Potential Outcome: Debonding or hollow-sounding patches.
Adheseal Best Practice: Mechanically prepare to sound substrate (e.g., scabbling, grinding, or high-pressure water-blasting). Remove dust, slurry and contaminants. Saw-cut to a minimum depth to avoid feather edges.
Potential Outcome: Reduced strength, increased shrinkage and surface dusting.
Adheseal Best Practice: Stick to ~3.0 L water per 20 kg. Mix to a cohesive, non-slump consistency suitable for vertical/overhead application; do not re-temper once setting has begun.
Restore cover to corroded reinforcement on vertical elements without sag, while hitting program deadlines and strength targets.
Cut back to sound concrete and clean steel; prime steel where required. Pre-dampen substrate to SSD, then place HB50 at 20–40 mm in one pass. Compact well to encapsulate bars. Finish with float/sponge; cure to prevent rapid moisture loss.
Avoid feather edges — saw-cut the perimeter; where depths exceed 80 mm, build in layers or use local formwork/pockets up to 120 mm.
Tight finishing window before coating; need consistent edges and minimal shrinkage to avoid telegraphing under paint.
HB50’s shrinkage-compensated matrix limits movement across step-downs. Apply 10–20 mm; finish and cure. Once dry and stable, proceed with the selected protective coating system per manufacturer guidance.
Respect ambient conditions (5–35 °C). Protect from wind and direct sun; use curing compound or wet hessian where appropriate.
Achieve long-term cover and reduced permeability to mitigate chloride ingress and carbonation risk.
HB50’s low permeability and strength development support durable reinstatement of cover. Specify substrate prep to SSD, controlled water addition (~3.0 L/bag), compaction, and curing to standard concrete practice.
Document thickness limits (single lift 5–80 mm; up to 120 mm in pockets/formwork) and curing regime aligned to Australian climate zones.
Typical single-lift range is 5–80 mm on vertical surfaces. In small pockets or with formwork, depths up to ~120 mm are achievable. For thicker sections, build in layers with adequate curing between lifts.
Use ~3.0 L of clean water per 20 kg bag. Mix to a cohesive, non-slump consistency suitable for vertical or overhead placement. Do not over-water and do not re-temper.
Covers approximately 1.85 kg/m²/mm. A 20 kg bag yields about 1.08 m² at 10 mm thickness. Always allow for substrate profile and wastage.
Yes. It is suitable for internal and external applications on properly prepared concrete. Protect fresh repairs from rain, sun and wind during early cure.
Once the repair has hardened and dried sufficiently. Timing depends on thickness and conditions. Follow the coating manufacturer’s moisture/strength requirements and carry out a moisture check before coating.
Apply between 5–35 °C. In hot or windy conditions, cool materials where possible and implement curing to prevent rapid moisture loss.
Application / Use Case | Key Benefit | Primary Trades |
---|---|---|
Spalled concrete repairs around corroded reinforcement | High build with strong bond and low permeability for durability | Remedial contractors, builders |
Vertical/overhead patching of columns, beams, soffits | Thixotropic, non-slump placement up to 80 mm in a pass | Builders, civil contractors |
Precast panel edge and corner reinstatement | Shrinkage-compensated, high early/ultimate strength for crisp edges | Precast installers, remedial specialists |
Durability repairs in chloride-exposed infrastructure | Low permeability to resist chloride ingress and carbonation | Engineers/specifiers, asset maintenance |
Cut back to sound concrete; remove weak/contaminated material. Clean and pre-dampen to SSD. Protect adjacent finishes.
Scabble, grind or high-pressure water-blast to expose sound aggregate and provide a profile.
Saw-cut to a minimum depth to avoid feather edges and ensure patch integrity.
Add powder to ~3.0 L clean water per 20 kg while mixing with a low-speed drill (≈400–600 rpm) or paddle mixer. Mix to a cohesive, thixotropic paste.
Adjust within manufacturer tolerance for placement method; do not over-water.
For difficult substrates, prepare a thin bonding slurry and apply wet-on-wet before main placement.
Press firmly into the substrate, compact to eliminate voids, and build to the required thickness.
Single pass 5–80 mm vertical/overhead; up to ~120 mm in small pockets or with formwork. Layer for deeper sections.
Float/sponge finish once material has firmed sufficiently; avoid over-working the surface.
Protect fresh repairs from rapid drying, rain and temperature extremes. Implement curing suitable to conditions (e.g., curing compound, damp hessian, or shade).
Overcoat once the repair has hardened and dried to the coating manufacturer’s requirements. Verify moisture and surface condition before coating.
Wear gloves, safety glasses and a P2/P3 dust mask when handling powder and mixing. Use protective clothing to avoid skin contact.
Ensure good ventilation during mixing and placement, especially indoors or in confined spaces.
Non-flammable. Avoid generating airborne dust. Store sealed in a cool, dry area away from moisture uptake.
Seek medical attention immediately in all cases of serious exposure.
Mechanically remove laitance, weak or contaminated layers; break out to sound substrate. Saw-cut perimeter; avoid feather edges. Pre-dampen to SSD (surface-saturated, no standing water).
Where substrates are highly absorbent or placement conditions are challenging, a compatible bonding slurry (HB50 mixed to a thin slurry) may be used to promote adhesion. Place wet-on-wet.
Bonding slurry (site-made)Clean to bright metal; remove rust/scale. Replace severely corroded sections per engineering advice.
If specified, apply an appropriate steel primer/passivator and allow to cure before placing HB50.
Steel passivating primer (as specified)Prepare to sound concrete and SSD. Maintain minimum thickness; compact to avoid entrapped air.
Where substrate is very smooth, lightly roughen to create a mechanical key.
—Remove friable material; roughen and clean. Pre-dampen to SSD prior to placement.
Use a cementitious bonding slurry or compatible bonding agent per project spec.
Cementitious bonding slurry