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Acid Test:
This test is usually carried out on sand stones to examine the presence of calcium carbonate that weakens the weather resisting quality. In this particular test, a sample of stone weighing approximate 50 to 100 gm is taken and kept in a solution of 1% hydrochloric acid for 7 days. The solution is agitated at intervals. A fine building stone maintains its sharp edges and keeps its surface intact. If edges are broken & powder is formed on the surface, it shows the presence of calcium carbonate. Such type of stones will have poor weather resistance.
Explain the Scaling - underwater inspection of bridges? Scaling is the gradual and continuing loss of the surface mortar and aggregate over an area. This condition is commonly
DOCKS: Types of Docks Docks are artificial enclosures for the reception of ships. Three types of docks are found : (a) Harbour Docks, or Wet Docks, which ar
Define Truss analysis-stability Identify whether a truss is determinate or indeterminate. Identify if the truss is stable or unstable m = number of membe
Q. State different types of chlorination processes available in Railway & market for disinfect ion of water. What type of chlorine used in the above different process. What do you
Define Physical deterioration - underwater inspection of bridges Typical defects include: - Scaling - Cracking - Spalling - Disintegration - Abrasion
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A flow rate of 200 gpm of oil with u=1.5 x 10-3 lb-sec/ft2 and p=1.7 slug/ft3 occurs in a 4-in pipe. Determine the Reynolds number. Classify the flow as laminar or turbulent. What
Q. Show the filter below the revetment? A filter placed between the revetment / protection works at the surface and the soil bed below the revetment / protection works. Main fu
principle of working from whole to part
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