By John Ashurst
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Extra info for Conservation of ruins
Open joints and wall caps can be consolidated with compatible lime mortar, often a putty lime with ceramic powder. Water collecting hollows in the mosaic floor can be covered with geo-textile membrane and levelled with sand. Walls which are leaning or have inadequate support can be buttressed with sand bags. Decisions need to be made about who carries out this work. The archaeologists may need to carry out immediate emergency support works. Full conservation work needs to be carried out by trained conservators.
Tradition has included amongst these trophies the ropes used by the Persians to lash together their bridge of ships across the Hellespont. Seven monolithic Ionic columns, some original polygonal masonry and the stylobate into which the commemorative inscription was cut still survive. (Photo Catherine Woolfitt) There are many facets to the significance of ruin sites which are explored in the book. One of these is the association of sites with personalities and events of history, of which the above are examples.
Where a group of trees exist, or are intended, then this needs to be increased by 50 per cent, since the tree roots are in competition with each other and reach further in their search for moisture.