ï»?!DOCTYPE HTML> 冬季施工预拌混å‡åœŸé˜²å†ÀLŽªæ–?/title> <meta name="keywords" content="æ··å‡åœŸæ…拌站,æ²›_Œ—åŒæ˜Ÿ"> <meta name="description" content="æ²›_Œ—åŒæ˜Ÿæœºæ¢°æ˜¯ä¸“业的混å‡åœŸæ…拌站讑֤‡ç”Ÿäñ”厂家åQŒç”Ÿäº§PCæ…æ‹Œç«™å’Œæ ‡å‡†åž‹æ…拌站HZS180½{‰å„¿Uåž‹åïLš„æ··å‡åœŸæ…拌站讑֤‡åŠä¸“门的环ä¿åž‹æ…拌站讑֤‡å’Œç«‹è½´è¡Œæ˜Ÿå¼æ…拌机åŠåŒå§è½´å¼ºåˆ¶å¼æ··å‡åœŸæ…æ‹Œæœºã€‚æØœå‡åœŸæ…拌站选购电è¯åQ?8633480908"> <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no"> <base href="http://www.designwasp.com/"/> <!--[if lt IE 9]>     <script src="http://css3-mediaqueries-js.googlecode.com/svn/trunk/css3-mediaqueries.js"></script> <![endif]--> <link href="Untitled-2.css" rel="stylesheet" type="text/css" /> <style>#customers { font-family:"Trebuchet MS", Arial, Helvetica, sans-serif; width:100%; border-collapse:collapse; } #customers td, #customers th { font-size:1em; border:1px solid #98bf21; padding:3px 7px 2px 7px; }</style> <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;"><i id="7lz5f"><i id="7lz5f"><noframes id="7lz5f"><listing id="7lz5f"></listing></noframes></i></i><var id="7lz5f"><strike id="7lz5f"><listing id="7lz5f"><i id="7lz5f"></i></listing></strike></var><dl id="7lz5f"></dl><progress id="7lz5f"><ins id="7lz5f"><noframes id="7lz5f"><menuitem id="7lz5f"></menuitem></noframes></ins></progress><menuitem id="7lz5f"></menuitem><ruby id="7lz5f"><th id="7lz5f"><ins id="7lz5f"><noframes id="7lz5f"></noframes></ins></th></ruby><i id="7lz5f"></i><cite id="7lz5f"><ruby id="7lz5f"></ruby></cite><dl id="7lz5f"><progress id="7lz5f"><del id="7lz5f"><noframes id="7lz5f"></noframes></del></progress></dl><dl id="7lz5f"></dl><ins id="7lz5f"><span id="7lz5f"></span></ins><th id="7lz5f"></th><ruby id="7lz5f"><progress id="7lz5f"></progress></ruby><th id="7lz5f"></th><i id="7lz5f"></i><video id="7lz5f"><listing id="7lz5f"></listing></video><address id="7lz5f"></address><address id="7lz5f"></address><ruby id="7lz5f"><address id="7lz5f"></address></ruby><video id="7lz5f"><thead id="7lz5f"><ruby id="7lz5f"><address id="7lz5f"></address></ruby></thead></video><noframes id="7lz5f"></noframes><strike id="7lz5f"><progress id="7lz5f"></progress></strike><ruby id="7lz5f"><address id="7lz5f"><ins id="7lz5f"><span id="7lz5f"></span></ins></address></ruby><cite id="7lz5f"><video id="7lz5f"></video></cite><i id="7lz5f"></i><strike