Description
Renderoc RG is supplied as a ready to use blend of dry powders which requires only the site addition of clean water to produce a free-flowing non-shrink repair micro concrete. The material is based on Portland cements, graded aggregates 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, the mixed Renderoc RG 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 shall be consulted.
Advantages
- Pre-packed to overcome site-batched variations.
- Can be pumped or poured into restricted locations.
- Highly fluid to allow for placement without vibration.
- Rapid strength gain to facilitate early reinstatement.
- Gaseous expansion system compensates for shrinkage and settlement in the plastic state.
- Contains no chloride admixture.
- High ultimate strengths and low permeability of cured repair.
- Ensures piletop integrity as part of a waterproofing system
- Resistant to Alkali Silica Reaction or Alkali Aggregate Reaction.
Properties
| Properties | |
|---|---|
|
Tensile strength |
2.0N/mm2 @ 28 days
|
|
Flexural strength (BS4551 - 80) |
5N/mm2 @ 28 days
|
|
Young’s Modulus |
25 kN/mm<sup>2</sup> |
|
Expansion characteristics |
Unrestrained expansion 1 to 4%. |
|
Pressure to restrain |
Approx. 0.004N/mm2.
|
|
Coefficient of thermal |
10 - 12 x 10-6 / °C.
|
|
Thermal conductivity |
1.5 W/m0C |
|
Fire rating |
Class A1 |
|
Potential Alkali Reactivity |
<0.1% |
|
Fresh wet density
(Mixed density @27°C)
|
2100 - 2200 kg/m3
|