施工過後环氧地坪伸縮縫的處理方法有哪些

眾所周知，环氧地坪完工後的效果是整體無縫的。所以在施工环氧地坪時，需要先處理混凝土地面的一些伸縮縫。無論施工环氧地坪塗層的材料質量多好，過瞭一年，經歷熱脹冷縮，如果原混凝土地面出現開裂的情況，則附在上層的环氧地坪層也會開裂。因此在环氧地坪塗料塗裝時，环氧地坪施工單位需與業主協商，對混凝土伸縮縫進行適當的處理，以達到雙方均預期和可接受的效果，以避免工程質量糾紛。
As we all know, the effect of the epoxy floor is seamless after completion. Therefore, when constructing epoxy floor, we need to deal with some expansion joints of concrete floor. No matter how good the material quality of the epoxy floor coating is, after one year, the epoxy floor coating will crack if the original concrete floor cracks. Therefore, when coating the floor coating, the floor construction unit should consult with the owner to deal with the concrete expansion joint properly, so as to achieve the expected and acceptable effect of both sides, so as to avoid engineering quality disputes.
01环氧樹脂砂漿填充
Epoxy resin mortar filling
在环氧地坪漆塗裝時，用环氧樹脂砂漿類（應是無溶劑產品）剛性物質將伸縮縫進行填充，然後按照地坪施工工藝進行塗裝。
When epoxy floor paint is applied, expansion joints are filled with rigid materials of epoxy resin mortar (which should be solvent-free products), and then coated according to floor construction technology.
如果業主允許地面存在均一平直的伸縮縫，則可在地坪塗裝完畢後用切割機在原伸縮縫位置切割2-5毫米寬的伸縮縫，給混凝土留下伸縮的空間，可避免日後地面出現不均一的裂縫和減少地坪塗層沿裂縫起殼的現象。通常隻有在地面裝飾要求不高的場合，這種方式才能為業主所接受。
If the owner permits the existence of uniform and straight expansion joints on the ground, the expansion joints 2-5 mm wide can be cut by the cutter at the original expansion joints position after the painting of the ground, leaving expansion space for the concrete, which can avoid uneven cracks on the ground and reduce the phenomenon of crust formation along the cracks of the ground coating in the future. Usually only when the floor decoration requirem透水地坪ents are not high, this way can be accepted by the owners.
缺點：因為环氧樹脂砂漿類剛性物質沒有彈性，抵抗不瞭混凝土因為熱脹冷縮反應時收縮的壓力，容易導致伸縮縫處或附近印花地坪的环氧地坪塗層出現開裂和起殼現象。
Disadvantage: Because the rigid material like epoxy mortar is inelastic, it can not resist the shrinkage pressure of concrete due to thermal expansion and cold contraction reaction, which easily leads to cracking and shelling of the epoxy floor coating at or near the expansion joint.
02彈性膠填充
Elastic glue filling
在环氧地坪漆塗裝時，采用彈性物質將伸縮縫進行填充補平，然後塗裝中塗層和面漆。
When epoxy floor paint is applied, elastic material is used to fill and flatten expansion joints, and then coatings and topcoats are applied.
具體操作如下：
The specific operation is as follows:
首先檢驗各伸縮縫，
First, check the expansion joints.
1）對於寬度在5mm以上的伸縮縫：將縫內雜物清理幹凈，然後配好彈性膠進行填充並刮平；
1) For expansion joints with a width of more than 5 mm: clean up the debris in the joints, then fill them with elastic glue and scrape them flat.
2）對於寬度小於5mm的伸縮縫：由於縫太細不易填充，需先用切割機切割達到一定寬度和深度（深度在1mm以上比較好）的梯形狀，需保證切割整齊，然後才能管住彈性膠。
2) For expansion joints with width less than 5 mm: because the seams are too thin to be filled, it is necessary to use a cutting machine to cut the ladder shape with a certain width and depth (the depth is better than 1 mm). It is necessary to ensure that the cutting is neat, and then the elastomer can be managed.
彈性膠填充方法：采用玻璃槍（打膠槍）填充，縫隙填滿後，用鏟刀刮平並去除多餘膠料，彈性膠填充需有一定的深度，填充前縫隙內的灰塵等雜物應清楚幹凈，否則易出現彈性膠與混凝土附著不牢而脫離的現象。膠料幹燥後即可進行後續塗裝作業。
Elastic glue filling method: glass gun (glue gun) is used to fill the gap. After filling the gap, scrape and remove the excess glue with a spade. Elastic glue filling needs a certain depth. The dust and other debris in the filling front gap should be clear and clean. Otherwise, it is easy to appear the phenomenon that elastic glue and concrete are not firmly attached and separated. After the drying, the coating can be carried out.
