Wednesday, 21 January 2009

Insulation Puf - First Time in India

Hcc Executes first time the installation of Insulation Panel to maintain the concrete temperature. This has been done first time in India used in Highest altitude Gravity Dam constructed by Hindustan Construction Co. Ltd.
Profile Panel: providing and fixing prefabricated PUF sandwitch profile panel comprising of two sides facing of coloue coated Galvanized steel sheets and sandwitched between them CFC free close cell high density rigid polyurethane foam 40+-2 kg/cu.m having a thermal conductivity value of 0.023w/mk at 10 deg cel temperature. The outer sheet shall be profile steel sheet of 0.5mm TCT (total coated thickness). The profile depth should be 28-30mm at a pitch 195-200mm. The inner sheet shall be in the form of tray, having small notches in between. The outer profile sheet and the inner liner tray shall have 50mm thick average polyurethane foam insulation. The panel should be of required length and width with male and female edges on the sides. The prefabricated panel shall be fixed through the profiles directly to the purlins using seld drilling fastners with neoprene washers mechanically with the help of machine. Load span table for profile panel is as follows:
Thickness span 2.00m 2.50m 3.0m 3.50m
50mm 267/380kg/sq.m 175/249kg/sq.m 125/178kg/sq.m 92/131kg/sq.m

Above are safe loads in kg/sq.m UDL (single/multiple span) with deflection criteria of L/240; for wind loads a factor of 1.33 is applied to above.

For further knowledge plz contact mkshccindia@yahoo.com

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