id="7lz5f"></strike><ins id="7lz5f"></ins><ins id="7lz5f"><span id="7lz5f"><var id="7lz5f"><strike id="7lz5f"></strike></var></span></ins><i id="7lz5f"><noframes id="7lz5f"><cite id="7lz5f"><span id="7lz5f"></span></cite></noframes></i><i id="7lz5f"></i><video id="7lz5f"><listing id="7lz5f"><ruby id="7lz5f"><th id="7lz5f"></th></ruby></listing></video><var id="7lz5f"><dl id="7lz5f"></dl></var><var id="7lz5f"></var><address id="7lz5f"></address><menuitem id="7lz5f"></menuitem><th id="7lz5f"></th><i id="7lz5f"></i><listing id="7lz5f"><del id="7lz5f"></del></listing><strike id="7lz5f"><progress id="7lz5f"><del id="7lz5f"><noframes id="7lz5f"></noframes></del></progress></strike><var id="7lz5f"><strike id="7lz5f"></strike></var><th id="7lz5f"><cite id="7lz5f"></cite></th><menuitem id="7lz5f"><strike id="7lz5f"><listing id="7lz5f"><i id="7lz5f"></i></listing></strike></menuitem><cite id="7lz5f"><video id="7lz5f"></video></cite><th id="7lz5f"><del id="7lz5f"></del></th><ruby id="7lz5f"><progress id="7lz5f"></progress></ruby><listing id="7lz5f"><i id="7lz5f"></i></listing><ruby id="7lz5f"><address id="7lz5f"><del id="7lz5f"><noframes id="7lz5f"></noframes></del></address></ruby><menuitem id="7lz5f"></menuitem><th id="7lz5f"><cite id="7lz5f"></cite></th><span id="7lz5f"><menuitem id="7lz5f"><dl id="7lz5f"><address id="7lz5f"></address></dl></menuitem></span> <listing id="7lz5f"><del id="7lz5f"><th id="7lz5f"><ins id="7lz5f"></ins></th></del></listing><ruby id="7lz5f"><address id="7lz5f"><ins id="7lz5f"><noframes id="7lz5f"></noframes></ins></address></ruby><var id="7lz5f"></var><del id="7lz5f"></del><ruby id="7lz5f"><address id="7lz5f"><ins id="7lz5f"><span id="7lz5f"></span></ins></address></ruby><ins id="7lz5f"><span id="7lz5f"></span></ins><var id="7lz5f"><video id="7lz5f"></video></var><listing id="7lz5f"></listing><address id="7lz5f"><ins id="7lz5f"></ins></address><var id="7lz5f"><strike id="7lz5f"></strike></var><ins id="7lz5f"></ins><strike id="7lz5f"></strike><menuitem id="7lz5f"><strike id="7lz5f"></strike></menuitem><ins id="7lz5f"><video id="7lz5f"><menuitem id="7lz5f"><dl id="7lz5f"></dl></menuitem></video></ins><noframes id="7lz5f"></noframes><address id="7lz5f"><ins id="7lz5f"><noframes id="7lz5f"><var id="7lz5f"></var></noframes></ins></address><ruby id="7lz5f"><progress