Retaining Wall Waterproofing System
External waterproofing system for underground retaining walls, designed to prevent groundwater infiltration and reduce the risk of ground subsidence in urban areas.

A composite waterproofing system integrally bonded to cast-in-place concrete to prevent groundwater infiltration into underground structures.
New Disaster Safety Technology No. 2024-14
Patent No. 10-0930421
A composite waterproofing system integrally bonded to cast-in-place concrete to prevent groundwater infiltration into underground structures.
New Disaster Safety Technology No. 2024-14
Patent No. 10-0930421
Problems with Conventional Basement Waterproofing

Water Leakage After Removal of the Temporary Retaining Wall
Water Leakage After Removal of the Temporary Retaining Wall

Leakage at Joints in Cementitious Waterproofing Layers
Leakage at Joints in Cementitious Waterproofing Layers

Waterproofing Layer Failure Due to Microcracks in the Structure
Waterproofing Layer Failure Due to Microcracks in the Structure

Groundwater Inflow into Underground Sump Pits
Groundwater Inflow into Underground Sump Pits
Disaster-Resilient Waterproofing Technology for Underground Structures with Integral Bonding to Cast-in-Place Concrete


Development of a composite waterproofing material capable of integrating with cast-in-place concrete on all four sides of a structure, including floors, walls, and upper slabs
[Wall. Upper Slab] Pre GTR BW Waterproofing Sheet


[Floor] Pre GTR reverse casting waterproofing sheet


As an adhesive synthetic rubber sheet utilizing a high-adhesion non-curing synthetic rubber waterproofing seal (TurboSeal), it enables reverse casting without substrate preparation, thereby realizing external waterproofing of combined wall sections in underground structures through the integration of the concrete structure and the waterproofing layer.
As an adhesive synthetic rubber sheet utilizing a high-adhesion non-curing synthetic rubber waterproofing seal (TurboSeal), it enables reverse casting without substrate preparation, thereby realizing external waterproofing of combined wall sections in underground structures through the integration of the concrete structure and the waterproofing layer.
Patent No. 10-0930421
STEP 1

Install plywood or drain board
STEP 2

PRE-GTR BW Waterproof Sheet
STEP 3

Water-soluble film attachment



Construction detail drawing

Earth retaining wall

slurry wall

Lining surface

CIP
※ The above construction drawings are subject to change depending on site conditions.