環(huán)氧地坪漆涂裝對地面基層的要求和常見處理

環(huán)氧地坪施工前的設(shè)計(jì)和專業(yè)化施工隊(duì)伍的組織對基層的檢查和處理正確的施工組織和質(zhì)量監(jiān)督等過程的全程控制。在環(huán)氧地坪漆施工前，須清楚了解查看基面狀況，下面介紹一般環(huán)氧地坪工業(yè)環(huán)氧地坪漆涂料涂裝對地面基層的要求及常見的處理方法。1）水泥基面牢固、結(jié)實(shí)、不起殼，應(yīng)杜絕砂漿起殼現(xiàn)象，混凝土層與砂漿找平層最好一起澆筑。若先澆筑混凝土層，則要求砂漿層的厚度不低于40MM，對叉車道的要求則更厚。有關(guān)坡度應(yīng)符合設(shè)計(jì)要求，允許偏差值的2%，并且不大于30MM。

The design before the construction of epoxy flooring and the organization of professional construction team control the whole process of checking and handling the correct construction organization and quality supervision. Before the construction of epoxy floor paint, it is necessary to clearly understand and check the condition of the base layer. The following describes the requirements and common treatment methods for the ground base layer of the general epoxy floor industrial floor paint coating. 1) Cement base surface is firm, firm and can not afford shelling. Mortar shelling should be eliminated. Concrete layer and mortar leveling layer should be poured together. If the concrete layer is poured first, the thickness of the mortar layer is not less than 40MM, and the thickness of the forklift lane is thicker. The slope should meet the design requirements, and the allowable deviation is 2% and not more than 30MM. （2）要求表面不起砂，硬度高，沒有水泥粉化現(xiàn)象。新澆筑的水泥砂漿要充分保養(yǎng)。水泥基面平坦，無凹凸不平、蜂窩麻面、水泥疙瘩、其他涂料、乳膠漆、泡泡糖等殘?jiān)?。?）表面干燥，含水率小于6%，無油污，PH值應(yīng)在6.0～8.0；水泥地面養(yǎng)護(hù)期過后進(jìn)場施工前5D，基層不能再用水沖洗或被濕潤。

(2) No sand on the surface, high hardness and no cement powdering are required. The newly poured cement mortar should be fully maintained. The cement base surface is flat, without rugged, honeycomb linen, cement bumps, other coatings, latex paint, foam sugar and other residues. (3) The surface is dry, the moisture content is less than 6%, no oil pollution, and the PH value should be 6.0-8.0. After the maintenance period of cement ground, the base can no longer be washed or wetted with water 5 D before construction.

2、基層的檢查與預(yù)處理基層是環(huán)氧樹脂地坪涂料的基礎(chǔ)，要進(jìn)行詳細(xì)檢查與分析，以確定其處理措施。

2. The inspection and pretreatment of the base is the basis of epoxy floor coatings. Detailed inspection and analysis are needed to determine the treatment measures.

（1）測量抗壓強(qiáng)度。工業(yè)環(huán)氧地坪的抗壓強(qiáng)度不應(yīng)低于24MPa，為滿足某些承重要求，還可能需要更高的強(qiáng)度，應(yīng)使用回彈儀進(jìn)行強(qiáng)度測量，或取芯塊實(shí)測抗壓強(qiáng)度。

(1) Measure the compressive strength. The compressive strength of industrial floors should not be less than 24 MPa. In order to meet some important requirements, higher strength may be needed. Strength measurement should be carried out by rebound meter or coring.

（2）確定黏結(jié)強(qiáng)度?；炷粱鶎颖砻鎺缀撩缀穸葍?nèi)通常是水泥漿形成的低強(qiáng)度層。因水泥水化反應(yīng)導(dǎo)致的收縮，溫度變化或荷載的反復(fù)作用等產(chǎn)生的應(yīng)力，會導(dǎo)致黏結(jié)強(qiáng)度降低。黏結(jié)強(qiáng)度不應(yīng)低于1.5MPa。

(2) Determine the bond strength. The low strength layer formed by cement slurry is usually in the thickness of several millimeters on the surface of concrete base. The stress caused by shrinkage, temperature change or repeated action of load caused by hydration reaction of cement will lead to the decrease of bond strength. The bond strength should not be less than 1.5 MPa.

