Publication Type:  2018 FAST Act UTC

Publications:

Title	Publication Date	Publication Name	Publication Type	Author(s)
Deep Learning-Based Steel Bridge Corrosion Segmentation and Condition Rating Using Mask RCNN and YOLOv8	2023	Deep Learning-Based Steel Bridge Corrosion Segmentation and Condition Rating Using Mask RCNN and YOLOv8	2018 FAST Act UTC	Ameli, Zahra Nesheli, Shabnam Jafarpoor Landis, Eric
Using Probe Data to Understand the Impact of the Covid-19 Pandemic on Roadway Safety	2023	Using Probe Data to Understand the Impact of the Covid-19 Pandemic on Roadway Safety	2018 FAST Act UTC	Marshall, Ennis
Time-dependent properties of steam cured non-proprietary ultra high-performance concretes	2023	Time-dependent properties of steam cured non-proprietary ultra high-performance concretes	2018 FAST Act UTC	Rai, Bijaya Wille, Kay
Functionalization of Metakaolin with Non-Ionic Surfactants: Swelling and Pozzolanic Reactivity	2023	Functionalization of Metakaolin with Non-Ionic Surfactants: Swelling and Pozzolanic Reactivity	2018 FAST Act UTC	Luo, Dayou Wei, Jianqiang
Efficacy of functionalized sodium-montmorillonite in mitigating alkali-silica reaction	2023	Efficacy of functionalized sodium-montmorillonite in mitigating alkali-silica reaction	2018 FAST Act UTC	Luo, Dayou Wei, Jianqiang
Phase Evolution and Property Development of Alkali-Silica	2023	Phase Evolution and Property Development of Alkali-Silica	2018 FAST Act UTC	Sinha, Arkabrata Wei, Jianqiang
COVID-19 and transport safety	2023	COVID-19 and transport safety	2018 FAST Act UTC	Marshall, Ennis Shirazi, Mohammadali Ivan, John
Phase evolution and mechanical-hydroscopic properties of alkali-silica reaction gels modified by magnesium nitrate	2023	Phase evolution and mechanical-hydroscopic properties of alkali-silica reaction gels modified by magnesium nitrate	2018 FAST Act UTC	Sinha, Arkabrata Wei, Jianqiang
Metakaolin (MK) has been widely used in modifying cement and designing high-performance concrete, while the role of this alumino-silicate mineral has not been fully exploited due to its low reaction degree, especially at high-volume incorporations. To enhance the pozzolanic reactivity, functionalization of MK particles with two non-ionic surfactants, namely polyoxyethylene (9) nonylphenylether (PONPE9) and toctyl phenoxy poly ethoxyethanol (TX100), are investigated in this study under a hypothesis that the intercalations of the surfactants into MK’s interlayer space can trigger changes in structure and properties. The dry MK particles were mixed with aqueous solutions with two surfactant concentrations to reach two surfactant loadings in MK at its 1.0 and 6.0 cation exchange capacity (CEC). The surfactant uptake behavior of MK and its influence on the hygroscopic swelling, pozzolanic reactivity, and dissolution behavior in simulated cement pore solution were characterized. The results indicate that, compared with TX100, PONPE9 can be absorbed by MK more easily. After functionalization at 1.0 and 6.0 CEC, MK exhibited surfactant mass fractions of 1.85% and 3.81% for TX100, and 1.95% and 5.39% for PONPE9, respectively. The intercalation of surfactants resulted in an up to 28.6% increase in the swell index of MK when absorbing water. A more robust aluminum and silicon dissolution behavior in the simulated cement pore solution was observed from the functionalized MK. Increases in reaction heat and lime consumption capacity were obtained in the MK-lime blends indicating the enhanced pozzolanic reactivity of MK after functionalization and paving a path to enhance the role of MK in future sustainable concrete design.	2023	Metakaolin (MK) has been widely used in modifying cement and designing high-performance concrete, while the role of this alumino-silicate mineral has not been fully exploited due to its low reaction degree, especially at high-volume incorporations. To enhance the pozzolanic reactivity, functionalization of MK particles with two non-ionic surfactants, namely polyoxyethylene (9) nonylphenylether (PONPE9) and toctyl phenoxy poly ethoxyethanol (TX100), are investigated in this study under a hypothesis that the intercalations of the surfactants into MK’s interlayer space can trigger changes in structure and properties. The dry MK particles were mixed with aqueous solutions with two surfactant concentrations to reach two surfactant loadings in MK at its 1.0 and 6.0 cation exchange capacity (CEC). The surfactant uptake behavior of MK and its influence on the hygroscopic swelling, pozzolanic reactivity, and dissolution behavior in simulated cement pore solution were characterized. The results indicate that, compared with TX100, PONPE9 can be absorbed by MK more easily. After functionalization at 1.0 and 6.0 CEC, MK exhibited surfactant mass fractions of 1.85% and 3.81% for TX100, and 1.95% and 5.39% for PONPE9, respectively. The intercalation of surfactants resulted in an up to 28.6% increase in the swell index of MK when absorbing water. A more robust aluminum and silicon dissolution behavior in the simulated cement pore solution was observed from the functionalized MK. Increases in reaction heat and lime consumption capacity were obtained in the MK-lime blends indicating the enhanced pozzolanic reactivity of MK after functionalization and paving a path to enhance the role of MK in future sustainable concrete design.	2018 FAST Act UTC	Luo, Dayou Wei, Jianqiang
Recycling Large-Scale 3D Printed Polymer Composite Precast Concrete Forms	2023	Recycling Large-Scale 3D Printed Polymer Composite Precast Concrete Forms	2018 FAST Act UTC	Schweizer, Katie Bhandari, Sunil Lopez-Anido, Roberto Wang, Lu