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style="font-size:14px;"> <strong>瑞达基层<b><a href="http://www.fygsg.icu/" target="_blank" style="font-weight:bold">贴缝å¸?/a></b>的特性及其应用研½I?/strong></span><br /> <span style="font-size:14px;"><strong> 1、前­a€</strong></span><br /> <span style="font-size:14px;"> 路面的裂¾~é—®é¢˜ä¸€ç›´æ˜¯å…¬èµ\å»ø™®¾ã€ç®¡å…»éƒ¨é—¨é‡åˆ°çš„世界性技术难题,ž®Þp£‚¾~çš„成因而言分äؓ基层引è“v的反ž®„裂¾~å’Œé¢å±‚产生的表面裂¾~ä¸¤å¤§ç±»åQŒåž®„裂¾~ä¸»è¦å‘生在行èžR道的横端面,若处æ²ÀL–¹æ³•ä¸å½“将直接影响行èžR安全åQŒå…¬è·¯å²ä¸Šå°½½Ž¡ä‹É用过多种多样的äñ”品和施工技术对路面裂缝的处治进行了无数‹Æ¡çš„ž®è¯•åQŒæ•ˆæžœå‡ä¸ç†æƒ»I¼Œä¸ÞZº†æœ‰æ•ˆè§£å†³è·¯é¢è£‚缝的问题,辑ֈ°é“èµ\的安全、美观之宗旨åQŒåœ¨åŽé€šå…¬è·¯å…»æŠ¤æŠ€æœ¯æœ‰é™å…¬å¸çš„不懈努力下,瑞达自粘<a href="http://www.fygsg.icu/supply/3.html" target="_blank">贴缝å¸?/a>¾lˆäºŽé—®ä¸–了ã€?/span><br /> <span style="font-size:14px;"> 目前我国公èµ\ž®¤å…¶æ˜¯é«˜é€Ÿå…¬è·¯çš„¾l“构层主要分为沥青面层、稳定碎矌™µ\面基层、综合稳定土或石灰土、水泥土½{‰åŸºå±‚,而造成反射裂缝的主要原因就是稳定碎矛_±‚的羃裂,因此如何有效处治å»ø™®¾æœŸé—´½E›_®š¼„ŽçŸ³è·¯é¢åŸºå±‚的裂¾~æˆä¸ºé˜²æ²»èµ\面反ž®„裂¾~çš„关键。在前几òq´å…¬è·¯å¾è®ùNƒ¨é—¨ä¸€èˆ¬ä¸å¯¹ç¨³å®šç¢ŽçŸ›_±‚的裂¾~è¿›è¡Œå¤„理,但实践证明后期管养部门äؓ此付å‡ÞZº†å¤§é‡äººåŠ›ç‰©åŠ›åQŒå› ä¸ºåž®„裂¾~çš„成因是在基层åQŒè¦å¾—到æ ÒŽœ¬å¤„理必须开挖面层,如果开挖后不对基层裂缝˜q›è¡Œæœ‰æ•ˆå¤„理åQŒè£‚¾~åˆä¼šåœ¨å¾ˆçŸ­æ—‰™—´åå°„到面层,很快又会形成¾˜ÀLµ†ã€å”§æ³¥ç­‰ç—…害åQŒåŞ成恶性åó@环,¾l§ç®‹å‘展ž®†åª„响基层的½E›_®šã€‚管养部门将会因此而在很短旉™—´å†…需要大修,那么付出的代价将会巨大ã€?/span><br /> <span style="font-size:14px;"> ˜q‘年来新乡市瑞达路桥材料讑֤‡æœ‰é™å…¬å¸å¯ÒŽ­¤˜q›è¡Œäº†ç§¯æžçš„探烦åQŒå¼€å‘出一¿Ué€‚用于处理èµ\面基层裂¾~çš„新型材料—â€?a href="http://www.fygsg.icu/supply/153.html" target="_blank">基层贴缝å¸?/a>åQŒè¿™¿Uææ–™é€šè¿‡ä¸“用¾_˜æŽ¥å‰‚,¾_˜è„“在èµ\面基层的裂缝上,在裂¾~ä¸Šå½¢æˆä¸€å±‚高强度防水层,使èµ\面基层的裂缝不能向上反射åQŒæ²¥é’面层的渗水也不能向下渗透,保护了沥青面层和基层的稳定,延缓了èµ\面反ž®„裂¾~çš„出现。经工程实践åQŒæ•ˆæžœå¾ˆå¥½ã€‚本报告着重介¾låŸºå±‚è„“¾~å¸¦çš„特性、适用范围、施工工艺、实用效果检验与分析åQŒä¸Žå…¶å®ƒé˜²æ°´ææ–™çš„对比分析,以供有关部门寚w«˜é€Ÿå…¬è·¯èµ\面基层防水进行处æ²ÀL—¶å‚考ã€?/span><br /> <span style="font-size:14px;"> <strong> 2、基层脓¾~å¸¦çš„特æ€?/strong></span><br /> <span style="font-size:14px;"><strong> 2.1、基层脓¾~å¸¦çš„组成与ç‰ÒŽ€?