Injection Systems
Permanently resolving voids, cracks and discontinuities in structural elements from the inside, with resins and grouts selected for the purpose.
Some problems are reached not from the outside but from within.
There is little that can be done from the outside about a void inside a structural element, an unreachable crack or a discontinuity beneath a floor slab. This is where injection steps in: a fluid material is carried under controlled pressure to exactly where the problem is, and hardens there in a form suited to its duty. Correctly applied, injection is the most elegant intervention there is, with no dismantling and no breaking.
Injection’s language is its material: epoxy for structural rejoining, polyurethane for stopping active water, cement-based suspensions for void filling and ground improvement. Which material is applied, at what pressure and in what layout depends on the diagnosis of the problem; our applications begin with that diagnosis and are documented with consumption records.
- Intervention without dismantling: The problem is solved from the inside, without breaking or emptying the structure.
- A material for the purpose: The right choice among epoxy, polyurethane and cement-based systems.
- Controlled pressure: The application runs at a pressure regime that will not harm the element.
- Consumption records: Traceable handover with point-by-point injection records.
Where the unreachable becomes reachable.
Injection approaches different problems with the same principle: carrying the material to where the problem is.
Voids inside concrete
Filling voids caused by casting defects.
Structural cracks
Restoring section integrity with epoxy.
Active water leaks
Cutting off water-bearing cracks and joints from the inside.
Voids beneath slabs
Filling and supporting voids under floor plates.
Cold joints
Correcting discontinuities at casting joints.
Equipment foundations
Precision filling of voids beneath foundations.
Views from the field.
Sample images from applications in different buildings and conditions.
The material advances under the guidance of pressure.
The injection points, called packers, are arranged per the design; the material spreads through the entire void under controlled pressure.
- Packer layoutThe points where the material is fed, positioned according to the design.
- Injection lineThe equipment carrying the material under controlled pressure.
- Filled voidThe volume permanently filled with a material selected for its duty.
- Existing elementThe structure or ground, its condition assessed beforehand.
The right material for the purpose.
The injection material is selected for the type of problem and the expected behavior.
Epoxy injection
Monolithic rejoining of structural cracks.
Polyurethane injection
Cutting off active water leaks from the inside.
Cement-based injection
Economical filling of large voids.
Microfine cement systems
Suspensions penetrating fine discontinuities.
What is expected of an injection.
Reaching the target
The material is carried to exactly where the problem is.
Permanent filling
The void is filled with a material suited to its duty.
Respect for the element
Pressure is kept at a regime that will not harm the structure.
A process without dismantling
An intervention requiring no breaking or emptying.
Diagnosis-driven selection
The material is defined by the problem’s language.
Consumption records
Traceable handover with point-based records.
The scope follows the spread of the problem.
The classification below is indicative only. The final scope is determined by the diagnosis of the problem and the site survey.
Injection, or another system?
Depending on the type of problem, another heading may fit better; let’s define it together.
Technical documents for members
Technical data sheets, safety data sheets and application specifications are available in the membership area open to corporate clients, architects and engineers. Access is free with membership.
Other special systems
Let’s reach your unreachable problem from the inside.
Share the void, crack or leak you have observed; let’s make the diagnosis together and define the right injection system.