SpECbuild BA10

SpECbuild BA10 modified mixes are versatile and can be used for various applications, including:

• Floor repairs
  
• Spalled concrete
  
• Bedding tiles
  
• Fixing slip bricks
  

SpECbuild BA10 offers several key advantages that make it an ideal choice for enhancing cementitious systems:

• Exceptional adhesion to various substrates including concrete, steel, brick, and glass
  
• Significant reduction in water vapour permeability by 96%
  
• Improved tensile, flexural, and compressive strengths
  
• Excellent resistance to water and water vapour
  
• Enhanced chemical resistance against mild acids, alkalis, sulphates, and chlorides
  
• Non-toxic formulation suitable for use with potable water
  

SpECbuild BA10 offers impressive technical attributes that enhance the performance of cementitious systems. Here are the technical specifications:

Application of SpECbuild BA10

Preparation:
It is essential that adequate preparation is carried out prior to the application of SpECbuild BA10 modified mixes. Ensure the complete removal of all laitance, oil, grease, mould oil, curing compounds, etc. A wire brush, bush hammer, or for large floor areas, a captive grit blasting machine may be used. Ensure reinforcing steel is clean and free from corrosion deposits, grease, or oil. When repairing spalled or damaged concrete, ensure the substrate is cut back to sound material.

Bonding Slurry:
Ensure that absorbent surfaces such as concrete, brick, stone, etc., are well dampened down, ensuring the surface is wet but has no free standing water. Prepare a bonding slurry consisting of 2 parts cement to 1 part SpECbuild BA10, adjusted to a brushable, lump-free consistency. Using a stiff brush, apply the bonding slurry well into the damp surface ensuring that no pinholes are visible. Do not apply bonding slurry at thicknesses in excess of 2mm.

Application of Modified Mixes:
It is important that SpECbuild BA10 modified mixes are applied to a wet bonding slurry. If a second coat is necessary, it must be applied after allowing the first coat to dry.

Mixing:
SpECbuild BA10 is supplied as a one-component kit. Mixing should preferably be carried out in a concrete mixer although hand batching is permissible where the total weight of the mix does not exceed 25 kgs. Charge the mixer with the required quantity of sand and cement, and premix for approximately one minute. Pour in the desired quantity of SpECbuild BA10 and mix for 2 to 3 minutes. Finally, add the water little by little, until the required consistency is achieved. Due to the strong plasticising properties of SpECbuild BA10, it is best to add the water cautiously as rapid thinning can occur.

Curing:
It is preferable to cure SpECbuild BA10 modified screeds as soon as they are laid to prevent rapid evaporation of water essential for hydration. This can be achieved by using polythene, damp hessian, or a suitable concrete curing membrane, such as SpECcure WE.

Equipment Cleaning:
All tools should be cleaned immediately after use using water, as on hardening the material can only be removed mechanically.

Application Temperature Range:
Minimum 5°C
Maximum 35°C
At temperatures above this range, the material should be stored in shade and cool water used for mixing.

SpECbuild BA10 is available in the following packaging options:

Available in 20 and 200 litre drums.

For detailed warranty information regarding SpECbuild BA10, please contact our team at SMCC using any of the contact methods available on this page.