About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Composite Materials for Sustainable Eco-Friendly Applications
|
Presentation Title |
D-9: Effect of Thermal Conductivity on the Mechanical Behavior of Marginal Construction Waste as a Structural Material for Recycled Pavements |
Author(s) |
Liliana Carolina Hernandez Garcia, Henry A. Colorado |
On-Site Speaker (Planned) |
Liliana Carolina Hernandez Garcia |
Abstract Scope |
The treatment of marginal construction and demolition waste with cementitious materials facilitates is reused as a material for pavement structures that have the capacity to withstand cyclical traffic loads. However, its interaction between the subgrade and the climate brings about effects on the mechanical resistance associated with the gradients of temperature and humidity, such as the alteration in the maturity of the material, where the development of resistance is greater in hot climates than in low temperatures. These results in the development of tensile and compressive stresses due to contraction and thermal expansion can reduce the durability of structures. By using excavation residues from the La Fiscala Mine in Bogotá Colombia, this research identifies the relationship between the thermal conductivity of the material with the compaction, humidity and plasticity. Thus, it is possible to determine the performance of the material as a structure in different environmental conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Sustainability, Composites, Recycling and Secondary Recovery |