Hard Porous Pitch Maintenance: 11. Localised Compaction

Areas that were prone to heavier wear would become more compacted, along with increased material displacement and the forming of hollows.
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Hard Porous Pitch Maintenance: 12. Marking Out

There were several methods which were used for marking out a hard porous area.
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Hard Porous Pitch Maintenance: 13. Irrigation

Irrigation was carried out to maintain a stable surface and to reduce the loss of material by wind blow.
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Hard Porous Pitch Maintenance: 14. Renovation Work

Scarification, which was primarily a metal tine raking implement, was occasionally used to open up the surface profile of the hard porous material, being careful not to disturb the underlying ash blinding layer.
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Hard Porous Pitch Maintenance: 15. Top-dressing

During the summer, especially in exposed sites where the wind continuously blew across a surface, excessive drying of the hard porous material could take place and the finer particles could be more readily blown away.
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Hard Porous Pitch Maintenance: 16. Frost

Frost and very cold weather could freeze the moisture in the profile, with water expanding and forcing apart the hard porous particles, causing varying degrees of surface disruption.
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Hard Porous Pitch Maintenance: 17. Salt

The application of salt to a hard porous surface was sometimes used to help with moisture retention during the drier summer months and to reduce the effects, to some degree, of frosts over wintertime, although its effectiveness could be quite variable during the winter.
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Hard Porous Pitch Maintenance: 18. References

Seven documents as well as the content creators experience have been referred to for the creation of this entry.
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