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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. Axial flow pumps for large flows and low heads? It is well known that axial flow pumps are the most suitable for providing large flows and low heads. Reason behind this is c
what are the basic two division of surveying
Define the Cracking - underwater inspection of bridge? A crack is a linear fracture in concrete. There can be several types of cracks starting from surface and going into the c
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PART - A 1. Can you enumerate the benefits of individual wall method of estimation? 2. Estimate the single room of size 3m x 4m x height 3m using individual wall method?
describe how quality control is maintained in a rolled fill dam
to find height difference between two or more points in different conditions
Distance ABC was measured with a 30m. Chain tested and found to be correct in the beginning of the work .after measuring AB=1.2 km chain was found to be 10 cm. To long chaining was
designofboredunderreamedpiles
The thiclcness of the normally consolidated soft clay layer is 6 m. The natural water content is 31 percent. The specific gravity of the soil being 2.68 with a liquid limit of 4
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