id="7lz5f"></progress></ruby><address id="7lz5f"><ins id="7lz5f"><span id="7lz5f"><var id="7lz5f"></var></span></ins></address><i id="7lz5f"><address id="7lz5f"></address></i><ins id="7lz5f"><span id="7lz5f"></span></ins><dl id="7lz5f"></dl><noframes id="7lz5f"><var id="7lz5f"></var></noframes><ruby id="7lz5f"></ruby><address id="7lz5f"></address><ins id="7lz5f"></ins><noframes id="7lz5f"><menuitem id="7lz5f"><dl id="7lz5f"><progress id="7lz5f"></progress></dl></menuitem></noframes><thead id="7lz5f"><ruby id="7lz5f"><address id="7lz5f"><ins id="7lz5f"></ins></address></ruby></thead><ruby id="7lz5f"><address id="7lz5f"><del id="7lz5f"><noframes id="7lz5f"></noframes></del></address></ruby><dl id="7lz5f"><progress id="7lz5f"><del id="7lz5f"><noframes id="7lz5f"></noframes></del></progress></dl><span id="7lz5f"><menuitem id="7lz5f"></menuitem></span><span id="7lz5f"><menuitem id="7lz5f"></menuitem></span><i id="7lz5f"><noframes id="7lz5f"><cite id="7lz5f"><strike id="7lz5f"></strike></cite></noframes></i><video id="7lz5f"><thead id="7lz5f"></thead></video><noframes id="7lz5f"><ins id="7lz5f"><span id="7lz5f"><menuitem id="7lz5f"></menuitem></span></ins></noframes><listing id="7lz5f"></listing><address id="7lz5f"></address><i id="7lz5f"><th id="7lz5f"><cite id="7lz5f"><video id="7lz5f"></video></cite></th></i><var id="7lz5f"></var><listing id="7lz5f"></listing><span id="7lz5f"></span><listing id="7lz5f"></listing><noframes id="7lz5f"><var id="7lz5f"></var></noframes><video id="7lz5f"></video><cite id="7lz5f"></cite><span id="7lz5f"><menuitem id="7lz5f"><ruby id="7lz5f"><address id="7lz5f"></address></ruby></menuitem></span><video id="7lz5f"><thead id="7lz5f"></thead></video><noframes id="7lz5f"></noframes><span id="7lz5f"><menuitem id="7lz5f"><dl id="7lz5f"><progress id="7lz5f"></progress></dl></menuitem></span><menuitem id="7lz5f"><dl id="7lz5f"></dl></menuitem><menuitem id="7lz5f"><dl id="7lz5f"></dl></menuitem> <del id="7lz5f"></del><video id="7lz5f"><thead id="7lz5f"><ruby id="7lz5f"><address id="7lz5f"></address></ruby></thead></video><th id="7lz5f"><var id="7lz5f"><video id="7lz5f"><thead id="7lz5f"></thead></video></var></th><ruby id="7lz5f"><address id="7lz5f"><ins id="7lz5f"><span id="7lz5f"></span></ins></address></ruby><thead id="7lz5f"></thead><ins id="7lz5f"><span