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洞石如何进行翻新修补

来源:海浪花石材
洞石,是一种多孔性的海相沉积岩,由于在成岩的过程中会出现孔隙,同时因为其自身的主要成分是碳酸钙或碳酸镁,自身很容易被水溶解腐蚀,所以这些堆积物中会出?#20013;?#22810;天然的无规则的孔洞。
洞石的色调以米黄居多,使人感到温和,质感丰富,条纹清晰,促使装饰的建筑物常有强烈的文化和历史韵味,被世界上多处建筑使用于墙面和地面。
墙面如:意大利罗马角斗场大部分就是洞石,虽然历经2000年风霜,但依然宏伟壮观;中国银行总部大厦和中国驻美国大使馆,洞石的使用面积达到了两万多平方。
当然也有应用于地面的情况,由于洞石大量孔洞的存在,石材的吸水率上升、强度下降,耐候性较差,同时由于孔隙较多,会堆积很多灰尘,?#23721;?#28165;洁。
那么,洞石该如何进行处理,从而避免这个问题呢?下面小编就?#20174;?#22823;家分享一下。
1、干磨清理:
用大理石150目磨片干磨一次,去除石材表面的老化层、氧化层,打开石材的毛孔,保证后期石材防护剂的?#34892;?#28183;入;
2、涂刷防护:
涂刷复合纳米硅氧烷防护剂,防止石材研磨过程中的水进入石材中去,引起石材的病变。操作时注意要求石材保持干净、干燥,将防护剂倒在干净干燥的水桶中,用涂水器蘸湿涂刷,保证均匀、足量,一般防护剂在石材表面能够停留20?#31181;?#21040;30?#31181;?#19981;干,即视为足量;涂刷防护剂完毕后,常温下养生48小时,温度每下降10度,养生时间延长2-4倍;另注意沿缝涂刷氟素防护剂,防止后期渗?#28023;?br /> 3、开缝补?#28023;?br /> 待石材防护剂表面干燥后即可用无尘开缝机进行开缝,补云石?#28023;?br /> 4、石材研磨:
在防护剂养生时间结束后,用150目带水研磨整平石材;
5、石材酸洗:
150目研磨结束,保证石材表面清洁干净干燥后,进行酸洗。
操作如下:
用花岗岩清洗剂+花岗岩水斑净+水按照1:1:1比例混合,然后用地刷或者手刷进行酸洗2-3次 (酸洗直至孔洞清洗干净),每次两遍半,每次清洗等待40?#31181;?#21518;将药液用吸水机吸掉。注意:此步骤一定不能水洗,否则补不上?#28023;?br /> 6、修补孔洞:
根据甲方要求进行,选择对应的云石?#28023;?#34917;胶用直板加锯齿板配合使用,保证孔洞的空气排空。胶干后,用150目再次研磨,直至石材表面没有余?#28023;?br /> 7、逐?#22534;?#30952;:
150目研磨结束后,逐?#22534;?#30952;至3000目 ;
8、涂刷防护:
根据石材所在场所选择?#28010;?#25110;防油的油性防护剂。要求与干磨石材后涂刷防护剂一样,必须遵循干净、干燥、足量、均匀、品级、养生的原则,养生时间为防护剂干燥后即可施工;
9、循章抛光:
选择大理石抛光药剂进行抛光即可。
如:JT-315抛光2次、JT-318抛光2次、JT-318+JT-308=3:1抛光2次; ?#37096;?#20197;用JT-315抛光2次、JT-318抛光2次、JT-317+JT-310A=1:1抛光2次。
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贵州快三软件
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