The Use of Woody Constructions for Strip Roads Based on the Durability of Used Woods
Authors
O. Iwakawa
Shizuoka University, Shizuoka City, Japan
Abstract
This research discusses the possibility of using woody constructions, for example retaining walls, based on the durability of used wood for strip roads under long-term use. Used woods having a reliable record were adopted as samples. Their durability was compared with that of fresh wood (as standard samples) by means of Brinnel hardness, compression strength and bending strength. Visually, three layers were seen from the dug-out round wood cross-section: a decayed sapwood, discoloured sapwood and sound heartwood. From the results of three tests it was confirmed that the heartwood was still sound in spite of 17 years of use.
