Shear Performance of PUR Adhesive in Cross Laminating of Red Pine
Cross laminated timber (CLT) has been an rising issue as a promising building material replacing steel-concrete in mid story rise construction. But, there was no specific standard for CLT because it had been developed in industrial section. Recently, new draft for requirements of CLT was proposed by...
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Published in | Journal of the Korean Wood Science and Technology Vol. 41; no. 2; pp. 158 - 163 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
한국목재공학회
25.03.2013
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Subjects | |
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Abstract | Cross laminated timber (CLT) has been an rising issue as a promising building material replacing steel-concrete in mid story rise construction. But, there was no specific standard for CLT because it had been developed in industrial section. Recently, new draft for requirements of CLT was proposed by EN which suggested to evaluate the performance of adhesive in CLT by the same method as glulam. But, it has been reported that shear performance of cross laminated timber is governed by rolling shear. Therefore, block shear tests were carried out to compare parallel to grain laminating and cross laminating using commercial one component PUR (Poly urethane resin). The result showed that the current glulam standard for evaluating bonding performance is not appropriate for CLT. Beacause shear strength of cross laminating decreased to 1/3 of parallel to grain laminating and this strength was representing shear performance of wood itself not the bond. However, cross laminating showed no significant effect on wood failure.Thus, wood failure can be used as a requirement of CLT bonding. Based on the results, cross laminating effect should be included when evaluating adhesive performance of CLT correctly and should be considered as an important factor. KCI Citation Count: 5 |
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AbstractList | Cross laminated timber (CLT) has been an rising issue as a promising building material replacing steel-concrete in mid story rise construction. But, there was no specific standard for CLT because it had been developed in industrial section. Recently, new draft for requirements of CLT was proposed by EN which suggested to evaluate the performance of adhesive in CLT by the same method as glulam. But, it has been reported that shear performance of cross laminated timber is governed by rolling shear. Therefore, block shear tests were carried out to compare parallel to grain laminating and cross laminating using commercial one component PUR (Poly urethane resin). The result showed that the current glulam standard for evaluating bonding performance is not appropriate for CLT. Beacause shear strength of cross laminating decreased to 1/3 of parallel to grain laminating and this strength was representing shear performance of wood itself not the bond. However, cross laminating showed no significant effect on wood failure.Thus, wood failure can be used as a requirement of CLT bonding. Based on the results, cross laminating effect should be included when evaluating adhesive performance of CLT correctly and should be considered as an important factor. KCI Citation Count: 5 |
Author | Oh, Jung-Kwon Kim, Hyung-Kun Lee, Jun-Jae Jeong, Gi-Young Yeo, Hwan-Myeong |
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CitedBy_id | crossref_primary_10_1061__ASCE_MT_1943_5533_0001203 crossref_primary_10_1016_j_conbuildmat_2016_12_027 crossref_primary_10_22382_wfs_2019_034 crossref_primary_10_5658_WOOD_2016_44_4_607 crossref_primary_10_1016_j_conbuildmat_2019_03_240 crossref_primary_10_1016_j_conbuildmat_2019_03_293 crossref_primary_10_1080_17480272_2021_1955295 crossref_primary_10_3390_f14091916 crossref_primary_10_5658_WOOD_2017_45_6_728 crossref_primary_10_1515_hf_2017_0008 crossref_primary_10_1007_s00107_023_01981_0 crossref_primary_10_5658_WOOD_2022_50_1_1 crossref_primary_10_5658_WOOD_2021_49_4_336 |
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Title | Shear Performance of PUR Adhesive in Cross Laminating of Red Pine |
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