Stainless Steel Roadstuds

Available with either a fishtail of chisel shank designed and shaped to prevent twisting after installation. To assist skid resistance a serrated face is also available (Chisel shank only). A superior quality roadstud appropriate for any type of road surface, its durability provides excellent cost effectiveness.

Aluminium Roadstuds
Each stud is cast aluminium alloy conforming to B.S. 1490 : 1988. Supplied with a raised profile to assist skid resistance and fishtails shank. Suitable for most road surfaces – a cheaper short term alternative to the stainless steel type when a compromise on quality is a necessity

ALL STUDS CONFORM TO THE REQUIREMENTS OF B.S. 873 PART 4
SURFACE OF STUD SHANK OF STUD NET
WEIGHT
(APPROX)
METAL HEAD SHAPE NOMINAL
MEASUREMENTS
MM
TYPE SHAPE MM GRAMS
STAINLESS STEEL SQUARE 100 X 100 PLAINFACE CHISEL 70 + 6 700
STAINLESS STEEL SQUARE 100 X 100 PLAINFACE FISHTAIL 70 + 6 700
STAINLESS STEEL SQUARE 100 X 100 SERRATED
FACE
CHISEL 70 + 6 700
ALUMINIUM SQUARE 100 X 100 RAISED PROFILE FISHTAIL 70 + 6 210
Installation
Drill a hole 32mm in diameter to a depth of 80mm. Clear away dust from the interior of hole and surface of the road to be covered by the head of the maker.Note : For concrete surfaces it is necessary to prime the hole and surrounding road surface with bitumen emulsion primer prior to grouting.Fill the hole fully with hot bitumen grout ( specification below) and IMMEDIATELY insert the maker shank and firmly press the head to the road surface taking care that the marker is properly aligned.If necessary, pressing may be supplemented by light tamping with a wood or rubber headed mallet or similar. ON NO ACCOUNT SHOULD THE STUD BE HAMMERED.

The surplus of bitumen will be forced out of the hole by the ingoing shank to form a bed for the head. Any surplus bitumen beyond the area of the marker should be trimmed off.

Specification of Bituminous Grout for Installing Marker

Filled bitumen

Comprising:
Bitumen 60/80 penetration 25-30%
Limestone filter 80 – 90% passing 75 Micron 70-75%
The resultant Mixture should have the following properties:
Penetration at 25°C 23 + 5
Softening point (R & B) 85°C + 5°C

The filled bitumen shall be heated in a bitumen heater capable of holding the charge at a constant temperature of 200°C and filled with a mechanical agitator to ensure the solids are properly dispersed through pouting materials at all times. Thermostatic temperature control is essential. Materials to be applied to stud cavity at pouring temperature of 190 – 200°C

UNDER NO CIRCUMSTANCES SHALL THE GROUT BE HEATED TO OVER 230°C as this result in hardening and loss of elasticity.