{"id":5030,"date":"2026-08-17T02:46:00","date_gmt":"2026-08-17T02:46:00","guid":{"rendered":"https:\/\/roadskymarking.com\/?p=5030"},"modified":"2026-08-17T02:47:01","modified_gmt":"2026-08-17T02:47:01","slug":"aashto-m247-glass-beads-for-road-marking","status":"publish","type":"post","link":"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html","title":{"rendered":"Perlas de vidrio AASHTO M247 para se\u00f1alizaci\u00f3n vial"},"content":{"rendered":"<p>Si trabajas con <strong><a style=\"text-decoration: underline;\" href=\"https:\/\/roadskymarking.com\/es\/road-marking-material\/\" data-type=\"link\" data-id=\"https:\/\/roadskymarking.com\/road-marking-material\" target=\"_blank\" rel=\"noreferrer noopener\">materiales de se\u00f1alizaci\u00f3n vial<\/a><\/strong>, probablemente te hayas encontrado con las perlas de vidrio AASHTO M247. Son peque\u00f1as perlas de vidrio, pero desempe\u00f1an un papel muy importante a la hora de hacer que las marcas viales sean m\u00e1s visibles, sobre todo por la noche.<\/p>\n\n\n\n<p>En t\u00e9rminos sencillos, la norma AASHTO M 247 es una especificaci\u00f3n relativa a las perlas de vidrio que se esparcen o se pulverizan sobre las marcas viales para crear una se\u00f1alizaci\u00f3n vial retrorreflectante. La versi\u00f3n actual es la AASHTO M 247-13 (2022), que es la edici\u00f3n vigente y reaprobada de la especificaci\u00f3n.<\/p>\n\n\n\n<p>Entonces, \u00bfqu\u00e9 son exactamente estas cuentas de cristal, c\u00f3mo funcionan y qu\u00e9 hay que tener en cuenta a la hora de comprarlas? Ve\u00e1moslo m\u00e1s de cerca.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/What-Are-AASHTO-M247-Glass-Beads.jpg\" alt=\"\u00bfQu\u00e9 son las perlas de vidrio AASHTO M247?\" class=\"wp-image-5032\" srcset=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/What-Are-AASHTO-M247-Glass-Beads.jpg 600w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/What-Are-AASHTO-M247-Glass-Beads-400x267.jpg 400w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/What-Are-AASHTO-M247-Glass-Beads-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#What_Are_AASHTO_M247_Glass_Beads\" >\u00bfQu\u00e9 son las perlas de vidrio AASHTO M247?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#How_Do_Glass_Beads_Make_Road_Markings_Reflective\" >\u00bfC\u00f3mo consiguen las perlas de vidrio que las marcas viales sean reflectantes?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#AASHTO_M247_Glass_Bead_Types\" >Tipos de perlas de vidrio seg\u00fan la norma AASHTO M247<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Important_Quality_Requirements\" >Requisitos importantes de calidad<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#1_Refractive_Index\" >1. \u00cdndice de refracci\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#2_Roundness\" >2. Redondez<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#3_Clean_and_Transparent_Glass\" >3. Cristal limpio y transparente<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#4_Moisture_Resistance\" >4. Resistencia a la humedad<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#5_Bead_Gradation\" >5. Gradaci\u00f3n de las cuentas<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Where_Are_AASHTO_M247_Glass_Beads_Used\" >\u00bfD\u00f3nde se utilizan las perlas de vidrio AASHTO M247?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Drop-On_Glass_Beads_vs_Premix_Glass_Beads\" >Perlas de vidrio \u00abDrop-On\u00bb frente a perlas de vidrio premezcladas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Why_Bead_Embedment_Matters\" >Por qu\u00e9 es importante la incorporaci\u00f3n de microesferas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#How_to_Choose_the_Right_AASHTO_M247_Glass_Beads\" >C\u00f3mo elegir las perlas de vidrio adecuadas seg\u00fan la norma AASHTO M247<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#What_type_of_road_marking_material_are_you_using\" >\u00bfQu\u00e9 tipo de material de se\u00f1alizaci\u00f3n vial utilizas?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#What_bead_type_does_the_project_specification_require\" >\u00bfQu\u00e9 tipo de cuenta exige el pliego de condiciones del proyecto?