id="7lz5f"></span></ins><listing id="7lz5f"><i id="7lz5f"><th id="7lz5f"><cite id="7lz5f"></cite></th></i></listing><video id="7lz5f"></video><ins id="7lz5f"><video id="7lz5f"></video></ins><dl id="7lz5f"></dl><ruby id="7lz5f"><address id="7lz5f"></address></ruby><del id="7lz5f"></del><ins id="7lz5f"></ins><ins id="7lz5f"></ins><th id="7lz5f"><cite id="7lz5f"><video id="7lz5f"><thead id="7lz5f"></thead></video></cite></th><strike id="7lz5f"></strike><progress id="7lz5f"><del id="7lz5f"></del></progress><th id="7lz5f"><var id="7lz5f"></var></th><del id="7lz5f"></del><span id="7lz5f"></span><var id="7lz5f"></var><video id="7lz5f"><listing id="7lz5f"><ruby id="7lz5f"><address id="7lz5f"></address></ruby></listing></video><var id="7lz5f"></var><i id="7lz5f"><th id="7lz5f"></th></i><thead id="7lz5f"><i id="7lz5f"><address id="7lz5f"><ins id="7lz5f"></ins></address></i></thead><video id="7lz5f"><thead id="7lz5f"><dl id="7lz5f"><progress id="7lz5f"></progress></dl></thead></video><thead id="7lz5f"></thead><ins id="7lz5f"></ins><thead id="7lz5f"><i id="7lz5f"><th id="7lz5f"><cite id="7lz5f"></cite></th></i></thead><ins id="7lz5f"></ins><span id="7lz5f"><menuitem id="7lz5f"><strike id="7lz5f"><progress id="7lz5f"></progress></strike></menuitem></span><th id="7lz5f"><ins id="7lz5f"><span id="7lz5f"><menuitem id="7lz5f"></menuitem></span></ins></th><ruby id="7lz5f"></ruby><ruby id="7lz5f"></ruby><progress id="7lz5f"><del id="7lz5f"><noframes id="7lz5f"><var id="7lz5f"></var></noframes></del></progress><video id="7lz5f"><thead id="7lz5f"></thead></video><ins id="7lz5f"><span id="7lz5f"></span></ins><th id="7lz5f"></th><noframes id="7lz5f"><var id="7lz5f"><video id="7lz5f"><listing id="7lz5f"></listing></video></var></noframes><strike id="7lz5f"><listing id="7lz5f"></listing></strike><ins id="7lz5f"></ins><th id="7lz5f"></th><dl id="7lz5f"><progress id="7lz5f"></progress></dl><th id="7lz5f"><ins id="7lz5f"><span id="7lz5f"><menuitem id="7lz5f"></menuitem></span></ins></th><cite id="7lz5f"></cite><thead id="7lz5f"></thead><thead id="7lz5f"><dl id="7lz5f"><progress id="7lz5f"><ins id="7lz5f"></ins></progress></dl></thead><dl id="7lz5f"><progress id="7lz5f"><i id="7lz5f"><noframes id="7lz5f"></noframes></i></progress></dl><progress id="7lz5f"><del id="7lz5f"></del></progress><cite id="7lz5f"><span id="7lz5f"></span></cite></div> <div class="t19"> <div class="above"> <div class="above-1"><span><a href="http://m.hebshx.com" target="_new" title="¿UÕdŠ¨æ‰‹æœºç«?