Erinevate puidukaitsevahendite mõju puidusinetuse vältimiseks männipuidul
| dc.contributor.advisor | Kask, Regino (juhendaja) | |
| dc.contributor.advisor | Drenkhan, Rein (juhendaja) | |
| dc.contributor.author | Kõivik, Hevelin | |
| dc.date.accessioned | 2016-05-19T09:10:51Z | |
| dc.date.available | 2016-05-19T09:10:51Z | |
| dc.date.defensed | 2016-05-31 | |
| dc.date.issued | 2016 | |
| dc.description.abstract | Käesolevas bakalaureusetöös on käsitletud invasiivset seenpatogeeni Diplodia sapinea kui intensiivset ja agressiivset puidusinetuse tekitajat. Seene tekitatud värvimuutus rikub puidu naturaalse ilu ja nõuab töötlemisel lisakulutusi ning vähendab puidust saadavat tulu. Töö uurimusliku osa eesmärgiks on välja selgitada kolme erineva keemilise koostisega puidukaitsevahendi efektiivsus puidusinetuse vastu võitlemisel. Testitavateks puidukaitsevahenditeks valiti ehituspoodidest kättesaadavad tõrjevahendid Mögel-fri, Boracol ja RP Wood. Katse teostamiseks valmistati männipuidust malts- ja lülipuidu katsekehad. Katsekehad töödeldi puidukaitsevahendiga ning asetati Petri tassi, kuhu oli eelnevalt kasvama pandud Diplodia sapinea. Katsetulemuste visuaalsel hindamisel kasutati analüüsitud katsekehade võrdlemist nakatamata kontroll katsekehadega. Värvimuutuste hinnangud tehti nii puidu pinnal kui ka puidu sees katsekehade lõhestamisel. Töö tulemusena selgus, et Boracol puiduimmuti tõrjus puidusinetust nii katsekehade pinnal kui ka sees. Boracoli kasutamisel oli puit sinetunud väliselt vaid üksikutel katsekehadel, kuid puidu sisemusse nakkus ei levinud ühelgi juhul. Mögel-fri puiduimmuti puhul oli sinetus näha katsekeha välispinnal kui puidu sees. RP Wood tõrjevahendi puhul olid tulemused sarnased eelmisega, puidus oli sinetus nähtav nii puidupinnal kui sees. | est |
| dc.description.abstract | The present Bachelor’s Thesis examines the invasive pathological fungus Diplodia sapinea as an intensive and aggressive agent in developing blue stain. Such discoloration destroys the natural beauty of the timber and requires additional costs in processing of wood protection and it reduces the value of the wood. The main goal of the thesis is to examine the efficiency of three different wood protection products, which chemical content varies to protect against blue staining. The wood protection products were selected for the present research as follows Mögelfri, Boracol, and RP Wood. These are available in retail of construction materials. In order to perform the tests for sapwood and roundwood specimens were prepared from pine. After that the specimens were processed with given wood protection products and placed in Petri dishes, where blue stain fungus Diplodia sapinea was already growing. In the evaluation of the results, the infected and healthy specimens were visually compared to each other on the basis of the colour changes. The evaluation was carried out on the surface of the wood as well as by splitting the specimens and examining the inner layers of wood. The research determined that Boracol provided full wood protection against blue stain both on the surface and in the inner layers of wood. Blue stain was found only on surfaces of very few specimens, but in the inner layers of the wood the natural colour was preserved. In the specimens treated with Mögel-fri wood protection product, the blue staining was visible in both the surface of the specimen as well as in the inner layers of wood. In case of the RP Wood treatment, the test results were similar to the previous product and the blue stain infection was visible on the surface of the wood specimens as well as in the inner layers of the wood sample. | eng |
| dc.identifier.uri | http://hdl.handle.net/10492/2576 | |
| dc.subject | bakalaureusetööd | est |
| dc.subject | Diplodia sapinea | |
| dc.subject | RP Wood | |
| dc.subject | Mögel-Fri | |
| dc.subject | Boracol | |
| dc.subject | puidukaitse | est |
| dc.title | Erinevate puidukaitsevahendite mõju puidusinetuse vältimiseks männipuidul | est |
| dc.title.alternative | Efficiency of various wood protection products to avoid blue stain on pine wood | eng |
| dc.type | Bachelor Thesis |
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