The project engineers and contractors claimed that 40 percent of the space in the voids between the stone – specifically, a foot of No. 5 grade stone above and below a corrugated high-density ...

Advanced Drainage Systems (ADS), Hilliard, Ohio, which is the largest U.S. maker of thermoplastic corrugated pipe, currently is producing HDPE pipe that meets the new AASHTO and ASTM standards. Last ...

HDPE pipes and fittings are extensively used in drainage systems. Key advantages include portability and ease of installation. Moreover, HDPE pipes are versatile and can be utilized for a wide ...