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 Engineering Laboratory /                  Fire Research Division
      National Fire Research Laboratory

    
    Breadcrumb
        Fire Calorimetry Database (FCD)Cross Laminated Timber Compartment Fire Tests

            Research Overview
                                This study quantifies the contribution of CLT building elements to compartment fires and characterizes the effect of gypsum board on delaying or preventing involvement of the CLT in the fire under varied ventilation conditions. Six compartments (9.1 m long x 4.6 m wide x 2.7 m high) were assembled out of prefabricated CLT panels. Each panel was factory assembled using five plies of 35 mm thick lumber for a total thickness of 175 mm. A polyurethane adhesive was used to hold the plies together. The compartment had a rough opening in Wall W2 (front) of 1.8 m wide x 2.0 m high in four tests and 3.6 m wide x 2.0 m high in two tests. The inside of the compartments was fully or partially lined using multiple layers of 15.9-mm thick Type X gypsum board. Real residential contents and furnishings were used to provide a fire load density of 550 MJ/m2. The fire tests were conducted without sprinklers and without firefighting intervention. These experiments were conducted under the auspices of the Fire Protection Research Foundation in collaboration with the National Research Council Canada (project lead).


                  Hoehler, M. Dataset from Fire Safety Challenges of Tall Wood Buildings - Phase 2: Task 3 - Cross Laminated Timber Compartment Fire Tests, 2017
  https://doi.org/10.18434/T4/1422512
  

      

      Experiment Name
                            Plot of Heat Release Rate
                                                  Ignition Photo
                                                  Date/Time
                                                  Specimen
                                                  Fuel Type
                            Test Duration (min)
                            Total Heat Released (MJ)Sort descending
                            Peak HRR (kW)CornerTest1
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        01/09/2017 8:47:05 AM EST
                                                                                        room corner mockup
                                                                                        Cellulose, Plastic
                            49.50
                            1,522
                            1,624CornerTest2
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        01/11/2017 6:28:08 AM EST
                                                                                        room corner mockup
                                                                                        Cellulose, Plastic
                            43.67
                            1,572
                            2,083CLT_Room_Test_1-1
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        02/16/2017 5:11:17 AM EST
                                                                                        furnished studio apartment
                                                                                        Cellulose, Plastic
                            135.03
                            17,883
                            9,487CLT_Room_Test_1-2
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        02/23/2017 4:51:58 PM EST
                                                                                        furnished studio apartment
                                                                                        Cellulose, Plastic
                            107.63
                            18,541
                            12,451NGCal15m20MWburner2
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        01/13/2017 5:14:57 AM EST
                                                                                        tube gas burner
                                                                                        Natural Gas
                            46.67
                            22,938
                            22,018NGCal15m20MWburner
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        01/12/2017 10:44:51 AM EST
                                                                                        tube gas burner
                                                                                        Natural Gas
                            53.82
                            28,734
                            23,535CLT_Room_Test_1-3
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        03/16/2017 6:20:37 AM EDT
                                                                                        furnished studio apartment, CLT wall
                                                                                        Cellulose, Plastic
                            247.30
                            32,448
                            14,171CLT_Room_Test_1-4
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        03/21/2017 5:55:01 AM EDT
                                                                                        furnished studio apartment, CLT ceiling
                                                                                        Cellulose, Plastic
                            175.73
                            35,941
                            13,114CLT_Room_Test_1-5
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        04/13/2017 5:51:25 AM EDT
                                                                                        furnished studio apartment, CLT wall
                                                                                        Cellulose, Plastic
                            219.52
                            53,580
                            10,372CLT_Room_Test_1-6
                            Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
                                                                                        Ignition
                                                                                        04/18/2017 5:53:06 AM EDT
                                                                                        furnished studio apartment, CLT wall and ceiling
                                                                                        Cellulose, Plastic
                            192.53
                            78,200
                            12,910

      Bryant, R. and Bundy, M. The NIST 20 MW Calorimetry Measurement System for Large-Fire Research, Technical Note (NIST TN) 2077, 2019https://doi.org/10.6028/NIST.TN.2077
        NIST Fire Calorimetry Database (FCD)https://doi.org/10.18434/mds2-2314

      Last Updated October 21, 2020
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