ASTM D6841耐火处理木材设计参数调节系数计算惯例
日期:2012-02-08 10:10
ct wetting, precipitation or frequent condensation. Application of this practice is limited to roof applications with design consistent with 1.3.
1. Scope
1.1 This practice covers procedures for calculating treatment adjustment factors to be applied to design values for fire-retardant-treated lumber used at ambient temperatures [service temperatures up to 100F (38C)] and as framing in roof systems.
1.2 These design value treatment adjustment factors for the properties of extreme fiber in bending
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