The water absorption of thermally modified sapwood and heartwood of Scots pine and Norway spruce

Sini Metsä-Kortelainen

The water absorption of thermally modified sapwood and heartwood of Scots pine and Norway spruce

Sini Metsä-Kortelainen

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

Abstract

Water absorption differences between sapwood and heartwood of Scots pine and Norway spruce heat-treated at temperatures 170°C, 190°C, 210°C and 230°C were investigated. The results were compared to industrially kiln-dried reference samples. Water absorption was determined with a floating test based on the EN 927-5 standard. Generally, the heartwood of both wood species absorbed less water than sapwood. Heat-treatment evidently decreased the water absorption of spruce and pine heartwood. Pine sapwood quickly absorbed much water compared to the heartwood of pine. It is very remarkable that heat-treatment at lower temperatures actually increased the water absorption of pine sapwood.

Original language	English
Title of host publication	Wood Modification
Subtitle of host publication	Processes, Properties and Commercialisation
Place of Publication	Göttingen
Pages	70 - 73
Publication status	Published - 2005
MoE publication type	B3 Non-refereed article in conference proceedings
Event	the Second European Conference on Wood Modification, ECWM 2005 - Göttingen, Germany Duration: 6 Oct 2005 → 7 Oct 2005

Conference

Conference	the Second European Conference on Wood Modification, ECWM 2005
Country/Territory	Germany
City	Göttingen
Period	6/10/05 → 7/10/05

Keywords

heartwood
heat-treatment
sapwood
thermal modification
water absorption
wood

Cite this

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title = "The water absorption of thermally modified sapwood and heartwood of Scots pine and Norway spruce",

abstract = "Water absorption differences between sapwood and heartwood of Scots pine and Norway spruce heat-treated at temperatures 170°C, 190°C, 210°C and 230°C were investigated. The results were compared to industrially kiln-dried reference samples. Water absorption was determined with a floating test based on the EN 927-5 standard. Generally, the heartwood of both wood species absorbed less water than sapwood. Heat-treatment evidently decreased the water absorption of spruce and pine heartwood. Pine sapwood quickly absorbed much water compared to the heartwood of pine. It is very remarkable that heat-treatment at lower temperatures actually increased the water absorption of pine sapwood.",

keywords = "heartwood, heat-treatment, sapwood, thermal modification, water absorption, wood",

author = "Sini Mets{\"a}-Kortelainen",

note = "Project code: R3SU00591; the Second European Conference on Wood Modification, ECWM 2005 ; Conference date: 06-10-2005 Through 07-10-2005",

year = "2005",

language = "English",

isbn = "3-00-017207-6",

pages = "70 -- 73",

booktitle = "Wood Modification",

}

TY - GEN

T1 - The water absorption of thermally modified sapwood and heartwood of Scots pine and Norway spruce

AU - Metsä-Kortelainen, Sini

N1 - Project code: R3SU00591

PY - 2005

Y1 - 2005

N2 - Water absorption differences between sapwood and heartwood of Scots pine and Norway spruce heat-treated at temperatures 170°C, 190°C, 210°C and 230°C were investigated. The results were compared to industrially kiln-dried reference samples. Water absorption was determined with a floating test based on the EN 927-5 standard. Generally, the heartwood of both wood species absorbed less water than sapwood. Heat-treatment evidently decreased the water absorption of spruce and pine heartwood. Pine sapwood quickly absorbed much water compared to the heartwood of pine. It is very remarkable that heat-treatment at lower temperatures actually increased the water absorption of pine sapwood.

AB - Water absorption differences between sapwood and heartwood of Scots pine and Norway spruce heat-treated at temperatures 170°C, 190°C, 210°C and 230°C were investigated. The results were compared to industrially kiln-dried reference samples. Water absorption was determined with a floating test based on the EN 927-5 standard. Generally, the heartwood of both wood species absorbed less water than sapwood. Heat-treatment evidently decreased the water absorption of spruce and pine heartwood. Pine sapwood quickly absorbed much water compared to the heartwood of pine. It is very remarkable that heat-treatment at lower temperatures actually increased the water absorption of pine sapwood.

KW - heartwood

KW - heat-treatment

KW - sapwood

KW - thermal modification

KW - water absorption

KW - wood

M3 - Conference article in proceedings

SN - 3-00-017207-6

SP - 70

EP - 73

BT - Wood Modification

CY - Göttingen

T2 - the Second European Conference on Wood Modification, ECWM 2005

Y2 - 6 October 2005 through 7 October 2005

ER -

The water absorption of thermally modified sapwood and heartwood of Scots pine and Norway spruce

Abstract

Conference

Keywords

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