Basic Important knowledge For Civil Engineers
1. When it comes to engineering,
a. Opportunities: Structural engineering is a good option for further studies, but not the only branch available after completing civil engineering.
What are the better options after BE Civil for doing Masters in India?
Follow this for more:
Opportunities for Civil Engineers in India
b. Research: Concrete is not the only available topic for research.
There are thousands of research topics. Just search ASCE journals and let me know if I am wrong.
c. Misconception: Common misconception is that all civil engineers will be site engineers which is wrong. There will be civil engineers in the following functions too.
3. Quantity survey
4. Tendering and bidding
6. Quality Control,
2. When it comes to site execution,
Every civil engineer must know that the supervisors working under them are not their slaves.
We earn respect only when we show some respect to our juniors level engineers or supervisors.
When safety department in-charge says something, civil engineers need to follow to avoid any unwanted circumstances (like accidents or death in the site).
Don’t waste the scrap. Recycle it and reuse it.
Ex: You can even use unwanted cut steel bars for barricading purpose.
3. When it comes to project execution,
Every civil engineer’s ultimate aim should be completing the project within the stipulated time without any delay and within the specified budget.
I found these good enough from Internet.
Minimum thickness of slab is 125 mm.
Water absorption should not be more than 15 %.
Dimension tolerance for cubes + – 2 mm.
Compressive strength of Bricks is 3.5 N /mm2
Maximum Free fall of concrete allowed is 1.50 m.
In soil filling as per IS code for every 100 sqm 3 sample for core cutting test should be taken.
Electrical conduits shall not run in column
Earth work excavation for basement above 3 m should be stepped form.
Any back filling shall be compacted 95% of dry density at the optimum moisture content and in layers not more than 200mm for filling above structure and 300 mm for no structure
A set of cube tests shall be carried out for each 30 cum of concrete / each levels of casting / each batch of cement.
Water cement ratio for different grades of concrete shall not exceed 0.45 for M20 and above and 0.50 For M10 / M15 contractor
For concrete grades M20 and above approved admixture shall be used as per mix design requirements.
Cement shall be stored in dry places on a raised platform about 200mm above floor level and 300mm away from walls. Bags to be stacked not more than 10 bags high in such a manner that it is adequately protected from moisture and contamination.
Samples from fresh concrete shall be taken and at least a set of 6 cubes of 150mm shall be prepared and cured. 3 Cubes each at 7 days and 28 days shall be tested for compressive strength. The test results should be submitted to engineer for approval. If results are unsatisfactory necessary action/rectification/remedial measures has to be exercised.
Water used for both mixing and curing shall be clean and free from injurious amounts of oils, acids, alkalies, salts, sugar and organic materials or other substances that may be deleterious to concrete or steel. The ph shall be generally between 6 and 8.
Cement shall be tested for its setting.
1. The initial setting time shall not be less than 30 minutes.
2. The final setting time shall not be more than 10 hours.
Slump IS 456
Lightly reinforced 25 – 75 mm
Heavily reinforced 75 – 100 mm
Trench fill (insitu & Tremie) 100 – 150 mm (For Tremie no need of vibrator)
Curing Days Required
Super Sulphate cement : 7 days
Ordinary Portland cement OPC : 10 days
Minerals and Admixture added cement : 14 days