{"id":11736,"date":"2025-12-31T11:44:47","date_gmt":"2025-12-31T11:44:47","guid":{"rendered":"https:\/\/ykmtest.com\/?post_type=product&#038;p=11736"},"modified":"2026-01-02T06:41:56","modified_gmt":"2026-01-02T06:41:56","slug":"heat-of-hydration-of-cement-calorimeters","status":"publish","type":"product","link":"https:\/\/ykmtest.com\/french\/produit\/heat-of-hydration-of-cement-calorimeters\/","title":{"rendered":"Chaleur d'hydratation du ciment Calorim\u00e8tres"},"content":{"rendered":"<p>Le calorim\u00e8tre de chaleur d'hydratation du ciment est un appareil de laboratoire de haute pr\u00e9cision con\u00e7u pour mesurer avec exactitude l'\u00e9nergie thermique lib\u00e9r\u00e9e au cours du processus d'hydratation du ciment. Ce syst\u00e8me est particuli\u00e8rement utilis\u00e9 pour d\u00e9terminer les caract\u00e9ristiques d'hydratation pr\u00e9coce et tardive des ciments Portland, hydrauliques et \u00e0 basse temp\u00e9rature. Les donn\u00e9es obtenues r\u00e9v\u00e8lent la r\u00e9activit\u00e9 chimique du ciment, le taux d'hydratation et la courbe d'\u00e9volution de la chaleur. L'appareil se compose d'un vase Dewar sous vide qui minimise les pertes de chaleur, d'une enveloppe ext\u00e9rieure isol\u00e9e, d'un syst\u00e8me d'agitation \u00e0 vitesse constante et d'un thermom\u00e8tre num\u00e9rique \u00e0 haute r\u00e9solution. Le principe fondamental de l'appareil est de mesurer la quantit\u00e9 de chaleur g\u00e9n\u00e9r\u00e9e par la r\u00e9action d'hydratation dans le m\u00e9lange ciment-eau \u00e0 travers l'augmentation de temp\u00e9rature qui en r\u00e9sulte dans le syst\u00e8me isol\u00e9. L'\u00e9chantillon est plac\u00e9 dans le r\u00e9cipient d'agitation \u00e0 l'int\u00e9rieur du vase Dewar. De l'eau est ajout\u00e9e \u00e0 une temp\u00e9rature donn\u00e9e et le m\u00e9lange est homog\u00e9n\u00e9is\u00e9 \u00e0 une vitesse constante \u00e0 l'aide de l'agitateur \u00e9lectrique int\u00e9gr\u00e9. Pendant ce temps, le thermom\u00e8tre num\u00e9rique de haute pr\u00e9cision surveille les changements de temp\u00e9rature avec une r\u00e9solution de 0,01 \u00b0C. L'augmentation de temp\u00e9rature mesur\u00e9e est convertie directement en valeur de r\u00e9f\u00e9rence. L'augmentation de temp\u00e9rature mesur\u00e9e est directement convertie en \u00e9nergie thermique en joules ou en cal\/g selon la constante d'\u00e9talonnage du syst\u00e8me. Le syst\u00e8me Dewar, avec sa construction \u00e0 double paroi sous vide, emp\u00eache presque totalement l'\u00e9change de chaleur avec l'environnement. Ainsi, pendant l'essai, la temp\u00e9rature interne est uniquement influenc\u00e9e par l'\u00e9nergie de r\u00e9action, ce qui \u00e9limine les \u00e9carts de mesure dus aux fluctuations de la temp\u00e9rature externe. Le corps ext\u00e9rieur du calorim\u00e8tre est recouvert d'une isolation thermique de haute densit\u00e9 et log\u00e9 dans une enceinte m\u00e9tallique robuste pour la protection.<\/p>","protected":false},"excerpt":{"rendered":"<p>Le calorim\u00e8tre de chaleur d'hydratation du ciment est un appareil de laboratoire de haute pr\u00e9cision qui mesure la chaleur lib\u00e9r\u00e9e pendant l'hydratation du ciment \u00e0 l'aide d'un r\u00e9cipient Dewar isol\u00e9 sous vide, d'une agitation \u00e0 vitesse constante et d'un thermom\u00e8tre \u00e0 haute r\u00e9solution. Il fournit des donn\u00e9es pr\u00e9cises sur la r\u00e9activit\u00e9 du ciment, le taux d'hydratation et l'\u00e9volution de la chaleur.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[159],"product_tag":[],"class_list":{"0":"post-11736","1":"product","2":"type-product","3":"status-publish","5":"product_cat-cement-mortar","8":"instock","9":"shipping-taxable","10":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Heat of Hydration of Cement Calorimeters - YKM TEST<\/title>\n<meta name=\"description\" content=\"Heat of Hydration of Cement Calorimeter is a high-precision laboratory device that measures the heat released during cement hydration, providing accurate data on cement reactivity, hydration rate, and heat evolution using a vacuum-insulated Dewar vessel and high-resolution thermometer.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ykmtest.com\/french\/produit\/heat-of-hydration-of-cement-calorimeters\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Heat of Hydration of Cement Calorimeters\" \/>\n<meta property=\"og:description\" content=\"Heat of Hydration of Cement Calorimeter is a high-precision laboratory device that measures the heat released during cement hydration, providing accurate data on cement reactivity, hydration rate, and heat evolution using a vacuum-insulated Dewar vessel and high-resolution thermometer.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ykmtest.com\/french\/produit\/heat-of-hydration-of-cement-calorimeters\/\" \/>\n<meta property=\"og:site_name\" content=\"YKM TEST\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-02T06:41:56+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Prix\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Disponibilit\u00e9\" \/>\n\t<meta name=\"twitter:data2\" content=\"En stock\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ykmtest.com\\\/product\\\/heat-of-hydration-of-cement-calorimeters\\\/\",\"url\":\"https:\\\/\\\/ykmtest.com\\\/product\\\/heat-of-hydration-of-cement-calorimeters\\\/\",\"name\":\"Heat of Hydration of Cement Calorimeters - 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