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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.
Define Hydraulic Grade Line (HGL) Graph of the sum of the pressure and potential energies at a position along a pipe or open channel. The difference between the EGL and the HGL
A finish-to-finish activity is best described as: The "from" activity must finish before the "to" activity can finish The "from" activity must finish before the "to" acti
Determine the uses of Prestressed concrete poles Prestressed concrete poles are commonly mass produced and are used in most countries for power transmission, antenna masts etc
how can operate the dumpy level machine
Q. What is Raft Foundation? A raft or mat is combined footing that covers the entire area beneath a structure and supports all the walls and coloumn when the allowable soil pre
what are the necessary data required for foundation recommendation other than SPT value ? why can''t we go for SPT value alone?
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
Question What is key distinction in arranging pumps in series and in parallel? Answer For same pumps with similar functions, if pumps arranged in series, total head
How to do assignment on the basis of azetropic mixture
Introdaction , volume batching , weighat batching , mesaring of water
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