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Q. Purpose of using capping layers in pavement construction?
When California Bearing Ratio of subgrade is checked to be below a specific percentage (for example 5%), a capping layer is generally provided to decrease the effect of weak subgrade on the structural performance of the road. It also provides a working platform for sub-base to be created on top in wet weather condition since the compaction ofwet subgrade is difficult on site. Effect of interruption by wet weather can be decreased significantly and progress of construction works wouldn't be hindered. Most significantly, cost of cappinglayers is low since the material can be readily attained locally.
Q. What are the causes of settlement? The various causes of settlement are: 1) increasing load on the surrounding soil deposit, 2) excavation, 3) lowering of water tab
Define Structural connection loosening - Deterioration in Steel? Structural connections joined together by rivets or bolts have a tendency to work loose over an extended period
Roads in Deserts: Problems Encountered The western portion of Rajasthan is part of the Thar desert, where strong winds below the fine desert sand particles leading to
distribution of shear stress in triangular section
Q. What is Corrosion inhibitors? Corrosion inhibitors are chemical substances that when added in small concentrations, stop or decrease the corrosion or reaction of metalwith t
Concrete Mix Design: Concrete mix design is done in a laboratory to achieve the desired strength and workability. The mix design is done to achieve strength slightly higher t
A building was to be constructed on a clay stratum. Preliminary analysis showed a settlement of 60 mm in 6 years and an ultimate settlement of 250 mm. The average enhance of pressu
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journals for wet mix mecadam
long span bridge or continuous bridge which is more preferable and why ??? what is the major problem in continuous bridge and what would be its effect if there is any differential
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