Scope of Work &
Technical Approach
Focused delivery of high-pressure injection solutions for active water ingress in below-grade concrete structures.
Emphasis on defined scope, controlled execution, and long-term performance.
TECHNICAL FOCUS
Delivery of high-pressure injection systems for active water ingress in below-grade concrete structures.
Work is confined to defined leakage pathways to maintain structural integrity and avoid unnecessary scope expansion.
EXECUTION PRINCIPLES
Precision injection, controlled application, and accountability in scope definition.
Repairs are performed with minimal disruption to occupied structures, using methods aligned with the condition and behavior of the concrete assembly.
PROJECT DIFFERENTIATION
Specialization in active leak sealing within structural concrete, distinct from general waterproofing or coating-based approaches.
Experience in below-grade conditions supports accurate identification of ingress pathways and targeted intervention.
Why DBTI
Established Experience (Since 1997):
Below-grade waterproofing and injection repair across occupied residential, commercial, and multi-unit structures.
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Specialized Injection Systems:
Application of high-pressure polyurethane injection for sealing active leakage pathways in structural concrete.
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Targeted Scope Execution:
Repairs confined to identified ingress points—avoiding unnecessary excavation or expansion into unaffected areas.
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Minimal Disruption:
Work performed in active parkade environments with controlled access, staging, and localized intervention.
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Injection Methodology
Application Scope
Targeted high-pressure injection is used to seal active water ingress in below-grade concrete elements, including cracks, cold joints, and localized defects.
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Injection Material
Hydrophilic polyurethane resins are used, expanding upon contact with moisture to achieve full-depth sealing within active leakage pathways.
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Delivery Method
Injection is performed through installed packers at controlled pressures to ensure penetration and continuity of seal.
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Execution Sequence
Work follows identified ingress pathways, typically progressing from the lowest accessible elevation upward to prevent bypass.
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Control Parameters
Packer spacing, injection pressure, and material selection are adjusted based on crack geometry, substrate condition, and observed flow characteristics.
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Scope Control
Execution is confined to defined leakage zones to avoid unnecessary demolition and limit disruption to occupied structures.