KemROK™ SPECIFIED AT PCS NITROGEN FLORIDA...
PCS Nitrogen in White Spring, Florida, recently completed a multiphase renovation of an existing concrete trench and receiver pit with CeraTech's chemical resistant KemROK™ cement concrete. The first phase of the project started in September 2014. After completing the project in June 2015, a total of 855 yds3 of KemROK™ concrete was placed.
Divided into three different segments, the project consisted of trench walls, bottom slabs, and pit walls. While concrete slumps were designed for easy placement at a 9-inch slump, 28-day compressive strengths averaged 5,800 psi for the project. While this slump would be considered high in a portland cement concrete, CERATECH™ Cement concretes typically have a 0.18 to 0.25 water to cement (W/C) ratio with 6 to 9-inch slumps.
In addition to the high 28-day strengths, speed of construction was increased with average compressive strengths of 3,700 psi at 3-days and 4,500 psi at 7-days. Early strength gains aided in stripping concrete formwork faster, allowing less plant downtime for the greatest savings to the owner.