B-1 AGREEMENT System Generated e-Tender No ... - e-Tendering

95 Dy. Executive Engineer
TEST PROCEDURE-E
Chemical Resistance of the coating :
The coated rods ( any diametre ) of length 30 cm. shall be used in this test. The bottom edge of the
coated rods are to be sealed using lacquer. Transparent PVC cylindrical container shall be use. 3M
Cacl2 3M NaOH Saturated Ca(oh)2 and distilled water are prepared as individual test solution and
filled in the separate container up to the half of its height. Then the coated rods are kept partially
immersed in the test solution so that they are in term contact with both the liquid and vapour phase of
the test solution. The test shall be conducted for 45 days. The coating should not blister, soften or
disbond during this period.
TEST PROCEDURE-F
Impact resistance of the coating:
The resistance of a cement polymer reinforcing bar to mechanical damage shall be determined by the
falling weight test. A test apparatus similar to the described in the test method G14 of the ASTM
standard shall be used. Impact shall occur on the low laying areas of the coated bar, that is between
deformations and ridges. The test shall be performed at room temperature. With an impact force of 9
NM, no shattering, cracking or disboundment of the coating shall occur except at the impact area, that
is, area permanently deformed by the tup.
Signature of Contractor No. Of Corrections Executive Engineer