The objective of this test method is to determine the strength (capacity) of the connection between the geosynthetics and concrete or mortar in the laboratory. Such mechanical connection tests are performed in tension to verify that the design load can be adequately transferred from the geosynthetic to the cured pozzolanic material. This GRI-GS-31 standard method covers two different procedures: procedure A, where the geomembrane is pulled with the concrete anchored; and procedure B, where the concrete is pulled and the geomembrane is fixed. Both procedures determine the load-deformation behavior of the geosynthetic connection system to provide the engineer with data to judge the adequacy of adhesion of the two-component system. Procedure A concrete stationary with embedment liner in motion Reinforced cubes of concrete are cast and then a piece of embedment liner is inserted into the wet mortar. Typically, a 2.3 inch × 3.3 inch (60 mm × 85 mm) specimen with one centrally located stud (one inclusion) of the embedment liner are prepared, as shown in Figure 3. These specimens need to be adhered to a mounting post (Figure 4). This technique can be done in several ways depending on resources. Please note, the mounting needs to be stiff and much stronger than the bond of the embedment liner to the concrete. The specimen is then pushed into the wet concrete and allowed to cure at lab temperature for the allotted 1, 7 or 28 days. This is best done within a humiditycontrolled chamber. This technique is shown in Figure 5. 2a 5a 2b 5b 2c 3 5c 4 FIGURE 2 Photographs of embedment liner applications such as concrete pipe and tank lining FIGURE 3 Photograph of isolated one inclusion and trimming the specimen to size FIGURE 4 Photograph of specimen and mounting post FIGURE 5 Photographs of preparing the anchored concrete specimen GeosyntheticsMagazine.com 41http://www.GeosyntheticsMagazine.com