Renderoc LA55

High performance, free flowing, low alkali, micro-concrete reinstatement mortar.

Description

Renderoc LA55 is supplied as a ready-to-use blend of dry
powders which require only the site addition of clean water to
produce a free-flowing, shrinkage-compensated, micro-concrete suitable for large volume repairs at a nominal thickness
in excess of 50mm.

The material is based on Portland Cement, graded aggregates
and additives, which minimise water demand, promote high
fluidity, ensures fast strength gain and long-term durability. A
unique system controls plastic and long-term drying shrinkage.
The aggregate grading is designed to aid uniform mixing and
to eliminate segregation under pumping pressures. It’s low
alkali content minimises the risk of alkali–silica reaction. The
hardened product exhibits excellent thermal compatibility and
very low water permeability.
Maximum aggregate size is 5mm.

Uses

Renderoc LA55 is ideal for the reinstatement of large, structural
sections of concrete, as well as for many smaller locations
where difficulties of access make hand or trowel-applied
mortars impractical. The highly fluid nature of Renderoc LA55
obviates the need for compaction and vibration even where
access to the repair zone is restricted or where reinforcement
is congested. It is suitable for use where excellent chloride
and carbon dioxide resistance is required or for repairs to
concrete affected by alkali-silica reaction (ASR). Renderoc
LA55 is alkaline in nature and will protect embedded steel
reinforcement. The resistivity of Renderoc LA55 makes it
suitable for electro-chemical repairs.
Renderoc LA55 is suitable for use with Galvashield XP
incipient anode protection and Cathodic Protection system.
Contact Fosroc for further details.

Advantages

• Maximum compatibility with concrete compressive
  strength, 30 – 60MPa
• Unique dual expansion system offers an extremely high
  level of control of plastic and long-term drying shrinkage
• Low alkali content minimises the risk of alkali-silica reaction
• Excellent bond to concrete substrates without
  independent primer
• Very low permeability provides excellent protection
  against carbon dioxide and chlorides
• Low thermal resistivity
• Suitable for high voltage cable grouting
• Exceptional flow allows pumping or pouring into
  restricted locations
• Self-compacting nature eliminates honeycombing and
  displaces air without vibration
• Suitable for electro-chemical repairs
• Pre-bagged to overcome site-batched variations – only
  the site addition of clean water is required
• Contains no chloride admixtures
• Potable water approved – complies to AS/NZS
  4020:2005

Product specification sheet

Manufacturer

Parchem Construction Supplies

Parchem Construction Supplies Pty Ltd is part of the Alesco Group and operates within the ‘Construction and Mining Division’. Alesco is a publicly listed industrial brands company who supply a diverse range of specialist industrial products in Australia and New