Strengthening Lightweight Concrete Against Impact Loads Using Engineered Cementitious Composites
Volume Title: ICASGE2025
Paper ID : 1009-ICASGE-FULL (R1)
Authors
Department of Civil Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, Canada.
Abstract
This study investigated the feasibility of employing engineered cementitious composites to enhance the strength of lightweight concrete under impact loads. To conduct the tests, cylindrical specimens were constructed in a two-layer composite system featuring various configurations, allowing for a thorough analysis of performance. The testing adhered to ACI Committee 544 procedures, ensuring standardized evaluation methods. In addition to the composite specimens, further samples were fully cast using lightweight concrete and engineered cementitious composites for comparative analysis. The results revealed significant potential for the developed hybrid composites, demonstrating their effectiveness in improving the impact resistance of lightweight structures. These findings suggest that integrating engineered cementitious composites can be a viable strategy for optimizing the performance of lightweight concrete in applications subject to dynamic loads. Such advancements could lead to the development of safer, more resilient lightweight structures in various construction contexts, ultimately contributing to enhanced structural integrity and longevity. This research opens pathways for further exploration and application of hybrid materials in structural engineering.
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