Rutting and Fatigue Properties of Cellulose Fiber-Added Stone Mastic Asphalt Concrete Mixtures

Abstract

This paper investigates dynamic response, rutting resistance, and fatigue behavior of three stone mastic asphalt (SMA) concrete mixtures selected on basis of nominal maximum aggregate size (NMAS): 25 mm, 19 mm, and 12.5 mm using cellulose fiber added as 0.3% of the total weight of aggregate. Superpave gyratory specimens were fabricated and subjected to the dynamic modulus (E∗) and flow tests (flow number and flow time) using an asphalt mixture performance tester. The E∗ test results were employed to develop stress-dependent master curves for each mixture, indicating that the mixture with the NMAS of 25 mm is relatively stiffer than other tested mixtures; this mixture also exhibits excellent strength against rutting failure. In addition, fatigue parameter, which is derived from dynamic response and phase angle, is determined, and results reveal that 12.5 mm NMAS mix has relatively better resistance to fatigue than other selected mixtures. Furthermore, nonlinear regression model specifications were utilized to predict accumulated strains as a function of loading cycles. Also, a flow number model is developed that predicts the rutting behavior of mixtures, and results suggest that model predicted and observed outputs of 25 mm SMA mix are found to be very close. The results of this study help in understanding the performance and behavior of cellulose fiber-added stone mastic asphalt concrete mixtures under varying simulated temperature and stress levels, which can be used in areas where the premature failure of flexible pavements is often observed. The testing protocol employed in this study will also help in evaluating pavement performance using Mechanistic-Empirical Pavement Design Guide.

Performance Evaluation of Stone Matrix Asphalt (SMA) Mixes Using Different Types of Fibers as Additives. (Dept. c)

“…Different types of fibers have been tested and approved to be effective as additives against draindown especially cellulose fibers and mineral fibers (Irfan, Ali, Ahmed, Iqbal, &Wang, 2019).…”

“…SMA is a gap graded hot mix asphalt. It provides a rut resistant surfacing material depending on stone action between coarse aggregate particles (Irfan, Ali, Ahmed, Iqbal, &Wang, 2019).…”

Critical ranking of steam handling unit using integrated cloud model and extended PROMETHEE for maintenance purpose

“…Various researchers applied TOPSIS technique for various problems such as (Sachdeva et al [19], Zhou and Lu [20]) for risk assessment; in a process industry and of dynamic alliance, respectively. Aktas and Kabak [21], Ahmed et al [22] used AHP-TOPSIS to evaluate the location site for solar energy plant, selection of material in the construction industry, respectively. Singh and Singh [23] used fuzzy AHP-TOPSIS to find the ranking of alternative routes in multicriteria decision situation.…”

Sensitivity of the Flow Number to Mix Factors of Hot-Mix Asphalt

“…Ogundipe [8] studied the flow numbers of lime-modified asphalt concrete. Irfan et al [9] investigated the flow numbers of fiber-added stone mastic asphalt concrete mixtures. Leiva-Villacorta et al [10] evaluated the flow numbers for High-modulus asphalt concrete (HMAC) mixtures for use as base course.…”