/strong></span><br /> <span style="font-size:14px;"><strong> 2.1.1、基层脓¾~å¸¦çš„组æˆ?/strong></span><br /> <span style="font-size:14px;"> 瑞达基层贴缝带是一¿Uæ»šå·å¼é˜»è£‚防水隔膜åQŒæ˜¯ç”׃¸€¿Uæˆ–几种聚酯¾U¤ç»´ä¸Žé«˜åˆ†å­èšåˆç‰©æœ‰æœºåˆæˆçš„复合材料。经严格工艺¼„‘ÖŽ‹å¤åˆåœ¨ä¸€èµ—÷€‚具有很高的耐热性,能短期承å?00℃左右的高温åQŒåŒ–学性能½E›_®šåQ›ä¸”聚酯材料提高了材料的强度、磨耗性及抗剪能力。因此,可广泛地˜qç”¨ä»¥æ¡¥æ¢ã€å…¬è·¯ã€æœºåœºçš„å»ø™®¾åŠæ”¹é€ å·¥½E‹ä¸­åQŒå¯¹é˜²æ­¢å’Œå‡ž®‘沥青èµ\面的各种裂缝起到很好的防æ²ÀL•ˆæžœã€‚其材料¾l„成如下åQ?/span><br /> <span style="font-size:14px;"> 高分子聚合物</span><br /> <span style="font-size:14px;"> 增粘å‰?/span><br /> <span style="font-size:14px;"> 增塑å‰?/span><br /> <span style="font-size:14px;"> 聚脂材料</span><br /> <span style="font-size:14px;"> 重交沥青</span><br /> <span style="font-size:14px;"> æ·ÕdŠ å‰?/span><br /> <span style="font-size:14px;"> <strong>2.1.2、特æ€?/strong></span><br /> <span style="font-size:14px;"> 瑞达基层贴缝带主要用于高速公路、一般公路及城市道èµ\路面基层的新建和å…ÀLŠ¤å·¥ç¨‹ã€‚铺讑֐Ž‹z’布¾_˜å±‚油即可立åÏx‘Šé“ºé¢å±‚。基层脓¾~å¸¦å…ähœ‰ä»¥ä¸‹ç‰ÒŽ€§ï¼š</span><br /> <span style="font-size:14px;"> 1、基层脓¾~å¸¦å…ähœ‰å¾ˆé«˜çš„抗拉强度,适用于èµ\面基层(含水泥稳定碎矟뀁水泥æ؜凝土及其它半刚性或刚性结构)åQŒå¯é˜²æ­¢ç”׃ºŽæ¸©åº¦å½±å“åŠåž‚直荷载引èµïLš„裂缝反射到面层ã€?/span><br /> <span style="font-size:14px;"> 2、很好的韧性,可防止基层裂¾~åŞ变而造成贴缝带断裂或开裂ã€?/span><br /> <span style="font-size:14px;"> 3、很高的表面黏度åQŒè„“¾~å¸¦è¡¨é¢æœ‰é«˜é»åº¦ææ–™åQŒå¯ç›´æŽ¥ä¸Žæ¸…‹zçš„基层表面¾_˜ç»“åQˆå¦‚果清‹zåº¦ä¸é«˜å¯æ¶‚刷专用粘接剂åQ‰ã€‚由于基层的裂缝处的水åã^或垂直应力较为集中,使用基层贴缝带的宽度一般äؓ150mmåQŒé•¿åº¦åº”æ ÒŽ®¾~é•¿¼‹®å®šã€?/span><br /> <span style="font-size:14px;"> 4、耐老化åQŒåŸºå±‚è„“¾~å¸¦çš„主要成份是惰性物质,不宜氧化åQŒä¸ä¸Žé…¸ã€ç¢±½{‰ç‰©è´¨ååº”,可长期保持其物理化学性能ã€?/span><br /> <span style="font-size:14px;"> 5、耐高温、抗低温åQŒç»å®žè·µè¯æ˜ŽåŸºå±‚贴缝带高温不‹¹æ·Œä½Žæ¸©ä¸è„†è£‚,在很大温度范围均可保持良好的物理力学性能ã€?/span><br /> <span style="font-size:14px;"> 6、极å…ïL‰¹è‰²çš„“自愈”功能,能自行愈合较ž®çš„½I¿å‰Œç ´æŸåQŒå¯è‡ªåŠ¨å¡«å¡žæ„ˆåˆè¾ƒå°çš„基层裂¾~ã€?/span><br /> <span style="font-size:14px;"> <strong>2.1.3、作用机ç?