2

2) Effect of spot weld on prestressing bars.

The results of tension tests conducted by FDOT did not indicate any reduction in the yield and ultimate strengths of the bars. The yield and ultimate strength of the welded and un-welded bars are about the same. The average yield strength and ultimate strength of the welded bars are respectively 0.95% higher and 0.19% lower than that of un-welded bars. Basing on the above test results, it can be concluded that the strength of prestrressing bars are not affected by the spot weld. In fact, the test results also showed that the bars exceeded the requirement specified by JIS G 3137 in terms of tensile and yield strengths regardless whether the bars have been spot welded or not.

3) Crack width of more than 0.005 inch during static flexural test on

diameter 350 mm spun pile

Over the years, hundreds of static flexural tests (bending test) have been conducted and the results showed that ICP PHC Piles have met the required cracking moment and ultimate moment as specified in the Japanese and Malaysian Standards.

We strongly believed that the appearance of crack of more than 0.005 inch during the flexural static test was due to the pile already damaged prior to the test. Furthermore, one bending test alone is too small a sample to judge the performance of ICP PHC Piles which have been successfully used around the world.

To summarize, ICP PHC Piles are durable, strong, and economical, and with flexibility in supplying various pile sizes and lengths, therefore, the piles are suitable to be used in all types of environments.

INDUSTRIAL CONCRETE PRODUCTS BHD

2^nd Floor Wisma IJM, Jalan Yong Shook Lin,

P.O Box 191 46720 Petaling Jaya, Selangor, Malaysia

Tel: 603-79558888 Fax: 603-79581111