Cementitious Materials Technology

Understanding and improving the behavior of cement-based materials

Dr. Gilson Lomboy

Principal Investigator

Featured Project

Cold Weather Reinforced Concrete

The goal of this project is to apply cold weather concrete mixture technology developed at CRREL to reinforced concrete applications. The investigators are conducting a systematic step-by-step process of studying the characteristics of Cold Weather Concrete (CWC) and reinforcements. The first stage is to evaluate the behavior of the constituent materials of the reinforced concrete under “normal” (20° to 25° C) and cold weather conditions.

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Recent Research Projects

The objective of this project is to develop a guideline that covers temporary traffic control method innovations with the aim of enhancing the safety of the vehicle, pedestrian and bicyclists of both event attendants and road users at special events.

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An emerging technology for deicing and anti-icing of roadways and pavements involves the use of a thin layer of electrically conductive concrete. This layer, when given a power source, can generate adequate heat to prohibit ice formation on a pavement. This is important during the winter for airfields and runways to ensure safety and low maintenance costs to keep snow and ice from forming. While this technology could improve the life of a pavement during the winter season, it has not been proven to be placed in a winter season. This project will consist of developing conductive cold weather concrete that allows placement during sub-freezing temperatures and will continue to be used as a durable deicing pavement through its lifetime.

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This study investigates the impact of different fiber types on the performance of asphalt mixtures in the laboratory and in the field. It also quantifies the economic benefits from adding fiber to asphalt roads. Five different fiber types (carbon, glass, forta-fi, polyester, and basalt) is used to reinforce the asphalt mixtures. A life-cycle cost analysis (LCAA) of fiber-reinforced asphalt mixtures utilized in military roadways and airfields will be conducted to quantify the benefits of using fibers in reinforcing asphalt mixtures.

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