這種處理方式和第一種方式相比，由於彈性膠分散混凝土收縮而形成的應力，伸縮縫上塗層開裂的可能性大大降低，地面整體上顏色一致，但由於彈性膠上的塗層仍為剛性的，當混凝土收縮較劇烈是，彈性膠上的环氧地坪層（中塗層和面漆）仍有可能開裂，但裂縫不會很大。
Compared with the first method, because of the stress caused by the shrinkage of elastic glue dispersing concrete, the possibility of cracking of the coating on the expansion joint is greatly reduced, and the overall color of the ground is the same. However, because the coating on the elastic glue is still rigid, when the shrinkage of concrete is more severe, the epoxy floor layer on the elastic glue is ( The middle coat and top coat may still crack, but the cracks will not be large.
03聚氨酯彈性膠填充
Polyurethane elastic glue filling
在环氧地坪塗料塗裝時，先盡量將伸縮縫留著，即使覆蓋，也應記錄下所在位置，然後再地坪塗裝完畢後，將伸縮縫切割修飾整齊，保證寬度在5mm以上，最好修飾成上寬下窄的梯形狀，然後清除幹凈縫內的灰塵及雜物，貼縫兩邊貼上膠帶，采用聚氨酯彈性交填充縫隙直且平直，在彈性膠半幹狀態撕去膠帶。
When coating epoxy floor coatings, first try to keep the expansion joints, even if covered, it should also record the location, and then after finishing the floor coating, cut the expansion joints neatly to ensure the width of more than 5 mm, preferably modified into a narrow ladder shape, and then clean up the dust and debris in the joints, two seams. Adhesive tape is put on the edge, and polyurethane elastic cross-filling is used to fill the gap straight and straight, and the tape is torn off in the semi-dry state of elastic adhesive.
這種處理方法在潔凈度及美觀程度要求較高的電子廠、制藥廠、精密儀器制造廠常被采用，可基本避免伸縮縫處地坪塗層的開裂現象，也比較美觀，缺點是由於目前聚氨酯彈性膠的顏色比較少（一般為草綠色及鐵紅色），不易達到整體地坪塗層的顏色一致，同時隨著混凝土的熱脹冷縮，聚氨酯彈性膠也會隨之出現凸起和凹陷的現象。
This treatment method is often used in electronic factories, pharmaceutical factories and precision instrument factories with high requirements for cleanliness and aesthetics. It can basically avoid cracking of floor coating at expansion joints and is more beautiful. The disadvantage is that the color of polyurethane elastomer is relatively small (usually grass green and iron red), so it is not easy. At the same time, with the thermal expansion and cold shrinkage of concrete, polyurethane elastomer will also appear bulge and depression.
04粘貼玻璃纖維佈
Paste fiberglass cloth
局部的地面伸縮縫，也常采用鋪貼玻璃纖維佈以增強抗裂性的方法，施工方式是：先用环氧砂漿材料將伸縮縫填充平整，然後塗上底塗材料，再粘貼寬度10mm左右的玻璃纖維佈1-2道，接下來滾塗中塗材料，面漆等。
Local ground expansion joints are often covered with fiberglass cloth to enhance crack resistance. The construction method is: first fill the expansion joints with epoxy mortar, then coat with primer material, then paste 1-2 channels of fiberglass cloth with width of about 10 mm, and then roll coating with materials, topcoat and so on.
這種方法既能保證地面整體顏色一致，還能抵禦混凝土收縮引起的開裂，但是如果地坪塗層的設計厚度過薄時，不易操作，易出現貼佈處地面高於其他處的現象。所以至少是2mm以上的环氧地坪才能采用這種方案。
This method can not only ensure that the overall color of the ground is the same, but also resist the cracking caused by concrete shrinkage. But if the design thickness of the floor coating is too thin, it is not easy to operate, and it is easy to appear the phenomenon that the ground is higher than other places. So at least 2mm above the epoxy floor can be used in this program.
總之，在环氧地坪塗料塗裝時，對伸縮縫的處理應加以重視，至於采用哪種處理方式，需要根據地面的具體情況，再與甲方協商，一致決定。
In short, in the epoxy floor coating, attention should be paid to the treatment of expansion joints. As for which treatment method should be adopted, it is necessary to consult with Party A and decide unanimously according to the specific conditions of the ground.