（3）基層含水率。只有在水泥基層含水率不大于6%的情況下才能進(jìn)行涂料的施工，所以含水率的測量尤為重要。確定基層含水率的最佳方法是塑料薄膜覆蓋實(shí)驗(yàn)法，即將至少1mX1m的聚乙烯薄膜用膠帶封粘在混凝土面上，待至少24小時(shí)后，根據(jù)塑料薄膜上出現(xiàn)冷凝水的數(shù)量確定含水率。

(3) Water content of grass-roots. Only when the moisture content of cement base is not more than 6%, can the coating be applied, so the measurement of moisture content is particularly important. The best method to determine the moisture content of the base course is the plastic film covering experiment method, that is, at least 1mX1m polyethylene film is sealed on the concrete surface with tape, and after at least 24 hours, the moisture content is determined according to the amount of condensation water appearing on the plastic film.

（4）環(huán)境溫度。忽略施工環(huán)境溫度因素可導(dǎo)致環(huán)氧地坪的質(zhì)量缺陷，例如黏結(jié)強(qiáng)度降低、水印、空洞、不規(guī)則表面及硬化不兗分等。因此，對于環(huán)境溫度（氣溫）、基層表面的溫度、露點(diǎn)溫度等數(shù)所數(shù)據(jù)，在施工中必須每天測量數(shù)次。

(4) Environmental temperature. Ignoring the temperature factors of construction environment can lead to quality defects of epoxy floor, such as reduced bond strength, watermarking, voids, irregular surface and hardening. Therefore, the environmental temperature (air temperature), the surface temperature of the grass-roots, dew point temperature and other data, in the construction must be measured several times a day.

（5）基層清理。對于油脂、機(jī)油或有機(jī)酸、無機(jī)酸或水泥漿所引起的污染，如果不進(jìn)行徹底清除，將影響環(huán)氧地坪漆涂料層的黏結(jié)性能。因此地，必須用機(jī)械方法清理表面，并通過測定黏結(jié)強(qiáng)度進(jìn)行檢查。

(5) grass-roots clean-up. For oil, oil or organic acid, inorganic acid or cement slurry pollution, if not thoroughly removed, will affect the bonding performance of epoxy floor paint coating. Therefore, the surface must be cleaned mechanically and checked by measuring the bond strength.

3、基層處理

3. Grass-roots treatment

（1）為使環(huán)氧地坪涂料的施工達(dá)到良好的效果，對于尚未找平的地面，應(yīng)首先施工水泥找平層以進(jìn)行找平處理。土建方找平時(shí)，在水泥初凝時(shí)，用專業(yè)地面機(jī)械對地面進(jìn)行磨平處理。經(jīng)過基層處理再涂裝的環(huán)氧涂裝地坪的表面會更平整、光亮，使用壽命也會提高。

(1) In order to achieve good results in the construction of epoxy floor coating, cement leveling layer should be first applied to leveling the ground that has not yet been leveled. When the cement is initially solidified, the civil engineer uses professional ground machinery to grind the ground. The surface of epoxy-coated floor will be smoother, brighter and the service life will be improved after basic treatment and re-coating.

（2）待水泥層干燥后（大約28天），用打磨機(jī)對地面進(jìn)行整體打磨處理，使其表面平整，水泥毛細(xì)孔全部敞開。

(2) After the cement layer is dried (about 28 days), the whole ground is polished with a grinder to make the surface smooth and the cement capillary holes open.

（3）對于有油污（食用油、機(jī)油）的基層，先用表面處理劑噴灑于用水沖濕的地表面，反復(fù)擦洗，直到無油污為止。

(3) For the base layer with oil contamination (edible oil, engine oil), the surface treatment agent is sprayed on the surface wetted with water and scrubbed repeatedly until there is no oil contamination.