Mpumalanga

Torch-On Bitumen Concrete Dam Project — 15 m Diameter

Mpumalanga round concrete dam waterproofed with torch-on bitumen — 15 m diameter, approximately 177 m².

Location
Mpumalanga
Service
Concrete dam waterproofing
Material
Torch-on bitumen membrane
Scope
Torch-on bitumen waterproofing for a round concrete dam with an estimated 15 m diameter and approximately 177 m² surface area.

PROJECT DETAIL

Background

A Mpumalanga client needed reliable waterproofing on a round concrete water-retaining structure where seepage or surface deterioration was reducing usable storage. Concrete dams and reservoirs in the region often require a bonded membrane system rather than loose-laid geomembrane when the substrate is rigid and correctly prepared.

PROJECT DETAIL

Site Conditions

Mpumalanga summer heat, UV exposure and seasonal rainfall patterns affect how torch-on membranes are applied and detailed. The round concrete profile required consistent laps, corner transitions and penetration seals suited to a rigid reservoir shell.

Challenge

Waterproofing a circular concrete dam surface of approximately 177 m² required controlled torch-on application, overlap planning and detailing at the wall-to-floor transitions. Surface preparation — clean, dry and primed — was critical before membrane installation.

Our Approach

Damtech applied a torch-on bitumen waterproofing system to the prepared concrete surfaces, working in planned runs to maintain continuous laps across the round dam profile. Detailing at corners, outlets and penetrations followed torch-on best practice for water-retaining structures.

OUTCOME

Result

Torch-on bitumen waterproofing was completed on the round concrete dam with an estimated 15 m diameter (approximately 177 m² calculated surface area), improving water retention on the structure.

  • Torch-on bitumen waterproofing on a round concrete dam — 15 m diameter, ~177 m².

  • Continuous membrane laps across wall and floor transitions.

  • Detailing completed at corners, outlets and penetrations.

  • Improved water retention on a rigid concrete reservoir structure.

PROJECT GALLERY

Torch-on bitumen waterproofing photos from Damtech's round concrete dam project in Mpumalanga.

EXPLORE SERVICES

Dam linings, waterproofing and water storage services related to this project.

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