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Problem 1: Discuss the importance of curing concrete. Describe how to cure concrete properly, and the impact it will have on strength and durability of concrete.
Problem 2: Discuss the importance of understanding the setting time of a concrete mixture for producing good quality concrete on site.
A 0.4m^3 moist soil sample has the following: Moist mass = 711.2 kg, Dry mass 623.9 kg, Specific gravity of soil solids = 2.68 Estimate: a). Moisture content. b). Moist density.
A 40lb, .8ft diameter, 1ft tall cylindrical tank slides slowly down a ramp with a constant speed of .1ft/s. The uniform-thicknessoil layer on the ramp has a viscosity of .2lb*s/ft^2.
Using a safety factor of 2.00 and neglecting the pile dead weight, find the length of a 1' diameter circular concrete pile required to take a design load of 50 kips in a soil composed of two layers.
Calculate the support reactions in the beam and calculate the sheare force and binding moment - draw the binding moment and shear force digram.
payments of $1000 are to be made at the end of each year for the next 3 years. What is the present worth of the three payments if interest is 12% compounded monthly
A -4% grade and a 0% grade meeting at sta. 24 + 40 and elevation 2421.54 ft are joined by an 800-ft vertical curve. The curve passes under an overpass at sta. 25+00.
A continuous hot rolling mill has eight stands. The dimensions of the starting slab are: thickness = 3.0 in, width = 15.0 in, and length =10 ft.
Determine the maximum possible precipitation at New York City that may be encountered on a 100 mi^2 drainage area over a 96 hr period.
A CAT 834H (rubber tires, high pressure), with an operating weight of 103,849 lbs, is pulled up a road whose slope is +3.0% at a uniform speed. If the average tension in the towing cable is 6,060 lb,
Find parametric equations of the straight line that passes through the point A (1, 5, -3) and is orthogonal to the plane 2x + y - 3 z = 2 and At what point does this line intersect the plane?
A weight W somewhere between 1 to 10 tons is randomly placed along a beam of 10m long span. Let X denote the distance from the point of applicatoin of the load to the nearest support.
Calculate the NOD and ThOD of a waste containing 25 mg/L of ammonia-nitrogen (NH3-N), 50 ing/L of phenol (C6H5OH). and 150 mg/L of naphthalene (C10H8). What is the total theoretical oxygen demand of the waste?
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