{"id":45504,"date":"2018-02-27T00:43:19","date_gmt":"2018-02-26T22:43:19","guid":{"rendered":"https:\/\/mcrtecresa.com\/argamassas-tecwool\/tecwool-f\/hormigon-chapa-de-acero-perfilada"},"modified":"2026-03-17T15:15:57","modified_gmt":"2026-03-17T13:15:57","slug":"protecao-de-elemento-de-betao-chapa-de-aco","status":"publish","type":"page","link":"https:\/\/mcrtecresa.com\/pt\/argamassas-tecwool\/tecwool-f\/protecao-de-elemento-de-betao-chapa-de-aco","title":{"rendered":"Tecwool F – Prote\u00e7\u00e3o de Elemento de Bet\u00e3o Chapa de A\u00e7o"},"content":{"rendered":"

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mcr tecresa\u00ae<\/a><\/span><\/span><\/code><\/pre>\n
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Solu\u00e7\u00f5es Construtivas do Tecwool\u00ae F<\/h2>
<\/div><\/div>[\/vc_column][\/vc_row][vc_row full_width=”stretch_row”][vc_column][vc_empty_space height=”10px”][vc_row_inner][vc_column_inner width=”1\/4″][vc_btn title=”Elementos de a\u00e7o (vigas e pilares)” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Fproteccao-elementos-acero-vigas-e-pilares”][\/vc_column_inner][vc_column_inner width=”1\/4″][vc_btn title=”Elementos estruturais do bet\u00e3o” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Fprotecao-elementos-estrturais-do-betao”][\/vc_column_inner][vc_column_inner width=”1\/4″][vc_btn title=”Fibra de carbono em estruturas” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Ffibra-de-carbono”][\/vc_column_inner][vc_column_inner width=”1\/4″][vc_btn title=”Bet\u00e3o \/ Chapa perfilada de a\u00e7o” style=”custom” custom_background=”#e80b0b” custom_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:%23″][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”10px”][vc_row_inner][vc_column_inner width=”1\/4″][vc_btn title=”Laje abobadilha cer\u00e2mica\/vigas de madeira” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Flaje-abobadilha-ceramica-e-vigas-de-madeira”][\/vc_column_inner][vc_column_inner width=”1\/4″][vc_btn title=”Faixa de encontro parede vertical \/cobertura” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Ffaixa-encontro-parede-vertical-cobertura”][\/vc_column_inner][vc_column_inner width=”1\/4″][vc_btn title=”Divis\u00f3ria \/ revestimentos de grande formato” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Fdivisoria-revestimentos-de-grande-formato”][\/vc_column_inner][vc_column_inner width=”1\/4″][vc_btn title=”Prote\u00e7\u00e3o de t\u00faneis” style=”outline-custom” outline_custom_color=”#000000″ outline_custom_hover_background=”#666666″ outline_custom_hover_text=”#ffffff” shape=”round” size=”sm” align=”center” button_block=”true” link=”url:https%3A%2F%2Fmcrtecresa.com%2Fpt%2Fargamassas-tecwool%2Ftecwool-f%2Fprotecao-de-tuneis”][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”10px”][\/vc_column][\/vc_row][vc_row full_width=”stretch_row”][vc_column][vc_empty_space height=”60px”]
Tecwool\u00ae F - Prote\u00e7\u00e3o de Elemento de Bet\u00e3o Chapa de A\u00e7o<\/h1>
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A grande facilidade de montagem que oferecem esses tipos de lajes<\/u>, nas quais a chapa met\u00e1lica perfilada atua como base da cofragem<\/u> para adicionar posteriormente uma laje de bet\u00e3o, faz com que nos encontremos, em muitas ocasi\u00f5es, com estas solu\u00e7\u00f5es tanto em obras novas quanto em reabilita\u00e7\u00f5es.<\/p>\n
Entretanto, a pr\u00f3pria simplicidade da solu\u00e7\u00e3o implica o risco de que, em caso de inc\u00eandio, a chapa met\u00e1lica encontre-se \u00e0 merc\u00ea direta do fogo, produzindo uma grande vulnerabilidade na Laje<\/u>.<\/p>\n
