Strength band
paper faces take bending; wet boards are scrap
Гипсокартон · Панели двуводного гипса, покупающие время в огне кальцинацией.
Numbers below are bands used by working engineers, not live quotes. Tensile note: paper faces take bending; wet boards are scrap.
Fire performance in this atlas is editorial. Real projects need the assembly report.
paper faces take bending; wet boards are scrap
Modulus follows chemistry and orientation — not the marketing nickname.
Crack growth, not peak stress, retires most real parts.
Cyclic and time-dependent damage dominate certificates issued on static coupons.
Indentation, drape or compressive class — whichever the trade actually measures.
~0.17 W/m·K — Гипсокартон is not a substitute for a dedicated λ layer.
Melting / softening / decomposition band: calcines ~80–180 °C (dehydration).
Joints and clearances must follow the expansion class of Гипсокартон, not of steel-by-habit.
Density ~700–1000 kg/m³ sets how fast a section changes temperature.
Foams, VIPs and moist batts drift; quote aged values.
Гипсокартон is generally a dielectric or semiconductor film, not building wire.
Fillers and moisture change resistivity more than brochures admit.
IACS, volume resistivity or dielectric strength — pick the quantity the job uses.
Typical declared class: A2-s1,d0 typical; core A1. This is not a universal passport.
Euroclass is reaction. EI/R ratings are assemblies — boards, coats, cavities.
Гипсокартон tends to char or stay inorganic rather than melt-drip like commodity olefins.
CO, HCN, HF or fibres — the species depend on chemistry. Name the test (ISO 5659, EN 45545, NFPA 1971).
If a salesperson quotes a single “safety score”, ask which standard, which thickness, which year.
Мета-арамид DuPont: боевая одежда, электрокартон, кокс без капель расплава.
Итого 65 🧯Краски, вспучивающиеся в изолирующий кокс — R для стали без толстых плит.
Итого 58 🌡️Огнеупорные волокна на 1000–1400 °C: футеровка, прокладки; AES смягчает риск вдыхания.
Итого 62