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MySQL Error: 1146 (Table 'nbsanli.pwn_News_con' doesn't exist)
#0 dbbase_sql->halt(Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=411) and uptime>(select uptime from pwn_News_con where id=411) order by uptime asc limit 1) called at [/www/wwwroot/nbsanli/includes/db.inc.php:65] #1 dbbase_sql->query(select id,title from {P}_News_con where catid=(select catid from {P}_News_con where id=411) and uptime>(select uptime from {P}_News_con where id=411) order by uptime asc limit 1) called at [/www/wwwroot/nbsanli/news/module/NewsPage.php:33] #2 NewsPage() called at [/www/wwwroot/nbsanli/includes/common.inc.php:526] #3 PrintPage() called at [/www/wwwroot/nbsanli/news/html/index.php:15] Database error: Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=411) and uptime<(select uptime from pwn_News_con where id=411) order by uptime desc limit 1
MySQL Error: 1146 (Table 'nbsanli.pwn_News_con' doesn't exist)
#0 dbbase_sql->halt(Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=411) and uptime<(select uptime from pwn_News_con where id=411) order by uptime desc limit 1) called at [/www/wwwroot/nbsanli/includes/db.inc.php:65] #1 dbbase_sql->query(select id,title from {P}_News_con where catid=(select catid from {P}_News_con where id=411) and uptime<(select uptime from {P}_News_con where id=411) order by uptime desc limit 1) called at [/www/wwwroot/nbsanli/news/module/NewsPage.php:46] #2 NewsPage() called at [/www/wwwroot/nbsanli/includes/common.inc.php:526] #3 PrintPage() called at [/www/wwwroot/nbsanli/news/html/index.php:15] 环氧地坪出现水泡的原因-宁波市江东三立墙体装饰有限公司
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环氧地坪出现水泡的原因
作者:管理员    发布于:2013-01-14 14:45:40    文字:【】【】【

  水泡对环氧地坪的质量有着严重的破坏,使固化剂无法起到粘合固化的作用,从而降低了其强度,并更容易从内部破坏地坪。目前,水泡的主要发生在一楼或者是地下室,二楼的地面偶尔会发生。那么为什么环氧地坪会出现水泡呢?

  原因一:混凝土内的水分没有处理好

  在进行建设环氧地坪工程时,施工人员对混凝土地面要进行清洗,从而把其表面上、微小洞孔的灰尘等固体脏物清洗掉,从而使整个环氧地坪的建设更加好。清洗的时候,混凝土就会吸收水分,晾晒的时间不长或者天气不好,那么就无法把混凝土内的水分完全晒干。如果不处理完内部的水分,那么在建设的时候就会产生水泡。

  原因二:水泡的出现跟温度有关

  根据实验表明,地坪内出现水泡跟温度有着密切的关系。环氧地坪是一个密封的场所,其材料会在地坪表面形成一个保护膜,从而使其处于密封状态。温度一高,其内部水分就会蒸发出来,且内部的气压也发生了变化。当然温度到达20℃,鼓包内的压力为0.01MPa时,就会产生水泡。另外随着温度不断升高,其出现水泡的时间也越短。

  综合上述,人们就知道出现水泡的两个条件,即水分和温度。有充足的水分,那么在高温当中就非常容易出现水泡,从而影响环氧地坪的质量。

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