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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.
What would be the best way to evaluate the field performance benefits of subsurface drainage in a flexible pavement? Short term and long term, thick or thin HMA..
Landing Systems: There are two basic types of landing, viz : (a) visual landing, when the weather conditions are favourable, and (b) instrumented landing, when the weat
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A heavy equipment rental company uses a high interest rate of 30% for the rental of a specialty heavy haul dump truck. The net annual profit for this investment is most nearly:
how can we post tension a raft foundation? what design procedure should we follow to post tension raft foundation in order to decrease the concrete and steel volume and increase th
% of water
Explain the Dynamic or Vibration Tests Tests of this type, also known as sonic integrity test, involve sub- jecting the element to a single impulsive blow or cyclic load, and
Effect of rusting on steel reinforcement Corrosion of steel reinforcement inside a concrete structure is undesirable in the subsequent ways: (i) Presence of rust impairs
what is the classification of lintel
Thermocouples are utilized for the measurement of what temperature? Answer: It is utilized for the measurement of temperature.
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