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Effects on evaporation rates from different water-permeable pavement designs

Starke, P ; Göbel, P ; Coldewey, W G

Water science and technology : a journal of the International Association on Water Pollution Research, 2011, Vol.63(11), pp.2619-27 [Tạp chí có phản biện]

ISSN: 0273-1223 ; PMID: 22049757 Version:1

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  • Nhan đề:
    Effects on evaporation rates from different water-permeable pavement designs
  • Tác giả: Starke, P ; Göbel, P ; Coldewey, W G
  • Chủ đề: Construction Materials ; Water
  • Là 1 phần của: Water science and technology : a journal of the International Association on Water Pollution Research, 2011, Vol.63(11), pp.2619-27
  • Mô tả: The urban water balance can be attenuated to the natural by water-permeable pavements (WPPs). Furthermore, WPPs have a 16% higher evaporation rate than impermeable pavements, which can lead to a better urban climate. Evaporation rates from pavements are influenced by the pavement surface and by the deeper layers. By a compared evaporation measurement between different WPP designs, the grain size distribution of the sub-base shows no influence on the evaporation rates in a significant way. On the contrary, a sub-base made of a twin-layer decreases the evaporation by 16% compared to a homogeneous sub-base. By a change in the colour of the paving stone, 19% higher evaporation rates could be achieved. A further comparison shows that the transpiration-effect of the grass in grass pavers increases the evaporation rates more than threefold to pervious concrete pavements. These high evapotranspiration rates can not be achieved with a pervious concrete paving stone. In spite of this, the broad field of application of the pervious concrete paving stone increases the importance in regard to the urban climate.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0273-1223 ; PMID: 22049757 Version:1

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