mcr tecresa\u00ae<\/sup><\/strong>\u00a0comercializa Tecwool F<\/strong>\u00ae, <\/strong>ensaiado de acordo com a norma UNE ENV 13381-5. <\/strong>Com os dados de temperatura obtidos na chapa de a\u00e7o, a trav\u00e9s da profundidade e na superf\u00edcie n\u00e3o exposta do bet\u00e3o teremos:<\/p>\n
– A rela\u00e7\u00e3o entre a temperatura do a\u00e7o, o tempo e a espessura do material de prote\u00e7\u00e3o conta o fogo.<\/p>\n
– A espessura equivalente do bet\u00e3o em rela\u00e7\u00e3o com os crit\u00e9rios de isolamento t\u00e9rmico.<\/p>\n
– A informa\u00e7\u00e3o sobre a capacidade de ader\u00eancia e tempos limitadores de exposi\u00e7\u00e3o.<\/p>\n
Para espessuras intermedias do sistema de prote\u00e7\u00e3o conta o fogo, o tempo para que a temperatura caracter\u00edstica aumente at\u00e9 os 350 C obt\u00eam-se atrav\u00e9s de interpola\u00e7\u00e3o linear.<\/p>\n
O bet\u00e3o utilizado pode ser leve, normal ou pesado e com diferentes tipos<\/u> de resist\u00eancia 20\/25 (LC\/C\/HC) a 50\/60 (LC\/C\/HC). O elemento pode conter barras de armadura de a\u00e7o.<\/p>\n
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Ensaio<\/p>
<\/div><\/div>[vc_column_text]Norma<\/b>: UNE ENV 13381-5
\nLaborat\u00f3rio<\/b>: APPLUS
\nN\u00ba ensaio<\/b>: 10\/100324-148[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/2″]
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Solu\u00e7\u00e3o<\/p>
<\/div><\/div>[vc_column_text]1.<\/strong><\/span> Laje de bet\u00e3o .
\n2.<\/strong><\/span> Chapa perfilada de a\u00e7o.
\n3.<\/strong><\/span> Tecwool\u00ae<\/sup> F<\/strong> (espessura em fun\u00e7\u00e3o da profundidade do bet\u00e3o e do tempo de resist\u00eancia ao fogo requerido).[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=”1\/2″]
Aplica\u00e7\u00e3o<\/h2>
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Tecwool<\/strong>\u00ae F<\/strong> projeta-se mediante m\u00e1quina pneum\u00e1tica de acordo com as seguintes especifica\u00e7\u00f5es t\u00e9cnicas:<\/p>\n
A superf\u00edcie a proteger-se n\u00e3o necessita de nenhum tipo de imprima\u00e7\u00e3o pr\u00e9via, malha ou qualquer outro tipo de suporte que sirva de ader\u00eancia \u00e0 argamassa.<\/p>\n
A superf\u00edcie a proteger-se estar\u00e1 limpa de poeira, \u00f3leos, res\u00edduos, part\u00edculas mal aderidas, restos de pintura, etc.<\/p>\n
Conv\u00e9m reg\u00e1-la ligeiramente com \u00e1gua da pr\u00f3pria mangueira de aplica\u00e7\u00e3o, para assim eliminar qualquer sujeira que o paramento possa ter. Isto tamb\u00e9m proporcionar\u00e1 que se alcance um equil\u00edbrio t\u00e9rmico entre a argamassa e a superf\u00edcie aplicada.<\/p>\n
Tecwool<\/strong>\u00ae F<\/strong> pode proporcionar diferentes acabamentos: \u00e1spero, liso, pintado etc., a depender da fun\u00e7\u00e3o est\u00e9tica requerida. Para acabamentos lisos, uma vez finalizada a proje\u00e7\u00e3o, deve-se passar um rolo e pression\u00e1-lo levemente sobre a argamassa h\u00famida at\u00e9 conseguir a termina\u00e7\u00e3o desejada. \u00c9 poss\u00edvel pintar a argamassa com revestimentos acr\u00edlicos el\u00e1sticos que formem uma barreira \u00e0<\/u> passagem do vapor<\/u> de \u00e1gua. Antes de proceder \u00e0 pintura, deve-se assegurar que a argamassa esteja completamente seca (28 dias).<\/p>\n
Para que o consolidado do cimento realize-se em condi\u00e7\u00f5es \u00f3timas, uma vez projetada a argamassa \u00e9 necess\u00e1rio pulveriz\u00e1-la superficialmente com a \u00e1gua.<\/p>\n
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Documento do produto<\/h2>
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Alguma d\u00favida? Entre em contato connosco<\/h2>
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