ï»?!doctype html> 混凝土膨胀剂的作用机理与主要用é€?- 中山市民众镇¿U‘宝特种建材åŽ?/title> <meta name="Keywords" content=""> <link rel="stylesheet" href="/template/kebao/css/base.css" type="text/css" media="all" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"></div> <div class="wrap2"> <div class="toppic"> <img src="/template/kebao/img/400.jpg" width="1304" height="33" /> </div> <div id="header"> <div class="hwrap"> <div class="logo"><img src="/uploads/logo/20140211024810.gif" alt="中山市民众镇¿U‘宝特种建材åŽ?/></div> <ul class="nav"> <li><a href="/">首页</a></li> <li><a href="/about/">走进¿U‘宝</a></li> <li><a href="/news/">¿U‘宝资讯</a></li> <li><a href="/supply/">产品展示</a></li> <li><a href="/download/">工程案例</a></li> <li><a href="/news/jszc/">技术支æŒ?/a></li> <li><a href="/about/about5.html">客户留言</a></li> <li><a href="/contact/">联系我们</a></li> </ul> </div> </div> <div class="qbanner"><img 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src="/template/kebao/img/a.jpg" width="15" height="15">地址åQšå¹¿ä¸œçœä¸­å±±å¸‚民众镇多宝工业åŒ?/div> </div> </div> <div class="qmainr"> <div class="qtitle"><h2>新闻中心</h2><span>当前位置åQ?a href="/">首页</a> > <a href="/news/jszc/">技术支æŒ?/a> > 详细内容</span></div> <div class="clear"></div> <div class="info"> <div class="article_title">混凝土膨胀剂的作用机理与主要用é€?/div> <div class="article_time">发布旉™—´ : 2014-04-23</div> <div class="edit_line1"><p class="MsoNormal" style="color:#515151;font-family:宋体;font-size:16px;background-color:#FFFFFF;"> <span style="font-size:14px;color:#000000;line-height:2;">一、æ؜凝土膨胀剂作用机理:</span><span></span> </p> <span style="font-family:宋体;background-color:#FFFFFF;font-size:14px;"></span> <p class="MsoNormal" style="color:#515151;font-family:宋体;font-size:16px;background-color:#FFFFFF;"> <span style="color:#000000;line-height:2;">  混凝土膨胀剂是补偿收羃的理æƒÏxæ–™ï¼Œòq²ç¾ƒå’Œæ¸©å·®æ”¶¾~©æ˜¯ä¸»è¦åŽŸå› ã€‚加入到ç ég¸­åQŒæ‹Œæ°´åŽç”Ÿæˆå¤§é‡è†¨èƒ€æ€§ç»“晶水化物åQŒä‹É其äñ”生适度的膨胀åQŒåœ¨é’¢ç­‹å’Œé‚»ä½çš„¾U¦æŸä¸‹ï¼Œäº§ç”Ÿçš„膨胀能è{为压应力åQŒè¿™ä¸€åº”力可抵消砼在硬化中的收¾~©æ‹‰åº”力åQŒå› è€Œå‡ž®‘了裂缝。防水性能混凝土的防水主要是提高自íw«çš„密实和增水性,以满­‘›_…¶æŠ—渗性和不透水性。但是由于砼存在收羃åQŒè€Œæ”¶¾~©æ‰€å¼•è“v的应力,­‘³ä»¥ä½¿ç»“æž„äñ”生变形,以至裂缝。由于开裂就使æ؜凝土防水失去了一道最æ ÒŽœ¬çš„防¾Uѝ€‚这是徏½{‘物渗漏的主要原因。结晶物不断填充孔隙åQŒä¿ƒä½¿ç ¼å†…部密实åQŒæé«˜ç ¼çš„防渗抗酸、抗¼„±ã€æŠ—化学侵蚀能力和微膨胀能力åQŒæœ¬å‰‚能辑ֈ°è†¨èƒ€å‰‚、防水剂的各™åҎŒ‡æ ‡ã€‚一¿Uå¡‘性期膨胀与硬化期膨胀的双重效应,充分补偿混凝土收¾~©ï¼Œž®æŽºé‡ä¸”兼有膨胀、减水、防渗、抗裂等复合功能的æ؜凝土外加剂。它按一定比例掺入æ؜凝土或砂‹¹†ä¸­åQ?/span><span style="color:#000000;line-height:2;"> </span><span style="color:#000000;line-height:2;">可在限制的条件下产生膨胀应力åQŒä»Žè€Œè“v到补偿收¾~©ï¼Œé˜²æ­¢æ··å‡åœŸäñ”生裂¾~ï¼Œ</span><span style="color:#000000;line-height:2;"> </span><span style="color:#000000;line-height:2;">提高混凝土抗渗能力的作用ã€?/span><span style="color:#000000;line-height:2;"> </span><span style="color:#000000;line-height:2;">òq¶å¯½{‰é‡æ›¿ä»£æ°´æƒ”åQŒä¸”寚w’¢½{‹ç²˜æŽ¥åŠ›æ— ä“Q何不良媄响,寚w’¢½{‹æ— é”ˆèš€ä½œç”¨ã€?/span><span></span> </p> <span style="font-family:宋体;background-color:#FFFFFF;"></span> <p class="MsoNormal" style="color:#515151;font-family:宋体;font-size:16px;background-color:#FFFFFF;"> <span style="color:#000000;line-height:2;">  二、æ؜凝土膨胀剂主要用途:</span><span></span> </p> <span style="font-family:宋体;background-color:#FFFFFF;"></span> <p class="MsoNormal" style="color:#515151;font-family:宋体;font-size:16px;background-color:#FFFFFF;"> <span style="color:#000000;line-height:2;">  配制补偿收羃、接¾~å¡«å……æ؜凝土åQŒç”¨äºŽæŠ—裂防渗,¾l“构自防æ°ß_¼Œæ°´æ± ä¸Žåˆšæ€§é˜²æ°´å±‹é¢å·¥½E‹ï¼›é…åˆ¶è‡ªåº”力æ؜凝土åQŒç”¨äºŽæ°´æ³¥åˆ¶å“ã€?/span> </p> <p class="MsoNormal" style="color:#515151;font-family:宋体;font-size:16px;background-color:#FFFFFF;"> <br /> </p> <p class="MsoNormal" style="color:#515151;font-family:宋体;font-size:16px;background-color:#FFFFFF;"> <br /> </p> <p style="color:#f000"><div>上一æ?<a 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