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#What_level_of_nighttime_visibility_is_required\" >\u00bfQu\u00e9 nivel de visibilidad nocturna se requiere?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Will_the_beads_be_used_in_a_humid_environment\" >\u00bfSe van a utilizar las cuentas en un entorno h\u00famedo?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Can_the_supplier_provide_test_reports\" >\u00bfPuede el proveedor facilitar informes de pruebas?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/#Final_Thoughts\" >Reflexiones finales<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_AASHTO_M247_Glass_Beads\"><\/span>\u00bfQu\u00e9 son las perlas de vidrio AASHTO M247?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Las perlas de vidrio AASHTO M247 son part\u00edculas de vidrio esf\u00e9ricas y transparentes que se utilizan con materiales de se\u00f1alizaci\u00f3n vial, tales como <strong><a href=\"https:\/\/roadskymarking.com\/es\/road-marking-paint\/\" data-type=\"link\" data-id=\"https:\/\/roadskymarking.com\/road-marking-paint\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">pintura de tr\u00e1fico<\/a><\/strong>, <strong><a href=\"https:\/\/roadskymarking.com\/es\/thermoplastic-road-marking-paint.html\/\" data-type=\"link\" data-id=\"https:\/\/roadskymarking.com\/thermoplastic-road-marking-paint.html\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">termopl\u00e1stico<\/a><\/strong>, y otros sistemas de se\u00f1alizaci\u00f3n vial.<\/p>\n\n\n\n<p>Su tarea principal es mejorar el <strong><a href=\"https:\/\/roadskymarking.com\/es\/7-factors-that-affect-road-marking-line-reflectivity.html\/\" data-type=\"link\" data-id=\"https:\/\/roadskymarking.com\/7-factors-that-affect-road-marking-line-reflectivity.html\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">retrorreflectividad de las marcas viales<\/a><\/strong>.<\/p>\n\n\n\n<p>Cuando los faros de un veh\u00edculo iluminan una se\u00f1alizaci\u00f3n vial, las perlas de vidrio captan y redirigen parte de esa luz hacia el conductor. Esto hace que las l\u00edneas blancas y amarillas de la carretera se vean mucho mejor en condiciones de poca luz.<\/p>\n\n\n\n<p>Esto es especialmente importante en autopistas, v\u00edas r\u00e1pidas, cruces, pasos de peatones y otras v\u00edas en las que la visibilidad nocturna es fundamental.<\/p>\n\n\n\n<p>La FHWA describe las perlas de vidrio que cumplen con la norma AASHTO M247 como una soluci\u00f3n est\u00e1ndar del sector y rentable para dotar de retrorreflectividad a las marcas viales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Do_Glass_Beads_Make_Road_Markings_Reflective\"><\/span>\u00bfC\u00f3mo consiguen las perlas de vidrio que las marcas viales sean reflectantes?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>En realidad, el principio es bastante sencillo.<\/p>\n\n\n\n<p>Una cuenta de cristal act\u00faa como una min\u00fascula lente \u00f3ptica.<\/p>\n\n\n\n<p>Cuando la luz de los faros de un veh\u00edculo incide sobre la banda reflectante, la superficie curvada del cristal la desv\u00eda y contribuye a que se refleje de nuevo hacia la fuente de luz. Al dirigirse la luz de nuevo hacia el conductor, la se\u00f1alizaci\u00f3n vial se ve brillante por la noche.<\/p>\n\n\n\n<p>Sin perlas de vidrio, una l\u00ednea pintada en la carretera puede seguir siendo visible durante el d\u00eda, pero su visibilidad nocturna puede ser mucho menor.<\/p>\n\n\n\n<p>Por eso, a las cuentas de cristal se las suele llamar <strong><a href=\"https:\/\/roadskymarking.com\/es\/glass-beads.html\/\" data-type=\"link\" data-id=\"https:\/\/roadskymarking.com\/glass-beads.html\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">perlas de vidrio retrorreflectantes o perlas de vidrio para se\u00f1alizaci\u00f3n vial<\/a><\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/AASHTO-M247-Glass-Bead-Types.jpg\" alt=\"Tipos de perlas de vidrio seg\u00fan la norma AASHTO M247\" class=\"wp-image-5033\" srcset=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/AASHTO-M247-Glass-Bead-Types.jpg 600w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/AASHTO-M247-Glass-Bead-Types-400x267.jpg 400w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/AASHTO-M247-Glass-Bead-Types-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"AASHTO_M247_Glass_Bead_Types\"><\/span>Tipos de perlas de vidrio seg\u00fan la norma AASHTO M247<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Un aspecto que puede resultar confuso a la hora de comprar perlas de vidrio conforme a la norma AASHTO M247 son los distintos tipos de perlas.