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Can vacuum cleaning recover the infiltration capacity of a clogged porous asphalt?
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.ORCID-id: 0000-0002-2002-1373
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.ORCID-id: 0000-0001-5548-4397
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.ORCID-id: 0000-0003-1725-6478
2012 (engelsk)Inngår i: WSUD 2012: Water Sensitve Urban Design - 21 - 23 February 2012, Melbourne Cricket Ground : building the water sensitve community, Barton: Institution of Engineers, Australia , 2012Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Objective: The main threat for the performance of porous asphalt is clogging leading to decreased infiltration capacity. Thus, we investigated the potential of vacuum cleaning to recover the infiltration capacity of clogged permeable asphalts which have been in use for several decades. The influence of road operation and maintenance measures on the results was discussed.Method: We investigated the hydraulic conductivity (HC) of two roads with porous asphalt in Haparanda and Luleå, Sweden, which had been in use for 28 years and 15 years, respectively. A lack of appropriate maintenance during their operating life had lead to significant clogging and thus malfunction. The roads were vacuum cleaned using a vacuum cleaner/sweeping truck combination. This technology is recommended as a maintenance option for porous asphalt. Before and after the vacuum cleaning, replicate HC measurements were conducted using double-ring infiltrometers.Result: Before vacuum cleaning, mean HC was <0.1mm/min in Haparanda and between 0.4 and 0.8 mm/min in Luleå. After vacuum cleaning, HC increased significantly in Luleå (between 1.1 and 7.1mm/min) while no significant increase was detected in Haparanda. Despite the improvement after vacuum cleaning, HC was still far lower than the initial HC after construction. Reasons for the different results in Haparanda and Luleå were identified; the road winter maintenance was of primary importance.Conclusion: Depending on the extent of clogging, vacuum cleaning has the ability to recover HC of porous asphalt. However, long term behaviour of the HC depends largely on the street maintenance, thus regular appropriate maintenance is preferable.

sted, utgiver, år, opplag, sider
Barton: Institution of Engineers, Australia , 2012.
HSV kategori
Forskningsprogram
VA-teknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-31015Scopus ID: 84862001881Lokal ID: 50d34506-28e5-446f-af01-4639e8157718ISBN: 9780858258952 (digital)OAI: oai:DiVA.org:ltu-31015DiVA, id: diva2:1004244
Konferanse
International Conference on Water Sensitive Urban Design : 21/02/2012 - 23/02/2012
Merknad
Godkänd; 2012; Bibliografisk uppgift: CD-ROM; 20120619 (andbra)Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2018-05-18bibliografisk kontrollert

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