Knowledge
From drilling and injection monitoring to a method selected for your task.
01 · Start here
See where a borehole reaches, where material flows and how to recognise effective injection. Using a crack as an example, learn the principles of access, packer installation and observation that help explain subsequent injection methods.
Start with drilling Drawings · Animations · Step-by-step process
MORE IN THE LIBRARY
Articles grouped by topic — from injection procedures to specific applications and the contractor's workshop.
15 articles in 6 sections
After geometry, move on to material injection: define the repair objective and learn to interpret system response.
02 · KNOWLEDGE
Distinguish leak sealing from load-transferring repair. Resin selection begins with the crack's function and movement.
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03 · KNOWLEDGE
Combine pressure readings, flow, quantity and material communication.
Go to article →From the wall–slab junction to expansion joints, service penetrations and tunnel segment joints.
04 · KNOWLEDGE
First establish the joint position and water path. Then select access, the packer installation zone and points that show filling progress.
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05 · KNOWLEDGE
Plan sections, installation and accessible ends for material injection.
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06 · KNOWLEDGE
The repair must stop water and retain joint movement. Plan the full filling zone, flow monitoring and a flexible finish.
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07 · KNOWLEDGE
Water may travel beside the pipe, sleeve or through surrounding concrete. First identify the correct annulus, then plan access and inspection of the full perimeter.
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08 · KNOWLEDGE
Water may travel along a joint and emerge far from the defect. Divide the repair by treatment zone: in the joint, in the segment or behind the lining.
Go to article →Compare wall saturation with installing a horizontal damp-proof course and applying injection cream.
09 · KNOWLEDGE
Where water uses a network of pores, joints and local voids, one line of holes near the leak may not be enough. Plan a three-dimensional sealing zone inside the wall.
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10 · KNOWLEDGE
The damp-proof course must limit capillary rise along the entire path through the masonry. Its position and connections are as important as the material introduced into the holes.
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11 · KNOWLEDGE
The cream limits capillary rising damp. The correct damp-proof course level, an assessment of the masonry and application from the back of the hole form the basis of effective installation.
Go to article →Explore formation of a barrier behind a structure and work in the ground beneath a foundation and slab.
12 · KNOWLEDGE
The curtain must connect sealed zones on the ground side. Success depends on the injection location, the actual material path and continuity at the repair boundaries.
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13 · KNOWLEDGE
These three tasks may use injection, but their objectives and acceptance criteria differ. Start with the cause of lost support, then select the material and structural monitoring method.
Go to article →See how an anchor and grout interact with the masonry on both sides of a crack.
Return to the application trial and causes of cracking when preparing a repair for a specific structure.
15 · KNOWLEDGE
The trial section must establish whether material reaches the right zone and whether injection can be controlled. Trial results form the basis of the subsequent method.
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16 · KNOWLEDGE
A crack is evidence of a process. Before selecting a resin, establish what opened it, whether it is still moving and what function you expect from the repair.
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EQUIPMENT AND PREPARATION
Check access to the repair zone, packer length and its installation in the substrate.
Diameter, length and installation →Steel packers →Plastic packers →Understand valve opening, system resistance and backflow sealing during injection.
Valves and injection nipples — HAMMPACK ↗ →Packer and borehole — HAMMPACK ↗ →Select a cleaning method for the material and prepare the pump for the next job.
Cleaning and system readiness →TECHNOLOGY SELECTION
Prepare a structural cross-section, repair objective, information about water and anticipated movements.
