Water-permeable drainage mixture for paving
Drainage (water-permeable) solution PDR-070 (070+) is intended for the installation of a base layer of standard or increased strength (“PDR-070” – 12 MPa, “PDR-070+” – 30 MPa) when performing masonry with a fastened way of concrete paving slabs, laying ceramic cladding, paving clinker pavers (paving bricks) or curly paving elements (FEM) from concrete and natural stones: sandstone, granite, gabbro, quartzite, labradorite, basalt, porphyry and others.
The bedding layer PDR-070 is advisable to perform when arranging terraces, pavilions, paths and grounds of a country house, roads and grounds of park and city territories, platforms for entrance and parking of cars, as well as for the arrangement of landscapes.
The use of drainage solution PDR-070 for paving stone prevents the fall or subsidence of stones and the overgrowth of seams.
The solution of the bedding layer PDR-070 is resistant to the formation of efflorescence and damage associated with the influence of low temperatures. Specially selected fractions of aggregates allow to lay the bearing layers with a cavity content of 15-20%, which allows to reduce the risk of cracks in the cold, as well as fading in the case of freezing stagnant water.
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|Structure||mixture of sulfate-resistant cement, limestone flour, mineral aggregates, polymeric modifiers|
|Appearance||homogeneous granular mixture dark gray color without impurities|
|Mixing ratio||~ 0.07-0.08 liters of water per 1 kg of dry mix – a mixture of semi-dry consistence or low viscosity|
|Size of filler||up to 10 mm|
|The term mortar suitability||at least 90 minutes|
|Thickness||not less than 20 mm; under a load of transport – 40 mm; when applied to the separation layer – 50 mm|
|Compression strength (after 28 days)||not less than 12.0 MPa for DA-070; not less than 30.0 MPa for DA-070 +|
|Tensile strength in bending (after 28 days)||~ 3.5 MPa|
|Adhesion to the substrate||not less than 0.2 MPa|
|The temperature of application of the mortar mixture||from +30 to +5 ° C|
|Frost-resistance||not less than 75 cycles|
|Permeability||> 1000 l / m² hour for solution × 30 mm layer|
|Operating temperature of the solidified solution||from -50 ºC to +100 ° C.|
|Time of possible technological movement||after 24 hours|
|Stitching||not earlier than 48 hours after complete curing of the bedding layer at 23 ° C and humidity level|
|The ability to perceive the load||light load – 7 days full-time load – 14 days|
|Consumption of dry mixture||~ 14 kg / m² × 10 mm thickness|