1. You are designing a concrete mix. indicate if you should use an aggregate with high or low absroption or if it doesnt matter and explain your answer. 2. You are designing a asphalt mix. indicate if you should use an aggregate with high or low absroption or if it doesnt matter and explain your answer.

Using the absolute volume method, a colleague started a mix design for a simple concrete foundation in a mild climate and got through Step 5 and has asked you to finish the work. They have already determined the mix needs:
• a w/c ratio of 0.45
• a 2” slump
• 1830 lb of gravel in the oven dry conditions,
• and 3.5% air provided by air entrainer.
The available gravel (coarse aggregate) is subangular with a NMSA = 3⁄4”. It has a specific gravity, Gs = 2.7, with a moisture content of 1.8% and an Absorption of 2.2%. The available sand (fine aggregate) has a specific gravity, Gs =2.45, with a moisture content of 3.8% and an absorption of 2.4%. Gs of cement = 3.15.

For each cubic yard of concrete for this mix, determine:
• the total weight of water, cement, moist sand, and moist gravel required. Don’t worry about the amount of
air entrainer product in fluid ounces.
• Summarize the total mix design (neglecting the required fluid ounces of air entrainer)

Course aggregate:

Fine aggregate:

Cement:

Water:

Methods and possible ways of getting data that can be used to Quantify rail network and model its impact.

What is the environmental impact assessment (EIA) and how can we apply it to two different groups of the project:

1. Water contamination on mining site

2. Building a new cement factory in the GTA area with a total capacity of 100 tons per year

Using the absolute volume method, a colleague started a mix design for a simple concrete foundation in a mild climate and got through Step 5 and has asked you to finish the work. They have already determined the mix needs:
• a w/c ratio of 0.45
• a 2” slump
• 1830 lb of gravel in the oven dry conditions,
• and 3.5% air provided by air entrainer.
The available gravel (coarse aggregate) is subangular with a NMSA = 3⁄4”. It has a specific gravity, Gs = 2.7, with a moisture content of 1.8% and an Absorption of 2.2%. The available sand (fine aggregate) has a specific gravity, Gs =2.45, with a moisture content of 3.8% and an absorption of 2.4%. Gs of cement = 3.15.

For each cubic yard of concrete for this mix, determine:
• the total weight of water, cement, moist sand, and moist gravel required. Don’t worry about the amount of
air entrainer product in fluid ounces.
• Summarize the total mix design (neglecting the required fluid ounces of air entrainer)

Course aggregate:

Fine aggregate:

Cement:

Water:

Please, I need tips on how to model land use and accessibility of rail station.

A flexible pavement consists of surface layer (asphalt concrete), granular base layer and subbase layer. Please determine the thickness of each layer using AASHTO (1993) design method using the Design Chart

• Design ESAL = 2 million
• It takes approximately one week for water to be drained from within the pavement, and the pavement structure will be exposed to moisture levels approaching saturation for 40 percent of the time
• Resilient modulus of subgrade is 9000 lb/inch/inch; Resilient modulus of base is 31,000 lb/inch/inch; Resilient modulus of subbase is 13,500 lb/inch/inch
• Reliability level = 99%
• Standard deviation = 0.5
• Initial serviceability index, pi = 4.5; Terminal serviceability index, pi = 2.5
• a1 = 0.44; a2 = 0.14; a3 = 0.10

An approach to a signalized intersection has a saturation flow rate of 1800 veh/h. At the beginning of an effective red, there are 6 vehicles in queue and vehicles arrive at a rate of 900 veh/h. The signal has a 60-second cycle with 25 seconds of effective red. What is the total vehicle delay after one cycle?

An open cylinder 30 cm in diameter and 80 cm high containing water is rotated about its vertical axis at a speed of 240 rpm. If the Cylinder is brought to rest now, what would be the depth of water in it? If the speed is increased to 420 rpm. How much water will be left in the cylinder in liters? Specific Question If the speed is increased to 420 rpm. How much water will be left in the cylinder in liters?

