推荐回答(3个)
首先需要对路面裂缝进行开槽,按施工设计要求,调整准确开槽机的开槽宽度以及开槽深度,将刀片中心对准裂缝的中心,使裂缝两边都能被刀片切割到,以露出裂缝两侧新材料为宜,这样才能达到更好的粘结效果。
其次,用强力气体或风速吹扫开槽后的裂缝,将开的槽内的灰尘、杂物及裂缝两侧松散之物吹扫干净,在裂缝两侧壁强度足够的强度下,才能达到更好的灌缝密封效果。对裂缝进行开槽吹扫后,需要检查裂缝底部和缝壁是否潮湿,如果不干燥,需要根据干燥程度,采取继续吹扫或加热等措施,直至没有明显能辨别出的潮湿状态为止。最后是进行沥青路面灌缝胶的灌缝填充工作。需将沥青路面灌缝胶加热到180度以上才可以进行填充工作(不要高于204℃)。使用灌缝机加热仓对沥青路面灌缝胶进行加热、搅拌、融化,到达灌注温度后使用灌缝枪将沥青路面灌缝胶灌注到路面裂缝中去。填充密封工作应连续进行,槽沟填充饱满。裂缝填充结束后,要在沥青路面灌缝胶冷却后在解除交通限制(一般20分钟左右),也可在灌注的沥青路面灌缝胶上面撒上白灰等后开放交通。

混凝土及钢板表面处理→紧固钢板和焊接→密封孔洞和周边缝隙→灌注胶配制→压力注胶→加压固定→固化、维护 操作要点:施工环境通风干燥,粘贴面洁净、打磨粗糙彻底,油污的地方用丙酮清洗干净;使用前必须根据环境、温度和工艺条件进行胶的试验调制,以确定最佳配比;灌胶速度不宜过快,且每次配胶量根据灌胶速度、气温等具体情况而定,不宜过多;常温胶固化温度不低于5°C,环境温度20-25°C时固化时间不少于3天,环境温度10°C时固化时间不得少于7天;低温胶可在-15°C~0°C环境温度下固化,为保证甲、乙两组份混合均匀,采用机械搅拌为宜。

路面灌缝胶,本名灌缝胶,行业标准称路面加热型密封胶。别名又叫道路灌缝胶、道路密封胶、沥青路面灌缝胶,沥青灌缝胶,有时候打错字也写作沥青路面灌封胶、道路灌封胶、路面灌封胶、沥青灌封胶。本产品是以重交改性沥青为基料,添加一定种类和比例的其它材料,然后通过特殊工艺胶溶而成。路面灌缝胶具有热熔快、易施工、持久的密封性、良好的低温柔性和高温稳定性等特点,可实现-40℃不开裂,60℃不黏脚,完全应对了道路裂缝随季节性变化的热涨冷缩。路面灌缝胶适用于沥青(或水泥)混凝土路面、房屋屋顶、房屋散水、地面等工程中的裂缝灌封修补,也可用到路面、散水、屋顶、地面的伸缩缝密封防水,用途以防水密封为主。对于沥青流失的沥青混凝土路面,通过融化路面灌缝胶撒布或采用1毫米路面贴缝带罩面,还可起到补充表面沥青含量的作用,防止路面沥青的自然流失而导致的骨料脱落等现象。
开槽,采用专用的开槽机进行该项作业,按照裂缝标示,根据裂缝的宽度和深度,调整好开槽机的开槽宽度和深度,对准裂缝的中线切割出均匀的u型凹槽。裂缝两侧壁至少各去3毫米,暴露出新的粘接面。灌缝,将路面灌缝胶加热至灌入温度,用灌缝机上带有刮平齐的压力喷头将材料均匀灌入槽内,为保证材料温度不降低,出料管道应具有加热功能。可采用针式喷嘴灌缝,或在裂缝两侧拖成刮板宽度的贴封层。每条裂缝的灌注工作应该是连续的,如出现未完成填封的裂缝需要再次进行填封处理。开放交通,根据气温条件冷却10—20分钟后就可开放交通。

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