<\/p>\n\n\n\n<p>La especificaci\u00f3n establece lo siguiente:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tipo 0<\/strong> \u2013 gradaci\u00f3n uniforme<\/li>\n\n\n\n<li><strong>Tipo 1<\/strong> \u2013 gradaci\u00f3n est\u00e1ndar<\/li>\n\n\n\n<li><strong>Tipo 2<\/strong> \u2013 gradaci\u00f3n modificada<\/li>\n\n\n\n<li><strong>Tipo 3<\/strong> \u2013 gradaci\u00f3n modificada<\/li>\n\n\n\n<li><strong>Tipo 4<\/strong> \u2013 gradaci\u00f3n modificada<\/li>\n\n\n\n<li><strong>Tipo 5<\/strong> \u2013 gradaci\u00f3n modificada<\/li>\n<\/ul>\n\n\n\n<p>Los distintos tipos se diferencian principalmente por la distribuci\u00f3n granulom\u00e9trica, o gradaci\u00f3n, de las perlas.<\/p>\n\n\n\n<p>Por ejemplo, las perlas m\u00e1s peque\u00f1as se suelen utilizar en aplicaciones en las que se requiere una gradaci\u00f3n m\u00e1s fina, mientras que las perlas m\u00e1s grandes pueden resultar \u00fatiles para aplicaciones en las que se busca una mayor exposici\u00f3n de las perlas y una mayor durabilidad.<\/p>\n\n\n\n<p>Por lo tanto, no te limites a pedirle a un proveedor \u201cperlas de vidrio AASHTO M247\u201d. Es mejor especificar el tipo y la granulometr\u00eda necesarios en funci\u00f3n de tu sistema de se\u00f1alizaci\u00f3n vial y de las especificaciones del proyecto.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Important_Quality_Requirements\"><\/span>Requisitos importantes de calidad<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La norma AASHTO M247 no se limita \u00fanicamente al tama\u00f1o de los gr\u00e1nulos. Hay varias propiedades que son importantes para garantizar un rendimiento constante.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Refractive_Index\"><\/span>1. \u00cdndice de refracci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Una de las propiedades m\u00e1s importantes es el \u00edndice de refracci\u00f3n.<\/p>\n\n\n\n<p>La norma AASHTO M247 especifica un \u00edndice de refracci\u00f3n de entre 1,50 y 1,55 aproximadamente para las perlas de vidrio.<\/p>\n\n\n\n<p>El \u00edndice de refracci\u00f3n influye en la eficacia con la que la luz penetra y se propaga a trav\u00e9s de la cuenta.<\/p>\n\n\n\n<p>En la pr\u00e1ctica, unas buenas propiedades \u00f3pticas son esenciales si se desea una alta retrorreflectividad nocturna.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Roundness\"><\/span>2. Redondez<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La forma de la cuenta tambi\u00e9n es importante.<\/p>\n\n\n\n<p>Lo ideal es que las perlas de vidrio sean lo m\u00e1s esf\u00e9ricas posible. Los requisitos de la norma AASHTO M247 incluyen un nivel m\u00ednimo de perlas verdaderamente esf\u00e9ricas, y las especificaciones comerciales suelen indicar un m\u00ednimo de 70% de perlas verdaderamente esf\u00e9ricas.<\/p>\n\n\n\n<p>\u00bfPor qu\u00e9 es importante esto?<\/p>\n\n\n\n<p>Porque una cuenta redonda funciona m\u00e1s bien como una peque\u00f1a lente. Es posible que las part\u00edculas irregulares o rotas no ofrezcan el mismo rendimiento \u00f3ptico.<\/p>\n\n\n\n<p>Una mayor redondez tambi\u00e9n puede contribuir a que las perlas fluyan de forma m\u00e1s uniforme a trav\u00e9s del equipo de aplicaci\u00f3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Clean_and_Transparent_Glass\"><\/span>3. Cristal limpio y transparente<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Las cuentas deben estar limpias, secas y transparentes.<\/p>\n\n\n\n<p>Un exceso de burbujas, ara\u00f1azos, defectos superficiales, contaminaci\u00f3n u otras imperfecciones pueden reducir el rendimiento \u00f3ptico.