal of engineering mechanics 2016-12, Vol.142 (12)
Main Authors: Oesch, Tyler S, Landis, Eric N, Kuchma, Daniel A
Format: Article
Language:English
Subjects:
Cements
Computation
Computer aided tomography
Concretes
Finite element method
Fracture mechanics
Mathematical models
Parameter identification
Parameters
Technical Papers
Tomography
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:AbstractTo make significant advances in concrete engineering, it will be necessary to understand the behavior of cementitious materials at the microscale. To achieve this goal, the nature of damage initiation and growth needs to be understood at very small scales. This research program sought to increase that understanding through the collection of microscale data using X-ray computed tomography (CT). The tensile and compression behavior of both ultra-high performance concrete (UHPC) and conventional concrete were investigated as a part of this program. Relationships were identified between mechanical performance parameters, such as stiffness degradation and work of load, and cracking parameters, such as crack volume and crack surface area, that could be quantified mathematically and implemented into future finite element analysis (FEA) models. The results of this research program have the potential to improve the accuracy and resiliency of numerical models and to provide insight to the materials engineering community concerning the optimal use of UHPC.
ISSN:0733-9399
1943-7889
DOI:10.1061/(ASCE)EM.1943-7889.0001168