Use of coral-derived aggregates for construction of low-volume roads

Bullen, Frank (2003) Use of coral-derived aggregates for construction of low-volume roads. Transportation Research Record: Journal of the Transportation Research Board , 1819. pp. 134-142. ISSN 0361-1981


Many tropical island and coastal regions suffer from a paucity of recognized engineering aggregates. In these regions river gravel and old uplifted coral reef formations are often the only economically viable materials. Typically, the coral-derived material most widely available for use is termed coronous material, a land-based uplifted coral reef that may contain an abundance of plastic fines and that is usually easily excavated without the use of explosives. The shortage of traditional aggregates and the availability of the upraised reefs have promoted the study of the use of coral-derived aggregate as an alternative aggregate in pavement engineering works. Although coral-derived materials have been successfully used for pavement construction in the past, traditional engineering tests have generally indicated that it is a substandard product,
and material from most pits does not pass typical specification tests. The material properties and the historical use of coronous materials in road construction are summarized, and a draft guide for the use of coronous
materials in the road base and subbase for both sealed and unsealed road pavements is provided

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author's version not held. Paper No. LVR8-1115
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 15 Apr 2010 09:15
Last Modified: 02 Oct 2013 04:05
Uncontrolled Keywords: coral aggregates; road building materials; coronous material
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
04 Earth Sciences > 0499 Other Earth Sciences > 049999 Earth Sciences not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
Identification Number or DOI: 10.3141/1819b-17

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