Assessment of high-performance concrete mix designs for tennessee bridge decks

Title: Assessment of high-performance concrete mix designs for tennessee bridge decks
Author(s): R. Salem, E. Burdette
Paper category : conference
Book title: Fifth International RILEM Conference on Reflective Cracking in Pavements
Editor(s): C. Petit, I.L. Al-Qadi and A. Millien
Print-ISBN: 2-912143-47-0
e-ISBN: 2912143764
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 545 - 552
Total Pages: 8
Nb references: 14
Language: English

Abstract: This paper describes a laboratory investigation of the development of an optimum high-performance concrete (HPC) mixture for Tennessee cast-in-place concrete bridge decks. The main objective of the study was to explore the performance of four types of concrete mixtures by varying the quantity of fly ash, slag, and silica fumes, while keeping the cementitious material and water-cementitious material ratio constant. The Tennessee Department of Transportation (TDOT) Class D concrete was used as the control mix. Various parameters relevant to bridge deck performance were evaluated, including compressive strength, modulus of elasticity, drying shrinkage, freeze-thaw durability, and chloride ion permeability. Based on the results of this study, all modified control mixes exhibited higher compressive strength than the corresponding control Class D mix. Mixes F2 (fly ash plus silica fume) and S2 (slag plus silica fume) had higher compressive strength, lower chloride ion permeability values within the "very low" category, and lower shrinkage values than control mix F1 (fly ash only). Therefore, either mix can be recommended to replace TDOT Class D concrete; however, mix F2 is the most cost-effective.

Online publication: 2004-04-15
Publication type : full_text
Public price (Euros): 0.00