4. Design Considerations. An airplane wing has a long beam along its span called a spar. Select a material for the spar in a small aircraft. Explain at least 4 considerations for desirable properties and use data from the text to support your choice.

5. Design consideration. Your company needs a large tapered pin to connect two train cars through solid steel loops. Select a material for the pin. Explain at least 4 considerations for desirable properties and use data from the text to support your choice.

Perform the flood routing for a reach of river given x=0.2

and K=2 days. The inflow hydrograph with dt=1 day is given

below. Assume equal inflow and outflow rates on March 16.

A square tied column with f’c=5 ksi and steel with fy=60 ksi sustains an axial load of 225 kips dead load and 375 kips live load and a bending moment of 110 kip-ft dead load and 160 kip-ft live load. Determine the minimum size column and its reinforcement.

1. Explain the following terms in relation to landscape architecture: parterre, Genius loci, tabula rasa, tacit knowing

2. Compare between landscape design as modern professional practice and Landscape design in history. Provide examples.

3. Compare between the French and English landscape design in the history.

Include names of pioneer in the field.

4. Explain the different of built environment and non-built environment in relation to landscape Architecture.

5. Use    your imagination and design the land using only earth. Play with the topography in order to create spaces and corridors. You have a story you want to tell in these spaces. Your words are spaces and paths. Each space or path conveys a message, an image, or a feeling. Through the sequence of spaces, the story will be told. There are no restrictions what so ever to limit your imagination. Only be logical and sensitive. Do the sketch/ sketches in 2 scale. Write any principles you are using in your design related to land form.

The objective of the design problem is to show how you are dealing with the land form; a unique or distinguished design is not required here.

Hello for a laboratory experiment we used strain gauges to measure the internal pressure of a coke can. Our instructor told us one of the sources of error would be not aligning the gauges perfectly. Why would this cause error in the experiment? Is there any other sources of error as well.

You are a project manager. Attached you have a project definition provided by a Project Owner. You have assisted the owner in developing a brief scope based on the project objective. From this limited scope you are to create a design proposal as an architectural(discipline)

1)Why are we doing this project? –Project objective provided by owner

2)What is needed to accomplish the end objective of the project? (plans, specifications, industry standards)

3)What is the cost to complete the project?

4)How much time is required to complete the project design?

5)Who will do the work? (i.e. with personnel in-house, or will it be subcontracted out to another firm)

Your proposal must include the scope of design services offered, the schedule for delivering these design services, and the budget for completing the design services rendered. You may also include basic information about your company including history, qualifications, expertise, and past projects.This information should be a maximum of one page. Please include a graphic such a Gantt(Bar) Chart for a schedule and/or a table for the budget or fee schedule

The Scenario:

Middle School Building Project: The new middle school building includes classrooms, offices and administrative spaces, dining commons with kitchen, and media center. Additional spaces that may be part of the final design include auditorium,gymnasium and athletic fields. Building construction may consist of a multi-story masonry and steel load bearing building with elevated slabs, poured in-place concrete retaining walls and associated underground waterproofing. Exterior finish materials may include brick veneer, aluminum storefront and curtain wall, and aluminum composite wall panels. Interior finish materials may include masonry and drywall partitions, brick veneer, cementitious terrazzo flooring, VCT and carpet tile, and lay-in acoustical tile ceiling. Roofing systems include TPO single ply roof system or standing seam metal roofing system. Building systems include forced air mechanical systems, plumbing, fire protection, electrical, communications, security and data systems. Site construction consists of work on approximately 20 acres, including erosion and sediment control measures, clearing and grubbing, storm water piping and retention ponds, building pad preparation, utilities including a forced main sanitary system, temporary and permanent parking areas and driveways, bus loop, concrete walks, areas of concrete, fencing and other miscellaneous site work.