Product Data Sheet Show all documents

King® MS-D1 MTQ

SHOTCRETE MATERIAL FOR DRY-MIX PROCESS APPLICATIONS

King® MS-D1 MTQ is a pre-blended, pre-packaged, shotcrete mix reinforced with synthetic fibres designed for dry process application. It is formulated with Portland cement, silica fume, air-entraining admixture, synthetic fibres, sand and stone as well as than other carefully chosen additives. It presents excellent shooting characteristics as well as superior physical properties.

  • Grade FR Class I shotcrete in accordance with ASTM C1480
  • Micro-synthetic fibres reduce cracking caused by intrinsic stresses
  • 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
  • Improved resistance to water wash-out
  • Low shrinkage
  • Very low permeability
  • Improved resistance to sulphate attack
  • Mix approved by the Ministère des transports du Québec for dry mix shotcrete application 
Product Data Sheet Show all documents

Usage

  • Rehabilitation of concrete bridges, dams, reservoirs, tunnels, marine structures and parking ramps
  • Lining and rehabilitation of sewers and watermains
  • New construction including slope stabilization, soilnailing, shaft and tunnel linings, pools and other concrete structures
 

Advantages

  • Grade FR Class I shotcrete in accordance with ASTM C1480
  • Micro-synthetic fibres reduce cracking caused by intrinsic stresses
  • 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
  • Improved resistance to water wash-out
  • Low shrinkage
  • Very low permeability
  • Improved resistance to sulphate attack
  • Mix approved by the Ministère des transports du Québec for dry mix shotcrete application 

Packaging

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

Custom packaging is available to suit specific project requirements 

Product Details

Product Information

Shelf Life

12 months in original, unopened packaging

Storage Conditions

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

Compressive Strength

1 day

10 MPa (1450 psi)

3 days

15 MPa (2175 psi)

7 days25 MPa (3625 psi)

28 days

35 MPa (5076 psi)

Tensile Strength in Flexure

28 days

6.5 MPa (940 psi)

Shrinkage

UNIAXAL DRYING SHRINKAGE

ASTM C157

650 µm

Porosity

AIR CONTENT

ASTM C457

6 % ± 2 %

MAXIMUM AIR VOID SPACING FACTOR

ASTM C457

300 μm

BOILED ABSORPTION

ASTM C642

6.0 %

MAXIMUM VOLUME OF PERMEABLE VOIDS

ASTM C642

15.0 %

Freeze thaw resistance

100 %

ASTM C666

Excellent durability factor

Salt Resistance

SALT SCALING RESISTANCE

ASTM C672

0.1 kg/m2  (0.02 lb/pi2)

Application

Consumption

Yield

  • Approx. 0.014 m3 (0.5 ft3) / 30 kg (66 lb) bag
  • Approx. 0.45 m3 (16.5 ft3) / 1000 kg (2205 lb) FIBC

Yield in service may slightly vary according to project conditions 
Application steps

SURFACE PREPARATION

All surfaces to be in contact with King® MS-D1 MTQ and its variations must be free from dust, oil, grease or any other foreign substances that may interfere with the bond of the concrete. Remove all loose or delaminated concrete providing a roughened surface and a minimum of 25 mm (1 in) clearance behind any corroded reinforcing steel. The perimeter of the repair area should be saw-cut a minimum of 20 mm (¾ in). Clean the area to be repaired with potable water, leaving the concrete substrate saturated but free of standing water(SSD).

APPLICATION

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

   

PERFORMANCE OPTIMALE

  • For adverse temperatures, follow ACI recommendations for Cold/Hot Weather Concreting.
  • For cold temperature applications, use King® MS-D3

CURING TREATMENT

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 seven (7) days. Alternatively, moist cure for a minimum period of 24 hours and apply a curing compound that complies with ASTM C309. Curing is particularly critical in rapid moisture loss conditions such as high temperatures,high winds and low humidity.

CLEAN UP

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

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