HTS Thermoplastic High Friction Surfacing Systems

 

Description

 

HTS High Friction Surfacing is a hot screed thermoplastic skid resistant treatment consisting of a polymer modified resin binder with encapsulated high PSV calcined bauxite and mineral extenders.  The system can be applied all year round and is suitable for application on concrete and asphalt road surfaces with a texture depth of between 0.5 - 3mm.  HTS High Friction Surfacing provides a textured and durable matrix, typically 3 - 5mm thick and is available in Chinese or Guyanan grades which can be pigmented for specialist applications.

 

Uses

 

HTS High Friction Surfacing is suitable for use on sharp bends, approaches to roundabouts, pedestrian crossings, road junctions and other hazard sites

 

Approvals

 

BBA/HAPAS Roads and Bridges Agrement Certificate No 99/H029

 

Physical Properties

 

Relative Density

2.00 ± 0.05

Installation Temperature Range

0° - 35°C

Application Temperature

190 ± 10° C

Maximum Safe Heating Temperature

230° C

 

Product Specification

 

Binder

The binder is a modified rosin ester, mineral oil, SBS and acetate co-polymer blend to comply with specification requirement given in Table 1.

 

Table 1

Property

Test Method

Specification

Softening Point °C

BS 2000 Part 58: 1988

90 ± 5° C

Flow Resistance

BS 2499 Part   3: 1993

[ 3mm

Flexibility

ASTM D3583 (Mod)

No surface cracking or crazing

 

Aggregate

The encapsulated coarse aggregate is Chinese or Guyanan Bauxite with a minimum PSV of 70 and AAV of 4.  The grading of the incorporated aggregate and extender shall conform to the requirements of Table 2.

 

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HTS Thermoplastic High Friction Surfacing Systems

 

Table 2

Sieve Size

5mm

3.35mm

2.36mm

1.18mm

600um

212um

75um

% Passing

100

m 95

60 - 80

20-40

20 - 40

10 - 25

5 - 20

 

Application

 

The material shall be applied transversely across the road surface using a screed box with a suitable trailing edge allowing the encapsulated aggregate to be evenly distributed.  On an average textured surface (TD = 1.5), the material shall be applied at a rate of 10.5 - 11.5kg/m² (85 - 95m²/tonne) and finished to give an even, durable and textured surface free of lumps and other blemishes. 

 

Aftercare

 

The finished surfacing can be trafficked once the installation has reached the ambient temperature of the adjacent road surface

 

Material Performance

 

The properties of the installed HTS High Friction Surfacing shall conform to the requirements given in Table 3.

 

Table 3

 

Parameter

Typical Value

BBA/HAPAS Requirement

Skidding Resistance

73

m 65

Texture Depth

1.2 mm

m 1.0 mm

Tensile Adhesion

0.6N/mm

   m 0.5N/mm

Erosion Index

[ 3

[ 15

 

Further Information

 

Additional information is available in the product Safety Data Sheet and Installation Method Statement or by contacting the following:  

 

Walker Minerals Limited                                               HTS Consultancy

Outland Head Quarry                                                   18 Furness Avenue

Bradwell                                                                       Simonstone

Hope Valley                                                                 Ribble Valley

Derbyshire S33 9JP                                                      Lancashire BB12 7SU

Tel:       01433 - 621600                                              Tel:       01282 - 771260          

Fax:      01433 - 621592                                              Fax:      01282 - 771260

e-mail: sales@portawayminerals.f9.co.uk                      e-mail: pliles@hts.u-net.com

 

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