MASTERFLOW 928

MasterFlow 928 is formulated for use at any consistency from fluid to damp-pack, and may be used with confidence for bedding, grouting and precision bearing operations such as:
• Gas or steam turbines
• Generators
• Presses
• Crane rails
• Milling machines
• Precast elements
• Anchor bolts
• Suitable for use in bridge bearing applications
• Non shrink.
• Adjustable consistency.
• Proven and predictable performance.
• Excellent workability retention even at high ambient temperatures.
• High bond strength to steel and concrete.
• Early strength development even at fluid consistency.
• Good fatigue and impact resistance.
• Micro silica content enhances strength and durability.
• Impermeable.
• Can be extended by the addition of 5-13mm clean washed aggregate when large volume void filling is required – MasterEmaco FL 100 aggregate supplied in 20kg bags, subject to approval by BASF Construction Chemicals, Technical Services Department.

The surface onto which the grout is to be applied should be scabbled to remove laitance and expose aggregate. Do not use bush hammers or similar preparation equipment that can crush the aggregate but leave it in place. The surface must be free of oil, dust, dirt, paint, curing compounds, etc.
Soak area to be grouted with water for 24 hours prior to grouting to minimise localised absorption and to assist in the free flow of the grout. Surfaces should be damp but free of standing water.
Particular attention should be paid to bolt holes to ensure that these are water-free. Use oil free compressed air to blow out bolt holes and pockets as necessary.Base plate, bolts, etc. must be clean and free of oil, grease and paint etc. Set and align equipment. If shims are to be removed after the grout has set; lightly grease them for easy removal.
Ensure formwork is secure and watertight to prevent movement and leaking during the placing and curing of the grout. The area should be free of excessive vibration. Shut down adjacent machinery until the grout has hardened.
In hot weather, base plates and foundations must be shaded from direct sunlight. Bags of grout should be stored in the shade prior to use.
In cold weather, the temperature of base plates and foundations should be raised to >10°C.

In hot weather use cool water to bring the mixed grout temperature to <30°C. In cold weather use warm water to raise the mixed grout temperature to >10°C.