{"id":900623,"date":"2026-11-06T18:57:40","date_gmt":"2026-11-06T18:57:40","guid":{"rendered":"https:\/\/www.metaflotech.com\/?p=900623"},"modified":"2026-11-10T19:36:12","modified_gmt":"2026-11-10T19:36:12","slug":"sandy-soil-stabilization-for-forestry-roads-performance-under-traffic-loads-of-up-to-250-tonnes","status":"publish","type":"post","link":"https:\/\/www.metaflotech.com\/pt\/sandy-soil-stabilization-for-forestry-roads-performance-under-traffic-loads-of-up-to-250-tonnes\/","title":{"rendered":"Estabiliza\u00e7\u00e3o de solos arenosos em estradas florestais: desempenho sob tr\u00e1fego de at\u00e9 250 toneladas"},"content":{"rendered":"

<\/h2>\n

\"Unpaved<\/p>\n

As estradas florestais est\u00e3o entre os componentes mais exigidos da infraestrutura log\u00edstica do setor de madeira e celulose. Submetidas ao tr\u00e1fego di\u00e1rio de ve\u00edculos de grande porte, essas vias precisam manter condi\u00e7\u00f5es adequadas de circula\u00e7\u00e3o, mesmo em regi\u00f5es com solos de baixa capacidade de suporte e ciclos clim\u00e1ticos que alternam per\u00edodos de seca e chuvas intensas.<\/span><\/p>\n

Quando a estrutura da estrada n\u00e3o suporta essas condi\u00e7\u00f5es, podem surgir problemas como atoleiros, corruga\u00e7\u00f5es, eros\u00f5es e trilhas de roda. Al\u00e9m de comprometerem as condi\u00e7\u00f5es de circula\u00e7\u00e3o, essas ocorr\u00eancias exigem interven\u00e7\u00f5es frequentes e aumentam a complexidade da opera\u00e7\u00e3o log\u00edstica.<\/span><\/p>\n

Nesse cen\u00e1rio, a estabiliza\u00e7\u00e3o do solo desempenha um papel importante na melhoria do desempenho estrutural e da durabilidade das estradas n\u00e3o pavimentadas.<\/span><\/p>\n

Para avaliar uma alternativa tecnol\u00f3gica nesse contexto, a MetaFLO Technologies conduziu, em parceria com uma empresa do setor de celulose, um estudo de aplica\u00e7\u00e3o do biopol\u00edmero SoilTech em uma estrada florestal.<\/span><\/p>\n

O projeto combinou ensaios laboratoriais realizados pelo Laborat\u00f3rio de Transportes da Universidade Federal de Mato Grosso do Sul (LATRAN\/UFMS) com o acompanhamento de um trecho piloto durante 12 meses.<\/span><\/p>\n

Os resultados demonstraram ganhos expressivos de capacidade de suporte e a manuten\u00e7\u00e3o da integridade estrutural da camada estabilizada sob condi\u00e7\u00f5es reais de opera\u00e7\u00e3o.<\/span><\/p>\n

O desafio: suportar composi\u00e7\u00f5es de 250 toneladas sobre solo arenoso<\/b><\/h3>\n

Nas opera\u00e7\u00f5es florestais, a infraestrutura vi\u00e1ria precisa suportar composi\u00e7\u00f5es de transporte especialmente pesadas. No trecho avaliado, circulavam caminh\u00f5es de 21 eixos, com Peso Bruto Total Combinado (PBTC) de at\u00e9 250 toneladas e aproximadamente 192 toneladas de carga l\u00edquida de madeira de eucalipto. As cargas por eixo ultrapassavam 13 toneladas.<\/span><\/p>\n

O desafio era agravado pelas caracter\u00edsticas do solo local. Classificado pelo DNIT como areia fina tropical, o material tamb\u00e9m apresentou comportamento n\u00e3o pl\u00e1stico (IP = NP), indicando baixa coes\u00e3o natural.<\/span><\/p>\n

Nos ensaios laboratoriais realizados pelo LATRAN\/UFMS, com energia modificada de compacta\u00e7\u00e3o, o \u00cdndice de Suporte Calif\u00f3rnia (CBR) do solo natural foi de 38,8%, valor utilizado como refer\u00eancia para avaliar o desempenho das diferentes composi\u00e7\u00f5es de estabiliza\u00e7\u00e3o.<\/span><\/p>\n

