Laboratory Evaluation on Cold Mix Asphalt Materials for Road Rehabilitation Work

Abstract

An increase in road accidents rate as a result of insufficient maintenance operations of road pavement and environmental issues has becoming a major concern in Malaysia's asphalt industry. Pavement failure such as potholes, shear failure cracking and alligator cracking require immediate attention to overcome for safety and comfort of road users. Cold mix asphalt is commonly used for temporary patching in road rehabilitation works as it is efficient, time saving, and economical for pavement maintenance. Thus, this study focused on the assessment of the performance of three commercially available cold mix asphalt products in Malaysia. The patching materials chosen were A Cold Premix, Viking Easlylay Cold Tarmix and Advanced Patchmix. The laboratory tests included to evaluate the properties using Sieve Analysis, Specific Gravity and Water Absorption along with the performance evaluation using Marshall Stability and Flow Test accordance to ASTM D1559. Viking Easlylay Cold Tarmix ranked first as the highest score of conformity with the specification requirements based on the ranking performance criteria of three different cold mix patching materials. The result obtained for average stability from specimens of Viking Easylay Cold Tarmix is 13.871 kN, A Cold Premix is 11.334 kN, and Advanced Patchmix is 10.843kN. Therefore, it is recommended that Viking Easlylay Cold Tarmix are the most ideal cold mix materials to be used in patching maintenance work.