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Home > News and Events > News > News Detail
9/24/2015
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Every year, a substantial amount of ready-mixed concrete is returned to concrete plants for disposal due to many reasons, such as excessive slump loss during transport, surplus production and trial batches. One of the main reasons for rejecting a great number of truckloads of concrete every year is due to the strict accordance to the 90-minute time limit. To further the research into this problem, the ACI Student Chapter at New Jersey Institute of Technology has been awarded $20,000 by the ACI New Jersey Chapter for a research proposal—“Evaluation Of The 90-Minute Rule as an Acceptance Criteria Considering Current Concrete Mix Design Technology and Mix Constituents.” Members of New Jersey Institute of Technology - ACI Student Chapter at the Spring 2015 ACI Convention in Kansas City, MO The proposed research aims to gain better understanding of how elapsed time affects the quality of a concrete load. In order to ensure that, a large number of concrete batches will be tested under different weather conditions and elapsed times. The research results would greatly benefit concrete suppliers, engineers, and inspectors in the concrete industry. Dr. Mohamed Mahgoub, Associate Professor in the Department of Engineering Technology at NJIT, and Dr. Nakul Ramanna, the Assistant to the Chair and Concrete Laboratory Manager, Department of Civil Engineering, are principal and co-principal investigators respectively. ACI Student membership is free and provides a wide range of learning and networking opportunities to enhance professional development. ACI's nationally recognized student competitions give students the opportunity to participate in interesting and educational concrete projects. Over $500,000 in awards has been issued during the last ten years by the ACI Foundation’s Scholarship Council. Learn more about ACI Scholarships and Fellowships. To learn more about the New Jersey Chapter – ACI visit www.njaci.com. Explore Chapters Explore Concrete Testing and Mixture Proportioning
Every year, a substantial amount of ready-mixed concrete is returned to concrete plants for disposal due to many reasons, such as excessive slump loss during transport, surplus production and trial batches. One of the main reasons for rejecting a great number of truckloads of concrete every year is due to the strict accordance to the 90-minute time limit.
To further the research into this problem, the ACI Student Chapter at New Jersey Institute of Technology has been awarded $20,000 by the ACI New Jersey Chapter for a research proposal—“Evaluation Of The 90-Minute Rule as an Acceptance Criteria Considering Current Concrete Mix Design Technology and Mix Constituents.”
Members of New Jersey Institute of Technology - ACI Student Chapter at the Spring 2015 ACI Convention in Kansas City, MO
The proposed research aims to gain better understanding of how elapsed time affects the quality of a concrete load. In order to ensure that, a large number of concrete batches will be tested under different weather conditions and elapsed times. The research results would greatly benefit concrete suppliers, engineers, and inspectors in the concrete industry.
Dr. Mohamed Mahgoub, Associate Professor in the Department of Engineering Technology at NJIT, and Dr. Nakul Ramanna, the Assistant to the Chair and Concrete Laboratory Manager, Department of Civil Engineering, are principal and co-principal investigators respectively.
ACI Student membership is free and provides a wide range of learning and networking opportunities to enhance professional development. ACI's nationally recognized student competitions give students the opportunity to participate in interesting and educational concrete projects.
Over $500,000 in awards has been issued during the last ten years by the ACI Foundation’s Scholarship Council. Learn more about ACI Scholarships and Fellowships.
To learn more about the New Jersey Chapter – ACI visit www.njaci.com.
Explore Chapters
Explore Concrete Testing and Mixture Proportioning
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