Technical Specification

TECHNICAL SPECIFICATION OF MARMOX MATERIAL.

PROPERTY MEASUREMENT METHOD VALUES UNIT
Density DIN 53472 2.45 (±5%) g/cm3
Bending Strength DIN 1164 300 (±5%) kg/cm2
Compressive Strength DIN 1164 1150 (±5%) kg/cm3
Tensile Strength DIN 53455 150 (±5%) kg/cm2
Modulus of Elasticity DIN 53457 2.5 x 105 kg/cm2
Surface Hardness DIN 53505 ≤ 80  
Linear Thermal Coefficient of Expansion VDE 0304/1 1.5 x 10-5 / 1° C  
Water Absorption DIN 53495 greater than 0.1%  
Chemical Resistance   Highly Resistant  
Environmental Aspects   Environmentally Friendly  
Fire Resistance DIN 4102 Fire Resistant (A2)  

 
CLASSES OF MARAMOX MANHOLE COVERS.

GROUP MIN. CLASS PLACE OF INSTALLATION
1 A-15 Areas which can only be used by pedestrians and pedal cyclists
2 B-125 Footways, pedestrian areas and comparable areas,c ar parks or car parking decks
3 C-250 For gully tops installed in the area of curbside channels of roads which when measured from the
curbside, extends a maximum of 0.5m into the c arriage way and a maximum of 0.2m into the footway
4 D-400 Carriage ways of roads (including pedestrian streets), hard shoulders and parking areas,
for all types of road vehicles
5 E-600 Areas imposing high wheel roads, e.g. decks,
aircraft
6 F-900 Areas imposing particularly high wheel loads,
e.g. aircraft pavements