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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 Ion Exchange water Softening Softening is usually done using a resin (natural or synthetic long chain chemical with a sodium ion attached). When water containing ha
Formaldehyde and phenol are polymerised to resultant product that was known as Answer: This is known as bakelite.
gabbion retaining wall design
Explain Handheld Inspection tools for Underwater Inspection of Bridge? Handheld tools such as flash lights, rulers, and tape measures for documenting areas; small or large hamm
Q. Vibration in structures - resilient bearings? When railway tunnels are built close to buildings, ground-borne vibration is transmitted to buildingsthrough compression and sh
State the group efficiency of a rectangular group of piles with 4 rows, 3 piles per row, the uniform pile spacing being 3 times the pile diameter. If the individual pile capacity i
The stresses acting on the plane of maximum shearing stress by a given point in sand are as follows: total normal stress = 250 kN/m 2 ; pore-water pressure = 88.5 kN/ m 2 ; shearin
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? 3. Which met
base course material specification?
Question In modeling a nonrigid mat foundation by using elastic springs, have a uniform modulus of subgrade reaction be used along whole base of mat ? Answer A bed of
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