SPECIFICATIONS FOR RAIL-STEEL REINFORCEMENT BARS. 



609 



V. FINISH. 



14. Finish. The finished bars shall be free from injurious defects and shall have a workman- 

 like ImNi. 



VI. INSPECTION AND REJECTION. 



15. Inspection. The inspector representing the purchaser shall have free entry, at all times 

 wliiK- work on the contract of the purchaser is being performed, to all parts of the manufacturer's 

 works which concern the manufacture of the bars ordered. The manufacturer shall afford the 

 in-pn tor, free of cost, all reasonable facilities to satisfy him that the bars are being furnished in 

 accord, UK i- with tlu.se specifications. All tests (except check analyses) and inspection shall be 

 made at the place of manufacture prior to shipment, unless otherwise specified, and shall be so 

 conducted as not to interfere unnecessarily with the operation of the works. 



16. Rejection, (a) Unless otherwise specified, any rejection based on tests made in accord- 

 aim- with Section 7 shall be reported within five working days from the receipt of samples. 



(6) Bars which show injurious defects subsequent to their acceptance at the manufacturer's 

 works will be rejected, and the manufacturer shall be notified. 



17. Rehearing. Samples tested in accordance with Section 7, which represent rejected bars, 

 shall be preserved for two weeks from the date of the test report. In case of dissatisfaction with 

 the results of the tests, the manufacturer may make claim for a rehearing within that time. 



STANDARD SPECIFICATIONS FOR RAIL-STEEL REINFORCEMENT BARS 



OF THE 



AMERICAN SOCIETY FOR TESTING MATERIALS. 

 ADOPTED AUGUST 25, 1913. 



1 . Classes. These specifications cover three classes of rail-steel concrete reinforcement bars, 

 namely: plain, deformed, and hot-twisted. 



I. MANUFACTURE. 



2. Process. The bars shall be rolled from standard section Tee rails. 



3. Hot-twisted Bars. Hot-twisted bars shall have one complete twist in a length not over 

 12 times the thickness of the bar. 



II. PHYSICAL PROPERTIES AND TESTS. 



4. Tension Tests, (a) The bars shall conform to the following minimum requirements as to 

 tensile properties: 



(6) The yield point shall be determined by the drop of the beam of the testing machine. 



5. Modifications in Elongation, (a) For bars over f in. in thickness or diameter, a deduction 

 of i from the percentages of elongation specified in Section 4 (c) shall be made for each increase 

 of J in. in thickness or diameter above f in. 



(ft) For bars under ^ in. in thickness or diameter, a deduction of I from the percentages of 

 elongation specified in Section 4 (a) shall be made for each decrease of fa in. in thickness or di- 

 ameter below -fg in. 



6. Bend Tests. The test specimen shall bend cold around a pin without cracking on the 

 outside of the bent portion, as follows: 



1 See Section 5. 



