DURABILITY OF JOINTED REINFORCED CONCRETE PAVEMENTS UNDER SEVER EXPOSURE CONDITIONS: A CASE STUDY IN IRAN
Author(s): Arabali, P. and Shekarchi, M.
Paper category: Conference
Book title: XIII International Conference on Durability of Building Materials and Components - XIII DBMC
Editor(s): Marco Quattrone, Vanderley M. John
Print ISBN: none
Publication year: 2015
Total Pages: 8
Abstract: Durability and service life of concrete pavements are endangered by several factors. These infrastructures may be subjected to deteriorative events such as freezing and thawing cycles, cracking due to shrinkage, curling, temperature gradient, and moisture gradient. In this paper, concrete mix design and behavior of a Jointed Reinforced Concrete Pavement has been investigated which is located in a region under severe exposure conditions. These conditions are due to the freezing and thawing cycles in the region, and application of deicing chemicals on the pavements which is prevalent in cold weather conditions in Iran. This pavement contains dowel bars in transverse joints. Low water to cementitious materials ratio, high amounts of air entraining agents, and silica fume have been used in concrete mix designs. 54 samples were made for testing and evaluating the mix designs in an experimental program consisted of freezing and thawing cycles, shrinkage, flexural strength, and compressive strength tests. According to ASTM C672, experimental results showed that almost no sign of scaling was observed in samples with high air contents with or without silica fume. A concrete mixture has been proposed, which meets the durability requirements of concrete pavements in the region.
Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00