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分析客户对环氧地坪施工中应注意的问题
发布时间:2019-03-15浏览次数:0

近几年,无锡环氧地坪在我国有了很大的发展,尤其在生产车间、超市、地下车库、展馆、教室、实验室等场合得到普遍使用。环氧树脂地坪洁净度高、耐磨、耐腐蚀、抗冲击、无接缝、质地坚实、保养方便、维护费用低且具有很好的装饰效果。当然,保证这些优点的体现,需要进行全过程的质量控制,从基材质量、基面处理到涂装环境、涂装方案,都要结合环氧树脂地坪的施工过程及特点,进行相应的质量控制。环氧地坪施工要注意哪些要点?

In recent years, epoxy flooring has made great progress in China, especially in the production workshop, supermarket, underground garage, exhibition hall, classroom, laboratory and other occasions have been widely used. Epoxy floor has high cleanliness, wear resistance, corrosion resistance, impact resistance, seamless, solid texture, easy maintenance, low maintenance cost and good decorative effect. Of course, to ensure these advantages, it is necessary to control the quality of the whole process, from the quality of the base material, the treatment of the base surface to the painting environment and the painting scheme, combining with the construction process and characteristics of the epoxy floor, to carry out the corresponding quality control. What points should be paid attention to in the construction of epoxy floor? 

基材质量

Substrate quality

基材也就是环氧施工的基础层,通常以混凝土地面为主,地面状况对终的环氧地坪工程质量影响很大,如果地面状况达不到要求,环氧工程就很难做好,而且在环氧地坪使用过程中常会出现起壳、脱落、起泡等现象。因而,良好的基材状况是保证环氧地坪工程质量的前提,有些基材不符合环氧环氧地坪涂装的要求,则不应选用此地面装饰方式。一般环氧环氧地坪对混凝土基材的要求如下:

The base material is the foundation layer of epoxy construction, which is mainly concrete floor. The ground condition has a great influence on the quality of the final epoxy floor project. If the ground condition does not meet the requirements, it is difficult to do well in the epoxy floor project, and in the process of using the epoxy floor, there are often phenomena such as shelling, falling off and foaming. Therefore, good base material condition is the premise to ensure the quality of epoxy flooring project. Some base materials do not meet the requirements of epoxy flooring painting, so this floor decoration method should not be selected. The General requirements of epoxy flooring for concrete substrates are as follows:

1、混凝土要求平整密实,强度要求不低于C20;若强度太差,必然影响涂层耐压、抗冲性能及耐久性。

1. Concrete should be flat and compact, and its strength should be no less than C20. If the strength is too poor, it will inevitably affect the compressive, impact resistance and durability of the coating.

2、地面平整度一般要求在2m范围内落差不大于2mm好用抹光机抹平并收光);如落差较大,则地坪涂层需加厚以减小落差。

2. Ground smoothness generally requires a drop of less than 2 m m within the range of 2 m to be smoothed and glowed by a polisher. If the drop is large, the coating on the ground needs to be thickened to reduce the drop.

3、如需涂装的地面处于底层,地下水位较高,则混凝土底层应做好防水处理,避免地下水上升形成的蒸汽压顶起地坪涂层而引起起泡、起壳现象。

3. If the ground to be coated is at the bottom and the groundwater level is high, the concrete bottom should be waterproof, so as to avoid the bubbling and shelling caused by the vapor pressure caused by the rise of groundwater.

4、新建混凝土干燥至少3周以上,含水率不高于6%,且在养护干燥过程中避免局部淋雨及地面积水,否则易引起局部混凝土水分含量超标。

4. New-built concrete is dried for at least 3 weeks, and its moisture content is not higher than 6%. In the process of curing and drying, local raining and surface water should be avoided. Otherwise, local concrete moisture content will easily exceed the standard.

5、楼板、钢筋混凝土梁等构件上的细石混凝土找平层强度不应低于C20,厚度不低于0mm。

5. The strength of fine stone concrete leveling layer on floor, reinforced concrete beam and other components should not be lower than C20, and the thickness should not be less than 0 mm.

6、对损坏的混凝土表面修补或找平时,应采用强度等级不小于C20的细石混凝土,找平厚度不应小于30mm;需用水泥砂浆找平时,应先涂一层混凝土界面处理剂,再按设计厚度找平。当施工过程不宜进行上述操作时,可采用树脂砂浆或聚合物水泥砂浆找平。

6. For repairing or leveling damaged concrete surface, fine stone concrete with strength grade not less than C20 should be adopted, leveling thickness should not be less than 30mm; for leveling with cement mortar, a layer of concrete interface treatment agent should be coated first, and then leveling according to the design thickness. Resin mortar or polymer cement mortar can be used to leveling when the above operation is not suitable in the construction process.

7、细节部位,如落水管周围、门槛处等混凝土应平整,棱角应平直。

7. The details, such as the concrete around the downspout pipe and the threshold, should be level and the edges and corners should be straight.

