Structural behavior of engineered cementitious composite substrate slab overlays for bridge deck and pavement applications

Engineered cementitious composites (ECC) represent a significant advancement in construction materials, especially for overlay applications on bridge decks and pavements. Unlike traditional concrete, ECC exhibits exceptional ductility and tensile strength, effectively mitigating its brittleness. This distinctive characteristic enables ECC to endure increased levels of loading, cracking, and deformation without experiencing catastrophic failure. This study examined the behavior of existing substrate concrete slab (SCS) with different percentages of mineral admixtures (MA's) blended ECC overlays for bridge deck and pavement applications. A total of twenty-one types of ECC mixtures were developed with three different MA's: ground granulated blast furnace slag (GGBS), bagasse ash (BA), and rice husk ash (RHA). Additionally, the abrasion resistance, bonding, and mechanical properties of each mixture, as well as the behavior of SCS without overlay, were investigated to further understand the suitability of ECC for overlay applications. The results showed that ECC with MA's enhanced the structural behavior of SCS, improving bonding and mechanical properties. The ultimate load carrying capacity of ECC with 40 % GGBS, 10 % BA, and 10 % RHA achieved 228 kN, 212 kN, and 176 kN, respectively, which are almost 125 times higher than that of SCS without overlay. This study holds promise for improving the understanding of the behaviors of SCS with different ECC overlays for bridge deck and pavement applications.

• Record URL:
  • https://doi.org/10.1016/j.conbuildmat.2024.139736
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0950061824048785
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. Abstract reprinted with permission of Elsevier.
• Authors:
  • Shanmugasundaram, N
  • Praveenkumar, S
  • P S, Ashwin Kumar
• Publication Date: 2025-1-17

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 139736
• Serial:
  • Construction and Building Materials
  • Volume: 459
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Bridge decks; Cement; Composite materials; Concrete overlays; Slabs; Structural mechanics
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 01948039
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 6 2025 9:23AM