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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
Does curing concrete give off gas?
Curing concrete primarily involves maintaining moisture and temperature to ensure proper hydration of the cement. While the curing process itself doesn't directly produce gas, the hydration chemical reactions can release small amounts of gases such as water vapor and carbon dioxide. Additionally, if curing compounds containing solvents are used, they may emit volatile organic compounds (VOCs) during application. Overall, the gas emissions from curing concrete are minimal compared to other processes in construction.
Volumetric strain of a deformed body is defined as the ratio of the change in volume of the body to the deformation to its original volume. If V is the original volum and dV the change in volume occurred due to the deformation, the volumetric strain ev induced is given by ev =dV/V
Consider a uniform rectangular bar of length l, breadth b and depth d as shown in figure. Its volume V is given by,
This means that volumetric strain of a deformed body is the sum of the linear strains in three mutually perpendicular directions.
Pin supports consist of a pin through 2 components which allows rotation about the joint but no translation relative to the pin due to the reactive forces from the pin preventing this movement.
What causes tension compression and shearing?
Tension, compression, and shearing are caused by different types of forces acting on materials. Tension occurs when forces pull apart, stretching the material, while compression happens when forces push inward, squashing it. Shearing results from forces applied parallel to a surface, causing layers of material to slide past one another. These forces can arise from external loads, thermal expansion, or internal stresses within the material.
What are the advantages and disadvantages of recyling?
There are many more advantages of recycling, than disadvantages. Advantages include letting items be reused, helping the planet, and freeing up space in the landfill. A disadvantage might be that it takes a bit more time and thought to recycle.
Which bridge links Anglesey and Wales?
There are two, the Menai (suspension) bridge and the Brittania bridge
What is result of more reinforcements used in structure?
The structure is called a over reinforced concrete or structure. The structure can fail without warning. Discuss why managers she would always t
ry to use positive reinforcement instead of negative reinforcement
Why repeaters are placed over hilly area?
Long Distance Communications these days is handled by Microwave Towers. The good news is that these towers can be placed large distances away from each other so large distances are covered. The bad news is the towers must be in line-of-site of each other or the signal will be lost. Hilly areas are a good example of bad line of site.
How do you find A1 and A2 in trapezoidal footing formula?
In the trapezoidal footing formula, A1 and A2 represent the areas of the top and bottom sections of the trapezoid, respectively. To calculate A1, use the formula ( A1 = b1 \times h ), where ( b1 ) is the width of the top section and ( h ) is the height of the footing. For A2, use ( A2 = b2 \times h ), where ( b2 ) is the width of the bottom section. These areas are essential for determining the overall bearing capacity and load distribution of the footing.
If the soil is so lose that it cant hold the building even with pile foundation. So, piled raft foundation is used which make the building to float like a boat. That obeys Archimedes' principle-it is buoyed up by the weight of the earth displaced in creating the foundation.
the first dam was built in 3000 B>C during the rule of dutch
Calculating young's modulus from tensile strength yield strength and reduction in area?
Young Modulus (E) = Stress / Strain (Within Elastic Limit i.e. Hooke's Law)
Where: Stress = Force / Cross sectional area
Strain = Change in length / original length
% Elongation = increase in gauge length / Original gauge x 100%
To calculate the reduction in area: you need to calculate the original area of the specimen using the original dimensions of specimen then calculate the change in areaof the specimen using change in dimensions after the test. The difference between the two areas will give you the change in area.
I hope this info helps.
The main difference between the old and new code is the method of design-earlier one is based on Working stress method and the present one is based on Limit states Design! Hence comparisons are difficult to make. Since you are conversant with IS 456, it may not be difficult for you to follow. I do not have the new codes here-I saw the Draft- but think that the tables for BM calculation remain the same. You have to use LSM equations for the design instead of WSM. Note that crack control is imp. in such structures. Hence the code prescribes Clauses for the same.
Absolutely! The majority of Civil Engineering courses in the UK require solid passes in maths and ideally a science such as physics. Especially as "engineering" A-levels are not actually very common at all.
If you do not have the requisite A-levels there is also the option of taking a foundation year at university (although this is an extra year that you then have to pay for - so it's better to get the right A-levels at college or 6th Form where it is "free" to start with).
