Achieving reliable, shrinkage-compensated grouting is fundamental to structural integrity. RLA Penaflow Panel Grout ensures precise void filling and firm support for diverse construction elements, from precast panels to anchor bolts. Its versatile formulation supports dry pack, trowelable, pourable, or pumpable applications. This guarantees effective material placement and controlled plastic state expansion where it matters most, eliminating costly rework from settlement or cracking.
RLA Penaflow Panel Grout was formulated as a Class A cementitious construction grout to address critical issues of shrinkage and settlement in general construction. By incorporating high-quality graded aggregates and specialised additives, it delivers controlled gaseous expansion while the grout is in its plastic state. This process actively eliminates voids and prevents shrinkage-induced defects, ensuring full contact and reliable load transfer for structural elements.
Yes, this grout is specifically formulated for grouting under precast panels and concrete sections. Its controlled plastic state expansion eliminates shrinkage, ensuring full load transfer and preventing settlement.
RLA Penaflow Panel Grout can be applied in thicknesses from 20mm up to 150mm in a single application. This range handles common panel and base plate grouting requirements effectively.
Yes, RLA Penaflow Panel Grout achieves over 20 MPa compressive strength at 1 day and over 40 MPa at 7 days. This allows for quicker loading and earlier progression of work on site.
Yes, it is pumpable for larger applications. For optimal results, use a positive displacement pump and ensure continuous bottom-up placement to minimise air entrapment.
| Application | Key benefit | Primary trades |
|---|---|---|
| Grouting precast panels and concrete sections | Ensures full contact and load transfer with 1-2% plastic state expansion, preventing settlement and shrinkage cracking. | Concreters, Precast Erectors, Commercial Builders |
| Filling anchor bolt holes | Provides high bond strength (>10 MPa at 28 days) and non-shrink properties for secure anchorage. | Civil Contractors, Installers, Engineers |
| Filling cavities, gaps, and core holes | Achieves complete void filling with 0% bleed and pumpability for efficient, dense infills from 20-150mm. | Blocklayers, Remedial Repairers, Maintenance Teams |
| Underpinning and structural support | Delivers high compressive strength (>55 MPa at 28 days) and controlled expansion for reliable foundation reinforcement. | Underpinning Specialists, Structural Repairers |
Construct leakproof, watertight formwork. Use foam rubber strips or silicone sealant at joints to prevent grout loss.
Ensure formwork allows for a grout head (header box) above the underside of the base plate to maintain gravity flow.
Mechanical mixing is mandatory. Use a high shear mixer or forced action mixer. Do not mix by hand.
Dry Pack: 2.7 - 2.9 Litres
Trowellable: 3.0 - 3.4 Litres
Flowable: 3.6 - 4.0 Litres
Place continuously to avoid air entrapment. Do not vibrate.
Use a positive displacement pump. Pump from the bottom upwards to displace water and prevent air pockets.
Pour from one side only using a header box. Maintain the grout head at all times to ensure continuous flow.
Danger
RLA Penaflow Panel Grout contains crystalline silica and portland cement. It causes skin irritation, serious eye damage, and may cause an allergic skin reaction or respiratory irritation. Prolonged or repeated exposure may cause damage to organs and may cause cancer.
Wear protective gloves (neoprene or PVC), protective clothing (overalls and PVC apron), safety glasses, and a full face shield. For respiratory protection, use an approved dust respirator (P2 particulate filter) if dust inhalation risk exists.
Use only outdoors or in a well-ventilated area. Avoid breathing dust or fumes. If irritation persists or you feel unwell, seek medical attention.
Store locked up in original, securely sealed containers. Keep in a cool, dry area, protected from environmental extremes. Keep container tightly closed. Avoid contact with strong acids, acid chlorides, acid anhydrides, chloroformates, copper, aluminium, and their alloys. Dispose of contents and containers to an authorised hazardous or special waste collection point, following local regulations.
Proper substrate preparation is critical for the bond and performance of any grout. This guide details key steps for common applications.
