Henrik Heräjärvi
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View article: Potential for wider adoption of wood fiber insulation in building construction
Potential for wider adoption of wood fiber insulation in building construction Open
As Europe advances toward low-carbon construction, bio-based materials like wood fiber insulation (WFI) are gaining traction as viable alternatives to conventional insulations. Industrial timber construction presents a strategic context fo…
View article: Boron fertilization in a boreal Norway spruce forest: long-lasting effects on growth and nutrition
Boron fertilization in a boreal Norway spruce forest: long-lasting effects on growth and nutrition Open
Background and aims Boron (B) deficiency is widespread in boreal forests, but it can be prevented by fertilization. As B deficiency reduces root growth, it may affect the uptake of other nutrients. We assessed the persistence of the effect…
View article: Properties and hydrophobization of nonwoven-woven all-cellulose composites
Properties and hydrophobization of nonwoven-woven all-cellulose composites Open
All-cellulose composites (ACCs) have been fabricated by using a variety of cellulosic sources, versatile technologies, and are sustainable alternatives for traditional composites. In this study, nonwoven-woven ACC laminates were created fr…
View article: Wood is much more than just carbon
Wood is much more than just carbon Open
View article: Mechanical and Thermal Properties of Wood-Fiber-Based All-Cellulose Composites and Cellulose-Polypropylene Biocomposites
Mechanical and Thermal Properties of Wood-Fiber-Based All-Cellulose Composites and Cellulose-Polypropylene Biocomposites Open
This article explores wood-fiber-based fabrics containing Lyocell yarn in the warp and Spinnova–Lyocell (60%/40%) yarn in the weft, which are used to form unidirectional all-cellulose composites (ACC) through partial dilution in a NaOH–ure…
View article: Effect of nine-year soil contact on physical performance of crude tall oil impregnated, copper salt impregnated, and non-treated Scots pine posts
Effect of nine-year soil contact on physical performance of crude tall oil impregnated, copper salt impregnated, and non-treated Scots pine posts Open
Crude tall oil (CTO), a side product of sulphate pulping, has promising results in moisture and decay resistance. This article reports the Pilodyn indentation hardness, basic density, and mechanical performance of 600-mm long Scots pine po…
View article: All-Cellulose Composite Laminates Made from Wood-Based Textiles: Effects of Process Conditions and the Addition of TEMPO-Oxidized Nanocellulose
All-Cellulose Composite Laminates Made from Wood-Based Textiles: Effects of Process Conditions and the Addition of TEMPO-Oxidized Nanocellulose Open
All-cellulose composites (ACCs) are manufactured using only cellulose as a raw material. Biobased materials are more sustainable alternatives to the petroleum-based composites that are used in many technical and life-science applications. …
View article: Transformation needs of wood construction sectors in five European regions
Transformation needs of wood construction sectors in five European regions Open
Building with wood is an emerging industry that can contribute to the reduction of greenhouse gas emissions and help to unlock the low-carbon, circular economy. By maximising the use of wood in new buildings and renovation through optimal …
View article: Subfossil Scots Pine (Pinus sylvestris L.) Wood from Northern Finland—Physical, Mechanical, and Chemical Properties and Suitability for Specialty Products
Subfossil Scots Pine (Pinus sylvestris L.) Wood from Northern Finland—Physical, Mechanical, and Chemical Properties and Suitability for Specialty Products Open
The physical, mechanical, and chemical properties of both stem wood and knot wood were investigated from two subfossil Scots pine (Pinus sylvestris L.) trunks retrieved from a lake in Finnish Lapland, dated to 404–486 CE and to 1318–1444 C…
View article: The Future of Wood Construction: Opportunities and Barriers Based on Surveys in Europe and Chile
The Future of Wood Construction: Opportunities and Barriers Based on Surveys in Europe and Chile Open
The demand for wood has increased in recent years due to new technical possibilities and environmental concerns. This paper provides an analysis of the factors that affect the use of wood in the construction sector, and an assessment of th…
View article: What do engineered wood products and Ford Model T have in common?