/strong></span><br /> <span style="font-size:14px;"> åQ?åQ‰åº”力吸收及抗开裂。基层脓¾~å¸¦åœ¨æ²¥é’面层中åQŒèƒ½å¤Ÿå°†è½¦è½®æŽ¥è§¦çš„下面层压力和轮载边¾~˜ä»¥å¤–区域受到的应力分散åQŒåœ¨ä¸¤å—受力区域之间形成¾~“冲带,使此处应力逐步减小åQŒå‡ž®‘应力集中对沥青面层的破坏,从而有效地廉™•¿è·¯é¢çš„寿命。(2åQ‰æé«˜èµ\面基层稳定性。基层脓¾~å¸¦å‡­å€Ÿå…¶è‰¯å¥½çš„抗拉强度及¾_˜æŽ¥æ€§å¯ä»¥å°†ä¸‹å±‚裂缝两侧˜qžæŽ¥èµäh¥åQŒåŞæˆ?5mm-100mm宽的¾lå¯¹çš„整体防护层ã€?/span><br /> <span style="font-size:14px;"> ç”׃ºŽåŸºå±‚贴缝带具有较强的抗拉强度。其在沥青面层中的应用,可以提高面层的横向拉伸强度、抵抗较大的拉应力而不至于破坏。即使局部区域äñ”生裂¾U¹ï¼Œåœ¨è£‚¾U¹å¤„的应力集中,¾lé«˜åˆ†å­<b>抗裂è´?/b>的传递而消失,裂纹也不会发展到面层而破坏èµ\面ã€?/span><br /> <span style="font-size:14px;"> <strong>2.2、防水性能</strong></span><br /> <span style="font-size:14px;"> 厅科研院、河南通和高速公路养护工½E‹æœ‰é™è´£ä»Õd…¬å¸ã€æ²³å—通瑞公司公èµ\å…ÀLŠ¤å·¥ç¨‹æœ‰é™è´£ä“Q公司、河南省交通厅鹤壁è‡Ïx¿®é˜³é«˜é€Ÿå…¬è·¯å¾è®¾æŒ‡æŒ¥éƒ¨½{‰å¯¹åŸºå±‚反射裂缝é“ø™®¾åŸºå±‚贴缝带的效果˜q›è¡Œäº†æœ‰æ•ˆæŽ¢ç´¢ï¼Œ‹¹‹è¯•äº†ä¸‹åˆ—å››¿UåŸºå±‚裂¾~æƒ…况下处治的防水效果ã€?/span><br /> <span style="font-size:14px;"> åQ?åQ‰ã€ä»…˜q›è¡ŒçŒç¼å¤„理åQ?/span><br /> <span style="font-size:14px;"> åQ?åQ‰ã€é“ºè®‘ÖœŸå·¥å¸ƒåQ?/span><br /> <span style="font-size:14px;"> åQˆï¼“åQ‰ã€é“ºè®„¡‘žè¾‘ÖŸºå±‚è„“¾~å¸¦åQ?/span><br /> <span style="font-size:14px;"> ‹¹‹è¯•æ–ÒŽ³•åQ?/span><br /> <span style="font-size:14px;"> åQ?åQ‰ã€ä¸˜q›è¡Œä»ÖM½•å¤„理åQ?/span><br /> <span style="font-size:14px;"> 1åQ‰é€‰æ‹©ä¸€æ¡åž®„裂¾~ã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€æ¸…理èµ\面基层裂¾~ï¼Œç„¶åŽç”¨å¯†ž®èƒ¶çŒç¼</span><br /> <span style="font-size:14px;"> 3åQ‰ã€æ´’ä¹›_Œ–沥青åQŒé“º½{‘沥青æ؜合料ã€?/span><br /> <span style="font-size:14px;"> åQ?åQ‰ã€é“ºè®‘ÖœŸå·¥å¸ƒåQ?/span><br /> <span style="font-size:14px;"> 1åQ‰ã€é€‰æ‹©å¦ä¸€æ¡åž®„裂¾~ã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€ä¸­é—´å·¥åºåŒä¸Šã€?/span><br /> <span style="font-size:14px;"> åQ“)、铺讑֜Ÿå·¥å¸ƒã€?/span><br /> <span style="font-size:14px;"> åQ”)、洒乛_Œ–沥青åQŒé“º½{‘沥青æ؜合料ã€?/span><br /> <span style="font-size:14px;"> åQˆï¼“åQ‰ã€é“ºè®„¡‘žè¾‘ÖŸºå±‚è„“¾~å¸¦åQ?