Presentation of Predictive Models for Two-objective Optimization of Moisture and Fatigue Damages Caused by Deicers in Asphalt Mixtures
- 1 November 2021
- journal article
- research article
- Published by ASTM International in Journal of Testing and Evaluation
- Vol. 49 (6), 4437-4458
- https://doi.org/10.1520/jte20200448
Abstract
The best way to deal with the freezing of the road surfaces is to use deicers, especially in cold areas. The presence of moisture causes various stresses in the pavement and reduces the strength of mixtures. Using anti-stripping agents can decrease the moisture sensitivity of asphalt mixtures. Researchers have evaluated the impact of different deicers on the moisture sensitivity of asphalt mixtures. However, fewer studies have been conducted on the effect of these materials on fatigue failure and thermodynamic parameters of asphalt mixtures. Moreover, fewer studies have been performed to find the exact optimum amount of additives for maximizing the two objectives of tensile strength ratio (TSR) and fatigue life ratio (NFR) concurrently in moisture and fatigue damages. So in this research, the moisture sensitivity and fatigue failure of asphalt mixtures under the influence of different deicers, including calcium magnesium acetate (CMA), potassium acetate (PA), and sodium chloride (NaCl), were investigated using nanohydrated lime (NHL) as an anti-stripping agent. The surface free energy (SFE) of materials and the permeability of asphalt mixtures were examined, and a boiling water test was applied. Finally, the prediction models of multivariate regression (MVR), group method of data handling (GMDH), and genetic programming (GP) were provided to obtain optimum additive percentage with two objectives of TSR and NFR. The results showed that GP had a higher R-value than the 2 other methods such that the R-value of GP for TSR and NFR was 98.8 % and 99.8 %, respectively. The optimization results showed that 1.17 %, 1.34 %, 0.87 %, 1.21 %, and 1.06 % NHL, respectively, were the best optimum values to maximize the TSR and NFR simultaneously in all samples and samples saturated in water, CMA, NaCl, and PA solutions.Keywords
This publication has 52 references indexed in Scilit:
- Combining Data Mining Technique and Group Method of Data Handling (GMDH) Method to Assess Flexible Pavement ConditionsAdvanced Materials Research, 2011
- A robust data mining approach for formulation of geotechnical engineering systemsEngineering Computations, 2011
- Formulation of flow number of asphalt mixes using a hybrid computational methodConstruction and Building Materials, 2011
- Nonlinear Genetic-Based Models for Prediction of Flow Number of Asphalt MixturesJournal of Materials in Civil Engineering, 2011
- Effect of deicing solutions on the tensile strength of micro- or nano-modified asphalt mixtureConstruction and Building Materials, 2011
- New formulation for compressive strength of CFRP confined concrete cylinders using linear genetic programmingMaterials and Structures, 2009
- Modelling damping ratio and shear modulus of sand–mica mixtures using genetic programmingExpert Systems with Applications, 2009
- Deicer Impacts on Pavement Materials: Introduction and Recent DevelopmentsThe Open Civil Engineering Journal, 2009
- A fast and elitist multiobjective genetic algorithm: NSGA-IIIEEE Transactions on Evolutionary Computation, 2002
- The Modern Theory of Contact Angles and the Hydrogen Bond Components of Surface EnergiesPublished by Springer Science and Business Media LLC ,1992