Secant forms with geofoam are becoming more popular as time progresses
Secant walls are best described as extensive concrete cylinders that overlap with one another, featuring steel I-beams or rebar cages to form a wall system or foundation without disturbing the area nearby. Geofoam is used for secant walls regardless of the space available, depth and other factors. Structural engineers often call for several unique secant pile configurations, especially if the property boundary is particularly narrow. Secant piles comprised of geofoam are now commonly used in the boundaries of all sorts of different buildings as well as property lines.