Sob tr\u00e1fego repetitivo de ve\u00edculos pesados, essas caracter\u00edsticas favoreciam a forma\u00e7\u00e3o de deforma\u00e7\u00f5es e aumentavam a necessidade de manuten\u00e7\u00e3o da estrada.<\/span><\/p>\n

SoilTech: biopol\u00edmero de algas marinhas aplicado \u00e0 estabiliza\u00e7\u00e3o de solos<\/b><\/h3>\n

Para enfrentar esse desafio foi utilizado o SoilTech,<\/a> biopol\u00edmero formulado a partir de algas marinhas e desenvolvido para melhorar as propriedades de solos utilizados em obras de infraestrutura.<\/span><\/p>\n

Sua atua\u00e7\u00e3o promove a aglutina\u00e7\u00e3o das part\u00edculas do solo, contribuindo para aumentar a coes\u00e3o entre os gr\u00e3os e melhorar o comportamento mec\u00e2nico do material estabilizado.<\/span><\/p>\n

A tecnologia utiliza dosagens reduzidas, com concentra\u00e7\u00f5es entre 0,01% e 0,03% de produto em rela\u00e7\u00e3o \u00e0 massa de solo seco nas aplica\u00e7\u00f5es de campo.<\/span><\/p>\n

Outro aspecto importante \u00e9 sua compatibilidade com equipamentos convencionais de pavimenta\u00e7\u00e3o. A incorpora\u00e7\u00e3o pode ser realizada com caminh\u00e3o-pipa, recicladora de solos ou trator de grade, motoniveladora e rolos compactadores.<\/span><\/p>\n

Dessa forma, o SoilTech pode ser integrado aos processos tradicionais de execu\u00e7\u00e3o de estradas, sem exigir maquin\u00e1rio espec\u00edfico.<\/span><\/p>\n

Valida\u00e7\u00e3o laboratorial: combina\u00e7\u00e3o de SoilTech e cimento alcan\u00e7a CBR de 207,1%<\/b><\/h3>\n

O desempenho mec\u00e2nico das misturas foi avaliado pelo Laborat\u00f3rio de Transportes da Universidade Federal de Mato Grosso do Sul (LATRAN\/UFMS).<\/span><\/p>\n

Os ensaios foram realizados com energia modificada de compacta\u00e7\u00e3o, comparando o solo natural com diferentes alternativas de estabiliza\u00e7\u00e3o qu\u00edmica e granular.<\/span><\/p>\n

Entre as composi\u00e7\u00f5es avaliadas, a combina\u00e7\u00e3o de 2% de cimento CP II com 0,2% de SoilTech apresentou o maior \u00cdndice de Suporte Calif\u00f3rnia (CBR): 207,1%. <\/span>207.1%<\/b>.<\/span><\/p>\n

\"Laboratory<\/p>\n

Fonte: Ensaios laboratoriais do LATRAN\/UFMS, com energia modificada de compacta\u00e7\u00e3o.<\/span><\/i><\/p>\n

Al\u00e9m do maior valor de CBR, a mistura com cimento e SoilTech apresentou umidade \u00f3tima de compacta\u00e7\u00e3o de 5,8%, inferior aos 9,2% registrados na composi\u00e7\u00e3o com cimento isoladamente.<\/span><\/p>\n

Esses resultados indicam o potencial da combina\u00e7\u00e3o para melhorar a capacidade de suporte do solo e modificar suas condi\u00e7\u00f5es de compacta\u00e7\u00e3o.<\/span><\/p>\n

\u00c9 importante destacar que os resultados laboratoriais representam condi\u00e7\u00f5es espec\u00edficas de ensaio e n\u00e3o devem ser confundidos com o desempenho observado posteriormente no trecho piloto.<\/span><\/p>\n

Do laborat\u00f3rio ao campo: 12 meses de desempenho sob tr\u00e1fego pesado<\/b><\/h3>\n

Com base nas avalia\u00e7\u00f5es t\u00e9cnicas, foi implantado um trecho piloto utilizando a seguinte composi\u00e7\u00e3o:<\/span><\/p>\n

    \n
  • 70% de solo natural (arenoso, A-2-4);<\/span><\/li>\n
  • 30% de Brita Graduada Simples (BGS);<\/span><\/li>\n
  • 0,02% de SoilTech;<\/span><\/li>\n
  • 2% de cimento CP II.<\/span><\/li>\n<\/ul>\n

