Concrete Design using Native Materials from the Navajo Nation

Details

• Creators:
  Vellingiri, Anusuya ; Largo, Shannon R (Jordan)
• Corporate Creators:
  Navajo Technical University
• Corporate Contributors:
  The Southern Plains Transportation Center (SPTC) Region 6 University Transportation Center (UTC) ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
• Subject/TRT Terms:
  Concrete Pavements Environmental Impacts Local Materials Mechanical Properties Mix Design Navajo Nation Volcanic Rock
• Publication/ Report Number:
  CY1-NTU-01
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report (October 2023 – January 2025
• Corporate Publisher:
  The Southern Plains Transportation Center (SPTC) Region 6 University Transportation Center (UTC)
• Abstract:
  This project investigates the use of volcanic aggregates from the El Malpais region near the Navajo Nation to optimize concrete mix designs for Jointed plain concrete pavements (JPCP). The goal is to reduce reliance on conventional aggregates, minimize adverse impacts, and promote local economic growth. By utilizing locally sourced materials, the study supports responsible development and preserves the Navajo Nation's cultural heritage. The research includes testing the mechanical properties of volcanic aggregate-based concrete, such as compressive strength, particle size distribution, and durability. Results show compressive strength ranging from 2400 to 2930 psi, but further optimization is needed to meet the American Concrete Institute (ACI) guideline standard of 4000–6000 psi for JPCP applications. Beyond technical analysis, the project emphasizes community engagement through workshops and training for local contractors and students, focusing on the benefits and proper use of volcanic aggregates. Long-term monitoring of pavements will evaluate durability and cost-effectiveness. This initiative supports economic development by reducing material transportation costs, empowering the Navajo Nation, with potential for other communities, and promoting responsible construction practices, contributing to resilient infrastructure suited to a community’s needs.
• Format:
  PDF
• Funding:
  69A3552348306
• Collection(s):
  University Transportation Centers
• Main Document Checksum:
  urn:sha-512:243622f273f311f3d4d3250c706a1925689caa2da5cf20625426a513f94917b42b4a34b244b9c8a5e49920381db45ecf1730f5b72bafdfaf3dd20c1dd9d1f399
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88302/dot_88302_DS1.pdf
• File Type:
  [PDF - 6.85 MB ]