000002366 001__ 2366
000002366 005__ 20141118153435.0
000002366 04107 $$acze
000002366 046__ $$k2013-09-11
000002366 100__ $$aSiedel, H.
000002366 24500 $$aHistoric renders and their weathering at the temple Wat Mahathat, UNESCO World Heritage Site of Ayutthaya, Thailand

000002366 24630 $$n3.$$pProceedings of the 3rd Historic Mortars Conference HMC13
000002366 260__ $$bGlasgow : University of the West of Scotland, 2013
000002366 506__ $$arestricted
000002366 520__ $$2eng$$aInvestigations of renders on buildings of the temple Wat Mahathat in Ayutthaya showed that two different types of mortars have been applied. The original mortars from the period before 1767 are lime mortars, whereas hydraulic mortars were obviously used for restoration and stabilisation of the ruins in the 20 th century. The use of organic additives like starch from boiled rice for historic mortar production is suspected, but could not be proved by analytical means. The analysis of probable additives is made more difficult due to microbiological activity in tropical climate which might have lead to enzymatical decomposition of the primary organic compounds. The porosity and the hardness of renders, controlled in-situ by easily applicable, non- or less-destructive investigations like Karsten tube measurements and drilling resistance, reflect a wide range of different weathering states. Therefore, appropriate restoration measures must be planned in detail for every part of the buildings; an overall treatment with water repellents cannot be recommended. The formation of peculiar, alveolar-like structures on some renders is caused by hardening of the surfaces along cracks due to intensified transport of dissolved components.

000002366 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002366 653__ $$arendered brickwork, lime mortars, hydraulic mortars, organic additives, alveolar weathering

000002366 7112_ $$a3rd Historic Mortars Conference$$cGlasgow, Scotland (UK)$$d2013-09-11 / 2013-09-14$$gHMC13
000002366 720__ $$aSiedel, H.$$iUllrich, B.$$iWendler, E.
000002366 8560_ $$ffischerc@itam.cas.cz
000002366 8564_ $$s805316$$uhttps://invenio.itam.cas.cz/record/2366/files/Siedel - Historic renders and their weathering at the temple Wat Mahathat, UNESCO World Heritage Site of Ayutthaya, Thailand.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002366 962__ $$r2223
000002366 980__ $$aPAPER