Surface prep: The substrate must be clean, sound, and free from dust, oil, grease, curing compounds, or any foreign matter that could affect adhesion. Ensure all bolt holes and anchor points are clean.
Presoaking: All prepared areas must be saturated with water for 4 hours before grouting to reduce substrate porosity. Before placing grout, remove all excess water, ensuring no puddles or free water remain in holes.
Formwork: Construct formwork to be leakproof and watertight, using foam rubber strips or a suitable sealant like polyurethane or silicone. Maintain a grout head above the underside of the base plate and coat formwork with release oil for easy removal.
Primer: Not required, provided the substrate is correctly prepared and presoaked.
| Property | Value |
|---|---|
| Colour | Grey |
| Shelf Life | Nine months |
| Packaging | 20kg Poly-lined Bags |
| Application Temperature Range | 10ºC - 30ºC |
| Coverage | 2.0 kg/m²/mm |
| Expansion Characteristics | 1-2% (Plastic State) |
| Time for Expansion Start | 15 minutes |
| Time for Expansion Finish | 3 hours (Plastic State) |
| Bleed | 0% |
| Young's Modulus | 25 GPa |
| Dry Pack Water per 20kg Bag | 2.7-2.9 litres |
| Trowellable Water per 20kg Bag | 3.0-3.4 litres |
| Flowable Water per 20kg Bag | 3.6-4.0 litres |
| Dry Pack Yield per 20kg Bag | 10.3 litres |
| Trowellable Yield per 20kg Bag | 10.6 litres |
| Flowable Yield per 20kg Bag | 11.0 litres |
| Dry Pack Initial Set Time at 20°C | 1.5 hours |
| Dry Pack Final Set Time at 20°C | 2.5 hours |
| Trowellable Initial Set Time at 20°C | 3 hours |
| Trowellable Final Set Time at 20°C | 4.5 hours |
| Flowable Initial Set Time at 20°C | 4.5 hours |
| Flowable Final Set Time at 20°C | 6.5 hours |
| Compressive Strength 1 Day at 20°C | >20 MPa |
| Compressive Strength 3 Days at 20°C | >30 MPa |
| Compressive Strength 7 Days at 20°C | >40 MPa |
| Compressive Strength 28 Days at 20°C | >55 MPa |
| Flexural Strength 1 Day at 20°C | >1.5 MPa |
| Flexural Strength 3 Days at 20°C | >3.5 MPa |
| Flexural Strength 7 Days at 20°C | >8.5 MPa |
| Flexural Strength 28 Days at 20°C | >9.5 MPa |
| Bond Strength 7 Days (ASTM C882-1987) | >5 MPa |
| Bond Strength 28 Days (ASTM C882-1987) | >10 MPa |
| Fluid Flowable Grout Flow Distance 10mm Gap (100mm Head) | 1.9 meters |
| Fluid Flowable Grout Flow Distance 10mm Gap (250mm Head) | 2.0 meters |
| Fluid Flowable Grout Flow Distance 20mm Gap (100mm Head) | 2.0 meters |
| Fluid Flowable Grout Flow Distance 20mm Gap (250mm Head) | 2.5 meters |
| Fluid Flowable Grout Flow Distance 30mm Gap (100mm Head) | 2.5 meters |
| Fluid Flowable Grout Flow Distance 30mm Gap (250mm Head) | 2.8 meters |
| Fluid Flowable Grout Flow Distance 40mm Gap (100mm Head) | 2.8 meters |
| Fluid Flowable Grout Flow Distance 40mm Gap (250mm Head) | 3.0 meters |
| Fluid Flowable Grout Flow Distance 50mm Gap (100mm Head) | 3.0 meters |
| Fluid Flowable Grout Flow Distance 50mm Gap (250mm Head) | 3.2 meters |
| Fluid Flowable Grout Flow Distance 100mm Gap (100mm Head) | 3.0 meters |
| Fluid Flowable Grout Flow Distance 100mm Gap (250mm Head) | 3.5 meters |
Here are some common examples on where RLA UW Penaflow Grout used by our customers.
