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Friday, 28 September 2018

Prestressing : Materials Management

HT Strand


Anchorages





Wedges


Sheathing


MATERIAL ORDERING 

The followings are to be specified in MR. 

  • Client Specification 
  • I S code references 
  • Type of material 
  • Delivery schedule 
  • Type of packing 

RECEPIT AT SITE 

H.T. Strand : Check the following : 
  • Size of Strand. 
  • Coil No/Heat No. 
  • I S Specifications and class of strand. 
  • Weight/ Length. 
  • Test certificate. 
PT Hardware : Check the following : 
  • Check for the test/mill certificate.
  • IS Code references.
  • Size/ dimensions.
  • Quantity.
  • Visual inspection for any cracks.

REFRENCE STANDARDS &CODES 

HT STRAND : IS : 14268 -1995 ; IS: 6006 -1983 ; ASTM A 146 -1998 

TEST FOR SHEATHING : IRC : 18 -2000 

TESTING FOR PRE-STRESSING SYSTEM : BS 4447 -1973 

GROUTING : IRC : 18 -2000 

PRESSURE GAUGE TESTING : IS: 3624 -1987
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