8、大面积混凝土基层应根据基材状况切割合理伸缩缝留待地坪涂装时处理,为保持地面美观,尽量将伸缩缝隐蔽在隔断下,若不行,则在环氧地坪施工时留缝,然后用弹性胶灌缝。

8. Large area concrete base should cut reasonable expansion joints according to the condition of base material and leave them to be treated when the floor is painted. In order to keep the ground beautiful, the expansion joints should be concealed under the partition as far as possible. If not, the expansion joints should be retained during the construction of epoxy floor and then filled with elastic glue.


基面处理

Base surface processing

基面处理不是简单的“铲一铲,扫一扫,去除灰尘”,而是去除浮层及污物,提高地面整体平整度,获得均一的粗糙表面以利于涂层附着。科学的地坪涂装十分重视基材处理,并采用专业的处理机械进行处理。

Base surface treatment is not simply "shovel one shovel, sweep one shovel, remove dust", but to remove floating layer and dirt, improve the overall smoothness of the ground, obtain uniform rough surface to facilitate coating adhesion. Scientific floor coating attaches great importance to the treatment of base materials and adopts professional processing machinery to deal with them.

1、使用打磨机进行整体打磨,清除表面水泥浮浆或其他粘附物,将表面打磨粗糙。

1. Use a grinder for overall grinding, remove surface cement slurry or other adhesives, and grind the surface roughly.

2、采用吸尘器全面吸尘处理干净。

2. Use a vacuum cleaner to clean up.

3、边缘作重点人工打毛处理。

3. The edge work should focus on manual wool beating.

4、对地面进行检查,如有油渍,用清洁剂进行除油清洗;如有局部潮湿的地面,需要进行烘干。

4. Check the ground. If there is oil stain, clean it with detergent. If there is local damp ground, it needs to be dried.

5、对于裂缝和小坑等,用树脂砂浆预先补平;对于伸缩缝,用切割机切成0.5cm×0.5cm凹槽,再用柔性环氧树脂砂浆进行平整处理。

5. For cracks and pits, resin mortar is used to pre-flatten them; for expansion joints, 0.5 cm * 0.5 cm grooves are cut by cutting machine, and then smoothed with flexible epoxy mortar.

6、对于旧漆地面,如旧漆层附着不牢,需采用地面铣刨机整体去除旧漆层,1mm厚度以下旧漆层可采用金刚切削刀处理。

6. For the old lacquer floor, if the old lacquer layer does not adhere well, the whole old lacquer layer should be removed by ground milling machine. The old lacquer layer below 1 mm thickness can be treated by diamond cutter.


涂装环境

Painting environment

涂装环境条件对地坪涂装工程质量影响很大,只有在符合该要求的环境下施工,才能达到好的效果,目前常用的环氧地坪涂料对涂装环境的要求一般如下:

The environmental conditions of painting have a great influence on the quality of floor painting project. Only when the construction is carried out in the environment that meets the requirements can the good results be achieved. The requirements of epoxy floor coating for painting environment are generally as follows:

1、涂装环境温度宜在10℃以上。地坪涂装时一般都采用胺类固化剂,而环氧基与胺基反应在10℃以下很缓慢,5℃以下基本不反应。

1. The ambient temperature of painting should be above 10 C. Amine curing agents are generally used in floor coating, while the reaction between epoxy group and amine group is very slow below 10 C, and almost no reaction below 5 C.

2、基材表面温度应高于涂装环境露点3℃以上。若此条件达不到,一方面底材表面易结露,造成后道涂膜附着力不佳,另一方面,在涂漆后,漆膜未干前表面易结露(有一层水膜),造成表面缺陷。特别是面漆,在此情况下,水气易与漆中的胺类固化剂反应,造成涂膜表面光泽低、发雾、发白、发粘、油点、硬度低等缺陷,大大降低表面装饰效果,严重时造成返工。

2. The surface temperature of the base material should be higher than the dew point of the coating environment above 3 C. If this condition is not reached, on the one hand, the surface of the substrate is easy to dew, resulting in poor adhesion of the back coating, on the other hand, after painting, the surface of the paint film is easy to dew before drying (there is a layer of water film), resulting in surface defects. Especially topcoat, in this case, water vapor is easy to react with amine curing agent in the paint, resulting in low gloss, fogging, whitening, sticking, oil point, low hardness and other defects of the film surface, greatly reducing the decorative effect of the surface, causing rework in serious cases.

3、无锡环氧地坪涂装要求洁净无尘的涂装环境,在养护期间要求环境密闭等,也对工程质量影响很大。这包括施工场所是否有扬尘,施工场所是否会淋雨等。

3. Floor painting requires clean and dustless painting environment, and environmental sealing during maintenance, which also has a great impact on the quality of the project. This includes whether there is dust in the construction site, whether the construction site will be rained and so on.


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