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During a falling-head permeability test, the head fell from 49 to 28 cm in 4.7 min. The specimen was 8 cm in diameter and had a length of 85 mm. The area of the standpipe was 0.45 cm^2. Compute the coefficient of permeability of the soil in cm/s, m/s, and ft/d. What was the probable classification of the soil tested?
the block is fitted between the fixed supports. if the glued joint can resist a maximum shear stress of T(allow)=2ksi, determine the temperature rise that will cause the joint to fail. Take E= 10(10^3)ksi, v=0.2
fy=50000psi, f'c=3000 span of l=28 ft, dead load not including beam weight = 3 k/ft, live load=3 k/ft, p*=0.5pb, concrete weights=150 lb/ft cubed, use h=d+2.5 inch, assume beam weight =10kN/m and phi=0.90
Determine D10, D30, and D60Effective grain size c. Cu d. Cz Sieve Number Opening (mm) Mass of soil retained (g) No. 4 4.750 28 No. 10 2.000 42 No. 20 0.850 48 No. 40 0.425 128 No. 60 0.250 221 No. 100 0.150 86 No. 200 0.075 40 Pan 24
What is the corresponding horizontal distance between the points - The slop distance 156.777 from one poin to another at rate of+1.5%
A 0.25 in diameter copper rod BC is securely attached between two identical 1 in diameter steel rods (AB and CD). Find the load P if the total elongation of the system is measured to be 0.0312 in. Esteel= 29,000ksi, Ecopper=17,000ksi.
You are to assume that seawater at 77oF will be used in the tank and the curved portion forms a quarter of a circle. The tank is open to the atmosphere. The overall height, h2, is 20ft deep. The radius of the curve, R, is 5ft. The width of the..
Rod AB is bent into the shape of a circular arc and is lodged between two pegs D and E. It supports a load P at end B. Neglecting friction and the weight of the rod, determine the distance c corresponding to equilibrium when a = 43mm and R = 143mm..
Two tests are taken from the compacted mixture and checked for density. Core 1 had a density of 150 pcf and an air void content of 6.5 %. Core 2 had a density of 151 pcf. What is the air void content of core 2
A reservoir discharges into a long trapezoidal channel with a bottom width of 20 feet, 3 to 1 side slopes, a bottom slope 0.001 and a roughness coefficient of 0.025 the reservoir surface is 10 feet above the invert at the channel entrance
The average P concentration in the runoff if the overall (agricultural and residential areas) runoff coefficient = 0.4, 40% of P is removed from the agricultural area by rainfall, and 90% of P is removed from the residential area by rainfall.
Two links AB and B, each 25 in. long are connected at B and guided by hydraulic cylinders attached at A and D. Knowing that D is stationary and that the velocity of A is 30 in./s to the ight
could you please help me to figure out what the meaning of steady state in the pavement management system preservation and rehabilitation.
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