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对于石材人而言，冬季石材护理这个问题，是怎样都绕不过的的难题，随着天气转冷，室外的作业难以进行，正在进行的护理作业往往会遇到一些问题，比如防护施工、再结晶处理效果不佳、冻融现象等。 大理石石材养护图片 冬季温度低，直接影响防护施工的效果，那么，冬季如何做好石材护理呢？1.冬季石材护理常需要防水处理、防污染处理等防护工程，但涂装防护作业需要适当的温度。防护涂装后石材需要养生，防护发挥真正的作用。 常温下，湿度70%以内，防护养生时间需要48小时。而温度每下降10度，防护养生则需要增加2－4倍时间。因为养生耗费时间太长所以在寒冷的冬季，特别是0度以下的环境中，不建议进行防护施工。 2.我们知道，低温环境会影响石材再结晶处理效果，石材再结晶处理是结晶剂在专业设备抛磨下发生化学反应，石材表面晶格进得到重组，形成了更坚固更稳定的化学成份。而化学反应需要合适的温度，常温下石材结晶的效果和效率相对较好。 石材护理同行朋友可能遇到过这种情况：底下铺装了地暖的石材，在进行抛光时表面容易发干，不容易抛出好效果。在寒冷的北方，对靠近玻璃幕墙的石材进行抛光，石材表面的效果也出不来，这主要是因为玻璃旁边温度低，影响了石材的化学结晶反应。 3.低温还会造成石材的冻融现象，冻融现象就是冬季寒冷时，石材缝隙内部或者周边结冰，产生膨胀作用。石材孔隙内水结冰产生的应力，是造成石材裂纹的原因之一。懂得物化原理的人知道，石材微孔孔径越小，孔内水的蒸汽压相应降低，凝固点下降。在一些极细的微孔中，水的凝固点可下降数十摄氏度。因此微孔较小的石材不易受到冰冻的破坏，而一些孔隙较大的石材如金碧辉煌、金花米黄，裂隙处理容易遭到冰冻的破坏。 为了避免和减少冻融现象对石材表面的破坏，对于室内外经常遇水的石材，我们要提前做好防护处理，防止石材内部吸入大量水份，造成石材结冰现象。 4.下雪后，要做好融雪剂对石材影响的预防工作，为了防止路滑或快速除雪，路面上往往要撒工业融雪剂。融雪剂是一种可以降低冰雪融化温度的化学药剂，主要成份是醋酸钾和氯盐。常用的融雪剂一般是价格低廉的氯盐，这种融雪剂对柏油路有一定腐蚀性。 抛撒在路面上的融雪剂，被行人的鞋子带到建筑物大厅的石材地面上，会腐蚀石材地面，造成地面的失光。针对这种情况，我们需要提前铺贴好室外刮水地垫，室内石材地面也要铺好吸水地垫，做好防御系统。冰雪融化之后，要及时做好大厅地面清洗工作，清除完残留的融雪剂，并做好石材表面的结晶抛光工作。 打个生动的比喻，天冷了人们要加衣服保暖，而石材也是有生命的。也会感到寒冷，进入寒冬季节，我们要及时为石材披上保暖的“外套”。 文章链接来源www.slfsy.com
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