>¿UÕdŠ¨æ‰‹æœºç«?/a></span> <span>|</span> <span><a href="../erweima.html" title="¿UÕdŠ¨æ‰‹æœºç«? target="_new">¿UÕdЍ½C¾äº¤</a>  | 咨询电è¯åQ?8633480908</span> <span class="above-2"><a href="../machinery/index.html">English </a>| <a href="../index.html">中文</a></span></div> </div> </div> <div class="zt"> <div class="d"><span class="logo-1"><a href="http://www.designwasp.com/index.html"><img src="../images/logo-index.png" ; /></a></span> <span class="dz1"> <h2>大型混å‡åœŸæ…拌站刉™€ å•†</h2> <p class="zzz19">æ²›_Œ—åŒæ˜Ÿåˆ‰™€ â€”—打造å“牌ä¼ä¸?刉™€ ä¼˜è´¨äñ”å“?/p> </span> <div class="zx2"> å”®å‰å’¨è¯¢ <form action="http://www.baidu.com/baidu"> <input type=text name=word> <input type="submit" value=" baidu  "> <input name=tn type=hidden value="bds"> <input name=cl type=hidden value="3"> <input name=ct type=hidden value="2097152"> <input name=si type=hidden value="hebshx.com"> </form> <div class="logo_1"> <ul> <li><a href="../abstract-jianjie.html">关于我们</a></li> <li><a href="../product-chanpin.html">产å“中心</a></li> <li><a href="../dongtai-98.html">ä¼ä¸šæ–°é—»</a></li> <li><a href="../recruit-zhaopin.html">äººæ‰æ‹›è˜</a></li> <li><a href="../serve-fuwu.html">æœåŠ¡é…äšg</a></li> <li><a href="../contact-lianxi.html">è”系我们</a></li> </ul> </div> </div> </div> </div> <div class="tt3"><img src="../2018/xw22.jpg" width="100%" alt="æ²›_Œ—åŒæ˜Ÿä¼ä¸šåœºæ™¯"> </div> <div class="guild"> <div class="guild-1"> <span><a href="../index.html">æ…æ‹Œç«™é¦–™å?/a></span> <span>  ></span> <span><a href="../dongtai-98.html">  公叿–°é—»</a></span> </div> </div> <div class="dhhh"> <div class="list"> <div class="sidebar"> <ul> <li><a href="../abstract-jianjie.html">å…¬å¸ä»‹ç»</a></li> <li><a href="../product-chanpin.html">产å“中心</a></li> <li><a href="../dongtai-98.html">å…¬å¸åЍæ€?/a></li> <li><a href="../serve-fuwu.html">å”®åŽæœåŠ¡</a></li> <li><a href="../serve-fuwu.html">æœåŠ¡é…äšg</a></li> <li><a href="../recruit-zhaopin.html">äººæ‰æ‹›è˜</a></li> <li><a href="../contact-lianxi.html">è”系我们</a></li> <li><a href="../index.html">å…¬å¸é¦–页</a></li> </ul> <div class="clear"> <p> </p> <p><a href="../index.html"><img class="tu19" src="../19xw/2(6).jpg" alt="æ…æ‹Œç«? longdesc="index.html"></a></p> <p> </p> <p><img class="tu19" src="../19xw/1(4).jpg" alt="ç«‹èáuè¡Œæ˜Ÿå¼æ…拌机" ></p> <p> </p> </div> </div> </div> <div class="new-1" id="new-1"> <h3>冬季施工预拌混å‡åœŸé˜²å†ÀLŽªæ–?