{"id":22122,"date":"2026-06-07T21:35:57","date_gmt":"2026-06-07T17:35:57","guid":{"rendered":"https:\/\/www.petroacc.com\/quest-ce-que-lessai-ponctuel-de-bitume"},"modified":"2026-06-07T21:35:57","modified_gmt":"2026-06-07T17:35:57","slug":"quest-ce-que-lessai-ponctuel-de-bitume","status":"publish","type":"post","link":"https:\/\/www.petroacc.com\/fr\/quest-ce-que-lessai-ponctuel-de-bitume","title":{"rendered":"QU&rsquo;EST-CE QUE L&rsquo;ESSAI PONCTUEL DE BITUME ?"},"content":{"rendered":"<p>Le SPOT TEST du bitume est une m\u00e9thode rapide et efficace dans le laboratoire de contr\u00f4le de la qualit\u00e9. Le r\u00e9sultat positif du SPOT TEST indique que le bitume a \u00e9t\u00e9 produit avec une chaleur excessive ou, en d&rsquo;autres termes, que le bitume produit a br\u00fbl\u00e9. Un r\u00e9sultat n\u00e9gatif indique que la production et le stockage de l&rsquo;\u00e9chantillon de bitume concern\u00e9 ont \u00e9t\u00e9 effectu\u00e9s \u00e0 des temp\u00e9ratures normales et standard.  <\/p>\n<p>La m\u00e9thode de ce test est la suivante : nous pla\u00e7ons 2 grammes de l&rsquo;\u00e9chantillon de <a href=\"https:\/\/www.petroacc.com\/what-is-bitumen\">bitume<\/a> dans le flacon et, en le pla\u00e7ant sur une chaleur douce, nous laissons l&rsquo;\u00e9chantillon s&rsquo;\u00e9taler en une fine couche. Ensuite, en ajoutant 10,2 ml du solvant souhait\u00e9 \u00e0 l&rsquo;aide d&rsquo;une pipette et en couvrant le couvercle du ballon, agiter rapidement l&rsquo;\u00e9chantillon pendant 5 secondes.<span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\" data-number-of-phrases=\"2\"><span class=\"Q4iAWc\">Ensuite, nous le pla\u00e7ons sur un bain-marie bouillant et nous agitons la solution souhait\u00e9e pendant 5 secondes toutes les minutes.<\/span><\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"1\" data-number-of-phrases=\"2\"><span class=\"Q4iAWc\">Ce processus se poursuit jusqu&rsquo;\u00e0 l&rsquo;obtention d&rsquo;une solution uniforme.<\/span><\/span> <\/p>\n<p><span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\" data-number-of-phrases=\"4\"><span class=\"Q4iAWc\">Apr\u00e8s avoir obtenu une solution uniforme, refroidissez l&rsquo;\u00e9chantillon souhait\u00e9 \u00e0 une temp\u00e9rature de 32 degr\u00e9s Celsius.<\/span><\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"1\" data-number-of-phrases=\"4\"><span class=\"Q4iAWc\">Ensuite, \u00e0 l&rsquo;aide d&rsquo;un compte-gouttes, nous d\u00e9posons une goutte sur du papier filtre Whatman n\u00b0 50.<\/span><\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"2\" data-number-of-phrases=\"4\"><span class=\"Q4iAWc\">Apr\u00e8s 5 minutes, si la goutte est observ\u00e9e comme une tache brune avec un noyau de masse sombre ou un noyau avec un halo au centre, le r\u00e9sultat du test est positif.<\/span><\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"3\" data-number-of-phrases=\"4\"><span class=\"Q4iAWc\">Et dans le cas de taches brunes circulaires uniformes, le r\u00e9sultat est n\u00e9gatif.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;22122&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;0&quot;,&quot;greet&quot;:&quot;&quot;,&quot;legend&quot;:&quot;5\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;16&quot;,&quot;title&quot;:&quot;QU\\u0026#039;EST-CE QUE L\\u0026#039;ESSAI PONCTUEL DE BITUME ?&quot;,&quot;width&quot;:&quot;80&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 80px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 0px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 16px; height: 16px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 12.8px;\">\n            5\/5 - (1 vote)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Le SPOT TEST du bitume est une m\u00e9thode rapide et efficace dans le laboratoire de contr\u00f4le de la qualit\u00e9. Le r\u00e9sultat positif du SPOT TEST indique que le bitume a \u00e9t\u00e9 produit avec une chaleur excessive ou, en d&rsquo;autres termes, que le bitume produit a br\u00fbl\u00e9. Un r\u00e9sultat n\u00e9gatif indique que la production et le stockage [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":17470,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[1074,988],"tags":[1836],"class_list":["post-22122","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-bitume-2","tag-spot-test"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>QU&#039;EST-CE QUE L&#039;ESSAI PONCTUEL DE BITUME ? | Aras Petrochemical Co.<\/title>\n<meta name=\"description\" content=\"QU&#039;EST-CE QUE LE TEST DU BITUMEN L&#039;un des \u00e9l\u00e9ments importants qu&#039;il faut v\u00e9rifier pour le bitume et sur le site Web de PETRO-ACC, nous avons expliqu\u00e9 pour vous cette m\u00e9thode d&#039;essai.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.petroacc.com\/fr\/quest-ce-que-lessai-ponctuel-de-bitume\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"QU&#039;EST-CE QUE L&#039;ESSAI PONCTUEL DE BITUME ? 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