Installation

Besaflex type S induced crack pipes should be installed using a maximum axial separation calculated using the formula (R). Before installation, between the wall reinforcement bars, the pipes need to be cut a bit on the underside, to allow overlay onto the sealing tape embedded at the joint of the slab with the wall.
The cut should be executed perpendicular to the smooth weakening profile niches, with a length allowing embedding of the pipe on a band at a height of 5 cm above the slab face. The induced crack pipe and the external reinforcement arrangement are best trimmed to size directly at the construction site. All works related to the placement of the pipe at the target location are best done before execution of the horizontal wall reinforcement bars and arrangement of the formwork hindering access and the installation specialist's range of motion.
The controlled induced crack pipe should be embedded in a stable manner on the internal day joint band or the sealing sheet steel. At the same time, sealing anchors should be tied to the wall beginning bars using installation grips and tie wire, utilising at least 8 pcs./running metre.
During concreting works, make sure that the height of the laid out concrete mix is equal on both sides of the pipe. After the pipes are concreted up to the desired height, the interiors of the induced crack pipes must also be filled. The pipe placed for rigidity must not be removed.

Step 1. Concreting of the sealing band at the slab-wall intersection Step 2. Cutting of the pipe underside and trimming to size.
Step 3. Embedding pipes on the sealing band and mounting to reinforcement bars.  
Step 4. Embedding edge beams and arranging the formwork. Step 5. Wall concreting.

 


Concreting phases

Step 1. Wall formwork set-up. Step 2. Concreting of the lower part of the entire wall.
Step 3. Concreting the wall to its designated height. Step 4. Concreting of the controlled induced crack pipe interior.