Page 51 - Construction Waterproofing Handbook

BELOW-GRADE WATERPROOFING 2.15

FIGURE 2.17 Use of PVC waterstop in expansion joint.
(Courtesy of AntiHydro)

FIGURE 2.18 Placement and securing of waterstops at
construction joints. (Courtesy of J.P. Specialties, Inc.)

In striving to make waterstops idiot-proof, manufacturers have created several alterna-
tives to the PVC standard including many hydrophilic derivatives. These systems, along
with the bentonite and asphalt plastic, are used mainly for control joints and not provided
for expansion joints. These systems are simple to install, and do not have to be installed in
both sections of concrete placements. The material is adhered directly to the edge of the
first concrete placement in preparation for the second placement of concrete. Note this
detailing in Fig. 2.20 and in the photograph of the installed product, Fig. 2.21.