Showing posts with label Site Engineer. Show all posts
Showing posts with label Site Engineer. Show all posts

Tuesday, August 8, 2023

TYPES OF OBSOLENCES -BUILDING

WHAT IS OBSOLESCENCE:

 "Obsolescence is state where a Buidling is no longer wanted even though good condition."



these are following 4 types of obsolescence affecting real estate. 

1.Functional obsolescence

2.Economic obsolescence

3.Technological obsolescence

4.physical obsolescence


1.Functional obsolescence

" Sometimes Buidling no longer wanted because of its old planning and outdated designing doesn't meet present day requirements". 



Ex;

a) A chawal with common toilets blocks.

b) an old palace may be in good condition in it, but no one like to stay in it, however if these palaces are converted   into hotels, they find good demand 

c) A multi-story office building that doesn't have an elevator

 

2.Economic obsolescence

 "it is decline in property value due to external Factors like zoning changes, recession, Adverse traffic changes. Construction of public nuisance type like jails sewer treatment Plant etc near property".

Ex

a) A residential Building existing on a plot which is situated in commercial Zone area. Thus, HABU is not made.

b) Dilapidation / Deccay | deterioration of building leading to huge repair cost.

c)  if value of properties in particular area falls severely either due to bad neighborhood or due to migration of population to newly developed town centers having better amenities.


3.Technological obsolescence

" It Is decline in property value due to latest products/ technology/workmanship etc".

ex

a) Load Bearing Building | timber, structures are technologically obsoleted and people

prefer to Stay in RCC Building of thin walls.

b) a wooden window is being a replaced by aluminum window.


4.physical obsolescence

" This in the normal wear and tear of building .it gets escalated due to poor /deferred maintenance of building. degree of physical obsolescence depends on factors like manner of usages, environmental aspects like natural forces aspects, accidental aspects".


Sunday, July 26, 2020

50 Practical Knowledge Every Civil Engineer Should Know

50 Practical Knowledge Every Civil Engineer Should Know


50 Practical Knowledge for Civil Engineers, we are going to discuss 50+ Civil engineering Knowledge, which every civil engineer must have to know. In the daily work schedule, we civil engineers are facing many problems from lack of knowing very basic things. We are going to share with you those basic technical things in a bunch.


1.What is the Height of a Single Storey Building?
Ans  3.15 m
2.What is the volume of One bag cement?
Ans  0.347 Cum or 1.25 Cubic feet.
3.What is the Weight of one bag cement?
Ans  50 Kg
4.What is initial Setting time of Cement?
Ans  30 min
5.Final Setting time of Cement for Ordinary Portland Cement is ?
Ans  10 hours
6.What is the minimum nos of bar for a rectangular column?
Ans 4 Nos
7. What is minimum nos of bar for circular column?
Ans  6 Nos
8. What is the size of Concrete cube?
Ans  150 x 150 x 150 mm
9How much layer needs to fill a concrete cube for testing?
Ans    3 layers
10How much layer needs to fill a slump for slump test?
Ans4 Layers
11. What is the Validity of use of Cement?
Ans  It is 3 months from Manufacturing
12. For which test Universal Testing Machine is used?
Ans  Compression test of Concrete and Tensile test of reinforcement.
13.    What is the minimum curing period for concrete?
Ans In normal Weather, it is seven days.
For Dry or Hot weather, it is 10 Days.
14.What is Deflection?
Ans Deflection means temporary displacement
15.What is deformation?
Ans Deformation is a permanent displacement.
16.   What Is the formula for tensile strength of concrete?
Ans 0.7 route fck
17.Which grade of concrete are called Ordinary Concrete?
Ans M10 to M20 concrete are ordinary concrete.
18.Which grade of concrete are called Standard Concrete?
Ans M25 to M35
19.Which grade of concrete are called High Strength Concrete?
Ans M60 to M80
20.How much time required to mix concrete in a mixture machine?
Ans Minimum 2-3 min needs to mix concrete in a mixture machine.
21.      Which dia meter of bar should be used for Chairs?
Ans  Minimum 12 mm dia bar.
22.What is the Minimum Cover for Footing , Column, Slab and Beam?
Ans Minimum cover should be: Footing-50 mm, Column-40 mm,
Slab- 20 mm, Beam-25 mm
23.What is the ratio of most used cement concrete M10, M15, M20, M25?
Ans For M10-(1:3:6), M15-(1:2:4), M20-1:1.5:3, M25-(1:1:2)
The ratio is like Cement: Sand: Aggregates.
24.What is the minimum thickness of slab?
Ans Minimum thickness of slab should be 125 mm
25.How much water absorption is allowed for brick?
Ans Not more than 20 %
26.What is the minimum Diameter for dowels bar?
Ans Minimum 12 mm dia bar.
27.What is the minimum allowable PH value of water?
Ans It is not less than 6.
28.What is the lap length of bars for compression zone?
Ans 24 d
29.What is the lap length of bar for M20 Grade Concrete?
Ans For Column-45d, Beam-60d, Slabs -60d.
30.What is the lap length of bars for Tension zone?
Ans 50d to 60 d, d=dia of bar.
31.     What is Segregation of Concrete? and why its caused?
Ans The separation of sand, cement, aggregates in concrete is called
Separation of Concrete.
Its caused due to improper water cement ratio.
Also caused for poured above 1.5 height.
32.What is the storage procedure of Cement?
Ans 1. Always store cement in a dry place.
2. Provide a gap of 300 mm from walls.
3. Never place cement bag direct in the floor always provide a 200 mm minimum
height from floor.
4. Never put more than 10 nos of bag in a stack.
5. Keep in mind never make a cement storage near chemically effected floor or
area and moisture effective area.
33.Calculations for no of stirrup in a abeam?
Ans Clear Span/ c/c Spacing+1
34.What is TMT?
Ans Thermomechanical Treated Bar.
35.What is TMX?
Ans Thermax Powered Bar.
36.What is SD?
Ans Super Ductile Bars.
37.What is HYSD?
Ans High Yield Strength Deformed Bars.
38.What is CTD?
Ans Cold Twisted Deformed Bar.
39.What is the angle of staircase flight?
Ans It is between 25 degree to 40 degree.
40What is the minimum and maximum height of riser for residential building?
Ans 150 mm to 200 mm
41.     What is the minimum and maximum width of tread for residential building?
Ans 250 mm to 300 mm
42.What is the minimum Hook length for bars?
Ans It is 9D. (D-is dia of bar)
43.How much bricks needs for 1 Cum Brick of 230 mm brick wall /work?
Ans 496 Nos
44.How much bricks need for 115 mm thk brick work?
Ans 56 nos / Sqm
45.What is Bleeding in Concrete?
Ans When water comes out from a just made concrete or fresh concrete then it is
called bleeding of concrete
46.What is the maximum free fall for concrete?
Ans Maximum allowable height of concrete free fall is 1.5 m.
47.What is the Angle of hook in stirrups?
Ans 135 degree.
48.How much bars should be lapped in a bar bending zone?
Ans Not more than 50%
49.What is the volume of one bag cement?
Ans 0.0347 cum or 1.23 CFT
50.Calculations for weight of steel bars?
Ans (D^2 xL)/162









TYPES OF OBSOLENCES -BUILDING

WHAT IS  OBSOLESCENCE:  "Obsolescence is state where a Buidling is no longer wanted even though good condition. " these are follow...