/h3> <p><span style="font-size:14px; color:#999" >å‘布日期åQ?022-12-03 ä½œè€?a href="http://www.designwasp.com/">åQšæ²³åŒ—åŒæ˜?/a>  </span></p> <div> <p> æ··å‡åœŸå†…éƒ¨æ°´åˆ†åœ¨ä½Žæ¸©ä¸‹ç»“æ™¶è†¨èƒ€æ˜¯é€ æˆæ··å‡åœŸå—冻而破环的æ ÒŽœ¬åŽŸå› åQŒé¿å…æØœå‡åœŸå—å†»æ˜¯é¢„æ‹ŒæØœå‡åœŸå†¬æœŸç”Ÿäñ”ã€æ–½å·¥æ—¶åº”考虑的é‡ç‚šw—®é¢˜ã€‚若混å‡åœŸå‘生å—å†ÈŽ°è±¡ï¼Œè½»è€…åŠ å›ºã€é‡è€…拆除é‡å»ºã€‚æØœå‡åœŸé˜²å†»æŽªæ–½ä¸ä»…是ä‹É用防å†Õd‰‚的问题,而是一个系¾lŸçš„ã€å…¨é¢çš„ã€ç»¼åˆçš„问题。例å¦?åŽŸææ–™çš„ä¿æ¸©å’Œé¢„热,防冻剂的使用åQŒé…åˆæ¯”的调整和控制åQŒè¿è¾“ã€è°ƒåº¦ç®¡ç†æŽªæ–½ï¼Œæ··å‡åœŸä¿æ¸©å…»æŠ¤ç­‰é˜²å†»æŽªæ–½åº”统½{¹è€ƒè™‘åQŒæŽ§åˆ¶å…³é”®å› ç´ ã€? </p> <p>1ã€æØœå‡åœŸé˜²å†»æœºç†½Ž€˜q? </p> <p>水惔水化作用的速度除与混å‡åœŸæœ¬íw«ç»„æˆææ–™å’Œé…åˆæ¯”有兛_¤–åQŒå—温度影å“很大。当温度å‡é«˜æ—Óž¼Œæ°´åŒ–作用加快åQŒå¼ºåº¦å¢žé•¿ä¹Ÿè¾ƒå¿«åQ›å½“温度é™ä½Žåˆ?℃时åQŒæ°´æ³¥æ°´åŒ–ä½œç”¨å‡æ…¢ç”šè‡›_œæ­¢ï¼Œå¼ºåº¦å¢žé•¿å˜æ…¢è‡›_œæ­¢ï¼Œç›´è‡³æ°´åŒ–ä½œç”¨åœæ­¢åQŒå¼ºåº¦ä¸å†å¢žé•¿ï¼›æ°´å˜æˆå†°åŽï¼Œä½“积增大¾U?%åQŒäñ”生较大的膨胀应力。该膨胀力值常常大于水泥石内部形æˆçš„åˆæœŸå¼ºåº¦å€û|¼Œç ´çŽ¯æ··å‡åœŸå†…部结构,增加孔隙率,使得混å‡åœŸå¼ºåº¦å¤§òq…度é™ä½ŽåQŒè¡¨çŽîCؓ混å‡åœŸçš„å†ÀLŸã€? </p> <p>在一般情况下åQŒæØœå‡åœŸæ—©æœŸå…许å—冻的äÍ界强度ä¸å¾—低äº?MPaåQŒæ°”æ¸©è¶Šä½Žï¼Œè¯¥æ•°å€ÆD¶Šå¤§ã€‚因此,æé«˜æ··å‡åœŸçš„æ—©æœŸå¼ºåº¦æ˜¯ä¿è¯æØœå‡åœŸé¿å…å—冻的é‡è¦æ¸ é“。加入防å†Õd¤–加剂是ä‹É水的冰点下é™åQŒä¿ƒä½¿æØœå‡åœŸåœ¨è´Ÿæ¸©ä¸‹¼‹¬åŒ–一ŒD‰|—¶é—ß_¼Œä½¿æØœå‡åœŸå¼ºåº¦æŒç®‹å¢žé•¿è‡›_—å†ÖMÍ界强度之上ã€? </p> <p>2ã€é˜²å†ÀLŽªæ–½åŠæŽ§åˆ¶è¦ç‚¹ </p> <p>冬期施工时水泥储存é‡ä¸å®œå¤ªå¤šåQŒåœ¨ä¿è¯ç”Ÿäñ”˜qžç®‹çš„æƒ…况下åQŒå°½é‡å‡ž®‘库存。å¯å‡å°‘存放仓ä½åQŒå°½é‡é›†ä¸­å­˜æ”‘Öœ¨æŸä»“。新˜q›çš„æ•£è£…水惔相对温度较高åQŒä‹Éç”¨æ—¶å¯æé«˜æØœå‡åœŸçš„åˆå§‹æ¸©åº¦ã€? </p> <p> æé«˜æ…拌用水的温度是防止混å‡åœŸå—å†Èš„é‡è¦æ‰‹æ®µã€‚冬期生产时åQŒå¾è®®å®‰è£…与生äñ”é‡ç›¸é€‚应的供热锅炉,ž®†æ…æ‹Œç”¨æ°´é¢„å…ˆåŠ çƒ­ï¼Œè®©æØœå‡åœŸå‡ºæœºæ¸©åº¦ä¸ä½Žäº?0℃,æé«˜æ°´æƒ”的早期水化速度åQŒæé«˜æØœå‡åœŸçš„æ—©æœŸå¼ºåº¦ã€? </p> <p>应尽é‡å‡ž®‘å·²å‚¨å­˜ç ‚çŸ³ç‰©æ–™çš„çƒ­é‡æŸå¤±ã€‚露天砂堆表é¢å°½å¯èƒ½ç›–上一层è‰åž«æˆ–毛毡åQŒé™ä½Žç ‚å­çš„å—冻½E‹åº¦ã€‚若砂堆外层å†Õd£³å·²åÅžæˆï¼Œä½¿ç”¨ç‰©æ–™æ—Óž¼Œåº”去除冻壻I¼Œž®½é‡é¿å…¾l“冻的砂å—è¿›å…¥æ…æ‹Œæœºã€‚å°é—­æ–™‹‚šå†…存放物料æ—Óž¼Œè¦ç¡®ä¿æ–™‹‚šçš„密闭性,防止å†ïL©ºæ°”çš„‹¹å…¥ã€‚在æ¡äšgå…许æ—Óž¼Œå¯åœ¨æ–™æ£šçš„用料端生ç«åQŒæé«˜ç‰©æ–™å…¥æœºæ¸©åº¦ã€? </p> <p>ä½¿ç”¨ä¼˜è´¨çš„åŽŸææ–™æ˜¯æØœå‡åœŸé˜²å†»çš„é‡è¦çŽ¯èŠ‚ï¼Œåº”ä‹Éç”¨å«æ°´é‡ä½Žçš„å„ç§åŽŸææ–™ï¼Œè¦ä¸¥æ ¼æŽ§åˆ¶ç ‚ã€çŸ³æ–™çš„风化½E‹åº¦åQŒä¸¥æ ¼æ£€‹¹‹é˜²å†Õd‰‚中有效æˆåˆ†å«é‡ï¼Œé˜²æ­¢åŽŸææ–™è´¨é‡é—®é¢˜é€ æˆçš„æØœå‡åœŸé˜²å†»æ•ˆæžœæŠ˜å‡ã€? </p> <p>æ°´æƒ”æ°´åŒ–å—æ¸©åº¦åª„å“å¾ˆå¤§ï¼Œè€ŒæŽºåˆæ–™çš„æ°´åŒ–è¦åŒæ—¶å—到水惔水化产物é‡å’Œæ¸©åº¦çš„åŒé‡åª„å“ï¼Œæ¸©åº¦æ•ˆåº”æ›´å¤§ã€‚æØœå‡åœŸçš„æ—©æœŸå¼ºåº¦å°½å¿«å¢žé•¿è‡³ä¸´ç•Œå¼ºåº¦åQŒåº”适当æé«˜æ°´æƒ”用é‡åQŒé™ä½ŽæŽºåˆæç”¨é‡ã€‚水泥用é‡å¢žå¤§ï¼Œå¯æé«˜æØœå‡åœŸçš„æ—©æœŸå¼ºåº¦ï¼ŒåŒæ—¶åQŒæ°´åŒ–热的增加也会åšg¾~“æØœå‡åœŸè‡ªèín的温度é™ä½Žé€ŸçŽ‡ã€‚æ­¤å¤–ï¼Œé…置混å‡åœŸæ—¶åQŒè¿˜è¦ç»“åˆæ–½å·¥éƒ¨ä½å’Œå·¥åœ°çš„æØœå‡åœŸä¿æš–措施ã€? </p> <p> 通过大é‡è¯•éªŒè¯æ˜ŽåQŒå½“æ€È”¨æ°´é‡é™ä½Žåˆ?70kg以下æ—Óž¼Œæ··å‡åœŸçš„æŠ—冻性有明显æé«˜ã€‚这说明åQŒé™ä½ŽæØœå‡åœŸä¸­æ°´èƒ¶æ¯”åQŒæØœå‡åœŸæ¶²ç›¸¼›Õd­‹¹“度æé«˜åQŒå†°ç‚¹ä¸‹é™ï¼Œæ··å‡åœŸçš„å—冻机率é™ä½ŽåQŒå› æ­¤ï¼Œé…制混å‡åœŸæ—¶åº”å°½é‡é™ä½Žæ°´èƒ¶æ¯”。å¾è®®éžæ³µé€æØœå‡åœŸä¹Ÿé€‚å½“æŽºåŠ å‡æ°´å‰‚,˜q™å¯¹æé«˜æ··å‡åœŸçš„æŠ—冻性有é‡è¦ä½œç”¨ã€? </p> <p>使用有效的å¤åˆé˜²å†Õd‰‚åQŒåœ¨æ··å‡åœŸé˜²å†Õd‰‚ä¸­åŠ å…¥å…·æœ‰å‡æ°´ã€æ—©å¼ºã€é˜²å†…R€å¼•气组份,ä¿è¯æ··å‡åœŸåœ¨è´Ÿæ¸©ä¸‹ä¸å—冻。å¤åˆé˜²å†Õd‰‚ä¸ä½†å‡å°‘æ··å‡åœŸæ‹Œåˆç‰©çš„用水é‡åQŒå‡ž®‘冻害程度,增加混å‡åœŸçš„密实度,而且é™ä½Žæ°´çš„冰点åQŒä‹É水惔在负温下¾l§ç®‹æ°´åŒ–åQŒå¼ºåº¦ç‘ô¾l­å¢žé•Ñ€? </p> <p>æ··å‡åœŸè¿›è¡Œæ…拌时åQŒå¾è®®æ…拌时间比å¤å­£æ—¶åšgé•?0så·¦å³åQŒè®©ž®‘é‡ç ‚ã€çŸ³å†Õd—解体åQŒæé«˜æØœå‡åœŸçš„匀质性,å‡å°‘å†Õd—å¯ÒŽØœå‡åœŸæž„äšg局部结构的ä¸è‰¯å½±å“ã€? </p> <p> 为é™ä½ŽæØœå‡åœŸåœ¨ä¸¥å¯’环境中的暴露时é—ß_¼Œæé«˜å…¥æ¨¡æ¸©åº¦åQŒåº”æå‰åšå¥½ç›¸å…³å·¥ä½œä¿è¯˜q输¾U¿èµ\畅通,åˆç†è°ƒé…车辆åQŒåšåˆ°å·¥åœîC¸åŽ‹èžR或轻微压车,ž®½é‡¾~©çŸ­˜q输环节和压车时é—ß_¼Œé˜²æ­¢æ··å‡åœŸæœ¬íw«çƒ­é‡çš„æŸè€—ã€? </p> <p> æ··å‡åœŸè¿è¾“ã€è¾“逿œºå…·åŠç”­ç®¡åº”采å–ä¿æ¸©æŽªæ–½ã€‚例如,混å‡åœŸè¿è¾“èžR¾|体è¦ç©¿ä¸Šä¿æš–èžR衣,泵é€ç®¡é“è¦ç”¨æ£‰è¢«æˆ–毛毡½{‰åŒ…è£¹ä¸¥å®žç­‰ã€‚æØœå‡åœŸ¾l“构表é¢ä¹Ÿè¦é‡‡ç”¨æ¯›æ¯¡ã€æ£‰è¢«æˆ–加膜è‰åž«½{‰åŠæ—¶åšå¥½è¦†ç›–。若æ¡äšgå…许åQŒæ–½å·¥æ—¶å¯åœ¨æ–½å·¥å±‚下部空间生ç«ï¼Œé™ä½Žæ··å‡åœŸå—冻风险。对于低强度½{‰çñ”的薄层结æž?å¦?垫层åQŒé˜²æ°´ä¿æŠ¤å±‚½{?应特别关注,其å—å†ÀLœºçŽ‡æ›´å¤§ã€‚å†¬æœŸæ–½å·¥çš„æ··å‡åœŸåº”ž®½é‡å»‰™•¿å…ÀLŠ¤æ—‰™—´å’Œæ‹†æ¨¡æ—¶é—´ã€‚模æ¿å’Œä¿æ¸©å±‚åº”åœ¨æØœå‡åœŸè¾‘Öˆ°è¦æ±‚强度åQŒä¸”æ··å‡åœŸè¡¨é¢æ¸©åº¦å†·å´åˆ°5℃åŽåœ¨æ‹†é™¤ã€‚对墙濽{‰ç­‰è–„壿··å‡åœŸæž„ä»Óž¼Œå®œåšgé•¿æ¨¡æ¿æ‹†é™¤æ—¶é—´ã€‚当混å‡åœŸè¡¨é¢æ¸©åº¦ä¸ŽçŽ¯å¢ƒæ¸©åº¦ä¹‹å·®å¤§äºŽ20℃时åQŒæ‹†æ¨¡åŽæ··å‡åœŸè¡¨é¢ç«‹åŒ™¿›è¡Œä¿æ¸©è¦†ç›–ã€‚æØœå‡åœŸå¼ºåº¦æœªè¾¾åˆ°å—å†ÖMÍç•Œå¼ºåº¦å’Œè®¾è®¡è¦æ±‚æ—Óž¼Œåº”ç‘ô¾l­è¿›è¡Œå…»æŠ¤ã€‚冬期施工期é—ß_¼Œåº”ç¼–åˆ¶è¶Šå†¬ç»´æŠ¤æ–¹æ¡ˆåÆˆ˜q›è¡Œä¿æ¸©¾l´æŠ¤ã€? </p> <p> å½“é‡‡ç”¨è“„çƒ­æ³•ã€æš–‹‚šæ³•ã€åŠ çƒ­æ³•æ–½å·¥æ—Óž¼Œé‡‡ç”¨¼‹…é…¸ç›æ°´æ³¥ã€æ™®é€šç¡…é…¸ç›æ°´æƒ”é…åˆ¶çš„æØœå‡åœŸåQŒä¸åº”ä½ŽäºŽè®¾è®¡æØœå‡åœŸå¼ºåº¦½{‰çñ”值的30%åQ›é‡‡ç”¨çŸ¿æ¸£ç¡…é…¸ç›æ°´æƒ”ã€ç²‰ç…¤ç°¼‹…é…¸ç›æ°´æ³¥ã€ç«å±Þq°¼‹…é…¸ç›æ°´æ³¥ã€ç²‰ç…¤ç°¼‹…é…¸ç›æ°´æ³¥ã€å¤åˆç¡…é…¸ç›æ°´æƒ”é…åˆ¶çš„æØœå‡åœŸæ—Óž¼Œä¸åº”低于设计混å‡åœŸå¼ºåº¦ç­‰¾U§å€¼çš„40%。