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PAPER SIZES

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                                    International paper sizes The basis of the international series is a rectangle having an area of one square metre (A0), the sides of which are in the proportion of 1:2. This is the proportion of the side and diagonal of any square. All the A series are of this proportion, enabling them to be doubled or halved and remain in the same proportion, which is useful for photographic enlargement i or reduction. AO is twice A1 which is twice A2 and so on. Where larger sizes than AO are needed the A is preceded by a figure, thus 4A is four times A0. The B series are sizes intermediate between any two A sizes.i This series is used mostly for posters and charts. The C series are envelopes to suit the A sizes. DL or long sizes are obtained by dividing the A and B series into three, tour or eight equal parts parallel to the shorter side so that the proportion of 1 2 i...
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Points to Remember for Civil Site Engineer

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Following are few general points to remember for civil site engineers to make the construction work easier while maintaining quality of construction. o     Lapping is not allowed for the bars having diameters more than 36 mm. o     Chair spacing maximum spacing is 1.00 m (or) 1 No per 1m 2 . o     For dowels rod minimum of 12 mm diameter should be used. o     Chairs minimum of 12 mm diameter bars to be used. o     Longitudinal reinforcement not less than 0.8% and more than 6% of gross C/S. o     Minimum bars for square column is 4 No’s and 6 No’s for circular column. o     Main bars in the slabs shall not be less than 8 mm (HYSD) or 10 mm (Plain bars) and the distributors not less than 8 mm and not more than 1/8 of slab thickness. o     Minimum thickness of slab is 125 mm. o     Dimension tolerance for cubes + 2 mm. o   ...
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