/span><br /> <span style="font-size:14px;"> 1åQ‰ã€é€‰æ‹©½W¬ä¸‰æ¡åž®„裂¾~ã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€ä¸­é—´å·¥åºåŒä¸Šã€?/span><br /> <span style="font-size:14px;"> 4åQ‰ã€æ¶‚刷专用粘接剂åQŒé“ºè®„¡‘žè¾‘ÖŸºå±‚è„“¾~å¸¦ã€?/span><br /> <span style="font-size:14px;"> 5åQ‰ã€æ´’ä¹›_Œ–沥青åQŒé“º½{‘沥青æ؜合料ã€?/span><br /> <p> <span style="font-size:14px;"> 盔Rš”不同日期对原来裂¾~å¤„取芯åQŒå–芯结果如下:</span> </p> <p style="text-align:center;"> <span style="font-size:14px;"><img src="/uploads/image/20160122/20160122171315_2722.jpg" width="552" height="514" title="基层贴缝å¸? alt="基层贴缝å¸? /><br /> </span> </p> <span style="font-size:14px;"> 上述‹¹‹è¯•¾l“果表明åQŒé“ºè®‘ÖŸºå±‚è„“¾~å¸¦å¯æœ‰æ•ˆåšg¾~“基层裂¾~å‘面层的反ž®„。åšg镉K“路的使用寿命åQŒé™ä½ŽåŽæœŸå…»æŠ¤æˆæœ¬ã€?/span><br /> <span style="font-size:14px;"> <strong>2.3、良好的¾_˜æŽ¥æ€§èƒ½</strong></span><br /> <p> <span style="font-size:14px;"> 瑞达基层贴缝带不仅具有很好的自“愈合”能力,同时也具有良好的¾_˜æŽ¥æ€§èƒ½åQŒé€šå¸¸åœ¨åŸºå±‚表面清‹zçš„情况下,可直接铺讑֜¨è£‚缝上,无须涂刷专用¾_˜æŽ¥å‰‚,基层贴缝带即可与基层形成很好的粘接,对裂¾~åŞ成良好的密封作用ã€?/span> </p> <p style="text-align:center;"> <span style="font-size:14px;"><img src="/uploads/image/20160122/20160122171616_3191.jpg" width="540" height="405" alt="" /><br /> </span> </p> <span style="font-size:14px;"> <strong>2.4、耐高温、抗低温性能</strong></span><br /> <span style="font-size:14px;"> ç”׃ºŽç‘žè¾¾åŸºå±‚贴缝带组要成分是高分子æ؜合物åQŒå› æ­¤å…·æœ‰è‰¯å¥½çš„高低温性能åQŒå®Œå…¨èƒ½æ»¡èƒö大部分地åŒÞZ‹É用要求ã€?/span><br /> <span style="font-size:14px;"> <strong>2.5、变形恢复性能</strong></span><br /> <span style="font-size:14px;"> 变åŞ恢复能力是一¿UåŠ¨æ€é˜²æ°´ææ–™çš„一™åšw‡è¦æŒ‡æ ‡ï¼Œç‘žè¾¾åŸºå±‚贴缝带具有良好的å¼ÒŽ€§ï¼Œèƒ½åœ¨è¾ƒå¤§èŒƒå›´å†…恢复变形ã€?/span><br /> <p> <span style="font-size:14px;"> <strong>2.6、抗拉äŽ×性能</strong></span> </p> <p style="text-align:center;"> <span style="font-size:14px;"><strong><img src="/uploads/image/20160122/20160122171655_1316.jpg" width="553" height="415" alt="" /><br /> </strong></span> </p> <span style="font-size:14px;"> 瑞达基层贴缝带具有较高的抗拉强度åQŒèƒ½å¾ˆå¥½çš„è“v到消除应力,抉|Š—开裂的能力ã€?