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SUMMARY:Optimisation of Niger Delta Soils as Road Construction Materials -
  Funmi Alayaki\, Cambridge University Engineering Department
DTSTART:20150702T150000Z
DTEND:20150702T154500Z
UID:TALK59650@talks.cam.ac.uk
CONTACT:Anama Lowday
DESCRIPTION:Incessant road failure is a menace in the Niger Delta region a
 nd indeed in Nigeria as a whole. The region is prone to flooding due to th
 e high intensity rainfall and the deltaic layout of rivers and creeks. The
  soils are known to be poor engineering materials especially for road cons
 truction. This study aimed to find a lasting solution to road failures in 
 the Niger Delta region of Nigeria by identifying the inherent causative fa
 ctors and using different locally available stabilising additives and bind
 er to improve the quality of the soils. Pilot scale trial sections were co
 nstructed with the stabilising composites for field performance evaluation
 s. The reduction in the excessive swelling of the soils and improvement in
  the load bearing capacity of the constructed sessions suggested that thes
 e additives and binder compositions can be adopted for use in the region f
 or the improvement of the subgrade soils especially after heavy rains and 
 in waterlogged areas. This research thus revealed that the problematic Nig
 er Delta soils can be optimised for use in road construction. 
LOCATION: Cambridge University Engineering Department\, Board Room
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