000002051 001__ 2051
000002051 005__ 20141118153444.0
000002051 04107 $$acze
000002051 046__ $$k2014-05-20
000002051 100__ $$aSlížková, Zuzana
000002051 24500 $$aTesting of Treatment Effects of Nano-sols on Selected Porous Historic Materials

000002051 24630 $$n$$pProceedings of the International Conference on Conservation of Stone and Earthen Architectural Heritage
000002051 260__ $$bThe Graduate School of Cultural Heritage, Kongju National University, Republic of Korea
000002051 506__ $$arestricted
000002051 520__ $$2eng$$aEfficient nano materials for consolidation, cleaning and hydrophobization of porous historic materials have been developed in several European and national research projects. The authors have developed some new and have enhanced some existing experimental techniques for testing the effects of such conservation agents on historic materials in laboratory as well as in situ. The contribution presents in a comparative way namely consolidation effects of commercially available nano lime product CaLoSiL containing suspension of calcium hydroxide nano particles in different alcohols on porous stone or lime mortar. The resulting effects of these products on selected types of substrates have been assessed using specially developed non-standard testing methods which accommodated testing of unknown penetration abilities and the need to measure very subtle strengthening effects in laboratory, as well as on site. The innovative methods enabled to carry out a comparative study of the effect of various consolidation agents, taking advantage of destructive tests on purposely designed thin walled mortar elements, compacted sand or dry crashed stone specimens, small size stone specimens and thin plates. The influence of the quality of the substrate is well visible and helps to select "standard" materials for such comparative testing. Efficiency of these new nano materials has been measured by relation to effects of lime or barium water which were recommended consolidating agents in recent decades. Further, a non-automatic micro-tube device which measures water uptake have been devised for in situ testing of historic plaster. The poster further demonstrates potential of such non-traditional and affordable methods for approximate assessment of mechanical characteristics from non-mechanical data.

000002051 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002051 653__ $$aPorous historic materials, Nano lime, Consolidation, Non-standard testing

000002051 7112_ $$aInternational Conference on Conservation of Stone and Earthen Architectural Heritage$$cKongju (KR)$$d2014-05-20$$gICOMOS-ISCS 2014
000002051 720__ $$aSlížková, Zuzana$$iDrdácký, Miloš
000002051 8560_ $$ffischerc@itam.cas.cz
000002051 8564_ $$s935171$$uhttps://invenio.itam.cas.cz/record/2051/files/p44.pdf$$y
             Original version of the author's contribution as presented on CD, 289.
            
000002051 962__ $$r2005
000002051 980__ $$aPAPER