King® MS-D3

12 months in original, unopened packaging 

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

40°F - 95°F (5°C - 35°C)

Underground Environments

Physical properties may be adversely affected if material is stored in temperatures below 40°F (5°C) and should be allowed to warm to ambient underground temperatures before application

AIR CONTENT 

MAXIMUM AIR VOID SPACING FACTOR

BOILED ABSORPTION 

MAXIMUM VOLUME OF PERMEABILITY VOIDS 

Approx. 0.5 ft³ per 66 lb bag (0.014 m³ per 30 kg bag)

Approx. 16.5 ft³ per 2205 lb FIBC (0.45 m³ per 1000 kg FIBC)

*May vary according to projects conditions 

Special precautions needed when using predampeners with dry blended powdered accelerated shotcrete.

Contact your Sika STM Technical Representative in for more information.

Temperatures above 40 °F (5 °C):

• Repair or Rehabilitation : All surfaces to be in contact with King® MS-D3 and its variations must be free from dust, oil, grease or any other foreign substances that may interfere with the bond of the material. Remove all loose or delaminated concrete providing a roughened surface and a minimum of 20 mm (¾ inch) clearance behind any corroded reinforcing steel. The perimeter of the repair area should be sawcut a minimum of 20 mm (¾ inch). Clean the area to be repaired with potable water, leaving the concrete saturated but free of standing water (SSD).
• Rock Surfaces : All surfaces to be in contact with King® MS-D3 and its variations must be free from dust, oil, grease or any other foreign substances that may interfere with the bond of the material. Remove all loose or delaminated rock. Clean the area with potable water, leaving the substrate saturated but free of standing water (SSD).

Temperatures below 40 °F (5 °C):

Use King® MS-D3 (X2 / X2 MF / X2 ST)

or King® MS-D3 (X3 / X3 MF / X3 ST)

• Repair or Rehabilitation: All surfaces to be in contact with King® MS-D3 X2 or King® MS-D3 X3 must be free from oil, grease or any other foreign substances that may interfere with the bond of the material. Remove all loose or delaminated concrete providing a roughened surface and a minimum of 1 inch (25 mm) clearance behind the reinforcing steel. The perimeter of the repair area should be sawcut a minimum of ¾ inch (20 mm). To avoid freezing of the interface between the shotcrete and the parent concrete, do not pre-wet the receiving surface. Pneumatically remove any free standing or other fine particles that may interfere with the bond between King® MS-D3 X2 or King® MS-D3 X3 and the substrate. Do not apply King® MS-D3 X2 or King® MS-D3 X3 when ambient temperature is below or is expected to fall below 20 °F (–5 °C) within 6 hours following the application of shotcrete. Do not apply when temperature of receiving surface is below 20 °F (–5 °C). Material temperature should be maintained above 50 °F (10 °C) at the time of application. Mixing water temperature should be maintained between 70° F (20°C) and 80 °F (25 °C).
• Rock Surfaces: All surfaces to be in contact with King® MS-D3 X2 or King® MS-D3 X3 must be free from dust, oil, grease or any other foreign substances that may interfere with the bond of the material. Remove all loose or delaminated rock. To avoid freezing of the interface between the shotcrete and the parent concrete, do not pre-wet the receiving surface. Pneumatically remove any free standing or other fine particles that may interfere with the bond between King® MS-D3 X2 or King® MS-D3 X3 and the substrate.

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

OPTIMUM PERFORMANCE

• King® MS-D3, King® MS-D3 X, King® MS-D3 MF, King® MS-D3 X MF, King® MS-D3 ST, and King® MS-D3 X ST  should not be applied when ambient, substrate, and material temperatures are below 40 °F (5 °C) or above 95 °F (35 °C).
• King® MS-D3 X2 and King® MS-D3 X3 should not be applied when ambient and substrate temperatures are below 20 °F (-5 °C) or when ambient, substrate and material temperatures are above 95 °F (35 °C).
• For adverse temperatures, follow ACI recommendations for Cold / Hot Weather Concreting.
• When using King® MS-D3 MF or King® MS-D3 ST, recommened minimum inside diameter of shotcrete hoses should be 2 inch (50 mm).

Contact your Sika STM a Technical Representative for more information.

Curing is essential to optimize physical properties of the shotcrete and minimize plastic shrinkage. Product should be cured immediately after material has reached initial set in accordance with ACI 308 “Guide to Curing Concrete”. Continuously moist cure for a minimum period of 7 days. Alternatively, moist cure for a minimum period of 24 hours and apply a curing compound that complies with ASTM C 309. Curing is particularly critical in rapid moisture loss conditions such as high temperatures, high winds and low humidity.

Underground environments 

Good curing conditions are beneficial to optimizing physical properties. Although the high relative humidity commonly found in underground environments provides for good curing conditions, additional curing is often appropriate and should be performed in accordance with ACI 308 “Guide to Curing Concrete''.

For temperatures below 40 ºF (5 °C):

A resin based liquid membrane curing compound approved for use in cold weather conditions should be applied immediately after shotcrete
reaches final set be applied immediately after shotcrete reaches final set.

Clean all tools and equipment after use with water. Once hardened, the product can only be removed mechanically.