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.

Why this product exists

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.

The numbers that matter

• 1-2% plastic state expansion: This measured expansion happens in the critical initial hours (starting within 15 minutes and completing within 3 hours), actively compensating for natural cement shrinkage and settlement. The result is a fully packed void, eliminating gaps that compromise load transfer or structural stability.
• >55 MPa compressive strength at 28 days: This high ultimate strength provides robust structural support, ensuring the grouted elements can withstand significant compressive loads over time. It is a critical metric for underpinning, base plate grouting, and other load-bearing applications.
• >10 MPa bond strength at 28 days: Measured by ASTM C882-1987, this bond strength indicates a powerful adhesion to concrete substrates. For anchor bolts and rebar, this ensures secure anchorage and efficient load transfer, crucial for the long-term performance of fastening systems.
• 0% bleed: The complete absence of bleed water means a dense, uniform grout matrix forms without water separation. This prevents the formation of weak, porous layers or voids beneath contact surfaces, maintaining consistent strength and preventing degradation over time.
• Grouting from 20mm to 150mm: This wide application thickness range allows a single product to manage various void sizes, from narrow panel joints to larger cavities or infills. This versatility simplifies material procurement and application planning on site.