SikaCem®-900 Geo W

UL listed for drinking water applications

12 months in original, unopened packaging

Store in a dry, covered area, protected from the elements

For optimum performance it is recommended to store the material between 40°F - 95°F (5°C - 35°C)

Protect from moisture. If damp, discard material.

3x6" cylinders

No cracking or severe deterioration with light surface scaling

8.0 - 8.5 pints per 65-lb bag (3.79 - 4.02 L per bag)

15.4 - 16.3 gallons per 1,000-lb bulk bag (58.2 - 61.9 L per bulk bag)

30.8 - 32.7 gallons per 2,000-lb bulk bag (116 - 122 L per bulk bag)

40 °F - 95 °F  (4 °C - 35 °C) 

40 °F - 95 °F  (4 °C - 35 °C) 

136.4 lb/ft³ (2,184 kg/m³)

0.53 ft³ (0.015 m³) per 65-lb bag

0.30 yd³ (0.465 m³) per 1,000-lb bulk bag

0.60 yd³ (0.465 m³) per 2,000-lb bulk bag

Yield figures do not include allowance for surface profile and porosity or material waste

Apply in accordance with the ACI 506 “Guide to Shotcrete” publication.

• Performance of in-place shotcrete relies heavily upon application techniques.
• The shotcrete material, equipment and key personnel should be pre-qualified prior to project start-up to ensure optimum quality of in-place shotcrete.

For other applications, contact your local Sika STM Technical Representative for more information.

OPTIMUM PERFORMANCE

• Product should not be applied when ambient, substrate, and material termperatures are below 40 °F (5 °C) or above 95 °F (35 °C).
• For adverse temperatures, follow ACI recommendations for Cold/Hot Weather Concreting.

• Surfaces must be clean and sound. Remove all deteriorated concrete, dirt, dust, oil, grease, contaminants and other bond-inhibiting materials from the area to be repaired.
• To ensure optimum repair results, the effectiveness of decontamination and substrate preparation can be assessed by a Pull-Off test (i.e Tensile Adhesion test per ASTM C1583).
• Saw cut the perimeter edges of the repair area.
• Remove any and all protruding material i.e brick, concrete, mortar, etc.
• Ensure that any and all leaks are stopped prior to application.

• Place 75% of required water into mixer and slowly introduce entire bag of SikaCem®-900 Geo W while the mixer is running.
• Allow SikaCem®-900 Geo W to mix for a minimum of three minutes.
• Slowly add balance of required water until desired slump has been obtained, not exceeding maximum recommended volume of water.
• Maximum recommended volume of water is 0.95-gallon (3.6-liters) per 65-lb bag, 14.25-gallons (54-liters) per 1,000-lb bulk bag and 28.5-gallons (108-liters) per 2,000-lb bulk bag.
• Continue mixing and stop only after material has reached a consistent, homogeneous mix.

▪  At the time of application, surfaces should be SSD but hold no standing water

▪ Apply SikaCem®-900 Geo W by wet shotcrete or troweling for repairing vertical or overhead surfaces

▪ After application, allow it to stiffen for about 10 minutes before removing bumpy areas with a trowel

▪ If applying multiple layers, allow the material to reach initial set. This will take anywhere from 45 minutes to several hours, depending on mix consistency, mix and ambient temperature, wind conditions and humidity

▪ Begin and finish a given patch on the same day.

• As per ACI recommendations for Portland cement concrete, curing is required
• Moist cure with wet burlap and polyethylene, a fine mist of water, Sikagard^® 1315 KNS or other ASTM C309- or C1315-compliant curing compound
• Curing compounds can adversely affect the adhesion of following lifts of mortar, leveling mortar or protective coatings
• Moist curing should commence immediately after finishing. Protect freshly applied mortar from direct sunlight, wind, rain and frost.