/span><br /> <span style="font-size:14px;"> <strong> 3、瑞辑֟ºå±‚è„“¾~å¸¦çš„应ç”?/strong></span><br /> <span style="font-size:14px;"><strong> 3.1、应用范围和特点</strong></span><br /> <span style="font-size:14px;"> 1、广泛用于高速公路、一¾U§å…¬è·¯åŠåŸŽå¸‚道èµ\基层裂缝的处沅R€?/span><br /> <span style="font-size:14px;"> 2、ä‹É用简单、方ä¾Ñ€å¿«æ—÷€ç»¼åˆæˆæœ¬ä½Žå»‰ã€?/span><br /> <span style="font-size:14px;"> 3、经久耐用åQŒå·¥½E‹ä‹É用中åQŒå¯é•¿æœŸèµ·åˆ°è£‚缝防水功能ã€?/span><br /> <span style="font-size:14px;"> 4、质量可靠ã€?/span><br /> <span style="font-size:14px;"> 5、安全环保、无毒无実ë€?/span><br /> <span style="font-size:14px;"> 6、有效消除面层的集中应力ã€?/span><br /> <span style="font-size:14px;"> 7、防水渗透ã€?/span><br /> <span style="font-size:14px;"> <strong>3.2、施工程åº?/strong></span><br /> <span style="font-size:14px;"> 3.2.1、施工准å¤?/span><br /> <span style="font-size:14px;"> 1åQ‰ã€æ ¹æ®èµ\面裂åQˆæŽ¥åQ‰ç¼çš„宽度选择使用贴缝带的规格åQŒé€šå¸¸æœ?2厘米å’?5厘米两种ã€?厘米以上宽的裂(接)¾~é€‰ç”¨22厘米宽的贴缝带;1厘米以下宽的裂(接)¾~é€‰ç”¨15厘米宽的贴缝带ã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€ä‹É用刷子、吹风机½{‰å·¥å…·å¯¹é€‰æ‹©ä½¿ç”¨è´´ç¼å¸¦çš„裂(接)¾~è¿›è¡Œæ¸…‹zã€å¹²ç‡¥å¤„理,裂(接)¾~å®½åº¦å¤§äº?毫米的要灌注高分子密ž®èƒ¶åQŒè¡¨é¢æ— ½Hè“v、无凚w™·ã€æ— æ¾æ•£ã€æ— æ²¹è„‚及其它污染ã€?/span><br /> <span style="font-size:14px;"> 3åQ‰ã€åœ¨éœ€é“ø™®¾è´´ç¼å¸¦çš„地方涂刷专用¾_˜æŽ¥å‰‚,ç”׃½Žåˆ°é«˜åQŒç”±¾Uµåˆ°æ¨ªã€?/span><br /> <span style="font-size:14px;"> 3.2.2、铺è®?/span><br /> <span style="font-size:14px;"> 1åQ‰ã€å¾…¾_˜æŽ¥å‰‚半òq²ç‡¥åŽï¼Œž®†è„“¾~å¸¦çš„éš”¼›Èº¸æ­åŽ»åQŒæœ‰èšä¸™çƒ¯ç»‡ç‰©çš„一面朝上,以裂åQˆæŽ¥åQ‰ç¼ä¸ÞZ¸­å¿ƒçº¿ž®†è„“¾~å¸¦òqÏx•´çš„脓在表面,如遇不规则裂¾~ï¼Œå¯ç”¨è£çº¸åˆ€åˆ†åˆ‡åQŒæŒ‰æŽ¥ç¼èµ°å‘跟踪¾_˜è„“åQŒç»“合处要åŞæˆ?-10厘米重叠åQŒæ³¨æ„ç²˜è´´æ—¶ž®½é‡ä¸è¦å¸¦å…¥æ°”æˆöã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€é“ºè®‘֐Žç”¨æ©¡èƒ¶è¾Š¼„‘ÖŽ‹åQŒä»¥æŽ’除¾_˜è„“时有可能带入的气泡,以及更好地的与表面粘接ã€?/span><br /> <span style="font-size:14px;"> 3.2.3、铺½{‘面å±?/span><br /> <span style="font-size:14px;"> 1åQ‰ã€å–·‹z’底层æÑaã€?/span><br /> <span style="font-size:14px;"> 2)、铺½{‘面层ã€?