Pavement materials for heat island mitigation : design and by Hui Li

By Hui Li

About ninety percentage of this over the top warmth is because of structures and pavements that take up and shop sunlight warmth (According to the golf green structures Council). the single reference that focuses particularly on pavements, Pavement fabrics for warmth Island Mitigation: layout and administration Strategies explores diversified complex paving fabrics, their houses, and their linked benefits and drawbacks. correct homes of pavement fabrics (e.g. albedo, permeability, thermal conductivity, warmth capability and evaporation fee) are measured in lots of circumstances utilizing newly built tools.

  • Includes experimental tools for trying out varieties of pavements materials
  • Identifies diverse cool pavement ideas with their benefits and linked disadvantages
  • Design and build neighborhood microclimate types to guage and validate diverse cool pavement fabrics in numerous weather regions

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Moreover, among those various cooling strategies, each one has unique cooling effectiveness and associated unique environmental impact (both positive and negative) as well as unique associated costs. Life cycle assessment provides a method to comprehensively compare these cooling strategies, to ensure the largest net benefit and lowest environmental impacts and costs through their entire life cycle, including material production, construction, use phase, and end of use. 4 SUMMARY OF RESEARCH AND KNOWLEDGE GAPS Although some amount of research has been completed or is being conducted by various research institutes and groups around the world, there are still a number of knowledge gaps related to the environmental and engineering performance of cool pavements, as well as economic performance 42 Pavement Materials for Heat Island Mitigation and implementation and policy issues.

It is assumed that reflected radiation is both diffuse and specular in nature, meaning that it is diffuse if the reflected radiation is the same in all angular directions and specular if the surface of reflection is smooth with respect to the wavelength of the incident radiation such that the laws of reflection are satisfied.

1: 1. Increasing tree and vegetative cover; 2. Creating green roofs (aka “rooftop gardens” or “eco-roofs”); 3. Installing cooldmainly reflectivedroofs; 4. Using “cool” pavements; 5. Introducing water bodies into the urban area; Introduction 13 6. ); and 7. Improving urban geometry to improve air flow and enhance the natural ventilation. As mentioned above, pavements are viewed as an important factor that contributes to heat islands. To effectively use cool pavements to mitigate heat islands, the following key issues need to be understood: 1.

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