author: magid elabyad

Advances in Road Infrastructure and Mobility: Proceedings of the 18th International Road Federation World Meeting & Exhibition, Dubai 2021

... ASTM A500 Grade C box beam. The box beam rails were mounted on the PCB segments with 19-mm diameter by 432-mm long ASTM A307 Grade A bolts without square necks and 19-mm diameter ASTM A563A nuts. A 19-mm diameter ASTM F844 fender washer ...

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