Fluid Micro Concrete, Packaging Type: Bag, Packaging Size: 25 Kg

Product Details

Renderoc RG Spl is used for repairs to damaged reinforced concrete elements, particularly where access is restricted and where vibration of the placed material is diffi cult or impossible. It is suitable for various structural strengthening measures such as encasement build-ups, jacketing , piletop encapsulation resin system, etc. Advantages  Gaseous expansion system compensates for shrinkage and settlement in the plastic state.  Can be pumped or poured into restricted locations.  Fluidity to allow for placement without vibration.  Pre-bagged to overcome site-batched variations.  Rapid strength gain to facilitate early reinstatement.  High ultimate strengths and low permeability of cured repair.  Contains no chloride admixture.  Ensures piletop integrity as part of a waterproofi ng system Description Renderoc RG Spl is supplied as a ready to use blend of dry powders which requires only the site addition of clean water to produce a free-fl owing non-shrink repair micro concrete. The material is based on Portland cements, graded aggregates and fi llers, and additives which impart controlled expansion characteristics in the plastic state, while minimising water demand. The low water requirement ensures high early strength and long-term durability. For larger repairs, the mixed Renderoc RG Spl may be modifi ed by the addition of 5mm to 12mm clean, graded, saturated surface dry aggregates at site. For exceptionally large repairs, the local Fosroc offi ce shall be consulted. Technical support Fosroc off ers a technical support package to specifi ers, end users and contractors as well as technical on-site assistance in locations all over the country. Design criteria Renderoc RG Spl can be applied in sections upto 100mm deep. For larger sections, the addition of approved aggregates may be required. This will depend on the specifi c confi guration of the repair location. Fosroc offi ce shall be contacted for further information. Properties The following results were obtained at a water:Powder ratio of 0.15 @ 300C. Test Typical result at 300C Compressive strength (N/mm2 ) 1 Day 30 7 Days 60 28 Days 75 Tensile Strength 2N/mm2 @ 28 days Flexural strength 8N/mm2 @ 28 days Young's Modulus 25 kN/mm2 Expansion characteristics Unrestrained expansion of 1 to 4%. Pressure to restrain Plastic expansion - Approx. 0.004N/mm2 Coeffi cient of thermal 10 - 12 x 10-6 / 0C. expansion Thermal conductivity 1.5 W/m0C Fresh wet density 2300 - 2400 kg/m3 Specifi cation clauses Performance specifi cation The fl uid micro-concrete repair material shall be Renderoc RG Spl, a single component, cement based, micro-concrete to which only the site-addition of clean water ( and approved graded coarse aggregates where specifi ed) shall be permitted. The micro-concrete shall contain no metallic aggregates, or chlorides and shall be shrinkage compensated in the plastic state. The micro concrete in the fl owable consistency should achieve a compressive strength of not less than 30N/mm2 after 24 hours at 300C. Most importantly, the cured microconcrete shall have a coeffi cient of thermal expansion similar to that of the host concrete. Application instructions Preparation The unrestrained surface area of the repair must be kept to a minimum. The formwork should include drainage outlets for pre-soaking and, if beneath a soffi t, provision for airventing. Provision must also be made for suitable access points to pour or pump the mixed micro-concrete in place.