DENSIPHALT
Description Densiphalt®
is a semi-flexible joint-free topping, well suited for use in heavily trafficked areas, and where flexibility, durability and wear resistance are high priorities. Densiphalt® consists of an opengraded asphalt, with the voids filled with a high-strength cement-based mortar. Densiphalt® is applied as a 30-100 mm layer, and is laid on an adequate base course such as asphalt, lean-mix concrete or standard concrete. Densiphalt® can be coloured in a variety of shades.
Specification
The base course is sealed with bitumen emulsion. The open-graded asphalt is laid (special recipe). The dry Densiphalt® mortar is mixed with water in a special continuous flow mixer or batch mixer. The open-graded asphalt is filled with Densiphalt® mortar. The surface is finished with a rubber scraper. Finally, the surface is sealed with AQUASEAL or by sand saturation.
Densiphalt properties
Property
Standard
Value
Compressive
strength (MPa)
BS 1881
Value
Dynamic E
modulus (MPa)
DWW
94530
8.000-12.000
Wear resistance
(cm3/50 cm2)
DIN 52 108
7-8
Freeze-thaw
resistance
SS 137244
Very good
Impermeability
DIN 18130
Non-permeabel
Slip resistance
BS 812: 1989
50-60; 80 SRT
Coefficient of
expansion
EN 1770
∝m=12.5·10-6/°C
Electrical
conductivity (Ω)
DIN 51953
approx. 106
approx. 107
Compressive
strength (MPa)
EN 12190
Flexural
strength (MPa)
EN 196
Density (kg/m3)
EN 12190
2200-2250
Setting time
(hours)
EN 196-3
7-9
Cr6+ (%)
< 0.0002