Cold joint in a basement wall exposed to high water table
Cold joint in a basement wall exposed to high water table
(OP)
Hello
When pouring a basement wall of 300mm a problem occured in the batch plant which led to a concrete delay of 5 hours (half of the basement wall was poured). A cold joint was formed as noticed in the picture. The basement wall is resisting a soil pressure as well as a high water table. While the flexural reinforcement is more than enough while checking the shear friction, my main concern is at the time where the construction finishes and the operations of dewatering stopped. This joint will have to be exposed to a permanent water pressure which may let the water infiltrate inside the parking. To be noted that the shoring syatem consists of a temporary diaphragm wall and a reinforced concrete basement wall. The D wall is waterproofed. So the risk of infiltration is limited but would like to hear your opinions.
When pouring a basement wall of 300mm a problem occured in the batch plant which led to a concrete delay of 5 hours (half of the basement wall was poured). A cold joint was formed as noticed in the picture. The basement wall is resisting a soil pressure as well as a high water table. While the flexural reinforcement is more than enough while checking the shear friction, my main concern is at the time where the construction finishes and the operations of dewatering stopped. This joint will have to be exposed to a permanent water pressure which may let the water infiltrate inside the parking. To be noted that the shoring syatem consists of a temporary diaphragm wall and a reinforced concrete basement wall. The D wall is waterproofed. So the risk of infiltration is limited but would like to hear your opinions.






RE: Cold joint in a basement wall exposed to high water table
RE: Cold joint in a basement wall exposed to high water table
RE: Cold joint in a basement wall exposed to high water table
Install bentonite waterproofing panels to the exterior of the concrete.
Since the wall is already in place, some of the preparation steps cannot be performed. Follow the installation instructions as closely as possible:
Bentonite Waterproofing System
www.SlideRuleEra.net
www.VacuumTubeEra.net
RE: Cold joint in a basement wall exposed to high water table
RE: Cold joint in a basement wall exposed to high water table
RE: Cold joint in a basement wall exposed to high water table
BA
RE: Cold joint in a basement wall exposed to high water table