To determine the bearing capacity and deflection of subgrade and subbase of roads.
Standards NF P94-117-1
To determine the bearing capacity and deflection of subgrade and subbase of roads. The apparatus comprises:
Total weight approx.: 100 kg
Note: all the above parts can be purchased individually
The apparatus is used to measure the deflection of pavements under a moving wheel load.
Standards AASHTO T256
The apparatus is used to measure the deflection of flexible pavements under the axion of moving wheel loads.
In operation the beam is placed between the tyres of the test vehicle and in contact with the pavement. The deflection is measured as the vehicle passes over the test area.
The probe is 2440 mm long and the back extension is 1220 mm.
Manufactured in aluminium and chrome finished metals.
Used to measure irregularities in road pavement.
Standards EN 13036-7
Used to measure irregularities in road pavement. Made from aluminium alloy, 3 m length. Complete with two steel wedges. Wooden carrying case is not included and must be ordered separately. See accessories.
For determining the rate of spread of binder on the surface of the road.
Standards EN 12272-1
This simple equipment is for determining the rate of spread of binder on the surface of the road. The equipment consists of a metal 300 mm square tray, which can be lifted by means of four chains. The chains are attached to a balance and the rate of spread can be assessed by a digital balance.
To measure the macro-texture of an asphalt pavement.
Standards EN 13036-1 ASTM E965 NF P98 216-1
This test is performed spreading a measured volume of glass spheres (ASTM and EN) or fine sand (NF) into a circular patch on the road surface and filling the surface depressions to the level of the peaks. The apparatus comprises the following parts:
Weight approx.: 3 kg
To test and assess the flexibility property and impermeability of asphalt mixes in dams.
The scope of Van Asbeck apparatus is to test and assess the flexibility property and related impermeability to water under pressure of hydraulic bituminous mixes to be used to cover the water storage of dams.
The apparatus consists essentially of a steel cylindrical cell divided in two sections: the
upper part that is the under pressure water container and the lower part consisting of a
cone with opening in the lower end. These two parts are clamped together by two flanges
(upper and lower) with the interposition of a 50 cm ID steel ring which contains the
compacted bituminous sample. The lower conical part has to be filled by 2-2.5 mm dia. of
glass spheres which support the compacted 50 cm diameter slab when it is subjected to 3
bar water pressure. The valve of the lower conical end is then opened and the glass
spheres are removed at a rate of 250 g every 15 minutes to a total of 5 kg, thus forming a
hollow space under the slab to a maximum depth of 5 cm. The water pressure is then
maintained for another 5 hours. The asphalt slab should remain impervious during this
flexibility test, even is fine surface cracks develop in the bottom of the slab.
The apparatus includes:
Overall dimensions: (dia.x h) 700×1000 mm
Weight approx.: 100 kg
The apparatus require compressed air. For a suitable air compressor see accessories.
