Alternate pavement types on reactive soils in the Ipswich Council area

Crone, Jeffrey John (2009) Alternate pavement types on reactive soils in the Ipswich Council area. [USQ Project]

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After seeing years of roadwork construction being done the same way and getting the same result of premature failures on the highly reactive subgrades in the Ipswich Council area, this author took the opportunity to research new technologies and innovations in road pavement construction.
The main objectives of this paper were:
· Investigate different pavement types used by Ipswich City Council (ICC).
· Determine how decisions are made regarding the gravel depth or use of lean mix / no fines concretes.
· Select a number of roads which have been constructed and analyse the success or failures of these roads.
· Investigate alternate technologies, innovative solutions and methods not previously used at ICC.
· Make recommendations on the costs and benefits of using the alternates.
Apart from the usual methods investigated like lime and cement stabilisation, the author found several different methods that could have significant impact on the performance of pavements in the Ipswich area:
· Foam bitumen stabilisation.
· Geosynthetics / Geogrids.
· Mass Foam blocks.
· Crushed glass in pavements.
Building road pavements on reactive subsoils is often a costly exercise and very easy to get wrong. New technologies have the ability to offer the same longevity and offer up to 30% savings over the traditional full depth gravel pavements

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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering (Up to 30 Jun 2013)
Date Deposited: 23 Jul 2010 00:49
Last Modified: 23 Jul 2010 01:22
Uncontrolled Keywords: pavements; bitumen; blacksoil clay
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
09 Engineering > 0905 Civil Engineering > 090507 Transport Engineering
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400502 Civil geotechnical engineering
40 ENGINEERING > 4005 Civil engineering > 400512 Transport engineering

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