JK Cement Floor MaxX FS22 is a dry pre mixed, ready to use and factory controlled product for levelling and smoothening un-even floors prior to laying decorative carpets, floor tiles, etc. It is shrinkage controlled fast dry semi dry floor screed. It is composed of Ordinary Portland cement, selected aggregates, fibers and special chemical additives for enhancing the performance. It can be used for new or existing concrete slabs and flooring and insulation floors.
|Binder||Ordinary Portland Cement|
|Aggregate size||< 5 mm|
|Recommended layer Thickness||Up to 100 mm thickness
bonded 15–100 mm & un-bonded 50-100 mm | floating 65-100 mm
|Water Mixing Ratio||4.5 – 5.0 Liter potable water per 50 Kg bags.|
|Working life||Approx. 60 minutes|
|Mixing time||3 – 5 minutes|
|Dry Density||1.90 ± 0.1 Kg/L|
|Mix Density||2.1 ± 0.2 Kg/L|
|Packing size||50 Kg bag|
|Yield/50 Kg Bag||24 – 30 Liters|
|Coverage||2.50 – 3.50 m² /50 kg bag/10 mm thickness*|
|Compressive strength||> 25 N/mm² at 28 days|
|Flexural strength||> 5 N/mm² at 28 days|
|Resistance to Alkali||Excellent|
EN 13813:2002 | BS 8204:2010 | EN 13892-2:2002 and
The concrete substrate must be one months old, levelled and stable. The substrate must be thoroughly dried, cleaned, devoid of dust, loose particles, organic and inorganic debris, oil, grease and other contaminations that might else affect the bonding
For bonded screed, within a period of 60 minutes before laying the screed layer, the substrate should be brushed with a thin layer of creamy cementitious grout or slurry to obtain bonding treatment for subsequent layer of the screed.
For un-bonded screed and floating screed, fill all the cracks and cut out hollows and loose portions on substrate and make it smooth before laying membrane/polythene sheet prior to spread screed. To separate walls, beam and other concrete structures from screed use foam strips all around corners and edges and lay polythene sheet.
Mix a 50 Kg bag of JK Cement Floor MaxX FS22 with 4.5 – 5.0 Liters clean water using an appropriate concrete mixer or a mixing machine. This mixing is to be done in a clean plastic/non corrosive metal bucket. Mix it for 3 – 5 minutes until it is free from lumps and acquire homogenous mixture. Do not mix material manually by hand. Ensure that the temperature of the mixed material does not increase more than 32º C. If needed, use cool water for mixing. After allowing it to rest for 2 minutes, mix it again.
Limit manageable working area about 25 m² to achieve uniform levelling and thickness during workable time. Pour the mixed material from mixer or screed pumping machine on to prepared surface of substrate. Spread material equally and level the material up to the maximum thickness of 100 mm using a long steel trowel/straight edge or suitable tools to achieve maximum uniform level and maximum spread. Properly compact material manually by tamping with long flattened float to get rid voids in it. After achieving specified level of surface trowel it with steel trowel to meet uniform and smooth surface. Ideal application temperature is + 5°C to + 35°C. If the application temperature is more than 35°C, ensure to use cool water for mixing.
In case of unbound and floating application, minimum and gradual thickness of screed is to be applied. Follow over all same pattern of application. Protect the material from wind and direct Sunlight during and post installation to prevent moisture loss from applied material.
Cure JK Cement Floor MaxX FS22 for 7 days 2 -3 times daily using clean water. Use polythene sheet to cover the freshly applied screed from sun light and dust.