<\/p>\n\n\n\n<p>Una buena perla de vidrio para se\u00f1alizaci\u00f3n vial debe tener un aspecto transparente, en lugar de turbio o muy sucio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Moisture_Resistance\"><\/span>4. Resistencia a la humedad<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La humedad puede causar problemas durante el almacenamiento y la aplicaci\u00f3n.<\/p>\n\n\n\n<p>Si los granulados absorben humedad o forman grumos, es posible que no fluyan correctamente a trav\u00e9s del dispensador de granulados. Esto puede provocar una distribuci\u00f3n desigual en la se\u00f1alizaci\u00f3n vial.<\/p>\n\n\n\n<p>La norma AASHTO M247 incluye requisitos relativos a los recubrimientos y a la resistencia a la humedad, en funci\u00f3n de las especificaciones del comprador.<\/p>\n\n\n\n<p>Por lo tanto, en el caso de proyectos en climas h\u00famedos o lluviosos, el tratamiento resistente a la humedad puede ser un factor importante a tener en cuenta.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Bead_Gradation\"><\/span>5. Gradaci\u00f3n de las cuentas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La gradaci\u00f3n indica c\u00f3mo se distribuyen los tama\u00f1os de las cuentas.<\/p>\n\n\n\n<p>Por ejemplo, la especificaci\u00f3n utiliza los tama\u00f1os de tamiz para controlar el porcentaje de material que pasa a trav\u00e9s de las diferentes aberturas de los tamices. Los distintos tipos de M247 tienen diferentes requisitos de granulometr\u00eda.<\/p>\n\n\n\n<p>Esto es importante porque el tama\u00f1o de la gota debe ajustarse al m\u00e9todo de aplicaci\u00f3n y al material de marcado.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Where-Are-AASHTO-M247-Glass-Beads-Used.jpg\" alt=\"\u00bfD\u00f3nde se utilizan las perlas de vidrio AASHTO M247?\" class=\"wp-image-5034\" srcset=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Where-Are-AASHTO-M247-Glass-Beads-Used.jpg 600w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Where-Are-AASHTO-M247-Glass-Beads-Used-400x267.jpg 400w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Where-Are-AASHTO-M247-Glass-Beads-Used-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_Are_AASHTO_M247_Glass_Beads_Used\"><\/span>\u00bfD\u00f3nde se utilizan las perlas de vidrio AASHTO M247?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Las perlas de vidrio AASHTO M247 se utilizan ampliamente en diversas aplicaciones de se\u00f1alizaci\u00f3n vial.<\/p>\n\n\n\n<p>Entre sus aplicaciones m\u00e1s habituales se encuentran:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Se\u00f1alizaci\u00f3n vial<\/li>\n\n\n\n<li>L\u00edneas de contorno<\/li>\n\n\n\n<li>L\u00edneas centrales<\/li>\n\n\n\n<li>S\u00edmbolos y flechas de se\u00f1alizaci\u00f3n vial<\/li>\n\n\n\n<li>Pasos de peatones<\/li>\n\n\n\n<li>L\u00edneas de parada<\/li>\n\n\n\n<li>Marcas de control de tr\u00e1fico<\/li>\n\n\n\n<li>Marcas viales en los aeropuertos, cuando as\u00ed se especifique<\/li>\n\n\n\n<li>Se\u00f1alizaci\u00f3n vial urbana<\/li>\n\n\n\n<li>Se\u00f1alizaci\u00f3n de autov\u00edas y autopistas<\/li>\n<\/ul>\n\n\n\n<p>Se pueden utilizar con diferentes tipos de materiales de marcado, en funci\u00f3n de los requisitos del proyecto.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drop-On_Glass_Beads_vs_Premix_Glass_Beads\"><\/span>Perlas de vidrio \u00abDrop-On\u00bb frente a perlas de vidrio premezcladas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Tambi\u00e9n te hablaremos de las perlas de vidrio \u00abdrop-on\u00bb y de las perlas de vidrio premezcladas.<\/p>\n\n\n\n<p>Los gr\u00e1nulos de aplicaci\u00f3n por goteo se aplican sobre la superficie del material de se\u00f1alizaci\u00f3n vial reci\u00e9n colocado. Los gr\u00e1nulos quedan parcialmente incrustados en la se\u00f1alizaci\u00f3n, aunque permanecen lo suficientemente expuestos como para proporcionar retrorreflectividad.<\/p>\n\n\n\n<p>Las perlas de premezcla, por su parte, se mezclan con el material de se\u00f1alizaci\u00f3n antes de su aplicaci\u00f3n.<\/p>\n\n\n\n<p>Muchos sistemas de se\u00f1alizaci\u00f3n vial utilizan una combinaci\u00f3n de tama\u00f1os de perlas y m\u00e9todos de aplicaci\u00f3n para conseguir el rendimiento deseado.