Product Data Sheet Show all documents

King® MS-D1 FSR

Fire-spalling resistant shotcrete material for dry-mix process applications

King® MS-D1 FSR is a pre-blended, pre-packaged, shotcrete mix formulated for dry-mix process applications and engineered to resist fire-induced spalling. It contains Portland cement, silica fume, air-entraining admixture, blended aggregates, along with other carefully selected components, including polypropylene microfibres specifically incorporated to provide fire-spalling resistance. King® MS-D1 FSR offers significantly improved shooting characteristics and enhanced physical properties.

King® MS-D1 FSR provides the following characteristic and benefits:
  • Polypropylene microfibers, specifically added to reduce fire-induced spalling, in accordance with ASTM C1116 (Type III)
  • Air-entrainment provides superior resistance to freeze-thaw cycling and salt-scaling resistance
 
  • Improved adhesive and cohesive plastic properties
  • Significantly reduced rebound, resulting in lower material usage
  • Improved ability to build greater thicknesses in a single pass in both vertical and overhead orientations
  • Very low permeability
  • Low shrinkage
  • Designed with natural normal-density non-reactive aggregates to eliminate potential alkali-aggregate reactivity (AAR)
   OPTIMAL FEATURES    Setting Accelerator (X)
  • Allows earlier placement of successive shotcrete lifts
  • Improves performance when applied in the presence of running water
  • Enables earlier reopening of traffic lanes on bridges and in subway tunnels 
   Product Setting Accelerator Dosage King® MS-D1 FSR - King® MS-D1 FSR X Level 1 King® MS-D1 FSR X2 Level 2
Product Data Sheet Show all documents

Usage

King® MS-D1 FSR can be used in the following applications, but is not limited to:
  • New construction, such as shaft and tunnel linings, where high resistance to fire-induced spalling is required.
  • Rehabilitation and repair of existing structures where the repair material must provide resistance to fire-induced spalling.

Advantages

King® MS-D1 FSR provides the following characteristic and benefits:
  • Polypropylene microfibers, specifically added to reduce fire-induced spalling, in accordance with ASTM C1116 (Type III)
  • Air-entrainment provides superior resistance to freeze-thaw cycling and salt-scaling resistance
 
  • Improved adhesive and cohesive plastic properties
  • Significantly reduced rebound, resulting in lower material usage
  • Improved ability to build greater thicknesses in a single pass in both vertical and overhead orientations
  • Very low permeability
  • Low shrinkage
  • Designed with natural normal-density non-reactive aggregates to eliminate potential alkali-aggregate reactivity (AAR)
   OPTIMAL FEATURES    Setting Accelerator (X)
  • Allows earlier placement of successive shotcrete lifts
  • Improves performance when applied in the presence of running water
  • Enables earlier reopening of traffic lanes on bridges and in subway tunnels 
   Product Setting Accelerator Dosage King® MS-D1 FSR - King® MS-D1 FSR X Level 1 King® MS-D1 FSR X2 Level 2

Packaging

  • 30 kg (66 lb) bag
  • 1000 kg (2205 lb) FIBC

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

Gradation

  • King® MS-D1 FSR is blended to meet ACI PRC-506 ''Shotcrete - Guide'', Table 1.1.1, Grading No. 2
Product Information

Shelf Life

12 months in original, unopened packaging

 

Storage Conditions

Store in a dry, covered area, protected from the elements. For optimum performance, it is recommended to store the material at temperatures between 5 °C (41°F) and 35 °C (95 °F).
Technical Information

Compressive Strength

King® MS-D1 FSRKing® MS-D1 FSR XKing® MS-D1 FSR X2

1 day

15 MPa 
(2175 psi)

21 MPa
(3045 psi)

21 MPa
(3045 psi)

7 days

32 MPa
(4641 psi)

32 MPa
(4641 psi)

32 MPa
(4641 psi)

28 days42 MPa
(6091 psi)		42 MPa
(6091 psi)		42 MPa
(6091 psi)

Resistance to Fire

HCM Fire Curve (Modified)

180 minutes
1300 °C (2372 °F)

Passed

Freeze Thaw De-Icing Salt Resistance

King® MS-D1 FSRKing® MS-D1 FSR XKing® MS-D1 FSR X2

56 cycles

0.10 kg/m2 (0.02 lb/ft2)

0.17 kg/m2 (0.03 lb/ft2)0.20 kg/m2 (0.04 lb/ft2)

Electrical Resistivity

28 days

500 ohm-m (1 640 ohm-ft)

Freeze thaw resistance

King® MS-D1 FSRKing® MS-D1 FSR XKing® MS-D1 FSR X2

300 cycles

100 %

96 %

96 %

Excellent durability factor

Porosity

Air Content

6 % ± 2 %

Maximum Air Void Spacing Factor

300 µm (0.012 in)

Boiled Absorption

6.0 %

Maximum Volume of Permeable Voids

14.0 %

Application

Application steps

SUBSTRATE QUALITY

All surfaces that will come into contact with King® MS-D1 FSR must be structurally sound, clean and free of dust, oil, grease, and any other contaminants that could interfere with proper bonding.

SUBSTRATE PREPARATION

The area to repaired must cleaned with potable water, leaving the concrete in a saturated surface-dry (SSD) condition, free of standing water.

  

For any repair or rehabilitation:

Remove all loose or delaminated concrete to expose a sound, roughened substrate, ensuring a minimum clearance of 25 mm (1 in) behind any reinforcing steel. Saw-cut the perimeter of the area to be repaired to a minimum depth of 20 mm (¾ in).

APPLICATION

Apply in accordance with the ACI PRC-506 ''Shotcrete - Guide'' publication.

CURING TREATMENT

Curing is essential to optimize physical properties of the shotcrete and minimize plastic shrinkage.Curing is particularly critical in rapid moisture loss conditions such as high temperatures, high winds and low humidity. King® MS-D1 FSR should be cured immediately after material has reached initial set in accordance with ACI 308 ''Guide to Curing Concrete''. Continuously moist cure the material for a minimum period of seven (7) days. Alternatively, moist cure for a minimum period of 24 hours and apply a curing compound that complies with ASTM C309. 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'' .

CLEAN UP

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

 

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