Mechanical Characterization of Cement-Treated Cold-in-Place Recycled Asphalt Mixtures: A Comprehensive Evaluation
Abstract
An environmentally friendly option for maintaining asphalt pavements
is cold-in-place recycling (CIR). The decreased strength of the cold-inplace
mixtures is one of the main drawbacks of this method. This type of
combination can have its bearing capacity increased by adding cement
to it. Laboratory research has been done on the impact of cement
content on the mechanical characteristics of cold-in-place recycled
asphalt mixtures. The indirect tensile strength, resilient modulus,
dynamic stiffness, fatigue life have all been determined after different
percentages of cement have been added to recycled asphalt mixes that
have been combined with the ideal ratio of emulsified bitumen and
moisture. The fatigue behaviour of cold-in-place recycled mixes has
historically been studied using dynamic indirect tensile loading due to
the difficulty in fabricating beam specimens. In this study, a technique
for producing fatigue beams from the combination was established. It
is discovered that when cement content rises, so do the mixes’ fatigue
life, dynamic stiffness, indirect tensile strength, resilient modulus.
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