/span><br /> <span style="font-size:14px;"> <strong> 3.4、防护与安全</strong></span><br /> <span style="font-size:14px;"> 瑞达基层贴缝带化学性能½E›_®šåQŒè€Œä¸”在各¿Uæ¸©åº¦ä¸‹éƒ½èƒ½ä¿æŒå„项性能åQŒè€Œä¸ä¼šå¯¹å‘¨å›´çŽ¯å¢ƒäº§ç”Ÿæœ‰å®³å½±å“ã€?/span><br /> <span style="font-size:14px;"> 防火要求åQšè„“¾~å¸¦æœ¬èín不遇明火不易燃,但专用粘接剂属易燃品åQŒä‹É用过½E‹ä¸­è¦ä¸¥æ ¼åšå¥½é˜²ç«æŽªæ–½ï¼Œä¸èƒ½æŽ¥è¿‘高温或明火,如不慎失火,可用òq²ç²‰ç­ç«å™¨æˆ–砂、土覆盖灭火ã€?/span><br /> <span style="font-size:14px;"> 防护要求åQšå¿…™å»é¿å…ä¸“用粘接剂接触到眼睛,ž®½é‡ä¸è¦æŽ¥è§¦çš®è‚¤åQŒæŽ¥è§¦åˆ°çš®è‚¤ä¸ä¼šç«‹å³æœ‰å±å®»I¼Œå¦‚有不舒适可用汽æ²ÒŽˆ–热水清洗ã€?/span><br /> <span style="font-size:14px;"> 4、ä‹É用效果的‹‚€‹¹‹ä¸Žåˆ†æž</span><br /> <span style="font-size:14px;"> 自瑞辑֟ºå±‚è„“¾~å¸¦é—®ä¸–以来åQŒå¼•èµ·äº†å…¨å›½å¤§é‡å·¥ç¨‹æŠ€æœ¯äh员的极大兴趣åQŒå¤šæ¡é«˜é€Ÿå…¬è·¯æˆ–一¾U§å…¬è·¯è¿›è¡Œäº†å·¥ç¨‹ä½¿ç”¨æˆ–试验段åQŒåŒæ—¶è¯¥äº§å“ä¹Ÿç»˜q‡äº†å›½å®¶å®žéªŒå®¤è®¤å¯ã€äº¤é€šéƒ¨ç”²çñ”试验室的‹‚€‹¹‹ã€‚同时äؓ了进一步扩大实体工½E‹è¯•éªŒï¼Œåœ¨å¼€ž®è‡³éƒ‘州高速公路专™å¹å·¥½E‹ã€éƒ‘州至‹z›é˜³é«˜é€Ÿå…¬è·¯ä¸“™å¹å·¥½E‹ã€äº¬ç é«˜é€Ÿè®¸æ˜Œè‡³æ¼¯æ²³ŒDµå¤§ä¿®å·¥½E‹ã€é¹¤å£è‡³‹È®é˜³é«˜é€Ÿå…¬è·¯å¾è®‘Ö·¥½E‹ä¸­˜q›è¡Œäº†å·¥½E‹å®žä½“试验。限于篇òq…,本文着重介¾læ–°ä¹¡è‡³å®‰é˜³é«˜é€Ÿå…¬è·¯åŠ å®½å·¥½E‹çš„使用情况ã€?/span><br /> <span style="font-size:14px;"> <strong> 4.1、新乡至安阳高速公路加宽工½E?/strong></span><br /> <span style="font-size:14px;"> 安阳地区位于沛_—北部åQŒæ°”候属于温带大陆性气候,雨季集中åœ?月上旬至8月下旬。安阌™‡³æ–îC¹¡é«˜é€Ÿå…¬è·¯æ˜¯äº¬æ¸¯æ¾›_›½å®¶ä¸»òq²çº¿çš„一ŒDüc€‚本‹Æ¡è¯•éªŒä¸»è¦é€‰åœ¨å®‰æ–°ŒDµï¼Œå†…容主要是处理基层反ž®„裂¾~ã€‚首先以原基层裂¾~äؓ中心åQŒå°†¾~æ¸…理干净åQŒï¼ˆå®½åº¦å¤§äºŽ0.5毫米对基层裂¾~è¿›è¡ŒçŒ¾~ï¼ŒåQ‰æ¶‚åˆïL²˜æŽ¥å‰‚åQŒé“ºè®¾è„“¾~å¸¦åQŒå–·‹z’底层æÑaåQŒé“º½{‘沥青æ؜合料åQŒç¢¾åŽ‹æˆåž‹ã€‚通过˜q‘一òq´çš„观察åQŒç›®å‰æ•ˆæžœè‰¯å¥½ï¼Œé¢å±‚未出现反ž®„裂¾~ï¼Œæœªå‘生翻‹¹†ã€å”§æ³¥çŽ°è±¡ã€?/span><br /> <span style="font-size:14px;"> <strong>5、瑞辑֟ºå±‚è„“¾~å¸¦ä¸Žå…¶å®ƒé˜²æ°´ææ–™çš„å¯ÒŽ¯”分析</strong></span><br /> <span style="font-size:14px;"><strong> 5.1、瑞辑֟ºå±‚è„“¾~å¸¦ä¸ŽåœŸå·¥å¸ƒçš„对比分æž?