Correlation study of asphalt modulus with asphalt immersion time using of lightweight deflectometer laboratory

During The rainy season, the pavement is submerged by water, which affects the performance, durability, and ability to accept the load on the asphalt. Lightweight deflectometer (LWD) developed for evaluation of surface stiffness can be used to estimate the degree of compaction and produce modulus of elasticity. This research using the laboratory version of the LWD to find the correlation between the modulus of elasticity of asphalt on the variation in the Immersion time. From each immersion time, the highest Elasticity modulus value was decreased when it moved from 6,25% because that value is an optimum condition for asphalt samples.