ACPA Concrete Pavement Progress Q1 2020

Concrete Pavement Progress www.acpa.org 20 “We usedGPS-guided technology to prepare the subgrade, but switched to string line to place the concrete,” says Weaver. Because they were staging construction from one side to another with multiple lanes, it is easier to match each segment with string line, he explains. Weaver-Bailey’s efforts resulted in placing the smooth- est concrete pavement ever constructed in Arkansas due to attention to detail, extraordinary effort and an experienced staff dedicated to quality. The attention to subgrade preparation and to the quality of the concrete pavement resulted in a $440,000 bonus to Weaver Bailey for smoothness, says Weaver. “We had an IRI reading of 62.8 inches/mile before grinding and after grinding, reached 59.8 inches/mile,” he says. There were a number of factors contributing to the pave- ment smoothness. “The consistency of the concrete mix and aggregate we obtained from a local quarry contrib- uted to the smoothness of the final pavement,” says Foster. There were other factors that contributed to the quality construction, he adds. “Our concrete plant was located in the middle of the project, which meant a short haul for the concrete and ensured uniformity in the concrete,” Weaver says. “Our equipment was also in good condi- tion and we had very knowledgeable, skilled employees working on the project.” » continued from page 19 U S 6 7 / 1 6 7 A R K A N S A S