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混凝土的地面和楼面裂缝形状分为很多种,有表面的、贯穿的、横向纵向的,由于混凝土结构受力的相关特点当产生裂缝时并不代表着都要去处理,比如裂缝宽度0.1-0.2㎜的这种状态也许经过一段时间的压应力左右它自然就闭合了,要么可能经过一段时间后裂缝自然愈合了。这种裂缝就是对结构安全不影响的无害裂缝,可以不做处理,那么对于大于0.2㎜的这种裂缝怎么办呢?有如下的处理措施:
采用静压注射环氧树脂进行注射灌浆液修补,把裂缝构成一个密闭性的空腔,借助专用灌浆设备将灌浆液压入裂缝缝隙中并填满裂缝缝隙范围。
采用随着裂缝开裂的走向和范围使用剔打凹槽,深度随着裂缝的深度而定,宽度可以比缝宽1-2厘米合适,然后把裂缝清洗干净,待裂缝周边干燥以后使用同相同强度和等级的水泥砂浆抹平来达到修复的目的。
使用静压注射灌浆料修复裂缝能有效地将裂缝缝隙填满,而且能够有效的裂缝形成封闭,一定程度上能遏制住裂纹,达到补强裂缝缺陷的效果。因此是混凝土地面裂缝修补方法。
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