Evaluation of ultralightweight foamed glass aggregates in precast concrete

This project investigates the use of foamed glass aggregates in lightweight precast concrete. Precast mixes are evaluated for compression and split-tension strength, and durability is assessed through rapid chloride permeability, thermal conductivity, alkali silica reactivity, and freeze–thaw performance. Mixes containing a 100% or 50% replacement of gravel with foamed glass aggregates are evaluated. The 100% mixes have a 28-day compression strength = 23.3–27.89 MPa which is acceptable per structural lightweight concrete standards (ASTM C330), but the split-tension strength falls short of ASTM C330 requirements. The 50% mixes have acceptable strength but exceed the maximum density allowed for lightweight concrete in ASTM C330. The mixes exhibited low–moderate permeability but poor freeze–thaw resistance. All of the proposed mixes with one exception have acceptable expansion due to alkali silica reactivity. The thermal conductivity of the mixes varies from typical lightweight to normal weight concrete ranges with respect to the aggregate replacement ratio.

This is the peer reviewed version of the following article: [Evaluation of ultralightweight foamed glass aggregates in precast concrete. Structural Concrete 24, 4 p5406-5416 (2023)], which has been published in final form at https://doi.org/10.1002/suco.202200363. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions: https://authorservices.wiley.com/author-resources/Journal-Authors/licensing/self-archiving.html#3.

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Work Title Evaluation of ultralightweight foamed glass aggregates in precast concrete
Access
Open Access
Creators
  1. Grady Mathews
  2. Brady Wertz
  3. Taha Khan
  4. Khashayar Jafari
  5. Theresa Loux
  6. Robert Bylone
Keyword
  1. Glass aggregates
  2. Lightweight concrete
  3. Durability
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Structural Concrete
Publication Date December 12, 2022
Publisher Identifier (DOI)
  1. https://doi.org/10.1002/suco.202200363
Deposited December 05, 2023

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Version 1
published

  • Created
  • Added Manuscript__With_Figures_and_Tables_-1.docx
  • Added Creator Grady Mathews
  • Added Creator Brady Wertz
  • Added Creator Taha Khan
  • Added Creator Khashayar Jafari
  • Added Creator Theresa Loux
  • Added Creator Robert Bylone
  • Published
  • Updated Keyword Show Changes
    Keyword
    • Glass aggregates, Lightweight concrete, Durability
  • Deleted Manuscript__With_Figures_and_Tables_-1.docx
  • Added Revised Manuscript with Figures and Tables.docx
  • Updated