Civil Engineering Articles Archives - Page 78 of 79

Activated Sludge Kinetic Model

March 15, 2017May 11, 2013 by Johnny

Activated Sludge Kinetic Model Material balance equation for biomass across full system, Sludge recycled, Increased MLVSS-increased efficiency of process,Better flocculation, Improved performance- acclimated biomass, Activated Sludge Process, Merits/ Demerits of Activated Sludge Process,Concept of mean residence time , Minimum Biological Cell Retention Time, ASP Oxygen Requirement, Temperature effects on ASP parameters [google-drive-embed url=”https://drive.google.com/a/civildigital.com/file/d/0B-zZkuNv8PmwOXkxdDA0bUhMSUE/preview?usp=drivesdk” title=”ACTIVATED SLUDGE … Read more

Discharge, Performance and Cancellation of a Contract

March 15, 2017May 11, 2013 by Johnny

Discharge, Performance and Cancellation of a Contract When and how does the contract end? Discharging a Contract Through Performance Contracts Without Termination Dates Termination For “Good Cause” Most contract suits are not brought over questions regarding the formation of a contract; they are brought because of what one party considers to be an improper termination … Read more

Activated Sludge Process And Kinetics Of Activated Sludge Process

March 15, 2017May 11, 2013 by Johnny

Activated Sludge Process And Kinetics Of Activated Sludge Process Activated Sludge Process is the suspended-growth biological treatment process, based on providing intimate contact between the sewage and activated sludge Activated Sludge Process,Oxidation,Synthesis, Endogenous Respiration, Description of Activated sludge processes, Conventional plug flow, Tapered aeration, Step feed aeration, Extended aeration , Growth And Food Utilization, Cell … Read more

Construction Disputes and their Settlement

March 15, 2017May 11, 2013 by Johnny

List of Project, Thesis and Presentation topics on General Civil Engineering

Construction Disputes and their Settlement Development of Disputes,Types of Construction Disputes,Claims of Contractor against Owner/Client,Claim Generating Circumstances,Claims of Owner/Client against Contractor,Owner’s Claim Procedure,Modes of Settlement of Disputes,Direct Negotiations,Settlement Through Arbitration,Advantages of Arbitration over Litigation references oJoy, PK, Handbook of Construction Management, MacMillan India oPatil, BS, Civil Engineering Contracts and Estimates, Universities Press oGahlot, PS and … Read more

Construction Contracts

March 15, 2017May 11, 2013 by Anand Paul

Construction Contracts Building Technology And Management Methods of Execution of Works, Execution of Work through the Contractor, On Piece Work basis, Through Contract Agreement, 1)Lumpsum contract 2)Cost plus a fixed percentage contract 3)Cost plus a fixed fee contract 4)Target contract 5)Item rate contract 6)BOT system 7)Labour contract 8)Joint venture contract 9)Turn-key projects 10)Package contract 11)Percentage … Read more

Self-Healing Concrete

March 24, 2014May 10, 2013 by Anand Paul

ScienceDaily (Apr. 26, 2012) — ‘Self-healing’ concrete is being developed by researchers at Northumbria University which could see cracks in concrete buildings become a thing of the past.

BuckliBall – Buckle In

March 24, 2014April 1, 2012 by Anand Paul

From ScienceDaily

— Motivated by the desire to determine the simplest 3-D structure that could take advantage of mechanical instability to collapse reversibly, a group of engineers at MIT and Harvard University were stymied — until one of them happened across a collapsible, spherical toy that resembled the structures they’d been exploring, but with a complex layout of 26 solid moving elements and 48 rotating hinges.

Akashi Kaikyo Bridge “The world’s longest suspension bridge. “

March 24, 2014March 20, 2012 by Anand Paul

“The world’s longest suspension bridge. “

Vital Statistics:
Location: Kobe and Awaji-shima, Japan
Completion Date: 1998
Cost: $4.3 billion
Length: 12,828 feet
Type: Suspension
Purpose: Roadway
Materials: Steel
Longest Single Span: 6,527 feet
Engineer(s): Honshu-Shikoku Bridge Authority

In 1998, Japanese engineers stretched the limits of bridge engineering with the completion of the Akashi Kaikyo Bridge. Currently the longest spanning suspension bridge in the world, the Akashi Kaiko Bridge stretches 12,828 feet across the Akashi Strait to link the city of Kobe with Awaji-shima Island. It would take four Brooklyn Bridges to span the same distance! The Akashi Kaikyo Bridge isn’t just long — it’s also extremely tall. Its two towers, at 928 feet, soar higher than any other bridge towers in the world.

A Bridge Built to Sway When the Earth Shakes

March 24, 2014March 20, 2012 by Anand Paul

General Civil Engineering Seminar Topics:

SAN FRANCISCO — Venture deep inside the new skyway of the San Francisco-Oakland Bay Bridge, and it becomes clear that the bridge’s engineers have planned for the long term.

Courtesy NYTimes

At intervals inside the elevated roadway’s box girders — which have the closed-in feel of a submarine, if a submarine were made of concrete — are anchor blocks, called deadmen, cast into the structure. They are meant to be used decades from now, perhaps in the next century, when in their old age the concrete girders will start to sag. By running cables from deadman to deadman and tightening them, workers will be able to restore the girders to their original alignment.

The deadmen are one sign that the new eastern span of the Bay Bridge, which includes the skyway and a unique suspension bridge, is meant to last at least 150 years after its expected opening in 2013. (The existing eastern bridge, which is still in use, will then be torn down.)