Construct · 1 fields · 1 citations

ravelling: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a pavement-surface distress Nearest construct by meaning·not indexed
ravelling1 CONSTRUCTRavellingDU & LI · AGGREGATE LOSS

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Pavement engineering

The surface sheds its stones as the glue lets go

In pavement engineering, ravelling is the progressive dislodgement and loss of aggregate particles from the surface of an asphalt layer, which works its way downward as the binder loses its hold under traffic abrasion, weathering, and ageing. Du and Li's study of the ravelling of porous asphalt links the distress to weak adhesion at the binder-aggregate interface and to binder hardening, the very properties that make an open, high-void mixture prone to shedding stones. The referent is a surface-durability distress measured by how much aggregate the surface sheds, leaving it rough, porous, and eventually potholed.[1]

Unit
Mass of aggregate lost (e.g. from an abrasion test) or rated surface extent and severity
Recovery means
Reversed only by a surface treatment, seal, or overlay; the lost aggregate and binder adhesion do not return on their own
Measured by
Quantified by particle-loss abrasion tests such as the Cantabro test and by field surveys rating the extent and severity of surface aggregate loss

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Nearby constructs

abrasion3 fields · 3 citationsjingle · one word, three constructsadhesion4 fields · 4 citationsjingle · one word, four constructs

References

  1. Du, S., & Li, S. (2011). The raveling characteristic of porous asphalt mixture. In ICTE 2011 (pp. 1880–1885). American Society of Civil Engineers. https://doi.org/10.1061/41184(419)310

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