F L X Building Contracting LLC (FLX Contracting) — Structural Strengthening & Concrete Repair UAE
052 645 5004
//Injection Work
Leak Sealing & Grouting/High-Pressure Micro-Grouting

Injection Work

Immediate stoppage of high-pressure water ingress and structural monolithic healing using advanced mechanical packers and dual-component polymers.

WhatsApp Engineer (052 645 5004)
15 – 45 Seconds
Reaction Speed
Up to 250 Bar
Water Pressure
PU, Epoxy & Acrylate
Resin Types
Up to 30x Foam
Expansion Ratio

Specialized Solutions for UAE Infrastructure

Sub-structure water leakage poses an immediate hazard to structural safety across the UAE due to high coastal groundwater tables, aggressive sulfate soils, and hydraulic pressure. F L X Building Contracting LLC provides advanced concrete injection and specialized grouting services engineered to arrest active water ingress and restore monolithic concrete strength.

Our certified technicians utilize high-pressure injection pumps capable of delivering polyurethanes, epoxies, and acrylic gels deep into hairline fissures, honeycombed construction joints, and leaking tie-rod holes. Whether sealing secant pile shoring walls, raft foundations, or underground utility tunnels, we stop leaks permanently.

For dry structural cracks, our low-viscosity structural epoxy injection restores 100% of original tensile and shear load-carrying capacity across cracked slabs and columns without requiring costly structural rebuilds.

F L X Building Contracting LLC (FLX Contracting) — Injection Work field operations in Dubai & UAE
On-Site Field Operations
FLX Engineering Squad · UAE Operations
Verified Site Image

Core Solutions & Methodologies

1

Active Water Leakage Injection (PU Foam)

Injection of rapid-reacting hydrophobic and hydrophilic polyurethane resins that react instantly with water to expand into a dense, flexible rubber seal.

Stops running water and gushing leaks within seconds under high pressure.
2

Structural Epoxy Resin Crack Injection

Low-viscosity structural epoxy injection conforming to ASTM C881, engineered to penetrate fissures down to 0.05mm and fuse fractured concrete monolithically.

Restores original shear and compressive strength across structural elements.
3

Secant & Diaphragm Shoring Wall Sealing

Specialized sealing of vertical joints between interlocking secant piles and diaphragm guide walls to prevent catastrophic basement excavation blowouts.

Enables safe deep excavation dry conditions in high water table zones.
4

Retaining Walls & Raft Foundation Ingress Sealing

Curtain grouting and targeted packer injection along kicker joints, construction cold joints, and raft slab penetrations below the water table.

Permanent sealing resisting continuous hydrostatic groundwater heads.
5

Swimming Pools & Underground Water Tanks

Potable water certified (NSF 61 / WRAS) flexible acrylic and polyurethane resin injection sealing leaking expansion joints and concrete shrinkage fissures.

Guaranteed non-toxic sealing suitable for drinking water reservoirs.
6

Soil Stabilization & Permeation Grouting

Injecting low-viscosity chemical micro-cements and silicates into loose sands beneath settled foundations and slabs to consolidate soil bearing capacity.

Arrests structural subsidence and fills subterranean voids.

5-Phase Engineering Quality Process

01
Phase 1: Inspection
Crack Mapping & Inflow Hydrostatic Evaluation

Surface cleaning, identifying active hydrostatic leaks vs dry cracks, mapping fissure depth, and determining optimal packer spacing and drilling angles.

02
Phase 2: Drilling
Staggered 45° Packer Borehole Drilling

Drilling staggered holes at 45 degrees to intersect the internal crack midway through the concrete cross-section, followed by high-pressure air flushing.

03
Phase 3: Insertion
Mechanical High-Pressure Packer Installation

Installing steel/brass mechanical packers with neoprene rubber expansion sleeves tightened to withstand up to 250 bars of injection pumping pressure.

04
Phase 4: Grouting
Polymer Injection Until Complete Refusal

Systematic bottom-up injection using high-pressure pneumatic/electric dual-piston pumps until pure resin exudes from adjacent ports, confirming complete fill.

05
Phase 5: Finishing
Packer De-Mounting & Waterproof Mortar Capping

Removing packer heads after complete resin polymerization, grinding surface smooth, and sealing boreholes with non-shrink crystalline waterproof plug mortar.

Site Execution & Methodology

On-Site Field Operations Gallery

F L X Building Contracting LLC (FLX Contracting) — High-Pressure Dual-Component Crack Injection (Injection Work) in UAE
Injection Work

High-Pressure Dual-Component Crack Injection

Electric pump delivering structural epoxy and polyurethane deep into concrete fissures.

F L X Building Contracting LLC (FLX Contracting) — Deep Retaining Wall & Shoring Grouting (Injection Work) in UAE
Injection Work

Deep Retaining Wall & Shoring Grouting

Multi-port mechanical packer injection along continuous concrete wall joints to arrest groundwater ingress.

F L X Building Contracting LLC (FLX Contracting) — Active Water Leakage Polyurethane Seal (Injection Work) in UAE
Injection Work

Active Water Leakage Polyurethane Seal

Rapid-reacting expanding hydrophobic PU foam instantly stopping gushing water flows.

F L X Building Contracting LLC (FLX Contracting) — Foundation Slab Joint & Lance Grouting (Injection Work) in UAE
Injection Work

Foundation Slab Joint & Lance Grouting

Deep packer lance chemical resin injection sealing substructure cold joints and porous masonry.

Technical Parameters

Injection PolymersHydrophobic / Hydrophilic PU, Low-Viscosity Epoxy, Acrylate Gel
Viscosity Range10 mPa.s – 450 mPa.s (Ultra-Deep Penetration)
Pump PressureVariable up to 250 Bar (3,600 PSI)
Elongation CapacityUp to 300% (Flexible Movement Accommodating)
Potable Water CertWRAS / NSF 61 Compliant for Reservoirs
Quality VerificationZero Residual Dampness & Monolithic Re-Bonding

Frequently Asked Questions: Injection Work

Direct engineering answers regarding UAE municipal compliance, testing standards, and site execution.

Hydrophilic and hydrophobic polyurethane (PU) resins react with water and expand into a flexible foam or gel to immediately stop active water leaks and pressurized groundwater ingress. Low-viscosity epoxy resin is used on dry or damp structural cracks to structurally weld concrete back to its original monolithic strength.

Enquire About Injection Work

Submit technical parameters for rapid estimation and site inspection.

Senior Estimator:052 645 5004