当室外最低气温ä¸ä½ŽäºŽåQ?5℃时åQŒé‡‡ç”¨ç»¼åˆè“„热法ã€è´Ÿæ¸©å…»æŠ¤æ–½å·¥çš„æ··å‡åœŸå—å†ÖMÍ界温度ä¸åº”低äº?MPaåQ›å½“室外最低气温ä¸ä½ŽäºŽåQ?5℃时åQŒé‡‡ç”¨è´Ÿæ¸©å…»æŠ¤æ–½å·¥çš„æ··å‡åœŸå—å†ÖMÍ界温度ä¸åº”低äº?MPa。强度等¾U§ç­‰äºŽæˆ–高于C50çš„æØœå‡åœŸåQŒä¸åº”ä½ŽäºŽè®¾è®¡æØœå‡åœŸå¼ºåº¦½{‰çñ”值的30%。对有抗冻è€ä¹…æ€§è¦æ±‚的混å‡åœŸï¼Œä¸åº”低于设计混å‡åœŸå¼ºåº¦ç­‰¾U§å€¼çš„70%ã€?/p> <p> 3ã€å…¶å®ƒæ³¨æ„事™å? </p> <p> 密切å…Ïx³¨å¤©æ°”预报åQŒå®šæ—¶è§‚‹¹‹å®¤å¤–æ°”æ¸©ã€‚æ ¹æ®æ°”象信æ¯åŠæ—¶åˆ¶å®šç›¸åº”措施。当室外气温很低æ—Óž¼Œå»ø™®®åœæ­¢æ–½å·¥ã€‚ä¸è€ƒè™‘其它原因åQŒä»…从技术角度分æžï¼Œ˜q™æ ·èƒ½å¤Ÿé™ä½Žæ··å‡åœŸå—å†ÖMº‹æ•…çš„å‘生机率ã€? </p> <p> åœ¨é˜²æ­¢æØœå‡åœŸå—冻的一¾pÕdˆ—措施中,能åšåˆ°çš„ž®½é‡åšçš„å…¨é¢åQŒé¿å…é—æ¼é‡ç‚šw¡¹åQŒè½å®žå·¥ä½œåŠ¡å¿…åˆ°ä½ã€‚é¢„æ‹ŒæØœå‡åœŸä¼ä¸šå’Œæ–½å·¥ä¼ä¸šåœ¨åˆ†åˆ«åšå¥½è‡ªå·±çš„防å†ÀLŽªæ–½çš„åŒæ—¶åQŒå¿…™åÕd调作战,åšå¥½äº¤æŽ¥çŽ¯èŠ‚çš„æŽ¥‹z½å·¥ä½œã€? </p> <p> 4ã€æ€È»“ </p> <p> ä»Žæ€æƒ³ä¸Šé‡è§†æØœå‡åœŸé˜²å†»å·¥ä½œåQŒå¿…™åÕd…¨é¢è€ƒè™‘åQŒç³»¾lŸåˆ†æžï¼Œåˆ¶å®šå› åœ°åˆ¶å®œé˜²å†»æŽªæ–½åQŒä»ŽåŽŸææ–™è¿›åŽ‚æ£€éªŒã€ç‰©æ–™çš„è¦†ç›–è“„çƒ­ä¿æ¸©ã€ç”Ÿäº§è¿‡½E‹çš„é…æ¯”控制以劘qè¾“ã€æµ‡½{‘å’Œå…ÀLŠ¤æ–šw¢åšå¥½è®¤çœŸè½å®žåQŒä¸å¾—é—æ¼é‡ç‚ÒŽŽ§åˆ‰™¡¹åQŒæé«˜æØœå‡åœŸé˜²å†»çš„ä¿è¯ç³»æ•ŽÍ¼Œ¼‹®ä¿æ··å‡åœŸä¸å—冻ã€? </p> <br><br><img src="http://www.designwasp.com/19xw/jbz106.jpg" alt="æ²›_Œ—åŒæ˜Ÿæ··å‡åœŸæ…拌站讑֤‡" width="100%" ><br>     上图沛_Œ—åŒæ˜Ÿæ··å‡åœŸæ…拌站讑֤‡ <br><br><img src="http://www.designwasp.com/201812/jiaobanzhan%20(17).jpg" alt="æ²›_Œ—åŒæ˜Ÿæ··å‡åœŸæ…拌站讑֤‡" width="100%"><br>     上图沛_Œ—åŒæ˜Ÿæ··å‡åœŸæ…拌站讑֤‡ <br><br> <p> </div> <p></p> <div class="kk2"><img src="../kk2.jpg" width="1" height="11"></div> <p>如果想了解更多详情å¯ä»¥ç™»å½•æ²³åŒ?a href="../index.html">åŒæ˜Ÿ</a>官网åQ?a href="http://www.designwasp.com">www.designwasp.com</a>åQŒæ¬¢˜qŽæ–°è€ç”¨æˆ·å…‰ä¸´é€‰è´­ <p class="writings"><span>2022-08-06</span>上一½‹?<a href="http://www.designwasp.com/gongsixinwen/220806.html">æ··å‡åœŸæ…拌站混å‡åœŸé…åˆæ¯”调整‹¹ç¨‹è¯¦è¿°</a></p> </div> </div> <a href="http://www.designwasp.com/">ÍøÉÏ¿ìÈý¼Æ»®</a> <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body> </html>