SikaGrout®-295 ZA
SikaGrout®-295 ZA is a one component, ultra-high strength, cement based grout, with high mechanical strengths, specifically designed and fatigue tested for use in the renewable energy field, under metal bases and concrete structures.
- Easy mixing and placing
- Rapid strength development
- Fatigue tested
- Good flow properties
- Pumpable
- Free from chlorides and metallic particles
- Protects metallic parts against corrosion, due to its high pH level.
- Expansive properties
- Very high mechanical strengths.
- Not corrosive or toxic
Usage
SikaGrout®-295 ZA may be used in areas where high mechanical strengths are required, such as :- Under Wind turbine bases
- Under bearing plates
- Between precast concrete segments
- Anchors in bases, concrete posts and precast construction columns.
- Cracks, gaps and large voids.
Advantages
- Easy mixing and placing
- Rapid strength development
- Fatigue tested
- Good flow properties
- Pumpable
- Free from chlorides and metallic particles
- Protects metallic parts against corrosion, due to its high pH level.
- Expansive properties
- Very high mechanical strengths.
- Not corrosive or toxic
Packaging
25kg bags
Colour
Grey powder
Product Details
APPROVALS / STANDARDS
Fatigue tested according to fib Model code 2010
Chemical Base
Cement, selected fillers, aggregates and special additives
Shelf Life
12 months from date of production
Storage Conditions
Store properly in dry conditions, in undamaged, original unopened bags
Maximum Grain Size
Dmax: ~3 mm
Density
~ 2.3 kg/l (density of fresh mortar )
Compressive Strength
Ambient temperature +20oC (water curing) (40 x 40 x 160mm prisms)
| 24 hours | 48 hours | 7 days | 28 days |
| ~ 35 N/mm2 | ~ 50 N/mm2 | ~ 80 N/mm2 | ~95 N/mm2 |
Modulus of Elasticity in Compression
~30GPa
Tensile Strength in Flexure
Ambient temperature: +20°C (water curing)
| 1 day | 7 days | 28 days |
| ~ 6.0 N/mm2 | ~ 8.0 N/mm2 | ~ 10.0 N/mm2 |
Tensile Strength
Ambient temperature: +25°C (Splitting tensile)
| 1 day | 7 days | 28 days |
| ~ 2.6 N/mm2 | ~ 3.8 N/mm2 | ~ 4.8 N/mm2 |
Application
Layer Thickness
10 mm min. / 150 mm max
Ambient Air Temperature
+5º C min / +35º C max.
Mixing Ratio
11.5 -12.0% or 2.87 - 3.0 litres per 25 kg bag / 57.5 - 60 litres per 500 kg
Substrate Temperature
+5º C min / +35º C max.
Pot Life
| Conditions | Time |
| +20°C / 50% r.h. | 90 minutes |
Temperature will affect the pot life. Application at temperatures above +23°C will reduce the pot life and the working time. Temperatures below +23ºC will increase the pot life and extend the working time.
Consumption
For 1 mm thickness per m2 ~ 2.05 kg of powder
Yield
~12.0 ltr per 25kg bag
MIXING
SikaGrout®-295 ZA can be mixed with a low speed (<500rpm) hand drill mixer to avoid entraining too much air.Mix only full bags for best results.
Pour the minimum recommended water in a suitable mixing container. While stirring slowly, add the powder to the water and mix thoroughly at least for 3 minutes adding additional water if necessary to the maximum specified amount to adjust the grout to the required consistency
APPLICATION
SikaGrout®-295 ZA is applied manually using traditional pouring techniques or for large applications using suitable pumping device. (refer to Sika technical department for advice). It is recommended to check the material after pumping.
Remove excess water from substrate surface e.g. with clean sponge, until surface is dark matt in appearance without glistening (saturated surface dry) . Surface pores and pits shall not contain water. Let the grout stand for ~5 minutes to release air entrained by mixing. Pour grout into the prepared openings using a sufficient pressure head to maintain a continuous flow of grout. Ensure air displaced by the mortar can easily escape. For optimum use of the expansion properties apply the grout within ~10 minutes after mixing.
Cure exposed surfaces immediately with protective sheet or membrane. Shield the fresh mortar from direct sun, wind and frost.
Finish exposed surface as desired as soon as the mortar has started to stiffen. Do not add additional water on surface. Do not over work surface as this may cause surface cracking.
CURING TREATMENT
Keep visible exposed grout surfaces to a minimum. Protect the fresh material from premature drying using appropriate curing method e.g. curing compound, moist textile membrane, polythene sheet etc.
CLEANING OF TOOLS
Clean all tools and application equipment with water immediately after use. Hardened/cured material can only be mechanically removed.