ZipStrip is inserted in the concrete when the concrete is still wet, preferably after screeding and tamping. A straight vertical line of weakness is formed where ZipStrip was inserted. The top portion of the ZipStrip is removed leaving the vertical portion in the concrete . Zip Strip Control Joint 1"x10' "T" Shaped, SPEED-E-JOINTPreformed Contraction JointSPEED-E-JOINT consists of two solid pieces that have been pre-assembled for easy handling and installation. SPEED-.
Contraction joints are formed by saw cutting, by tooling a joint with a grooving tool, or by inserting a plastic strip into the concrete during finishing (zip-strip). Proper timing and depth of cut are essential. If you wait too long, the slab will crack where it wants to rather than where you want it to. Nov 01, · I inspected a new house that had four uneven cracks in the garage floor. The builder said that the cracks were okay because he used zip strips for the expansion joints. It told him that if zip strips joints are done properly you end up with a even groove in the concrete. What has been you guys experience with the zip joints? Are these cracks typical?
HD Supply White Cap is a leading supplier of Expansion & Control Joints products along with a huge inventory of residential, commercial and industrial construction supplies. Close. A.H. Harris joins the HD Supply White Cap family! Midwest Canvas R 6' x 25' Black/Black Concrete Blanket. Prod.# R25F $ SPEED-E-JOINT Zip Strip. Preformed Contraction Joint. SPEED-E-JOINT consists of two solid pieces that have been pre-assembled for easy handling and installation. SPEED-E-JOINT offers an ideal solution to controlling cracks in concrete. It is a rigid preformed contraction joint that produces a straight-line crack on the surface of concrete slabs.
HD Supply White Cap is a leading supplier of Plastic Zip Strip products along with a huge inventory of residential, commercial and industrial construction supplies. Zip-Strip is the fastest, most economical way to form a control joint in a slab. The formation of the control joint only takes a few minutes during the normal finishing process. As the concrete cures, shrinkage cracking will occur at the plane of weakness created by the zip-strip instead of at random locations.
Plastic Joint Materials from W. R. Meadows include plastic expansion and contraction joint material for pavements, traffic decks, sidewalks and other concrete construction. Zip Strips can be used anywhere a separation or control joint is required. Once the concrete is finished to the top of the grade, just zip off the top strip and the project is finished. Zip Strips are available in 1” and /2” and packaged with 50 pieces per box. Each piece is 10 ft. long.