{"id":977,"date":"2024-02-04T13:48:19","date_gmt":"2024-02-04T05:48:19","guid":{"rendered":"https:\/\/www.joyforce.com\/?p=977"},"modified":"2024-02-05T13:27:52","modified_gmt":"2024-02-05T05:27:52","slug":"types-and-characteristics-of-polycarboxylate-superplasticizers","status":"publish","type":"post","link":"https:\/\/www.joyforce.com\/fr\/blogs\/types-and-characteristics-of-polycarboxylate-superplasticizers.html","title":{"rendered":"Types et caract\u00e9ristiques des superplastifiants \u00e0 base de polycarboxylate"},"content":{"rendered":"<p>1. Type de r\u00e9duction d'eau \u00e9lev\u00e9e : (1) Taux de r\u00e9duction d'eau ultra-\u00e9lev\u00e9, le taux de r\u00e9duction d'eau peut atteindre 40% ; (2) L'effet d'am\u00e9lioration est \u00e9vident, la r\u00e9sistance \u00e0 la compression 3d peut \u00eatre augment\u00e9e de 150%-200%, et la r\u00e9sistance \u00e0 la compression 28d peut \u00eatre augment\u00e9e de 40% %-70%.<\/p>\n<p>2. Type de protection contre l'affaissement \u00e9lev\u00e9 : (1) Pas de perte dans les cinq heures au maximum, et le temps de prise initial et final du b\u00e9ton est prolong\u00e9 de 5 \u00e0 12 heures selon les exigences T ; (2) Il est compos\u00e9 d'un agent r\u00e9ducteur d'eau polycarboxylate \u00e0 haute teneur en eau. Il peut mieux r\u00e9pondre aux performances de travail et aux propri\u00e9t\u00e9s m\u00e9caniques du b\u00e9ton apr\u00e8s durcissement ; (3) Il convient au b\u00e9ton de masse, au b\u00e9ton autopla\u00e7ant, au b\u00e9ton \u00e0 affaissement moyen et faible, au b\u00e9ton \u00e0 haute r\u00e9sistance, etc. pour la construction dans des conditions climatiques chaudes.<\/p>\n<p>3. Agent anti-boue \u00e0 lib\u00e9ration lente : (1) Excellente r\u00e9sistance \u00e0 la boue, effet significatif sur le sable et le gravier \u00e0 forte teneur en boue et en poudre de pierre, et r\u00e9duction de la perte d'affaissement du b\u00e9ton ; (2) Convient aux mat\u00e9riaux de sable et de gravier contenant de la boue et de la poudre de pierre C'est le mat\u00e9riau de base des adjuvants pour b\u00e9ton composite pour les projets de pompage de b\u00e9ton \u00e0 grand volume et les composants en b\u00e9ton pr\u00e9fabriqu\u00e9.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-970\" src=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9.png\" alt=\"\" width=\"1274\" height=\"797\" srcset=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9.png 1274w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9-300x188.png 300w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9-1024x641.png 1024w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9-768x480.png 768w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9-18x12.png 18w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/3-9-600x375.png 600w\" sizes=\"(max-width: 1274px) 100vw, 1274px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>1. Type de r\u00e9duction d'eau \u00e9lev\u00e9e : (1) Taux de r\u00e9duction d'eau ultra-\u00e9lev\u00e9, le taux de r\u00e9duction d'eau peut atteindre 40% ; (2) L'effet d'am\u00e9lioration est \u00e9vident, la r\u00e9sistance \u00e0 la compression 3d peut \u00eatre augment\u00e9e de 150%-200%, et la r\u00e9sistance \u00e0 la compression 28d peut \u00eatre augment\u00e9e de 40% %-70%. 2. Type de protection contre l'affaissement \u00e9lev\u00e9 : (1) Pas de perte dans les cinq heures \u00e0 [...]<\/p>","protected":false},"author":1,"featured_media":970,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-977","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Types and characteristics of polycarboxylate superplasticizers - JOYFORCE INDUSTRIAL<\/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:\/\/www.joyforce.com\/fr\/blogs\/types-and-characteristics-of-polycarboxylate-superplasticizers.html\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Types and characteristics of polycarboxylate superplasticizers - JOYFORCE INDUSTRIAL\" \/>\n<meta property=\"og:description\" content=\"1. 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