Paneles de CaSO4·2H2O que compran tiempo de fuego al calcinarse.
También llamado: pladur · drywall · Type X gypsum
Timothyjosephwood · CC BY-SA 4.0
Datos clave
Gypsum dihydrateMineral
Type X / F boardsFire
Hates leaksWater
DrywallIcon
~0.17λ
fireFamily
Placa de yeso is one of 32 materials in this atlas, grouped under fire: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare Placa de yeso with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.
Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
Introducción profunda
Deep dive: Placa de yeso
Placa de yeso (CaSO4·2H2O + paper faces) is a family of grades whose density ~700–1000 kg/m³, heat band calcines ~80–180 °C (dehydration), and fire letter A2-s1,d0 typical; core A1.
What “the material” actually is
Placa de yeso is sold as grades, not as a single substance. Chemistry CaSO4·2H2O + paper faces, density ~700–1000 kg/m³, heat band calcines ~80–180 °C (dehydration).
This atlas treats Placa de yeso as a system: mill route, coatings, tests and the cavity it sits in.
Heat, fire and insulation
Conductivity note: ~0.17 W/m·K. Insulation score 34/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: A2-s1,d0 typical; core A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
How it is made and used
Origin: Sackett 1894; US Gypsum 1916, United States. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: mineral-wool.
Market and circularity
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 62/100. Ask which scrap, which certificate, which year.
Atlas relacionado
Around Placa de yeso
Related atlas entries, a short glossary, and three threads that keep Placa de yeso honest.