What do engineered wood products and Ford Model T have in common? Open
View article: Holistic approach to the building with wood value chain. BASAJAUN Public report D1.4
Holistic approach to the building with wood value chain. BASAJAUN Public report D1.4 Open
<p>WP1 defines the context in which the BASAJAUN project will address construction processes in connection with sustainable regional development. This report investigates the wood construction value chain in three regions: Franc…
View article: Guidelines to foster building with wood. BASAJAUN Public report D1.3
Guidelines to foster building with wood. BASAJAUN Public report D1.3 Open
Wooden construction has great development potential in Europe and in the world. It is based on a renewable and inexhaustible source of raw material, which is wood. However, this potential is still not fully exploited, while broader use of …
View article: Building with wood as a driver for sustainable development in rural regions. BASAJAUN Public report D1.2
Building with wood as a driver for sustainable development in rural regions. BASAJAUN Public report D1.2 Open
The objectives of Deliverable 1.2 are to: 1) Describe the political, industrial, and market driven context for wood construction in Finland (pilot region North Karelia), France (Gironde), and Poland (West Pomerania); 2) Map the existing ru…
View article: European forest as raw material supplier in the construction sector. BASAJAUN Public report D1.1
European forest as raw material supplier in the construction sector. BASAJAUN Public report D1.1 Open
<p>This deliverable D1.1 is a document of the BASAJAUN project, provided in the context of WP1 -Task T1.1: European forests as a raw material supplier in the construction sector. D1.1 is focused in: - species used mainly fo…
View article: Massiivipuun päästöt sisäilmaan : Kirjallisuuskatsaus
Massiivipuun päästöt sisäilmaan : Kirjallisuuskatsaus Open
Rakennus- ja sisustusmateriaaleista ja -tuotteista haihtuvien päästöjen määrät ovat nousseet materiaalien, liimojen, pinnoitteiden, tapettien jne. keskeisiksi laatuvaatimuksiksi. Vähäpäästöisyys on erityisen tärkeää rakennettaessa tai remo…
View article: The Forest in Northern Europe’s Emerging Bioeconomy Reflections on the forest’s role in the bioeconomy
The Forest in Northern Europe’s Emerging Bioeconomy Reflections on the forest’s role in the bioeconomy Open
View article: Science as a decision-support tool in forest policies
Science as a decision-support tool in forest policies Open
View article: Ilmastoviisas sahateollisuus - Sahateollisuuden hiilitiekartta -raportti
Ilmastoviisas sahateollisuus - Sahateollisuuden hiilitiekartta -raportti Open
View article: Mechanical properties and water resistance of Vietnamese acacia and rubberwood after thermo-hygro-mechanical modification
Mechanical properties and water resistance of Vietnamese acacia and rubberwood after thermo-hygro-mechanical modification Open
Low density and poor mechanical performance often limit utilisation of sawn wood from fast-growing plantation forests. Thermo-hygro-mechanical modification (THM) of timber is one innovation for improving the properties of light-weight wood…
View article: Pohjois-Karjalan ja Kiinan välisen metsäbiotalouden nykytilanne ja kehitysmahdollisuudet
Pohjois-Karjalan ja Kiinan välisen metsäbiotalouden nykytilanne ja kehitysmahdollisuudet Open
Tämä raportti taustoittaa Pohjois-Karjalan ja Kiinan välistä puutuotealan tuotteiden ja luon-nontuotteiden (erityisesti sienien ja marjojen) kauppaa sekä luontomatkailun nykytilaa. Raportti luo tilannekuvaa ja toimii esiselvityksenä sille,…
View article: Effect of natural weathering on water absorption and pore size distribution in thermally modified wood determined by nuclear magnetic resonance
Effect of natural weathering on water absorption and pore size distribution in thermally modified wood determined by nuclear magnetic resonance Open
View article: Sawlog quality and tree dimensions of Scots pine 34 years after artificial moose browsing damage
Sawlog quality and tree dimensions of Scots pine 34 years after artificial moose browsing damage Open
Moose ( L.) browsing causes severe damage in Scots pine ( L.) seedling stands. The effects of this damage on the quality of sawlogs were studied in a long-term controlled experiment. This article reports the stem size and external quality …
View article: Suomalainen visakoivu metsästä maailmalle – puuvarannot, logistiikka ja laatuluokitus
Suomalainen visakoivu metsästä maailmalle – puuvarannot, logistiikka ja laatuluokitus Open
View article: Pystykarsinnan ajankohdan ja työmenetelmän vaikutukset rauduskoivun oksien kyljestymiseen ja rungon värivikoihin – tilanne 5–6 vuotta karsinnan jälkeen
Pystykarsinnan ajankohdan ja työmenetelmän vaikutukset rauduskoivun oksien kyljestymiseen ja rungon värivikoihin – tilanne 5–6 vuotta karsinnan jälkeen Open
View article: Effect of Thermo-Mechanical Modification on Mechanical Properties and Water Resistance of Plantation-Grown Vietnamese Acacia and Rubberwood
Effect of Thermo-Mechanical Modification on Mechanical Properties and Water Resistance of Plantation-Grown Vietnamese Acacia and Rubberwood Open
Low density and poor mechanical performance often limit utilization of sawn wood from fast-growing plantation forests. Thermo-mechanical modification of timber (TMTM®) is one innovation for improving the utilization rate of light-weight wo…
View article: New age of discovery in wood science
New age of discovery in wood science Open
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View article: Effect of pruning season and tool on knot occlusion and stem discolouration in <i>Betula pendula</i> – situation five years after pruning
Effect of pruning season and tool on knot occlusion and stem discolouration in <i>Betula pendula</i> – situation five years after pruning Open
This paper investigates and models the effects of pruning season and tool on wound occlusion with varying tree and branch characteristics of silver birch (Betula pendula Roth) stems at the pruning height of 0â4 metres. Dates of eight sec…
View article: Puun ominaisuuksien modifiointi : Menetelmät ja tutkimuksen tila
Puun ominaisuuksien modifiointi : Menetelmät ja tutkimuksen tila Open
Tässä julkaisussa tarkastellaan puun ominaisuuksien fysikaalisia, kemiallisia ja biologisia muokkaus- eli modifiointimenetelmiä. Näillä menetelmillä on tavoitteena parantaa sekä puun alun perin hyviä ominaisuuksia että sen käyttöä rajoitta…
View article: Utilization of industrial side streams originating from sawmilling – challenges and suggestions
Utilization of industrial side streams originating from sawmilling – challenges and suggestions Open