Structural stress grading of selected Sarawak timber using non-destructive tests
| dc.contributor.author | Alik Anak Duju | |
| dc.date.accessioned | 2014-10-21T03:23:47Z | |
| dc.date.available | 2014-10-21T03:23:47Z | |
| dc.date.issued | 2009 | |
| dc.description | PhD | en_US |
| dc.description.abstract | A total of seven selected timber species namely, Selangan batu bukit, Menggris, Penyau, Kapur paya, Alan batu, Jongkong and Geronggang were used to study the relationship between the strength properties of full size structural timber. Five non-destructive tests namely, Efrl, Edwe, Edwf, Eapp and Etru were used to predict the physical and strength properties of air-dried full size structural timber. Results indicated that structural timber of Selangan batu bukit exhibited the highest values of Eapp and Etru followed by Menggris, Kapur paya, Penyau, Alan batu, Jongkong and Geronggang. Selangan batu bukit also produced the strongest in term of MOR followed by Menggris, Penyau, Kapur paya, Alan batu, Jongkong and Geronggang. Moderately strong to strong coefficient of correlations was observed between non-destructive moduli of elasticity and MOR on heavy, medium and light hardwood groups. Pooled results of the seven timber species indicated better correlations. Efrl seemed to be the best method compared to the other non-destructive tests in predicting the strength properties. Relationships between density, pilodyn penetration and strength values from small clear specimens with strength properties of structural timber of the seven timber species also indicated strong correlations. It was found that MOEmin values and their grade stresses derived from small clear specimens seemed to be safe values for use for design purposes. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/127 | |
| dc.language.iso | en | en_US |
| dc.subject | Civil Engineering | en_US |
| dc.subject | Structural stress | en_US |
| dc.title | Structural stress grading of selected Sarawak timber using non-destructive tests | en_US |
| dc.type | Thesis | en_US |
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