SpECtop Armourite Standard
DRY SHAKE, MONOLITHIC SURFACE HARDENER FOR NEW CONCRETE FLOORS
SpECtop Armourite Standard is supplied in 25kg bags and consists of graded synthetic mineral aggregate blended with Ordinary Portland cement and plasticisers. SpECtop Armourite Standard is applied to plastic concrete and the resulting finished surface is extremely dense, abrasion resistant and hard wearing. As the application of SpECtop Armourite Standard results in the floor curing monolithically with the topping, excessive shrinkage, cracking etc., is avoided. The aggregate used, apart from being completely inert chemically, is exceptionally hard and is not prone to polishing.
Technical Details
It is particularly suited for heavy industrial wear.
· No additions required – ready to use
· Extremely hard wearing aggregate resulting in high resistance to abrasion and impact
· Monolithic bond to host concrete
· Resistant to oils and greases
| Typical Values Compressive strength | |
| 28 days | 70 N/mm² |
| Abrasion Resistance | Test data indicates that concrete floors treated with SpECtop Armourite Standard exhibit an abrasion resistance 300% better than that exhibited by 40 N/mm² concrete on its own. |
| Hardness | When tested against the Mohs hardness scale, the synthetic aggregate used in SpECtop Armourite Standard provided values in excess of 7.0. |
| Impact Resistance | Testing in accordance with B.S. 8204: Part 1 gave results 3.5 times better than those required of a screed designed to with stand heavy traffic. |
It is essential that adequate planning of the application is made in advance and that sufficient material is laid out to meet the requirements of the application.
The base concrete slab should have a thickness not less than 80mm and the concrete mix design should be formulated as follows:
Water/cement ratio < 0.50
Cement content/m3 > 300kg
Slump > 75mm
Air entrainment < 2%
Vacuum dewatering should not be used.
Application
SpECtop Armourite Standard should be applied at the rate of 5 to 7kg/m² depending on the degree of traffic anticipated.
SpECtop Armourite Standard must be applied as soon as the base concrete has reached the stage where light foot pressure leaves an indentation of around 5mm or as soon as it is practicable to apply the product correctly without damaging the plastic surface of the base slab.
On large applications it is essential that sufficient operatives are available to work at a controlled rate behind the concreting team.
SpECtop Armourite Standard is applied in two applications. The first application utilises two thirds of the chosen application rate and is broadcast evenly across the surface but ensuring the material lands nearly vertically rather than spread horizontally. Once applied the free water in the base concrete will slowly darken the applied material and once this stage is complete, wood floating of the surface can commence. Do not over trowel at this stage.
The remaining one third of the material can now be applied and moisture allowed to combine with the material as before and wood floating of the surface can be completed. Once the floor has attained a degree of stiffness at which light foot traffic does not mark the surface, steel floating and/or power floating can progress.
Medium duty 5kg/m²
Heavy duty 7kg/m²
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