<\/p>\n\n\n\n<p>El m\u00e9todo adecuado depende del tipo de material de se\u00f1alizaci\u00f3n, del equipo de aplicaci\u00f3n, de las condiciones del tr\u00e1fico y de las especificaciones del proyecto.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Why-Bead-Embedment-Matters.jpg\" alt=\"Por qu\u00e9 es importante la incorporaci\u00f3n de microesferas\" class=\"wp-image-5035\" srcset=\"https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Why-Bead-Embedment-Matters.jpg 600w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Why-Bead-Embedment-Matters-400x267.jpg 400w, https:\/\/roadskymarking.com\/wp-content\/uploads\/2026\/08\/Why-Bead-Embedment-Matters-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Bead_Embedment_Matters\"><\/span>Por qu\u00e9 es importante la incorporaci\u00f3n de microesferas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Comprar perlas de vidrio AASHTO M247 de alta calidad es solo una parte del trabajo.<\/p>\n\n\n\n<p>La forma de colocar las cuentas es igual de importante.<\/p>\n\n\n\n<p>Si las perlas quedan incrustadas a demasiada profundidad en el material de se\u00f1alizaci\u00f3n, es posible que no quede suficiente superficie de vidrio al descubierto para proporcionar una retrorreflexi\u00f3n eficaz.<\/p>\n\n\n\n<p>Si quedan demasiado elevadas respecto a la superficie, pueden ser m\u00e1s vulnerables al desgaste causado por el tr\u00e1fico y a la p\u00e9rdida.<\/p>\n\n\n\n<p>El objetivo es conseguir el nivel adecuado de incrustaci\u00f3n y exposici\u00f3n de las perlas.<\/p>\n\n\n\n<p>Esta es una de las razones por las que los contratistas con experiencia en se\u00f1alizaci\u00f3n vial prestan especial atenci\u00f3n a la temperatura de aplicaci\u00f3n, el espesor del material, la velocidad de ca\u00edda de las gotas y el equipo de aplicaci\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Choose_the_Right_AASHTO_M247_Glass_Beads\"><\/span>C\u00f3mo elegir las perlas de vidrio adecuadas seg\u00fan la norma AASHTO M247<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Si est\u00e1s buscando perlas de vidrio para un proyecto de se\u00f1alizaci\u00f3n vial, te sugiero que empieces por plantearte estas preguntas:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_type_of_road_marking_material_are_you_using\"><\/span>\u00bfQu\u00e9 tipo de material de se\u00f1alizaci\u00f3n vial utilizas?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La pintura vial, los materiales termopl\u00e1sticos y otros sistemas de se\u00f1alizaci\u00f3n pueden requerir diferentes tama\u00f1os de perlas y m\u00e9todos de aplicaci\u00f3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_bead_type_does_the_project_specification_require\"><\/span>\u00bfQu\u00e9 tipo de cuenta exige el pliego de condiciones del proyecto?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No des por sentado que el tipo 1 es siempre la opci\u00f3n correcta. Consulta primero la documentaci\u00f3n del proyecto.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_level_of_nighttime_visibility_is_required\"><\/span>\u00bfQu\u00e9 nivel de visibilidad nocturna se requiere?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Las marcas viales de mayor rendimiento pueden requerir un sistema de perlas cuidadosamente dise\u00f1ado, en lugar de limitarse a utilizar m\u00e1s perlas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Will_the_beads_be_used_in_a_humid_environment\"><\/span>\u00bfSe van a utilizar las cuentas en un entorno h\u00famedo?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Si es as\u00ed, quiz\u00e1 valga la pena plantearse un tratamiento resistente a la humedad.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_the_supplier_provide_test_reports\"><\/span>\u00bfPuede el proveedor facilitar informes de pruebas?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Esto reviste especial importancia en el caso de los proyectos de infraestructura gubernamentales, de carreteras e internacionales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Final_Thoughts\"><\/span>Reflexiones finales<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La norma AASHTO M 247 sigue siendo una de las especificaciones clave que hay que conocer a la hora de adquirir perlas de vidrio para las marcas viales. La versi\u00f3n publicada actualmente es la AASHTO M 247-13(2022), que abarca las perlas de vidrio utilizadas para producir marcas viales reflectantes.