Fosroc Renderoc Rgl, Packaging Size: 25 kg

Renderoc ® RG(L) Cost effective, General purpose, non-shrink, cementitious microconcrete Uses For economical repairs to damaged reinforced concrete elements, particularly where access is restricted and where vibration of the placed material is difficult or impossible. Suitable for various structural strengthening measures such as filling honeycombs and cracks. Advantages Gaseous expansion system compensates for shrinkage and settlement in the plastic state. Can be pumped or poured into restricted locations. Highly fluid to allow for placement without vibration. Pre-packed to overcome site-batched variations. Low permeability Economical Contains no chloride admixture. Ease of use Description Renderoc RG(L) is supplied as a ready to use blend of dry powder, which requires only the site addition of clean water to produce a free-flowing, non-shrink microconcrete. The material is based on Portland cements, and fillers, 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, Renderoc RG(L) may be modified by the addition of 5mm to 12mm clean, graded saturated surface dry aggregates at site. For exceptionally large repairs, the local Fosroc office should be consulted. Technical support Fosroc offers a technical support package to specifiers, end users and contractors as well as technical on-site assistance in locations all over the country. Design criteria Renderoc RG(L) can be applied in sections upto 100mm deep. For larger sections, the addition of approved aggregates may be required. This will depend on the specific configuration of the repair location. Consult the local Fosroc office for further information.Properties The following results were obtained at a water:Powder ratio of 0.19 @ 300 C. Test Typical result at 300 C Compressive strength (N/mm2 ) 1 Day 8 7 Days 25 28 Days 35 Flexural strength 3N/mm2 @ 28 days Young's Modulus 22 kN/mm2 Expansion characteristics Unrestrained expansion 1 to 4%. Pressure to restrain Plastic expansion Approx. 0.004N/mm2. Coefficient of thermal 10 - 12 x 10-6/ 0 C expansion Fresh wet density 2100 - 2200 kg/m3Specification clauses The fluid micro-concrete microconcrete shall be Renderoc RG(L), a single component, cement-based material to which only the site-addition of Renderoc RG(L), a single component, cement-based material to which only the site-addition of clean water ( and approved graded coarse aggregates where specified) shall be permitted. The repair grout in the flowable consistency should achieve a compressive strength of not less than 8N/mm2 after 24 hours at 300C. Most importantly, the cured micro concrete shall contain no metallic aggregates, or chlorides and shall be shrinkage compensated in the plastic state. The micro concrete shall have a coefficient of thermal expansion similar to that of the host concrete.