NEW DEVICES FOR DIAGNOSTICS OF HISTORICAL STRUCTURES

摘要

Two new devices developed at ITAM AS CR for non-destructive testing of materials, especially from historical structures, are presented below. (1) So called microtube is a semi-automatic portable tool for water absorption measurements. The natural stones, mortars and other porous materials can be measured and it is very useful to assess the efficiency of various hydrophobic treatments used within the restoration also. (2) The diagnostic device for in-situ assessment of timber enables direct determination of conventional compressive strength and modulus of deformation in arbitrary depth along timber profile. The semi-destructive method causes a very gentle damage on the structural members.