利用薄片废料生产高附加值结构木材的潜力。分类和视觉分级

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Wood Research Pub Date : 2023-06-28 DOI:10.37763/wr.1336-4561/68.3.532546

Dénes Horváth, S. Fehér, M. Báder

{"title":"利用薄片废料生产高附加值结构木材的潜力。分类和视觉分级","authors":"Dénes Horváth, S. Fehér, M. Báder","doi":"10.37763/wr.1336-4561/68.3.532546","DOIUrl":null,"url":null,"abstract":"This study is the continuation of the first part (Horváth et al. 2023), in which density, bending strength and modulus of elasticity of 100 oak lamellae generated as small-sized production waste were investigated. In this part of the study series, the classification of our sample set is carried out according to the EN 338. A visual pre-grading is presented, to remove the worst specimens and achieve a better final result and a standardized visual grading is also shown. Our results are compared with literature values of clear specimens as well. Amount of 80% of the specimens were found to be suitable for further structural use. The total sample set is classified in strength class D35 (average density 712.6±72.5 kg/m3; average MoRadj 65.4±16.2 MPa; average MoEadj 13.4±3.1 GPa), while the visually pre-graded part with better average test results is classified in strength class D45. Industrial wood residues contain a sufficiently high proportion of elements for further processing, so that after sorting it can be used as raw material for glued-laminated load-bearing timber.","PeriodicalId":23786,"journal":{"name":"Wood Research","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"THE POTENTIAL OF PRODUCING HIGH ADDED VALUE STRUCTURAL TIMBER FROM LAMELLAE WASTE. CLASSIFICATION AND VISUAL GRADING\",\"authors\":\"Dénes Horváth, S. Fehér, M. Báder\",\"doi\":\"10.37763/wr.1336-4561/68.3.532546\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study is the continuation of the first part (Horváth et al. 2023), in which density, bending strength and modulus of elasticity of 100 oak lamellae generated as small-sized production waste were investigated. In this part of the study series, the classification of our sample set is carried out according to the EN 338. A visual pre-grading is presented, to remove the worst specimens and achieve a better final result and a standardized visual grading is also shown. Our results are compared with literature values of clear specimens as well. Amount of 80% of the specimens were found to be suitable for further structural use. The total sample set is classified in strength class D35 (average density 712.6±72.5 kg/m3; average MoRadj 65.4±16.2 MPa; average MoEadj 13.4±3.1 GPa), while the visually pre-graded part with better average test results is classified in strength class D45. Industrial wood residues contain a sufficiently high proportion of elements for further processing, so that after sorting it can be used as raw material for glued-laminated load-bearing timber.\",\"PeriodicalId\":23786,\"journal\":{\"name\":\"Wood Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2023-06-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Wood Research\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.37763/wr.1336-4561/68.3.532546\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wood Research","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.37763/wr.1336-4561/68.3.532546","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}

引用次数: 0

摘要

这项研究是第一部分（Horváth等人，2023）的延续，其中研究了100个作为小型生产废物产生的橡木薄片的密度、弯曲强度和弹性模量。在本系列研究的这一部分中，我们的样本集是根据EN 338进行分类的。提出了一种视觉预分级，以去除最差的样本并获得更好的最终结果，还显示了标准化的视觉分级。我们的结果也与透明标本的文献值进行了比较。发现80%的试样适合进一步的结构用途。总样本组被归类为强度等级D35（平均密度712.6±72.5 kg/m3；平均MoRadj 65.4±16.2 MPa；平均MoEadj 13.4±3.1 GPa），而平均测试结果较好的视觉预分级部分被归类为实力等级D45。工业木材残留物含有足够高比例的元素，用于进一步加工，因此在分类后，它可以用作胶合层压承重木材的原材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

THE POTENTIAL OF PRODUCING HIGH ADDED VALUE STRUCTURAL TIMBER FROM LAMELLAE WASTE. CLASSIFICATION AND VISUAL GRADING

This study is the continuation of the first part (Horváth et al. 2023), in which density, bending strength and modulus of elasticity of 100 oak lamellae generated as small-sized production waste were investigated. In this part of the study series, the classification of our sample set is carried out according to the EN 338. A visual pre-grading is presented, to remove the worst specimens and achieve a better final result and a standardized visual grading is also shown. Our results are compared with literature values of clear specimens as well. Amount of 80% of the specimens were found to be suitable for further structural use. The total sample set is classified in strength class D35 (average density 712.6±72.5 kg/m3; average MoRadj 65.4±16.2 MPa; average MoEadj 13.4±3.1 GPa), while the visually pre-graded part with better average test results is classified in strength class D45. Industrial wood residues contain a sufficiently high proportion of elements for further processing, so that after sorting it can be used as raw material for glued-laminated load-bearing timber.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Wood Research 工程技术-材料科学：纸与木材

CiteScore

2.40

自引率

15.40%

发文量

审稿时长

5.4 months

期刊介绍： Wood Research publishes original papers aimed at recent advances in all branches of wood science (biology, chemistry, wood physics and mechanics, mechanical and chemical processing etc.). Submission of the manuscript implies that it has not been published before and it is not under consideration for publication elsewhere.