Journal of Multidisciplinary Engineering Science andTechnology (JMEST)
Latex Modified Concrete (LMC) is ordinarily used as a thin overlay to shield bridge decks from the intensified application of deicers and environmental elements as well as the normal wear and tear due to traffic. LMC is an ideal concrete for bridge overlays due to its low permeability, inherent flexibility, and excellent adhesion. Another important quality for this concrete that can’t be neglected is its lifespan. Currently, the standard is to use 24.5 gallons of latex for every cubic yard of concrete needed (121 L/m3). Recognizing that the latex is an expensive ingredient and its cost may dramatically increase when the oil prices are sky rocketing, the immediate objective of this research is to study the impact of reducing the quantity of latex used in a cubic yard of concrete. The goal is to reduce the initial cost of making the LMC by decreasing the amount of latex without affecting its performance and durability. The test results showed that LMC mix design with latex content of 20 gallons/yd3 (98.8 L/m3) has comparable performance to the typical LMC mix design with 24.5 gallons/yd3 (121 L/m3) in terms of compressive and flexural strengths, permeability, and shrinkage. This indicates that the latex cost could be reduced by about 20% without adverse effect on the major performance characteristics of the LMC overlays.
LMC, Latex, Overlay, Bridge Decks, Concrete Performance
Mohammad A. Alhassan, Suleiman Ashur, and Layla Amaireh (2015).
Impact of Reducing the Latex Content in LMC Bridge Deck Overlays. Journal of Multidisciplinary Engineering Science andTechnology (JMEST).2 (2), 66-69.