/strong></span><br /> <span style="font-size:14px;"> 1åQ‰ã€ç‰©ç†æ€§èƒ½</span><br /> <span style="font-size:14px;"> 基层贴缝带是一¿Ué«˜å¼ºåº¦ã€é«˜ä¼”R•¿çŽ‡ã€é«˜¾_˜æŽ¥æ€§çš„ä¸ÕdŠ¨é˜²æ°´ææ–™åQŒå‡€åŽšåº¦åœ?毫米以上åQŒå¯æœ‰æ•ˆæé«˜è·¯é¢æŠ—裂防水性能。而土工布是一¿Ué€‚合土方工程使用的单向透水或不透水的纤¾l´ç»‡ç‰©ï¼Œä¸€èˆ¬åŽšåº¦å¾ˆè–„,不èƒö1毫米åQŒæŠ—拉强度、äŽ×长率和弹性也较低åQŒåƈ不适合作äؓ基层防水材料使用ã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€åŒ–学性能</span><br /> <span style="font-size:14px;"> 基层贴缝带是由多¿Ué«˜åˆ†å­ææ–™¾l„成åQŒåŒ–学性质½E›_®šåQŒæŠ—老化性能优良åQŒè¾ƒåœŸå·¥å¸ƒæœ‰æ›´å¥½çš„化学性能ã€?/span><br /> <span style="font-size:14px;"> 3åQ‰ç²˜æŽ¥æ€§èƒ½</span><br /> <span style="font-size:14px;"> 基层贴缝带本íw«å°±å…ähœ‰å¾ˆå¼ºçš„粘接能力,可与清洁的基层直接粘接,而土工布本èín不具备粘接能力,需要涂刷äã^化沥青才å…ähœ‰ä¸€å®šçš„¾_˜æŽ¥èƒ½åŠ›ã€‚而且¾_˜æŽ¥å¤„密ž®æ•ˆæžœä¹Ÿè¾ƒå·®ã€?/span><br /> <span style="font-size:14px;"> 4åQ‰å¼¹æ€§å¤§ã€æŠ—变型能力å¼?/span><br /> <span style="font-size:14px;"> 基层贴缝带具有“自愈”能力和很强的抗变型能力åQŒåœ¨åŸºå±‚裂缝上下错动时不会出现断裂或撕裂现象。而土工布基本无弹性和变型能力åQŒåœ¨å‘生基层错动时很å®ÒŽ˜“在裂¾~å¤„产生断裂而失åŽÖM½œç”¨ã€?/span><br /> <span style="font-size:14px;"> 5åQ‰æŠ—推移能力</span><br /> <span style="font-size:14px;"> 因äؓ土工布铺讑֮½åº¦ä¸€èˆ¬åœ¨1¾c›_·¦å»I¼Œè€Œä¸”土工布面上下面均å–äh´’ä¹›_Œ–沥青åQŒé“º½{‘面层后面层与基层将在铺讑֜Ÿå·¥å¸ƒçš„上下面形成一片无˜qžæŽ¥èƒ½åŠ›çš„滑动层åQŒéšç€è½¦è½®çš„碾压会在åšgé“ø™®¾åœŸå·¥å¸ƒå¤„产生横向推移åQŒè€Œåœ¨è·¯é¢ä¸ŠåŞ成一个类似减速带一æ ïLš„涌包åQŒä¸¥é‡åª„响行车安全与舒适性(已有多条高速公路和地方公èµ\为此˜q›è¡Œäº†å±€éƒ¨ç¿»ä¿®ï¼‰ã€‚而基层脓¾~å¸¦ä»…铺讑֜¨åº”力集中的裂¾~å¤„åQŒä¸€èˆ¬å®½åº¦ä¸å¤§äºŽ22厘米åQŒåƈ且脓¾~å¸¦å…ähœ‰å¾ˆå¼ºçš„弹性,沥青混合料的骨料会和贴缝带åŞ成一定程度的镶嵌åQŒè€Œä¸å®ÒŽ˜“在脓¾~å¸¦è¡¨é¢æ»‘动åQŒå› æ­¤å°†ä¸ä¼šé€ æˆæ¨ªå‘推移ã€?/span><br /> <span style="font-size:14px;"> 6åQ‰é˜²æ°´æ€§èƒ½</span><br /> <span style="font-size:14px;"> 俗话说“好钢用在刀刃上”,水主要是通过裂缝˜q›å…¥è·¯åŸºçš„,只有在èµ\面基层裂¾~å¤„密封才能防止水的渗透,基层贴缝带主要是针对裂缝处的应力集中和裂¾~å¯†ž®ï¼Œæ˜¯åŞ成一条止水带。而土工布的作用是一个面åQŒè€Œè£‚¾~å¤„却没有特别加强,在裂¾~å¤„形成一个薄å¼ÞqŽ¯èŠ‚,而容易造成破损、断裂、粘接性不好、渗水等现象而失于作用ã€?