Fosroc Renderoc Bb 20kg

Renderoc BB is a specially formulated concrete reinstatement mortar designed for bearing pad and structural seat applications. Supplied as a ready-to-use dry powder, it only requires the addition of clean water to produce a high-performance mortar with excellent handling, rapid strength gain, and long-term durability.

Based on Portland cement, graded aggregates, and proprietary chemical additives, Renderoc BB offers a low water demand mix that ensures a strong, durable finish. Its coarse aggregate content provides the textured surface required to effectively support structural bearings.

Key Features:

• Rapid strength development – ideal for time-sensitive structural reinstatement

• Contains coarse aggregate – produces a rough-textured surface to support bearings

• Uses shrinkage-limited cement – complies with AS 3972 and RTA 3211

• Aggregate grading conforms to RTA B80 Table B80.3

• Drying shrinkage meets RTA B80 Table B80.7 requirements

• No expansive admixtures – maintains dimensional stability in plastic and dry states

• Non-reactive aggregate – tested for AAR using RTA T363 (Accelerated Mortar Bar Test)

Typical Uses:

• Bearing pad repair and seat reinstatement in bridges and structural supports

• Concrete repairs where rough finish and coarse aggregate are required for mechanical performance

• Infrastructure applications requiring compliance with RTA and AS specifications

Packaging:
20kg bag

Coverage:
Approx. 10–11 litres per 20kg bag (subject to substrate and compaction)

Compressive Strength:
Develops early and long-term compressive strength (specific values available in TDS)