Journal article
Multiphase Sphere Modeling of High-Volume Fly Ash Concrete: Freezing–Thawing Performance
Journal of materials in civil engineering, Vol.33(7), p.4021168
07/01/2021
Handle:
https://hdl.handle.net/2376/120910
Abstract
AbstractReplacing more than 50% of the cement in concrete with fly ash produces high-volume fly ash (HVFA) concrete, which likely reduces the life-cycle cost and environmental footprints of concrete. In cold climates, the susceptibility of HVFA concrete to freezing–thawing cycles is a durability concern if no appropriate measures are taken. This study modeled the degradation of dynamic modulus of elasticity of HVFA concrete during the freezing–thawing cycles. A four-phase sphere composite model considering the unhydrated fly ash particles in HVFA concrete is proposed to interpret the change in dynamic modulus of elasticity. The modeled values were in good agreement with the measured values; therefore, this model sheds new light on the deterioration of HVFA concrete caused by freeze/thaw damage cycles. Parameter analysis clarified the influence of the key factors in this model.
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Details
- Title
- Multiphase Sphere Modeling of High-Volume Fly Ash Concrete: Freezing–Thawing Performance
- Creators
- Sen Du - Harbin Institute of Technology Washington State Univ. Graduate Research Assistant, School of Transportation Science and Engineering, , Harbin 150090, ; Graduate Research Assistant, Dept. of Civil and Environmental Engineering, , Pullman, WA 99164-2910. EmailYong Ge - Harbin Institute of Technology Professor, School of Transportation Science and Engineering, , Harbin 150090, . EmailXianming Shi - Washington State Univ. Associate Professor, Dept. of Civil and Environmental Engineering, , Pullman, WA 99164-2910 (corresponding author). ORCID: . Email
- Publication Details
- Journal of materials in civil engineering, Vol.33(7), p.4021168
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- American Society of Civil Engineers
- Identifiers
- 99900612852601842
- Language
- English
- Resource Type
- Journal article