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  • ERDC Engineer Studies, Dances on Ice

    Passion is a key component to success, whether that be for work, a hobby or a sport. In the workplace, passion has motivated Marin Blaisdell to be a successful materials engineer for the U.S. Army Engineer Research and Development Center’s Cold Regions Research and Engineering Laboratory (CRREL). But a separate passion has driven her to compete in figure skating at the national level. Blaisdell knows the importance of dedication and precision, whether she is in Anchorage, Alaska, performing CRREL strength tests on snow patches used for rapid airfield crater damage repair, or perfecting a double salchow-single loop-double loop; she knows it takes perseverance to achieve her best.

  • New Technology Successfully Demonstrated During Arctic Exercise

    During a multi-service exercise, the U.S. Army Engineer Research and Development Center (ERDC) Cold Regions Research and Engineering Laboratory (CRREL) successfully demonstrated a groundbreaking technology to detect airborne targets.

  • Making Waves: ERDC studies oil spill cleanup techniques

    In the event of an oil spill in the ocean, such as an oil tanker tipping over, its container getting breached or an oil rig’s pipeline leaking, immediate response for cleanup is needed. However, at times, it can be difficult to determine the best means of effective oil-spill cleanup.

  • CRREL tests new ways to measure smoke density

    CRREL partners with the U.S. Coast Guard's Research and Development Center and the Environmental Protection Agency to test an aerial drone to determine how effective the device is for measuring air quality and environmental impact of burning oil on water. The aerial drone is a new means of capturing these measurements, and CRREL is one of the few federal agencies with the knowledge, permissions, licenses, and facilities to accommodate in situ burns.

  • A Cold Start: ERDC tests Stryker batteries in frigid temps

    Many people living in northern regions of the United States have experienced getting in a car on a cold, winter morning, turning the key in the ignition and having the engine starter sputter, but not start. This relatable inconvenience is one that many people have dealt with. However, for U.S. military service members called to action in regions such as northern Alaska, there is no time to deal with a vehicle that won’t start in the extreme cold temperatures. This is a dilemma that engineers like Kathryn Trubac, a research general engineer for the U.S. Army Engineer Research and Development Center (ERDC) Cold Regions Research and Engineering Laboratory (CRREL), are working to resolve.

  • Cold Regions Laboratory celebrates Engineer Day by recognizing personnel

    The U.S. Army Engineer Research and Development Center’s (ERDC) Cold Regions Research and Engineering Laboratory (CRREL) in Hanover, New Hampshire, celebrated Engineer Day July 15.

  • Long-Term Durability of Cold Weather Concrete: Phase II

    Abstract: Recent laboratory results confirm that it is possible to protect concrete from freezing solely using chemical admixtures and indicate that the amount of admixture required may be significantly less than previously recommended. Researchers have also verified that admixture-based freeze protection can produce concrete that is durable to winter exposure for a minimum of 20 years, through petrographic examination of core specimens obtained from past field demonstrations. Freeze protection for concrete using chemical admixtures alone has been an area of active research for 3 decades; however, the most recent methodology recommends very high addition rates of accelerating and corrosion inhibiting admixtures, which result in significant challenges, including slump loss, rapid setting, and potentially excessive temperature rise. As part of a laboratory study, researchers systematically varied the dosage of freeze protection admixtures used in concrete cured in a 23 °F environment. Preliminary findings indicate that a 50% reduction in admixture dose maintained adequate freeze protection and resulted in compressive strengths exceeding those of room-temperature controls at 7 and 28 days. The combination of improved handling, reduced cost, and verified durability associated with the use of admixtures for freeze protection makes a compelling case for broader adoption of this technique in winter operations

  • Optical and Acoustical Measurement of Ballistic Noise Signatures

    Abstract: Supersonic projectiles in air generate acoustical signatures that are fundamentally related to the projectile’s shape, size, and velocity. These characteristics influence various mechanisms involved in the generation, propagation, decay, and coalescence of acoustic waves. To understand the relationships between projectile shape, size, velocity, and the physical mechanisms involved, an experimental effort captured the acoustic field produced by a range of supersonic projectiles using both conventional pressure sensors and a schlieren imaging system. The results of this ongoing project will elucidate those fundamental mechanisms, enabling more sophisticated tools for detection, classification, localization, and tracking. This paper details the experimental setup, data collection, and preliminary analysis of a series of ballistic projectiles, both idealized and currently in use by the U.S. Military.

  • RD20 fosters collaboration

    With scientists, engineers and other professionals spread across seven laboratories and multiple fields sites across the country, the U.S. Army Engineer Research and Development Center (ERDC) network is vast. But last week, ERDC hosted a virtual symposium – RD20 – with the goal of further connecting researchers scattered in various laboratories and locations throughout the country to enhance the organization’s ability to solve the nation’s toughest engineering challenges.

  • ERDC’s Cold Regions Research and Engineering Laboratory breaks ground for climatic chamber building

    The U.S. Army Engineer Research and Development Center’s (ERDC) Cold Regions Research and Engineering Laboratory (CRREL), along with U.S. Sen. Maggie Hassan, and U.S. Army Corps of Engineers (USACE) New England District broke ground together for CRREL’s new Climatic Chamber Building Oct. 16 at the Hanover, New Hampshire, campus. The Climatic Chamber Building will serve as a Material Evaluation Facility. The facility will provide a critical means to examine and test extreme cold-weather environments to develop and validate Army field materiel, which is required for Soldier and unit readiness.