Evaluation and Study the Effect of Additives and Other Factors on Tensile Strength of Asphalt Paving Mixtures | ||
| Tikrit Journal of Engineering Sciences | ||
| Article 1, Volume 19, Issue 1, March 2012, Pages 80-96 PDF (0 K) | ||
| Author | ||
| Hanaa Khaleel A. Al-Baiti | ||
| Abstract | ||
| The resistance of asphaltic concrete to cracking is dependent upon its tensile strength and flexibility characteristics. Also the low tensile strength has recognized as a major contributor to other performance problems. The fatigue life of mixtures decreases exponentially with decreasing of tensile strength. This trend is justified by the loss in stiffness and thereby initiating cracks and stripping. The main objective of this research is intended to study the effect of different variables related with the used materials and the external conditions on the tensile strength and predict a model of indirect tensile strength in asphalt concrete paving materials under the local prevailing conditions and investigate the effect of percent of additives of (Polyestrene resins and Hydrated Lime) to enhance the resistance ability of asphalt concrete mixture against distresses. The main affected factors; soaking, asphalt content, compaction, aggregate maximum size and temperature, influence on the indirect tensile strength and presented through a statistics analysis model for tensile strength in asphalt mixture. | ||
| Keywords | ||
| Indirect tensile strength; Additives; Polystyrene resins; Hydrated Lime | ||
|
Statistics Article View: 65 PDF Download: 17 |
||