Discuss the different estimating techniques that are used for construction projects by answering the following questions in your post:

• What are the three most common types of estimating techniques, and in what situation is it most appropriate to use each one?
• What else is important to consider when deciding which technique to use?

Construction Engineering question: Produce a environmental management plan

Company has been awarded the contract for a bridge replacement, including 2km approach resurfacing on each side and has placed you and your team in charge. Produce a environmental management plan. Thanks!!

Determine the batch weights needed for all materials for a 10 yd³ batch given the following information. Show all work for partial credit.

Slump = 4 inch maximum

w/cm = 0.45

Cementitious content = 525 lbs/yd³

Slag content = 30% by weight

Fly ash content = 30% by weight

CA (limestone) specific gravity (SSD) = 2.49

FA (sand) specific gravity (SSD) = 2.58

Cement (type I) specific gravity = 3.14

Slag (grade 100) specific gravity = 2.86

Fly ash (class C) specific gravity = 2.59

Air content = 1.0 percent (non-air entrained)

CA absorption = 1.0%

CA moisture content = 2.5%

FA absorption = 1.5%

FA moisture content = 3.3%

Aggregate Volume: 55% CA, 45% FA

Design an overflow spillway profile for a design discharge of 1200 m3/s.

The upstream water surface level is at an elevation of 220 m and the upstream channel floor is at 180 m.

The spillway, having a vertical face, is 40 m long.

How do differences in ax  affect the arrival time of the leading edge of the contaminant plume

What are different types of live loads consider in the design of RCC bridges

What are the other more accurate ways of finding the specific gravity of soil without using pycnometer?

Why is fracking an issue in Texas? Think at a governmental level, especially involving Public Opinion.

Mold Design: In a 2-page report discuss the importance of mold design; specifically, for injection molding processes.

. A dump truck is purchased for $110,000 and has an estimated salvage value of $10,000 at the end of the recovery period. Prepare a depreciation schedule for the dump truck with a recovery period of five years using: a) the straight-line method b) the sum-of-the-years method c) the declining-balance method

DESIGN SECONDARY SEDIMEMTATION TANK TO FIND OUT THE DIAMETER THE DEPTH AND NUMBER OF TANKS FOLLOWING INFORMATION:

MLSS = 2600-2900
DIAMETER = 3-50M
WATER DEPTH = 3-5M
40-50% OF WASTERWATER WILL BE RECIRCULATED TO THE AERATION TANK

As per ASCE 37-02 mention the standard loading of Combined construction loads (personnel, equipment, and materials) based on the level of use for the working surface.

What are the problems arised in simply supported beam bridge(any component of the bridge or steel trusses type) and how to improve the qualities or the problems arised?

An HSS 16x16x1/2 (A = 28.3 in2, twall = 0.465 in, rx = ry = 6.31 in) with Fy =46 ksi is used for an 18 ft long column with simple end supports (K = 1.0)

a) calculate b/t and classify this element (nonslender element or slender element)

b) calculate KL/r

c) calculate Fcr

d) determine Φc Pn and Pn/Ωc with the AISC equation.

Topic: Construction

Let us assume that there is a large high school to be built on the East Coast of Florida near the beach. What type of block would be recommended i.e., compressive, fire rating, architecturally pleasing to the public eye? Remember to factor in cost, permanence, maintenance and safety.