In concreting the foundation of a high-rise building, describe the potential issues that could arise related to the following factors: the types of Portland cement, the Water to Cement (W/C) ratio, the most often used admixtures and the concrete slump test.

Specifically, how did the declaration passed by the Stamp Act Congress and The Declaratory Act passed by Parliament shift the entire focus/debate of discussion during the mid-1760’s? After that, was compromise possible? Why/why not?

2- How did the Nullification Crisis in 1832 (South Carolina) mirror the economic differences of north/south and the issue of states’ rights? How did these same issues bring about a final split of the union in 1861?

what different between triple pane windows and single pane windows and which one is better to use ?

Which of the following statement is correct?

Select one:

a) Adding less water than required in concrete results in higher workability

b) Adding more water than required in concrete results in higher compressive strength

c) Adding more water than required in concrete results in more voids and higher porosity

Design of a prestressed beam in the service limit state

Loads:

Service load p = 40 kN/m

Self weight from adjacent structures g1 = 30 kN/m

Self weight of beam g2 = 7 kN/m

Dimensions:
b = 300 mm, h = 900 mm, d = 800 mm,

L = 8000 mm Ap = 12 tendons a 100 mm2

Material data:
Tendons:

fp0,1k = 1550 N/mm2

fpk = 1700 N/mm2

fpk = 1700 N/mm2

p,max = min{0,8fpk ; 0,9fp0,1k}= 1360 N/mm2

Concrete:

B45, Exposure class XC1, XC2 etc, T = 20 C, RH = 50 %

It is assumed that the prestressing and the self-weight of the beam are applied three days after casting, while the self-weight of adjacent structures and service load are applied after 28 days. 50% of the service load is assumed to be long term load and the relaxation class may be set to 2 (i.e. low relaxation).

define the term 'project risk'. with the aid of relevant examples, discuss in detail the five strategies for dealing with risk in project management.

with the aid of relevant examples, explain in detail the FOUR stages to risk management

The intersection angle of a 6° simple horizontal curve is 65°25', and the PC is located at station (238+14). Determine: the length of the curve (L), the station of the PT, the deflection angle for setting out the first point after the PC, and the chord length for setting out the first point after the PC, the deflection angle for setting out the last point before the PT, and the chord length for setting out the last point before the PT. The length of the curve is:

-The station of the PT:

-The deflection angle for setting out the first point after the PC is:

-The chord length for setting out the first point after the PC is:

-The deflection angle for setting out the last point before the PT is:

-The chord length for setting out the last point before the PT is:

A four-lane undivided multilane highway (two lanes in each direction) has 3.4 m lanes and 1.5 m shoulders. At one point along the highway there is a 4% upgrade that is 1 km long. There are 15 access points along this grade. The peak-hour traffic volume has 2500 passenger cars and 200 trucks and buses (no recreational vehicles), and 720 of these vehicles arrive in the most congested 15-min period. This traffic stream is primarily commuters. The measured free-flow speed is 90 km/h. To improve the level of service, the local transportation agency is considering reducing the number of access points by blocking some driveways and rerouting their traffic. How many of the 15 access points must be blocked to achieve LOS C?

The number of access points that must be blocked is:

A divided multilane highway in a recreational area (fp=0.90) has four lanes (two lanes in each direction) and is on a rolling terrain. The highway has 3 m lanes with a 1.8 m right-side shoulder and a 0.9 m left-side shoulder. The posted speed limit is 80 km/h. Formerly there were 3 access points per km, but recent development has increased the number of access points to 9 access points per km. Before development, the peak-hour factor was 0.90 and the directional hourly volume was 2400 vehicles with 8% large trucks and buses and 5% recreational vehicles. After the development, the peak-hour directional flow is 2800 vehicles with the same vehicle percentages and PHF. What is the level of service before and after the development?

-For the before condition, the free-flow speed is:

-For the before condition, the analysis flow rate is:

-For the before condition, the LOS is:

-For the after condition, the free-flow speed is:

-for the after condition, the analysis flow rate is:

-For the after condition, the LOS is:

Is there a difference between a backfill that is fully saturated and one that is completely covered with the ground water table, is there pore pressure in a fully saturated soil

Can i have a poster of natural disaster ( 330-500 words)? Include referecences

Criteria are as follow

Apply concepts and language related to disasters to a concrete example. 2. Identify the role of disaster policy by using the relevant literature 3. Identify the relevant case study and address policy background and issues Natural Hazards and Disasters 4. Identify policy response pathways to the chosen disaster and key factors that modulated the contrasting scenarios (ie., social, economic, environmental factors etc.) 5. Identify remaining policy issues and challenges by reflecting the role of disaster policy.

Question 5

On a construction site a lot of labor/skill is needed as one start the project but as you scale down on the

works, there is a tendency to reduce on the workforce,

a. Discuss how you factor the downsizing of the workforce when preparing the bill of quantities?

.

b. Discuss the importance of quantity surveying to Civil Engineering?

c. With clear labeled diagram, how do you carry out quantity take off for road, dam and water

project respectively?

A simply supported beam has a width of 200mm and depth of 400mm is 4m long. It carries a uniformly distributed load of 20 kN/m over the whole beam and a point load of 40 kN at the center of the beam. Compute the maximum deflection if the maximum slope produced in the beam is 2× ??-3 radian.