    O trecho foi acompanhado durante 12 meses, permitindo observar seu comportamento diante do tr\u00e1fego cont\u00ednuo de caminh\u00f5es de 21 eixos e das varia\u00e7\u00f5es clim\u00e1ticas da regi\u00e3o.<\/span><\/p>\n

    A evolu\u00e7\u00e3o do monitoramento:<\/b><\/p>\n

    1 m\u00eas:<\/b> manuten\u00e7\u00e3o das condi\u00e7\u00f5es de rolamento, sem deforma\u00e7\u00f5es pl\u00e1sticas ou forma\u00e7\u00e3o de trilhas de roda.<\/span><\/p>\n

    5 meses:<\/b> preserva\u00e7\u00e3o da integridade estrutural da camada, mesmo sob umecta\u00e7\u00e3o e cargas superiores a 13 toneladas por eixo.<\/span><\/p>\n

    9 meses:<\/b> durante o per\u00edodo de chuvas intensas, com tr\u00e1fego cont\u00ednuo de madeira proveniente de duas fazendas, o trecho estabilizado manteve a coes\u00e3o superficial, diferentemente de vias n\u00e3o estabilizadas no entorno.<\/span><\/p>\n

    12 meses:<\/b> ap\u00f3s um ano de opera\u00e7\u00e3o, foi realizada a primeira manuten\u00e7\u00e3o corretiva localizada, com interven\u00e7\u00f5es pontuais de tapa-buracos.<\/span><\/p>\n

    O acompanhamento demonstrou a capacidade da camada estabilizada de preservar seu desempenho ao longo de diferentes condi\u00e7\u00f5es de opera\u00e7\u00e3o, incluindo per\u00edodos de maior umidade e tr\u00e1fego intenso.<\/span><\/p>\n

    Uma alternativa para os desafios da infraestrutura florestal<\/b><\/h3>\n

    O estudo demonstra como a estabiliza\u00e7\u00e3o de solos com biopol\u00edmeros pode contribuir para melhorar o desempenho de estradas n\u00e3o pavimentadas submetidas a condi\u00e7\u00f5es severas de opera\u00e7\u00e3o.<\/span><\/p>\n

    A combina\u00e7\u00e3o de resultados laboratoriais e acompanhamento em campo permitiu observar ganhos expressivos de capacidade de suporte, manuten\u00e7\u00e3o da integridade estrutural durante 12 meses e indicadores positivos de efici\u00eancia na execu\u00e7\u00e3o.<\/span><\/p>\n

    Em opera\u00e7\u00f5es florestais, nas quais a circula\u00e7\u00e3o cont\u00ednua de ve\u00edculos pesados exige infraestrutura resistente e confi\u00e1vel, a escolha da tecnologia de estabiliza\u00e7\u00e3o deve considerar as caracter\u00edsticas do solo, as cargas de tr\u00e1fego e as condi\u00e7\u00f5es clim\u00e1ticas de cada regi\u00e3o. Essa avalia\u00e7\u00e3o permite desenvolver solu\u00e7\u00f5es personalizadas, adequadas \u00e0s propriedades do material e \u00e0s necessidades espec\u00edficas de cada projeto.<\/span><\/p>\n

    Com o SoilTech, a MetaFLO desenvolve solu\u00e7\u00f5es para melhorar o desempenho de solos e contribuir para a efici\u00eancia operacional de projetos de infraestrutura.<\/span><\/p>\n

    Sua opera\u00e7\u00e3o enfrenta desafios com estradas n\u00e3o pavimentadas e tr\u00e1fego pesado?<\/b><\/p>\n

    Entre em contato com a equipe t\u00e9cnica da MetaFLO para conhecer as possibilidades de aplica\u00e7\u00e3o do SoilTech em seu projeto.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

    Forestry roads are among the most demanding components of the wood and pulp industry’s transportation infrastructure. Subjected to daily heavy vehicle traffic, these roads must maintain reliable operating conditions, even in areas with low-bearing-capacity soils and seasonal weather patterns alternating between dry periods and heavy rainfall. When road structures cannot withstand these conditions, problems such…<\/p>","protected":false},"author":20,"featured_media":900626,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_joinchat":[],"footnotes":""},"categories":[23],"tags":[167,145],"class_list":["post-900623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-soil-stabilization","tag-soiltech"],"acf":[],"yoast_head":"\nSoil Stabilization for Forestry Roads | SoilTech<\/title>\n<meta name=\"description\" content=\"Discover how SoilTech improved sandy soil bearing capacity, achieving a 207.1% CBR in laboratory testing for heavy-duty forestry road applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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