A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Exploring a Chemo-Mechanical Approach to Understand the Expansive Behavior of Sulfate Bearing Soils
Sustainability of transportation infrastructure is influenced by how construction and geological materials respond to varying environmental conditions. A number of recent construction projects in Ohio have experienced significant sulfate induced heaving in cement stabilized soils. The involved mechanisms have been linked to the formation of ettringite as well as osmosis induced swelling. This paper presents a chemo-mechanical approach to better understand the expansive behavior of stabilized sulfate bearing soils. The interplay between different mechanisms is examined in numerical simulations based on recently reported experimental results. The simulation results show that ettringite formation and osmosis swelling can play comparable roles in the heaving process. The kinetics of osmosis is also explored and the modelling results are consistent with the experimental observations.
Exploring a Chemo-Mechanical Approach to Understand the Expansive Behavior of Sulfate Bearing Soils
Sustainability of transportation infrastructure is influenced by how construction and geological materials respond to varying environmental conditions. A number of recent construction projects in Ohio have experienced significant sulfate induced heaving in cement stabilized soils. The involved mechanisms have been linked to the formation of ettringite as well as osmosis induced swelling. This paper presents a chemo-mechanical approach to better understand the expansive behavior of stabilized sulfate bearing soils. The interplay between different mechanisms is examined in numerical simulations based on recently reported experimental results. The simulation results show that ettringite formation and osmosis swelling can play comparable roles in the heaving process. The kinetics of osmosis is also explored and the modelling results are consistent with the experimental observations.
Exploring a Chemo-Mechanical Approach to Understand the Expansive Behavior of Sulfate Bearing Soils
Hu, Liang-Bo (author) / Sigdel, Pawan (author)
International Symposium on Systematic Approaches to Environmental Sustainability in Transportation ; 2015 ; Fairbanks, Alaska
2015-07-31
Conference paper
Electronic Resource
English
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