Crack Resistant Concrete Material for Transportation Construction

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84828/1/Li_TRB2004.pd

Shotcreting with ECC

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84822/1/Li_Fischer_Lepech_Shotcreting.pd

Guiding the design and application of new materials for enhancing sustainability performance: Framework and infrastructure application

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84738/1/MRSProceedings2006.pd

Incorporating pavement deterioration uncertainty into pavement management optimization

This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Pavement Engineering on 2022, available online: https://www.tandfonline.com/doi/full/10.1080/10298436.2020.1837827[EN] Pavement management systems can be used to efficiently allocate limited maintenance budgets to better align with pavement deterioration. However, pavement deterioration is subject to uncertain factors that complicate the prediction of future pavement conditions accurately, entailing differences in the optimum maintenance strategy. This paper addresses this challenge by introducing a method to aid local engineers in optimising the scheduling of maintenance activities under uncertain pavement deterioration conditions. Markov chains are used to simulate the variability of life-cycle performance. Moreover, a multi-objective optimisation of an urban network is carried out to find the maintenance programme that minimises the mean life-cycle cost, maximises the mean user benefit, and minimises the standard deviation of life-cycle cost. This third objective enables the optimisation routine to minimise the possibility of unintentionally increasing the life-cycle cost due to system variability. This approach results in a reduction of the life-cycle cost variability by up to 62%, provides pavement strategies that benefit road users as a result of better pavement conditions, and reduces the risk of resorting to costly future maintenance activities.This work was supported by the Spanish Ministry of Science and Innovation with the European Regional Development Fund (grants BIA2017-85098-R and RTC-2017-6148-7).García-Segura, T.; Montalbán-Domingo, L.; Llopis-Castelló, D.; Lepech, MD.; Sanz-Benlloch, MA.; Pellicer, E. (2022). Incorporating pavement deterioration uncertainty into pavement management optimization. International Journal of Pavement Engineering. 23(6):2062-2073. https://doi.org/10.1080/10298436.2020.18378272062207323

Overview of a Cyber-enabled Wireless Monitoring System for the Protection and Management of Critical Infrastructure Systems

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84821/1/OverviewSHMTech.pd

Techno-Ecological Synergy: A Framework for Sustainable Engineering

Even though the importance of ecosystems in sustaining all human activities is well-known, methods for sustainable engineering fail to fully account for this role of nature. Most methods account for the demand for ecosystem services, but almost none account for the supply. Incomplete accounting of the very foundation of human well-being can result in perverse outcomes from decisions meant to enhance sustainability and lost opportunities for benefiting from the ability of nature to satisfy human needs in an economically and environmentally superior manner. This paper develops a framework for understanding and designing synergies between technological and ecological systems to encourage greater harmony between human activities and nature. This framework considers technological systems ranging from individual processes to supply chains and life cycles, along with corresponding ecological systems at multiple spatial scales ranging from local to global. The demand for specific ecosystem services is determined from information about emissions and resource use, while the supply is obtained from information about the capacity of relevant ecosystems. Metrics calculate the sustainability of individual ecosystem services at multiple spatial scales and help define necessary but not sufficient conditions for local and global sustainability. Efforts to reduce ecological overshoot encourage enhancement of life cycle efficiency, development of industrial symbiosis, innovative designs and policies, and ecological restoration, thus combining the best features of many existing methods. Opportunities for theoretical and applied research to make this framework practical are also discussed

Durability and Long Term Performance of Engineered Cementitious Composites

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84787/1/Durability_LepechAndLi2005.pd

Water Permeability of Cracked Cementitious Composites

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84690/1/Lepech_ICF11.pd

Long Term Durability Performance of Engineered Cementitious Composites

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84733/1/LongtermDuraECC_Lepech.pd

Large Scale Processing of Engineered Cementitious Composites

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/84899/1/lepech-ecc-processing-2008.pd