Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials
The paper describes a method of structural repair to damaged elements of protected timber houses. Emphasis is laid on minimum intervention in the valuable material that needs to be preserved to the maximum possible extent, especially without larger interventions in the visible parts. The designs wil...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/2/550 |
| _version_ | 1797621921064419328 |
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| author | Michal Kloiber Dita Frankeová Zuzana Slížková Jiří Kunecký |
| author_facet | Michal Kloiber Dita Frankeová Zuzana Slížková Jiří Kunecký |
| author_sort | Michal Kloiber |
| collection | DOAJ |
| description | The paper describes a method of structural repair to damaged elements of protected timber houses. Emphasis is laid on minimum intervention in the valuable material that needs to be preserved to the maximum possible extent, especially without larger interventions in the visible parts. The designs will find application in situations where it is not possible or appropriate to use common building methods, and it is necessary to carefully fill out or substitute bio-damaged parts of structural elements. The material for the production of fillings of structural elements corresponds to the originally used wood species; in the case of contact with the ground, oak is the choice due to its durability. Small caverns are filled with earth-based mortar with lime, casein, and chopped wheat straw. Such mortar mixtures were subjected to laboratory tests, which have shown that earth-based mortar (E) and earth mortar with lime putty modification (EL) have very similar physical, mechanical, and hygric properties. The properties significantly changed when curd cheese/casein was added to fresh mortar (ELC): the mechanical strength of hardened mortar increased substantially, and the diffusion of water vapours dropped, which is very beneficial for careful repairs of timber elements. The combination of timber and mortar filling provides a suitable means of repairing locally decayed timber members. |
| first_indexed | 2024-03-11T09:02:53Z |
| format | Article |
| id | doaj.art-470f8d1d2db84e2bb57549ba56315252 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T09:02:53Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-470f8d1d2db84e2bb57549ba563152522023-11-16T19:34:19ZengMDPI AGBuildings2075-53092023-02-0113255010.3390/buildings13020550Repair of Old Timber Log House Using Cavity Filling with Compatible Natural MaterialsMichal Kloiber0Dita Frankeová1Zuzana Slížková2Jiří Kunecký3Academy of Sciences of Czech Republic, Theoretical and Applied Mechanics, v. v. i., 19000 Prague, Czech RepublicAcademy of Sciences of Czech Republic, Theoretical and Applied Mechanics, v. v. i., 19000 Prague, Czech RepublicAcademy of Sciences of Czech Republic, Theoretical and Applied Mechanics, v. v. i., 19000 Prague, Czech RepublicAcademy of Sciences of Czech Republic, Theoretical and Applied Mechanics, v. v. i., 19000 Prague, Czech RepublicThe paper describes a method of structural repair to damaged elements of protected timber houses. Emphasis is laid on minimum intervention in the valuable material that needs to be preserved to the maximum possible extent, especially without larger interventions in the visible parts. The designs will find application in situations where it is not possible or appropriate to use common building methods, and it is necessary to carefully fill out or substitute bio-damaged parts of structural elements. The material for the production of fillings of structural elements corresponds to the originally used wood species; in the case of contact with the ground, oak is the choice due to its durability. Small caverns are filled with earth-based mortar with lime, casein, and chopped wheat straw. Such mortar mixtures were subjected to laboratory tests, which have shown that earth-based mortar (E) and earth mortar with lime putty modification (EL) have very similar physical, mechanical, and hygric properties. The properties significantly changed when curd cheese/casein was added to fresh mortar (ELC): the mechanical strength of hardened mortar increased substantially, and the diffusion of water vapours dropped, which is very beneficial for careful repairs of timber elements. The combination of timber and mortar filling provides a suitable means of repairing locally decayed timber members.https://www.mdpi.com/2075-5309/13/2/550historical timber structuresheritage conservationrepairtimberearth-based mortarlime |
| spellingShingle | Michal Kloiber Dita Frankeová Zuzana Slížková Jiří Kunecký Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials Buildings historical timber structures heritage conservation repair timber earth-based mortar lime |
| title | Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials |
| title_full | Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials |
| title_fullStr | Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials |
| title_full_unstemmed | Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials |
| title_short | Repair of Old Timber Log House Using Cavity Filling with Compatible Natural Materials |
| title_sort | repair of old timber log house using cavity filling with compatible natural materials |
| topic | historical timber structures heritage conservation repair timber earth-based mortar lime |
| url | https://www.mdpi.com/2075-5309/13/2/550 |
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