GRADATION 

• By default King® MS-D3, King® MS-D3 MF and King® MS-D3 ST are blended to meet ACI 506 “Guide to Shotcrete”,  Table 1.1, Gradation No. 1
• King® MS-D3 G2, King® MS-D3 ST G2 and King® MS-D3 MF G2 are blended to meet ACI 506 “Guide to Shotcrete”, Table1.1, Gradation No. 2

12 months in original, unopened packaging 

Material should be stored in a dry, covered area, protected from the elements. For optimum performance it is recommended to store the material between 5°C ( 40°F) and 35°C (95°F) .  

Underground environments

Physical properties may be adversely affected if material is stored in temperatures below 5°C ( 40°F), material stored below these temperatures should be allowed to warm to ambient underground temperatures before shooting.For optimum performance it is recommended to store the material between 5°C ( 40°F) and 35°C (95°F) .

King® MS-D3 ST & MF 

6% ± 2%

300 μm

6.0%

15.0%

• Approx. 0.014 m³ (0.5 ft³) / 30 kg (66 lb) bag
• Approx. 0.45 m³ (16.5 ft³) / 1,000 KG (2,205 lb) bag 

* Yield in service may slightly vary according to projects conditions 

 TEMPERATURES ABOVE 5°C (40°F): 

• 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).

• 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).

   TEMPERATURES BELOW 5°C (40°F)

Use King® MS-D3 X2 or King® MS-D3 X3 / King® MS-D3 X2 MF or King® MS-D3 X3 MF / King® MS-D3 X2 ST or King® MS-D3 X3 ST

• 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.

• 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 25 mm (1 inch) clearance behind the reinforcing steel. The perimeter of the repair area should be sawcut a minimum of 20 mm (¾ inch). 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 –5 °C (20 °F) within 6 hours following the application of shotcrete. Do not apply when temperature of receiving surface is below –5 °C (20 °F). Material temperature should be maintained above 10 °C (50 °F) at the time of application. Mixing water temperature should be maintained between 20°C (70° F) and 25 °C (80 °F).

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

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 5 °C (40 °F) or above 35 °C (95 °F).
• For adverse temperatures, follow ACI recommendations for Cold/Hot Weather Concreting.

TEMPERATURES BELOW 5°C (40°F)  :

Do not apply King® MS-D3 X2 or King® MS-D3 X3 when ambient temperature is below or is expected to fall below –5 °C (20 °F) within 6 hours following the application of shotcrete.

Do not apply when temperature of receiving surface is below –5 °C (20 °F). Material temperature should be maintained above 10 °C (50 °F) at the time of application.

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 5°C (40ºF) :

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.