A concrete column is to be designed at a w/c ratio of 0.40 in an environment where an aggressive F/T persists. A maximum size of aggregate of 19 mm was used. A slump of 30 mm was required to achieve satisfactory workability. Both the coarse and fine aggregate conform to the grading requirements of ASTM C33. The fine aggregate having a fineness modulus of 2.8, and an absorption of 2%, a BSG (SSD) of 2.5, whereas the coarse aggregate have a bulk density of 1450 kg/m3; an absorption of 3% and a BSG (SSD) of 2.50. The moisture content for FA and CA was 4 and 1%, respectively. Compute mixture proportions (in kg/m^3) before and after moisture corrections following ACI procedure.

A soil sample has been submitted to the lab for analysis and found to have a total weight of 52 lbs, a total volume of 0.40 ft3, Weight of solids of 46 lbs and a specific gravity of 2.76. What is the void ratio? Prepare a phase diagram as well

Design a rectangular reinforced concrete beam to resist a total design moment Mu=400 ft.kips (this includes the moment due to beam weight). Architectural considerations require that the width (b) be 18 in. and the overall depth (h) be 26 in. Use f′c=4,000 psi and fy=60,000 psi. Sketch your design.

Design a rectangular reinforced concrete beam for a simple span of 35 ft. Uniform service loads are 1.0 kip/ft dead load (excluding the self-weight of the beam) and 1.2 kips/ft live load. Use f′c=4,000 psi and fy=60,000 psi. Sketch your design.

Rainfall data can be presented using different methods. Discuss these methods (advantages and disadvantages) and conclude what is the best method in your opinion?

In 2019, a single engineer had a gross income of $68,000 and itemized deductions of $13,400. Determine the amount of minimum federal tax he must pay.

In your own words, explain what is meant by OH&S risk and risk assessment.

As an engineer you are responsible to in charge to conduct an experiment for this traffic flow analysis: At 2:00 P.M. a traffic accident closes a road to all traffic. At 2:15 P.M. the road is partially opened with a capacity (car departs) of 1,500 veh/h. Finally, the wreckage is removed, and the road is restored to full capacity (car departs) (3,500 veh/h) at 2:35. From 2:00 to 2:35, car arrives at a constant flow of 2,500 veh/h and then drops to 2,000 veh/h thereafter. Assume D/D/1 queuing to determine

1. Total delay: __________ veh-min

1. Longest vehicle delay under LIFO _________ min

1. Time of queue dissipation: ___________ min

Queue length at 60 min: ___________veh

1. Longest (max) wait of any vehicle (assuming FIFO): ____________min

1. Longest (max) queue length: ____________ veh

1. how a graphical representation of the solution and clearly label the parameters and axis with the appropriate units accordingly.

Design the concrete mix according to the following conditions:

Design Environment
Pavement slab, Bozeman, Montana (cold climate)
Required design strength = 3000 psi

Slab thickness = 12 in

Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples)

Only air entrainer is allowed.
Available materials
Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100lb cement

Coarse aggregate: 2in. nominal maximum size, crushed stone
Bulk oven dry specific gravity = 2.573, absorption = 2.8%
Oven dry rodded density = 120 pcf
Moisture content = 1%
Fine aggregate: Natural sand
Bulk oven dry specific gravity = 2.540, absorption = 3.4%
Moisture content = 4.5%
Fineness modulus = 2.68

The Modified Puls method is used for reservoir routing while the Muskingum method is used for river routing. Discuss the problems that would occur if one tried to use the Modified Puls method for river routing (i.e. why isn’t the Modified Puls method well suited for river routing?).

22. List two important characteristics of the rock formation/rock mass that may control design bearing pressure considerations and rock mass behavior.

A vertical tangent at 4.7% intersects a tangent at -3.9% at a PVI station of 310+11.23 with an elevation of 903.00 ft. Using a vertical curve of length 493 ft., find the elevation of each full station along the curve. What is the station of the turning point on the curve? {If your calculations result in more than 6 stakes on the curve, evaluate only the first 6}.

A vertical tangent at 4.7% intersects a tangent at -3.9% at a PVI station of 310+11.23 with an elevation of 903.00 ft. Using a vertical curve of length 493 ft., find the elevation of each full station along the curve. What is the station of the turning point on the curve? {If your calculations result in more than 6 stakes on the curve, evaluate only the first 6}.

What is the section modulus in the stronger axis of a W14X82

A) 92.2

B) 12.1

C) 6.72

D) 123