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Quality Control in Flexible Pavements:
The quality control needed for Flexible Pavements covers the following tests :
(a) Density and Moisture content of sub-grade.
(b) Strength, shape, stripping tests for aggregates.
(c) Strict control over temperature of bitumen, mix.
(d) Amount of binder sprayed in prime coat, tack coat and surface dressing.
(e) Quantity of aggregates spread in surface dressing.
(f) Density and thickness of bituminous macadam, dense bituminous macadam, bituminous concrete and semi dense bituminous carpet.
(g) Marshall Stability values of BC, DBM and SDBC. (h) Profile and longitudinal levels.
differentiate between Dumpy level:The Wye or Y level:Cooke''s reversible level: Cushing''s level:Tilting level and Automatic level
Loss of Prestress due to Elastic Shortening of Concrete Due to elastic shortening of concrete, tendons are able to reduce their stretched length to the same extent upto which
Q. A pipe or groups of bars be adopted as load carrying element of min-piles? The design of mini-piles someway differs from other traditional pile types. For example the design
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
describe setting out right angle at given point on a chain line and when the point lies outside the chain line
Question If n a number of codes, they boundary ratio of weight of hammer to weight of pile for pile driving. What will be the key reason for this? Answer As a hamm
WHAT IS A DISTOMAT ? WRITE A SHORT NOTE ON IT
IS 883-1970 classifies the structural timber into 3 grades-select grade, grade I and grade II
defination
which kind of pile can increase the bearing capacity, if the water level high in sang soil surface?
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