Making of 1 Hour and 2 Hour Fire Rating Walls

Question

What is method or procedure for making 1 hour and 2 hour fire rating walls?

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Answers ( 3 )

  1. Dear Madeh

    Greetings. Thanks for your reply. Kindly also let me know if i have to make fire rating wall with
    solid or hollow blocks what is procedure.

    Regards
    Sanjay Limbasia

    • Dear Sanjay Limbasia

      Chapter 3 of ACI 216.1-07 (Code Requirements for Determining Fire Resistance of Concrete and Masonry Construction Assemblies) provides adequate data and procedure regarding to request.

      Best Regards

  2. According to ACI 216.1-07 (Code Requirements for Determining Fire Resistance of Concrete and Masonry Construction Assemblies), the thickness of plain and reinforced concrete bearing or nonbearing walls required to provide fire-resistance ratings of 1 to 4 hours, shall comply with the minimum equivalent thickness values provided in Table below:

    Table 1 fire resistance rating of single layer concrete walls
    Aggregate
    type Minimum equivalent thickness for fire-resistance rating, in.
    1 hour 1.5 hours 2 hours 4 hours 4 hours
    Siliceous 3.5 4.3 5 6.2 7
    Carbonate 3.2 4 4.6 5.7 6.6
    Semi lightweight 2.7 3.3 3.8 4.6 5.4
    Lightweight 2.5 3.1 3.6 4.4 5.1

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