0
Civil Engineering
Civil Engineering is a profession of designing and executing structural works that serve the general public, like houses, buildings, roads, etc. A Civil Engineer is an engineer trained in the design and construction of public works, such as bridges or dams, and other large facilities.
4,921 Questions
We talk of the fuel irradiation as so many Megawatt.days/tonne, and that is a limiting factor on how much energy you will get from a tonne of fuel. However pile irradiation must represent the total Megawatt.days achieved from a particular reactor. In the early days of reactor experiments reactors were often referred to as piles, as they were literally piles of graphite bricks arranged with holes for fuel rods and control rods.
Fine aggregates are the aggregates whose size is less than 4.75 mm.
Example: Sand is used as fine aggregate in the preparation of concrete and cement mortar.
In hot rolling mills the steel bar is passed through a high pressure water quenching system whereby only the peripheral temperature is drastically reduced while the core remains largely unaffected. On leaving the specially designed quenching system, the core heat tempers the peripheral martensite that was formed during quenching. This results in a rebar with a soft core and a uniform hardened tempered martensite periphery - a rebar with high yield strength but with extremely good ductility. Such rebars are ideal for use in high hazard seismic areas.
These bars are produced in bar rolling mills by use of the globally proven and accepted THERMEX Quenching System and Technology of M/s HSE Germany.
In the Indian Region comprising India, Nepal, Bhutan, Bangladesh, Myanmar, Pakistan and Sri Lanka, M/s H&K Rolling Mill Engineers Pvt. Ltd., Mumbai (H&K India) have been given perpetual exclusive rights by HSE Germany to Licence, sell, market, install and commission the unique THERMEX Quenching Systems. As on 1 April 2013, H&K India has received orders for nearly 200 Thermex Systems to be set up in rolling mills - of which about 29 were under excecution. The installed capacity of Thermex QST rebars in India alone is over 14 million tonnes (65% market share). Each Thermex Licensee in Indian Region is subject to strict quarterly audit. Qualified QST engineers visit each Licensee to ensure that the rebar properties are as per the strict standards laid down by HSE Germany and H&K India besides meeting the Standrards of the country.
The Thermex 500 QST rebar meets most global standards and codes and is widely accepted by leading users of rebars because of the uniform properties obtained from the various Thermex Licensees.
In India, the registered trade mark/name THERMEX is owned by H&K India as per permission given by HSE Germany.
Unfortunately, in India, these QST rebars are incorrectly referred to as 'TMT' bars. 'TMT' is an acronym for Thermo-Mechanically Treatment even though no mechanical treatment is involved in the process. This has lead to a number of improper 'TMT' rebars being sold in India with non-uniform tempered martensite periphery at the rebar cross-section - encouraged by this non-uniformity "not being a ground for rejection" as per latest rebar code IS:1786-2008!
For further information you may contact R. K. Markan at handk.india@gmail.com
Workability refers to the ease of which the soil can be physically controlled for the purpose of cultivation. For example, if tilling or digging the soil produces cloddy or plate like clumps, the workability is low. From what I already know, clay soils aren't the best in terms of workability because it clumps together and is difficult to break up, whilst sandy soils usually have a much better workability but tend to be poor for cultivation because of other reasons.
What is compressive strength of m25?
The compressive stress allowed is 25N/mm2. However, the strength of a concrete element depends on the arrangement of loads. For compression, the element might buckle before it reaches its compressive stress.
What mean of 4 legged stirrups in rcc work?
this stirrups can be used in wide beams more than 25 cm 4-legged that mean the number of steel bar vertical are 4 or two stirrups intersection longitudinal
pad footing is the base of a column that transfers the load to the foundation.
What is free carbon in cast iron?
Free carbon in cast iron refers to carbon that exists in its elemental form within the iron matrix. It appears as graphite flakes or nodules, contributing to the material's unique properties, such as high fluidity during casting and improved machinability. This free carbon distinguishes cast iron from other metals.
What does -6 AN inlet size mean?
Well, darling, -6 AN inlet size simply refers to the diameter of the fitting on the end of a hose or tube. The "-6" part corresponds to a specific measurement in inches, so it's basically like saying it's a certain size without actually saying the size. Think of it as a secret code for all the gearheads out there.
How many bridges are in pittsburg pa?
The city of Pittsburgh, PA has 446 bridges. Some of its major bridges are the Fort Pitt Bridge, the Panhandle Bridge, the Smithfield Street Bridge, and the Liberty Bridge.
How long is the lake pontchartrain bridge?
Two causeways, twenty-three miles in length, cross the lake and form the longest bridge in the world.
What common truss types used in bridges?
The type of bridges are:
-truss bridge
-arch bridge (truss arch bridge)
-suspension bridge (suspension truss bridge)
-cantilever bridge
Why was the Empire State Building made of steel?
Strength--Steel is very strong Flexibility--Ability to flex in the wind Cost--Inexpensive and fast to build; prefab construction Concrete, a possible alternative, has less compressive strength than steel. The bottom support structure of the empire state building would consist of a large percentage of solid concrete simply to support the weight of the building.
What is the largest stone bridge in the world?
The largest stone bridge is located on Uzunkopru, Edirne, Turkey. The bridge has been built on the 15th century and 1.392 metres long as well as 6.80 metres wide.
http://img172.imageshack.us/img172/3377/edirneuzunkopruoz8.jpg
Is truss a type of beam bridge?
It's a late nineteenth century Bascule - twin leaf at that. It is a sort of prefabricated Suspension bridge with the bascule machinery in the towers for the two folding leaves.
This is a description of Tower Bridge - not London Bridge.
'
It's also not a suspension bridge. A suspension bridge has a deck suspended from cables, and cannot be opened. The rest of the technical description is correct.
What forces act upon arch bridges?
Tension and compression are the two forces that act upon a bridge.
What is the nickname for the mackinac bridge?
I am unfamiliar with the Machinaw Bridge, so I assume you are talking about the Mackinac bridge? The third largest suspension bridge in the world.
The Mackinac bridge has common nicknames such as: "Big Mac" or "Mighty Mac"
Cantilevers are long projecting beams or girders fixed at only one end, used mainly in bridge construction. They are used a lot for a range of things for example: canopies, balconies, sidewalks outside the trusses of bridges etc...
How deep is the Lane Cove tunnel?
Depth (below sea level): 8m (12m below sea floor)
8 x 23,000t concrete tunnel units, 120m long, 26m wide and 7.5m deep, cast in a specially constructed dry dock at Port Kembla
