Thermal Environment-Improving Effect and Water Retentivity of Base Block Produced with Lawned SHIRASU as Roof-top Greening Materia
| Jazyk: | japonština |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | 環境情報科学論文集 = Papers on Environmental Information Science. 31:305-310 |
| Popis: | ［要旨］シラスを固化した緑化基盤を用いた緑化資材を屋上部に約 160㎡試験施工し，緑化資材の有無による建物屋上面と直下スラブ下の天井面での表面温度の比較により，屋上緑化資材による暑熱緩和効果について評価を試みた。また緑化基盤の保水性について人工軽量土壌と比較を行った。表面温度については，緑化資材施工区では非施工区と比較して夏期のピーク時に約 10℃低くなり，緑化基盤下では 13～16℃低くなった。緑化の基盤の保水性について，3日後の容積当たりの含水率と保持力は人工軽量土壌をわずかに上回る結果が得られ，緑化基盤の保水力の持続性が確認できた。 [Abstract] We used a greening base hardened by shirasu to perform a trial execution of about 160 m2 of rooftop greening materials on the rooftop of a building, and then evaluated the effect of this greening base in reducing the thermal environment by comparing the surface temperature on the roof surface with the ceiling under the slab. We also compared the water retentivity of the greening base with that of artificial lightweight soil. At the hottest time on a summer day, the surface temperature on the rooftop with greening materials fell to about 10 °Clower than the non-greening area, and also fell to 13-16 °C lower on the ceiling surface below the greening base. As for the water retentivity of the greening base, the volumetric water content and water retentivity slightly exceeded those of artificial light weight soil three days after adding water, confirming the water-retention ability of the greening base. |
| Databáze: | OpenAIRE |
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