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Q. Asphalt mix design - durability vs. stability?
The main aim of asphalt mix design is to achieve a mix with economical blending of aggregates with asphalt to achieve the following:
(i) Workability to facilitate easy placement of bituminous materials without experiencing segregation;
(ii) Sufficient stability so that under traffic loads the pavement won't undergo distortion and displacement
(iii) Durability by having sufficient asphalt
(iv) Sufficient air voids
In asphalt mix design, high durability is generally attained at the expense of low stability. Therefore a balance has to be stricken between durability and stability requirements.
Q. Illustrate Weld Failures in Track? These are failures occurring to defects in welding the joint. These defects are either because of improper composition of thermit metal or
Define the Pressure on a vertical plane Fluid pressure increases linearly with increasing depth. The average pressure on a vertical plane occurs at the average vertical depth.
the two side are 17 cm and 28 cm long. and the lenght of the drawn to the third side is equal to 19.5cm. find tghe distance from an endpoint of this medianto the longest s8ide
Q. Write short notes on Aqua Privy Latrine? There are a sort of latrines also called septic tank latrines. These are constructed over septic tanks & flushing is also provided.
Problems on Roof truss
An engineer deposits an "X" amount every 6 months for 3 years so that she'll have $10,000 at the end of this period. The interest rate is 5% per year which is rebalanced every 6-mo
Classification Based on Durability: Durability tests are conducted by the forest research establishment. They cover test specimen of size 600 × 50 × 50 mm in the ground to hal
Would there be a difference in the result of an underwater rebound hammer versus a typical rebound hammer?
Maintenance of Gravel Roads: The maintenance consists of : filling up of potholes/depressions with fresh gravel and compacting after light sprinkling with water. g
what is the waste utilisation?
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