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It explains why CLT has expanded over the last two decades, contrasts softwood-dominant production with growing hardwood interest, and summarizes key manufacturing requirements. It details raw material availability and grading, physical and mechanical behavior, bonding and adhesive constraints, factory production control, environmental conditions, structural testing outcomes, and resulting recommendations for further research.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/tulipwood-clt-properties-and-manufacturing-requirements-2019/268615/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/tulipwood-clt-properties-and-manufacturing-requirements-2019/268615.png","ImageObject",300,407,{"name":92,"@type":93},"Eden","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","2026-09-15",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",16,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the document’s purpose regarding tulipwood CLT?","Question",{"text":113,"@type":114},"It introduces the working properties of American tulipwood for potential use in niche CLT projects, focusing on both mechanical performance and manufacturing requirements.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How does the document describe CLT and why it has grown in use?",{"text":118,"@type":114},"It presents CLT as an emerging prefabrication-oriented construction material and attributes growth to structural, environmental, and prefabrication advantages.",{"name":120,"@type":111,"acceptedAnswer":121},"Which manufacturing topics are covered for using tulipwood in CLT production?",{"text":122,"@type":114},"It covers supply chain and procurement, pre-processing and grading, cutting and finger jointing, priming and application, adhesive and moisture requirements, pressing, further processing, storage after pressing, and factory production control.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},268615,1789433371,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":56,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":130,"read_time":144,"preview_page_count":4},1374391974468,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","TULIPWOOD CLT PROPERTIES AND MANUFACTURING REQUIREMENTS  \nPublished September 2019  \nCONTENTS  \nExecutive Summary ...................................................... 3  \nIntroduction & Background ......................................... 3  \nPioneering tulipwood CLT ........................................... 4  \nEndless Stair, 2013 ..................................................... 4  \nThe Smile, 2016 ........................................................... 5  \nMaggie’s Centre, 2017.............................................. 6  \nMultiPly, 2018 ................................................................ 7  \nAmerican tulipwood........................................................ 9  \nForest distribution and availability ................... 9  \nForest growth............................................................... 9  \nMaterial availability .................................................. 9  \nDescription.................................................................... 9  \nGrading ........................................................................... 9  \nPhysical and mechanical properties................ 10  \nPerformance and working properties ............. 11  \nBonding ........................................................................... 11  \nMain uses ....................................................................... 11  \nThermally modified timber ........................................ 11  \nManufacturing ................................................................... 11  \nSupply chain ................................................................ 12  \nProcurement................................................................. 12  \nMaterial compatibility ............................................. 13  \nPre-processing ............................................................ 13  \nTimber grading..................................................... 13  \nCutting and finger jointing ............................. 14  \nPlaning....................................................................... 14  \nChecks upon arrival ........................................... 14  \nPriming ............................................................................ 14  \nPrimer ........................................................................ 14  \nApplication .............................................................. 15  \nBonding ........................................................................... 15  \nAdhesive ................................................................... 15  \nTimber moisture content for bonding – Adhesive manufacturer requirements ...... 15  \nAdhesive application ........................................ 16  \nGlue line thickness .............................................. 16  \nPressing........................................................................... 16  \nFurther processing .............................................. 16  \nStorage time after pressing........................... 16  \nFactory production control ................................... 17  \nPost-processing .......................................................... 17  \nEnvironmental conditions...................................... 18  \nComparison with softwood bonding – summary ........................................................................ 18  \nStructural testing ............................................................. 19  \nEdinburgh Napier University ............................... 19  \nTulipwood lamellae characterisation – Acoustic categorisation.......................................... 20  \nTulipwood lamellae characterisation – Tensile strength .................................................... 21  \nFlatwise bending.................................................. 22  \nEdgewise bending ............................................... 23  \nRolling shear........................................................... 24  \nBond strength ..............................","cbCaikmxwNLuWYi7","https://ap.wps.com/l/cbCaikmxwNLuWYi7","pdf",4457754,"English","# Executive Summary\n# Introduction & Background\n# Pioneering tulipwood CLT\n# American tulipwood\n## Forest distribution and availability\n## Description\n## Grading\n# Physical and mechanical properties\n## Performance and working properties\n## Bonding\n# Manufacturing\n## Supply chain and procurement\n## Pre-processing and timber grading\n## Priming and application\n# Structural testing\n## Tulipwood lamellae characterisation\n## Flatwise, edgewise bending and rolling shear\n# Conclusions\n## CSIC conclusions – Manufacturing\n## Recommendations for follow-on research","[{\"question\":\"What is the document’s purpose regarding tulipwood CLT?\",\"answer\":\"It introduces the working properties of American tulipwood for potential use in niche CLT projects, focusing on both mechanical performance and manufacturing requirements.\"},{\"question\":\"How does the document describe CLT and why it has grown in use?\",\"answer\":\"It presents CLT as an emerging prefabrication-oriented construction material and attributes growth to structural, environmental, and prefabrication advantages.\"},{\"question\":\"Which manufacturing topics are covered for using tulipwood in CLT production?\",\"answer\":\"It covers supply chain and procurement, pre-processing and grading, cutting and finger jointing, priming and application, adhesive and moisture requirements, pressing, further processing, storage after pressing, and factory production control.\"}]","Tulipwood CLT Properties and Manufacturing Requirements - 2019 | PDF",48]