/span><br /> <span style="font-size:14px;"> 7åQ‰æ–½å·¥æ€§èƒ½</span><br /> <span style="font-size:14px;"> 土工布在é“ø™®¾æ—¶è¦å…ˆå–·‹z’äã^化沥青,待破乛_Žæ‰èƒ½é“ø™®¾åQŒé“ºè®‘֐Žå†å–·‹z’äã^化沥青,而且在拉料èžR与摊铺机在èµ\槽中行驶和作业时很容易将土工布带èµøP¼Œž®¤å…¶æ˜¯æ‘Šé“ºæœºä½œä¸šæ—Óž¼Œå±¥å¸¦å¾ˆå®¹æ˜“把土工布揭èµøP¼Œè€Œä¸”摊铺机揭起后ž®†æ— æœÞZ¼šå†é“ºè®¾ï¼Œè€Œé€ æˆæ¼æ´žåQŒåŒæ—¶æ­èµïLš„土工布将¼„‘ÖŽ‹åœ¨é¢å±‚中而造成隐患ã€?/span><br /> <span style="font-size:14px;"> 9åQ‰è€é«˜æ¸©ã€æŠ—低温性能</span><br /> <span style="font-size:14px;"> 基层贴缝带主要是高聚物组成,å…ähœ‰å¾ˆå¥½çš„高低温性能åQŒè€Œä¸”å…ähœ‰ä¸€å®šåŽšåº¦ï¼Œä¸ŽåŸºå±‚也形成了很好的¾_˜ç»“åQŒæ‘Šé“ºé¢å±‚时也能起到一定降温作用,ž®½ç®¡æ²¥é’混合料铺设时瞬时温度较高也不会对贴缝带造成损害åQŒè€ŒåœŸå·¥å¸ƒž®¤å…¶æ˜¯åŠ£è´¨åœŸå·¥å¸ƒåœ¨é«˜æ¸©æ—¶å¾ˆå®¹æ˜“变形或熔化而失åŽÖM½œç”¨ã€?/span><br /> <span style="font-size:14px;"> <strong> ¾l“束è¯?/strong></span><br /> <span style="font-size:14px;"> 通过实验室检‹¹‹å’ŒçŽ°åœºä½¿ç”¨åŠè¯•éªŒæ®µçš„应用与观测åQŒå¯¹ç‘žè¾¾åŸºå±‚贴缝带有如下认识åQ?/span><br /> <span style="font-size:14px;"> 1åQ‰ã€åœ¨åŸºå±‚裂缝处铺设脓¾~å¸¦åQŒåŞ成一个应力吸收层和一条防水密ž®å¸¦åQŒä»Žè€ŒåŸºæœ¬æ¶ˆé™¤æ°´å¯¹å…¬è·¯çš„危害åQŒå‡ž®‘后期养护费用,廉™•¿é“èµ\使用寿命ã€?/span><br /> <span style="font-size:14px;"> 2åQ‰ã€æ–½å·¥ç®€ä¾¿ï¼Œæ˜“学易用åQŒæ–½å·¥å·¥è‰ºç®€å•ï¼Œæ–½å·¥æŠ€æœ¯å®¹æ˜“掌握,一般技术äh员一天即可掌握ä‹É用方法ã€?/span><br /> <span style="font-size:14px;"> 3åQ‰ã€ç»¼åˆè´¹ç”¨ä½ŽåQŒç»‹¹Žæ•ˆç›Šæ˜Žæ˜¾ï¼Œè™½ç„¶åˆæœŸæŠ•å…¥ææ–™æˆæœ¬ç›¸å¯¹è¾ƒé«˜åQŒä½†åŽæœŸå…ÀLŠ¤è´¹ç”¨å´å¯ä»¥å¤§é‡èŠ‚省,同时也可以避免因提前大修、专™å¹å·¥½E‹è€Œé€ æˆè½¦è¾†æ–­è¡ŒåQŒç»¼åˆç¤¾ä¼šã€ç»‹¹Žæ•ˆç›Šæ˜Žæ˜¾ã€?/span><br /> <span style="font-size:14px;"> 4åQ‰ã€å¾è®®ï¼šå¯¹äºŽæ–°å¾æˆ–改建道路,在处治èµ\面基层裂¾~æ—¶å¦‚无特别有效工艺åQŒå¯è€ƒè™‘采取瑞达基层贴缝带,以防止徏成后裂缝的åŞ成和水损害现象的发展åQŒåšg镉K“è·¯ä‹É用寿命ã€?/span><br /> <span style="font-size:14px;"> </span><br /><span id="nestremark"></span></p></div> <p> 上一条:<a href="/supply/154.html">高聚物注‹¹†æ–½å·?/a> 下一æ?<a href="/supply/152.html">ž®±åœ°å†·å†ç”Ÿæ–½å·?/a> </p> </div> <div class="tag">相关标签åQ?a href='/key.aspx?k=%e5%85%bb%e6%8a%a4%e6%9d%90%e6%96%99%e7%b3%bb%e5%88%97'>å…ÀLŠ¤ææ–™¾pÕdˆ—</a>,<a href='/key.aspx?k=%e5%9f%ba%e5%b1%82%e8%b4%b4%e7%bc%9d%e5%b8%a6%e4%bb%b7%e6%a0%bc'>基层贴缝带ä­hæ ?/a>,<a 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