Early and mid life skid resistance

David Woodward, Alan Woodside, Joe Jellie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Safety applies to all stages of highway or airfield construction i.e. from initial design, selection of materials to use of the surface by the user. In the UK, criteria such as noise, negative texture, spray generation, layer thickness, availability and cost of limited sources of higher PSV aggregate have resulted in a shift towards thinner, smoother and quieter surfacings. These materials typically use a modified bitumen or have thicker coatings of bitumen to hold the aggregate particles together. The authors recognised that the early life safety of these materials needed consideration given that bitumen has poor wet skid resistance. This paper considers the development of skid resistance for an SMA surface using high PSV greywacke aggregate and polymer-modified bitumen. This surface has been periodically measured using a GripTester to determine how skid resistance has developed from early life through to mid life. The findings show how this is different from a conventional chip seal or positive textured asphalt surface. A new theory is proposed that explains how skid resistance develops for these types of surfacing.
LanguageEnglish
Title of host publicationUnknown Host Publication
Number of pages10
Publication statusPublished - 2005
EventInternational Surface Friction Conference - Roads and Runways - Christchurch, New Zealand
Duration: 1 Jan 2005 → …

Conference

ConferenceInternational Surface Friction Conference - Roads and Runways
Period1/01/05 → …

Fingerprint

Skid resistance
Hard facing
Asphalt
Seals
Textures
Availability
Coatings
Polymers
Costs

Cite this

Woodward, D., Woodside, A., & Jellie, J. (2005). Early and mid life skid resistance. In Unknown Host Publication
Woodward, David ; Woodside, Alan ; Jellie, Joe. / Early and mid life skid resistance. Unknown Host Publication. 2005.
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abstract = "Safety applies to all stages of highway or airfield construction i.e. from initial design, selection of materials to use of the surface by the user. In the UK, criteria such as noise, negative texture, spray generation, layer thickness, availability and cost of limited sources of higher PSV aggregate have resulted in a shift towards thinner, smoother and quieter surfacings. These materials typically use a modified bitumen or have thicker coatings of bitumen to hold the aggregate particles together. The authors recognised that the early life safety of these materials needed consideration given that bitumen has poor wet skid resistance. This paper considers the development of skid resistance for an SMA surface using high PSV greywacke aggregate and polymer-modified bitumen. This surface has been periodically measured using a GripTester to determine how skid resistance has developed from early life through to mid life. The findings show how this is different from a conventional chip seal or positive textured asphalt surface. A new theory is proposed that explains how skid resistance develops for these types of surfacing.",
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Woodward, D, Woodside, A & Jellie, J 2005, Early and mid life skid resistance. in Unknown Host Publication. International Surface Friction Conference - Roads and Runways, 1/01/05.

Early and mid life skid resistance. / Woodward, David; Woodside, Alan; Jellie, Joe.

Unknown Host Publication. 2005.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Early and mid life skid resistance

AU - Woodward, David

AU - Woodside, Alan

AU - Jellie, Joe

PY - 2005

Y1 - 2005

N2 - Safety applies to all stages of highway or airfield construction i.e. from initial design, selection of materials to use of the surface by the user. In the UK, criteria such as noise, negative texture, spray generation, layer thickness, availability and cost of limited sources of higher PSV aggregate have resulted in a shift towards thinner, smoother and quieter surfacings. These materials typically use a modified bitumen or have thicker coatings of bitumen to hold the aggregate particles together. The authors recognised that the early life safety of these materials needed consideration given that bitumen has poor wet skid resistance. This paper considers the development of skid resistance for an SMA surface using high PSV greywacke aggregate and polymer-modified bitumen. This surface has been periodically measured using a GripTester to determine how skid resistance has developed from early life through to mid life. The findings show how this is different from a conventional chip seal or positive textured asphalt surface. A new theory is proposed that explains how skid resistance develops for these types of surfacing.

AB - Safety applies to all stages of highway or airfield construction i.e. from initial design, selection of materials to use of the surface by the user. In the UK, criteria such as noise, negative texture, spray generation, layer thickness, availability and cost of limited sources of higher PSV aggregate have resulted in a shift towards thinner, smoother and quieter surfacings. These materials typically use a modified bitumen or have thicker coatings of bitumen to hold the aggregate particles together. The authors recognised that the early life safety of these materials needed consideration given that bitumen has poor wet skid resistance. This paper considers the development of skid resistance for an SMA surface using high PSV greywacke aggregate and polymer-modified bitumen. This surface has been periodically measured using a GripTester to determine how skid resistance has developed from early life through to mid life. The findings show how this is different from a conventional chip seal or positive textured asphalt surface. A new theory is proposed that explains how skid resistance develops for these types of surfacing.

M3 - Conference contribution

BT - Unknown Host Publication

ER -

Woodward D, Woodside A, Jellie J. Early and mid life skid resistance. In Unknown Host Publication. 2005