Standard weight of 1m steel bars:

Standard weight of 1m steel bars:

 

6mm	0.22kg
8mm	0.39kg
10mm	0.62kg
12mm	0.88kg
16mm	1.58kg
20mm	2.47kg

Standard weight is calculated by: [DxD/162]

D= Diameter of bar

One length of bar = 12meter……….!

1 Band 6mm- 20 nos(length)

1 Band 8mm- 10 nos(length)

1 Band 10mm- 8 nos(length)

1 Band 12mm- 5 nos(length)

1 Band 16mm- 5 nos(length)

1 Band 20mm- 3 nos(length)

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PLINTH AREA

 PLINTH AREA

Plinth area built up covered area of a building measured at floor level at any storey. Plinth area is calculated by taking the external dimension of the building at the floor level excluding plinth off-sets, if any courtyards, open areas, balconies cantilever projections are not included in plinth area. Supported porches (other than cantilevered) are included in the plinth area

The following shall be included in the plinth area.

1.      All floor area of walls at the floor level excluding plinth of sets if any.

2.      Internal Shafts for sanitary installation provided these do not exceed 2 sq m. in area air condition ducts, lifts etc.

3.      The area of parasites and the area of mufti at terrace level.

4.      Area of porch other than cantilevered

The following shall not be included in the plinth area.

1. Area of loft
2. Internal sanitary shafts provided these do not more than 2 sq m. in area.
3. In enclosed balconies
4. Towers, sunshade, domes, etc. projecting above the terrace level, not forming a storey at the terrace level.
5. Architectural bonds, cornices etc.
6. Sunshade, vertical sun breakers of box Louvers projecting out.

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Useful mathamatical formule

Area of  a rectangle	Length X breadth
Area of a triangle	1/2length X breadth
Area of a circle	∏ X radius2
Diameter of a circle	Radius X 2
Circumference of circle	∏ X diameter
Volume of sphere	4/3 ∏ X radius3
Surface of a sphere	4 X ∏2
Volume of a cylinder	∏ X radius2 X height
Curved area of cylinder	2 X ∏ X radius X height
Area of cone	∏ X radius X length
Volume of cone	1/3 ∏ X radius2 x height
∏  = pi,  pi = 3.14159265

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Weighty Units

• Acre: An acre describes an area of  land and comes from the Old English word aecer, meaning a ploughed field. It was the area a team oxen could plough in one day. In the UK in 1824, an acre was set as 4840 square yards.
• Celsius: A temperature scale invented in 1742 by Swedish astronomer Anders Celsius. A Celsius degree is 1/100 of difference between the freezing and boiling points of water (0-100)
• Metre: The metre was introduced in France in June 1799. It was first set as one ten- millionth of the circumference of  the earth. it was later set as the distance between two lines on a metal bar which was kept in serves, France. The distance is now more precise. It is distance light travels in a vacuum in 1/299792458th of a second. A centimeter is 1/100th of a metre. A millimetre is 1/1000th of a metre and a kilo mere is 1000 meters.
• Gram/Kilo gram: Gram comes from the same ancient Greek word that gave us grammar, and means a marked-off division. A kilogram is 1000 grams. Kilo comes from the Greek chili oi, meaning one thousand.
• Foot: Foot originally meant the average length of an adult foot, and has been used since ancient times. Before France invented the metric system, the French foot was based on length of the Emperor Charlemagne's foot.
• Hectare: This is used for measuring land areas and comes from the ancient Greek hekaton, meaning one hundred. One hectare is equivalent to 10000 square meters or 2.4711 acres.
• Hundred weight / ton: A hundred weights is 1/20th of a Ton. A British or long Hundred weight is 112 pounds, and a long ton is 2240 pounds. An American or short ton is 2000 pounds.

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Conversion Table 2

1 Hectare	2.47 Acres
1 Hectare	100 Are
1 Are	2.47 Cents
1 Are	100 sq m
1 Cubic Feet	28.31 Liters
1 Ton	1000 Kg
1 Quintal	100 Kg
1 Nautical Mile	1.85 Km
1 Mile	1.61 Km
1 Ounce	29.57 ML
1 Table Spoon	14.78 ML
1 Tea Spoon	4.92 ML
1 HP	745.69 Watts

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Conversion Table 1

1 Inch	2.54 Cm
1 Feet	12 Inches
1 Feet	30.48 Cm
1 Sqft	0.0929 sqmtr
1 meter	100 Cm
1 meter	39.37 Inch
1 meter	3.28 Feet
1 Sqmtr	10.76 Sqft
1 Finger	3 Cm
1 kol (malayalam)	72 Cm
1 Cent	435.60 Sqft
1 Acre	100 Cent
1 unit	100 Cubic Feet

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