A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Road temperature mitigation effect of "road cool," a water-retentive material using blast furnace slag
The recent progress of urbanization has brought a host of urban environmental problems to the fore. The 'heat-island' phenomenon is a typical example. 'Heat island, temperature in urban area is higher than nearby outlying suburbs, have been recognized since the 19th century. But with the abrupt advance of urbanization in recent years, the effect of this phenomenon has been increasing at an accelerated pace. Based on definitions from the United Nations, populations in urban areas now account for about 50 % of the world population overall. We should think of the heat island phenomenon not merely as an urban environmental problem, but as an environmental problem of global scale. The paper presents at JFE Steel developed water-retentive material using blast furnace slag for water-retentive pavement, which is applied for mitigating urban heat-island phenomenon, and commercialized with improved durability of temperature reducing effect. Water absorbing properties are maintained at a high level after the accelerated aging test. Mitigation effect of pavements' temperature of the third summer season is almost the same as that of initial stage. Both simulation and observation indicate that 'Road Cool' pavements with 10 cm thickness keep its surface temperature low for almost a week after a single rainfall. (Copyright JFE Technical Report)
Road temperature mitigation effect of "road cool," a water-retentive material using blast furnace slag
The recent progress of urbanization has brought a host of urban environmental problems to the fore. The 'heat-island' phenomenon is a typical example. 'Heat island, temperature in urban area is higher than nearby outlying suburbs, have been recognized since the 19th century. But with the abrupt advance of urbanization in recent years, the effect of this phenomenon has been increasing at an accelerated pace. Based on definitions from the United Nations, populations in urban areas now account for about 50 % of the world population overall. We should think of the heat island phenomenon not merely as an urban environmental problem, but as an environmental problem of global scale. The paper presents at JFE Steel developed water-retentive material using blast furnace slag for water-retentive pavement, which is applied for mitigating urban heat-island phenomenon, and commercialized with improved durability of temperature reducing effect. Water absorbing properties are maintained at a high level after the accelerated aging test. Mitigation effect of pavements' temperature of the third summer season is almost the same as that of initial stage. Both simulation and observation indicate that 'Road Cool' pavements with 10 cm thickness keep its surface temperature low for almost a week after a single rainfall. (Copyright JFE Technical Report)
Road temperature mitigation effect of "road cool," a water-retentive material using blast furnace slag
Zu Temperaturabsenkungseffekten einer 'Straßenkühlung', ein Wasser zurückhaltendes Material aus Hochofenschlacke
Takahashi, Katsunori (author) / Yabuta, Kazuya (author)
JFE Technical Report ; 58-62
2009
5 Seiten, 8 Bilder, 2 Tabellen, 8 Quellen
Article (Journal)
English
Using blast-furnace slag in road construction
| Tema Archive | 2007
Blast furnace slag for concrete and road construction
| Engineering Index Backfile | 1953
Performance of Granulated Blast Furnace Slag in Road Construction
| British Library Online Contents | 1999
Use of granulated blast-furnace slag in road-building
| Engineering Index Backfile | 1967