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Pavements 2026

Pavement Innovation & Sustainability

POSTER RECEPTION (View list of posters here)

Evaluation of Polymer-Modified Cementitious Mortars for Asphalt Pavement Preservation

Tuesday, June 30, 2026
4:45 PM - 6:00 PM East Coast USA Time
Abstract: This study presents the preliminary findings from the development and early-stage performance evaluation of polymer-modified cementitious mortars formulated for thin-layer pavement preservation coating applications. A series of specialized mix designs incorporating various material sources was developed to optimize workability, bond strength to the asphalt substrate, and durability. Laboratory testing included assessments of fundamental material properties for the aggregates and cement, as well as fresh properties of the mix, such as mortar flow and set time. Hardened properties were evaluated through a series of compressive and flexural strength tests on laboratory samples under various mixing procedures and curing conditions. The potential for cracking was investigated using drying shrinkage of mortar beams over an extended period for curing and drying cycles. Preliminary field trials were performed for the mix designs that achieved better performance through laboratory tests. The field evaluation criteria included constructability, skid resistance, and pull-off bond strength at known time intervals after application. Results show reasonable laboratory performance for the selected properties and demonstrate the constructability of materials in the field to achieve the target skid resistance and bonding. Short-term durability indicators from lab conditioning and initial field observations also showed promising results. These findings establish a practical foundation for continued field performance evaluation of thin-layer polymer-modified cementitious coatings as a sustainable pavement preservation method.

Learning Objectives:

Attendees can expect to learn the following from this session:
  • Upon completion, participants will be able to explain the feasibility of polymer-modified cementitious mortars for pavement preservation.
  • Upon completion, participants will be able to evaluate key laboratory tests for assessing mortar performance.
  • Upon completion, participants will be able to interpret laboratory and field results to assess material suitability for pavement applications.