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A dimensionally compatible and durable polymer fibre reinforced, thixotropic repair mortar. When mixed with the correct amount of water, it produces a thixotropic, high strength repair mortar, reinforced with acrylic polymer fibres. It possess excellent bond characteristics to steel reinforcement and to concrete. It has low permeability and is extremely durable.
Greater thicknesses can be achieved when spray applied. Typical applications. Grey powder containing. Plastic density:. Volume of permeable voids ASTM. Porosity Rilem CPC Water penetration BS EN When tested 2. Application procedure. Preparation of substrate:. It is essential that the substr ate to be repaired is sound, clean and free of all contamination. The damaged areas of concrete to be removed should be clearly identified. The perimeter of the area should be saw cut to a depth of 10 mm and the edges cut as neatly as possible keeping the sides square.
Feather-edging is not permitted and a minimum thickness of 10 mm must be maintained over the whole repair area. The substrate should be prepared to provide a rough surface having at least a 5 mm amplitude at 20 mm frequency. If unsound or contaminated concrete is found to extend beyond the premarked area, consult the engineer in charge. Subject to his approval cut out as necessary back to clean sound concrete.
If reinforcement is corroded ensure that the back of the steel has been exposed. Reinforcement should have all rust removed by the use of power tools, abrasive blasting wet or dry or wire brushing.
Reinforcing steel should be exposed and cleaned around its whole circumference. Severely corroded reinforcement may require replacement and the engineer must be consulted. Water saturation:. Thoroughly saturate the surface of the concrete to provide a saturated surface dry condition.
Poor quality concrete may require soaking for a significant length of time. Any surface water should be removed using an oil free compressed airjet. The following mixing equipment is suitable, heavy duty slow speed drill with spiral mixing paddle, forced action mixer, such as Creteangle, Mixal, Pan Mixers etc.
Mixers attached to spray units such as Meyco Deguna or Putzmeister are suitable. The specified amount of water to obtain the desired consistency can be slightly varied according to site conditions but should not exceed 2. Mix for 3 minutes after all the powder has been added until mortar is homogeneous and lump free. Add water, if necessary, within the limits given, until the required consistency is achieved.
Mix for a further minutes. The amount of water required will be affected by ambient temperature and relative humidity. Maximum mixed temperature should be no more than. Levelling and initial finishing should be carried using a wooden or plastic float. Final finishing should be carried out using a steel float.
When the material has stiffened to the point where finger pressure lightly marks the surface, a final firm trowelling should be given using the steel float. Good curing is essential. Note :. In addition to shrinkage compensation, this. Store out of direct sunlight, clear of the ground on pallets, protect from rainfall. Avoid excessive compaction. Shelf life is 12 months when stored as above.
Safety precautions. In case of contact with eyes, immediately flush with plenty of water for at least 15 minutes. Call a physician. In case of contact with skin, wash skin thoroughly. Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local Degussa representative. Degussa reserves the right to have the true cause of any difficulty determined by accepted test methods. Quality and care. Box , Dubai, UAE. Whilst any information contained herein is true, accurate and represents our best knowledge and experience, no warranty is given or implied with any recommendations made by us, our representatives or distributors, as the conditions of use and the competence of any labour involved in the application are beyond our control.
As all Degussa technical datasheets are updated on a regular basis it is the user's responsibility to obtain the most recent issue. Learn more about Scribd Membership Home.
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