Long-term Evaluation of Stripping and Moisture Damage in Asphalt Pavements Treated with Lime and Antistripping Agents


Book Description

This report summarizes the results of a long-term field evaluation of the effectiveness of lime and various antistripping agents. This research study was a continuation of the research carried out between 1986 and 1991 (documented in CTR Research Reports 441-1 and 441-2F). Core samples were obtained from the field test sections and tested in the laboratory based on Test Methods Tex-531-C and AASHTO T283. Test results did not indicate any consistent pattern with regard to effectiveness of certain antistripping additives versus others. The field test sections, treated with antistripping agents and built in eight districts of the Texas Department of Transportation, were monitored for signs of distress during the course of the research study.




Evaluation of Stripping and Moisture Damage in Asphalt Pavements Treated with Lime and Antistripping Agents


Book Description

This report summarizes the results of determining the moisture susceptibility by the primary test methods: (a) Original Lottman Method. (b) Modified Lottman Method (Tex-531-C); (c) Tunniclif f-Root Method; and (d) Boiling Test (Tex-530-C). Comparisons were made between the laboratory mixtures, plant mixtures, and cores obtained from the field test sections to determine the effectiveness of the various antistripping additives and to evaluate the various methods for measuring that effectiveness.







Field Evaluation of Stripping and Moisture Damage in Asphalt Pavements Treated with Lime and Antistripping Agents


Book Description

This report summarized the results of field evaluation of the effectiveness of lime and various antistripping additives using the following methods: (a) Modified Lottman Method (Tex-531-C) and (b) Boiling Test (Tex-530-C). Core samples were obtained from the field test sections up to 48 months after construction. Field data to date show very little evidence of distress which is directly related to moisture damage or stripping. This was anticipated due to the slow rate of moisture ingress under adequate construction compaction.




Testing and Characterization of Asphalt Materials and Pavement Structures


Book Description

This book presents new studies dealing with the attempts made by the scientists and practitioners to address contemporary issues in pavement engineering such as aging and modification of asphalt binders, performance evaluation of warm mix asphalt, and mechanical-based pavement structure analysis, etc.. Asphalt binder and mixture have been widely used to construct flexible pavements. Mechanical and Chemical characterizations of asphalt materials and integration of these properties into pavement structures and distresses analysis are of great importance to design a sustainable flexible pavement. This book includes discusses and new results dealing with these issues. Papers were selected from the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China.




Improved Conditioning and Testing Procedures for HMA Moisture Susceptibility


Book Description

Explores whether combining the environmental conditioning system with the simple performance test would provide a superior procedure for determining the moisture susceptibility of hot-mix asphalt (HMA).







Public Roads


Book Description