I'll challenge you to debate on everything from dog licenses to patent paving materials.

Others - particularly the children and the elderly - hammer small stones into smaller ones to be sold as paving material.

There is also a wide range of paving materials that can create a very decorative effect.

This makes sandstone a common building and paving material.

Like all other paving materials gravel depends on its foundations for its efficiency.

For example, the park service now tries to use paving materials - including asphalt - with recycled contents.

Later, tarmac and concrete became the dominant paving material.

A few of the newer lots are surfaced with permeable paving materials.

These steps can be built directly on the earth, bedding the paving materials in concrete to bind them together.

The novelty at the time was use of xilolit plates as a paving material.