<\/p>\n\n\n\n<p>Si vas a comprar perlas de vidrio AASHTO M247 para la se\u00f1alizaci\u00f3n vial, ten en cuenta tres aspectos: el cumplimiento de las especificaciones, la calidad de las perlas y el rendimiento en la aplicaci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>If you work with road marking materials, you have probably come across AASHTO M247 glass beads. They are small glass beads, but they play a very important role in making road markings easier to see, especially at night. In simple terms, AASHTO M247 is a specification for glass beads that are dropped or sprayed onto pavement markings to create a retroreflective road marking. The current version is AASHTO M 247-13(2022), which is the reapproved current edition of the specification. So, what exactly are these glass beads, how do they work, and what should you check when buying them? Let&#8217;s take a closer look. What Are AASHTO M247 Glass Beads? AASHTO M247 glass beads are transparent, spherical glass particles used with pavement marking materials such as traffic paint, thermoplastic, and other road marking systems. Their main job is to improve the retroreflectivity of road markings. When a vehicle&#8217;s headlights shine on a road marking, the glass beads capture and redirect part &#8230;<\/p>","protected":false},"author":1,"featured_media":5032,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-5030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AASHTO M247 Glass Beads for Road Marking - Roadsky<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AASHTO M247 Glass Beads for Road Marking - Roadsky\" \/>\n<meta property=\"og:description\" content=\"If you work with road marking materials, you have probably come across AASHTO M247 glass beads. They are small glass beads, but they play a very important role in making road markings easier to see, especially at night. In simple terms, AASHTO M247 is a specification for glass beads that are dropped or sprayed onto pavement markings to create a retroreflective road marking. The current version is AASHTO M 247-13(2022), which is the reapproved current edition of the specification. So, what exactly are these glass beads, how do they work, and what should you check when buying them? Let&#8217;s take a closer look. What Are AASHTO M247 Glass Beads? AASHTO M247 glass beads are transparent, spherical glass particles used with pavement marking materials such as traffic paint, thermoplastic, and other road marking systems. Their main job is to improve the retroreflectivity of road markings. When a vehicle&#8217;s headlights shine on a road marking, the glass beads capture and redirect part ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/\" \/>\n<meta property=\"og:site_name\" content=\"Nanjing Roadsky Traffic Facility Co.,Ltd. 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They are small glass beads, but they play a very important role in making road markings easier to see, especially at night. In simple terms, AASHTO M247 is a specification for glass beads that are dropped or sprayed onto pavement markings to create a retroreflective road marking. The current version is AASHTO M 247-13(2022), which is the reapproved current edition of the specification. So, what exactly are these glass beads, how do they work, and what should you check when buying them? Let&#8217;s take a closer look. What Are AASHTO M247 Glass Beads? AASHTO M247 glass beads are transparent, spherical glass particles used with pavement marking materials such as traffic paint, thermoplastic, and other road marking systems. Their main job is to improve the retroreflectivity of road markings. When a vehicle&#8217;s headlights shine on a road marking, the glass beads capture and redirect part ...","og_url":"https:\/\/roadskymarking.com\/es\/aashto-m247-glass-beads-for-road-marking.html\/","og_site_name":"Nanjing Roadsky Traffic Facility Co.,Ltd. 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