LeafSeal BC010A

LEAFSEAL BC010A | READY MIXED NON-SHRINK GROUT, PUMPABLE, COMPRESSIVE STRENGTH OVER 60MPa

Product Description:

LeafSeal BC010A is a ready-mix dry powder, requiring only the addition of water to create a non-shrink grout with a flowable or pumpable consistency. When mixed with water, it transforms into a highly fluid grout without segregation, suitable for filling intricate spaces. The compressive strength of LeafSeal BC010A increases at a medium speed, reaching over 60MPa at 28 days. It is formulated as a non-shrink, non-metallic, chloride, and nitrate-free grout with low water requirements, ensuring high early strength and long-term durability.

Features and Benefits:

• Shrinkage Compensation System:
  • Incorporates a shrinkage compensation system.
• Self-Levelling:
  • Exhibits self-levelling properties.
• Pre-Weighed Quality Controlled Unit:
  • Supplied as a pre-weighed, quality-controlled unit.
• Reduced Coefficient of Creep:
  • Reduces the coefficient of creep.
• High Ultimate Strength and Low Permeability:
  • Ensures high ultimate strength and low permeability for durability.
• Superior Workability:
  • Provides superior workability for flowable and pumpable consistency.
• Non-Metallic, Chloride, and Nitrate Free:
  • Formulated as a non-metallic grout without chloride and nitrate.
• Reduced Bleeding and Segregation:
  • Minimizes bleeding and segregation during application.

Application Range:

• Concrete repair and floor patching.
• Cavities, gaps, and recesses.
• Heavy machinery and equipment foundations, anchor bolts.
• Post-tensioned concrete ducts.
• Bearing plates and bridge sealing, beams, columns, and post-tensioned girders.
• Packing column bases and prefabricated unit joints.
• Pressure grouting of concrete structures and filling rigid joints in precast concrete structures.

Specification Clause:

The non-shrink grout used shall be LeafSeal BC010A, a premix mortar suitable for flowable and pumpable consistency, used following the manufacturer’s recommendations.

Packaging:

Available in 25kg multi-ply paper bags.

Storage:

Store under conditions similar to cement, i.e., damp-free, preferably palletized.

Shelf Life:

6 months when stored in the original unopened packaging.

Coverage/Yield:

Approximately 0.013 m³ per bag or approximately 76 bags/m³.

Surface Preparation:

Ensure a sound and clean substrate, free from loose materials. Wet the substrate with water, ensuring no free surface water is present. For large areas, use an appropriate bonding agent from the LeafSeal series, such as AD655. Formwork or saw-cut edges may be required to control expansion.

Mixing:

Mix correct proportions as indicated on the packaging using a mechanically powered grout mixer for optimal workability. Conventional or hand mixing may result in lower workability. Pour 80% of measured water into the container, gradually add dry powder, add the remaining water, and mix until the desired consistency is achieved. Wait 2-3 minutes before use. The mixing process typically takes 3 – 5 minutes. Do not mix more material than can be installed and finished within 20 minutes.

Placing:

Once mixed, do not re-tamper with water. For flowable or pumpable consistency, place LeafSeal BC010A into formwork from one side only to avoid air entrapment. Use a rod or strapping to assist in placement. Place continuously to eliminate voids. Do not vibrate, and LeafSeal BC010A may be placed in thicknesses up to 50mm at one pour.

Cleaning:

Clean tools and equipment immediately with water.

Curing:

Ensure good curing on all exposed surfaces, particularly under dry or sunny conditions. Failure to do so will affect bond strength and durability. After finishing, apply a relevant coat to all exposed surfaces or cure by other alternative methods.

Safety Data:

LeafSeal BC010A is a cement-based product. Handle with caution, avoid eye contact, wear a face mask to prevent dust inhalation, and seek immediate medical assistance in case of irritation or ingestion.

User Notes:

The technical details and recommendations are provided in good faith. It is the user’s responsibility to ensure products are used following LeafSeal’s instructions and for intended applications.

Technical Data:

• Release Date: April, 2020– Version 03
• Flow Consistency ASTM C1437, no strokes: 25 – 32 cm
• Water in use: 13% to 15% by weight (or as indicated on the packaging)
• Compressive Strength (ASTM C942):
  • 1 day: ≥ 20 N/mm²
  • 3 days: ≥ 30 N/mm²
  • 7 days: ≥ 45 N/mm²
  • 28 days: ≥ 60 N/mm²
• Packaging: 25kg/bag
• Temperature at the Site:
  • Minimum: 10°C
  • Maximum: 40°C
• Expansion ASTM C940: ≥ 0.1%
• Bleeding ASTM C940: 0%