TY - GEN
T1 - Self-extinguishment of cross-laminated timber
AU - Crielaard, Roy
AU - Van De Kuilen, Jan Willem
AU - Terwel, Karel
AU - Ravenshorst, Geert
AU - Steenbakkers, Pascal
AU - Breunese, Arnoud
PY - 2016
Y1 - 2016
N2 - Cross-laminated timber, or CLT, is receiving attention for its potential use in tall buildings. As a combustible material, one of the challenges for the construction of these buildings is the fire risk that results from its use in the structure. Unprotected CLT can burn along with the fuel load present in a compartment. Irrespective of its fire resistance rating, it is uncertain whether the structure will be totally consumed in the event of a complete burnout, or whether a fire would decay by self-extinguishment. Self-extinguishment of CLT was investigated by first creating a theoretical model that determined the conditions under which it could be achieved. Two series of experiments were subsequently conducted to quantify these conditions. Based on these experiments it was concluded that there is a potential for self-extinguishment of CLT if: delamination and falloff of charred layers are prevented by applying sufficiently thick lamellae; the heat flux on the CLT during smouldering is below 5 to 6 kW/m2; and the airflow over the CLT surface during smouldering is limited to a speed of 0,5 m/s at heat flux exposures below 6 kW/m2.
AB - Cross-laminated timber, or CLT, is receiving attention for its potential use in tall buildings. As a combustible material, one of the challenges for the construction of these buildings is the fire risk that results from its use in the structure. Unprotected CLT can burn along with the fuel load present in a compartment. Irrespective of its fire resistance rating, it is uncertain whether the structure will be totally consumed in the event of a complete burnout, or whether a fire would decay by self-extinguishment. Self-extinguishment of CLT was investigated by first creating a theoretical model that determined the conditions under which it could be achieved. Two series of experiments were subsequently conducted to quantify these conditions. Based on these experiments it was concluded that there is a potential for self-extinguishment of CLT if: delamination and falloff of charred layers are prevented by applying sufficiently thick lamellae; the heat flux on the CLT during smouldering is below 5 to 6 kW/m2; and the airflow over the CLT surface during smouldering is limited to a speed of 0,5 m/s at heat flux exposures below 6 kW/m2.
KW - CLT
KW - Cross-laminated timber
KW - Experiments
KW - Fire
KW - Self-extinguishment
KW - Structure
UR - http://www.scopus.com/inward/record.url?scp=85011005132&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85011005132
T3 - WCTE 2016 - World Conference on Timber Engineering
BT - WCTE 2016 - World Conference on Timber Engineering
PB - Vienna University of Technology
T2 - 2016 World Conference on Timber Engineering, WCTE 2016
Y2 - 22 August 2016 through 25 August 2016
ER -