环氧地坪施工对混凝土基面有什么要求么?1、混凝土基面平整密实,强度条件不低于C20；强度太差,会降低环氧地坪涂层的耐压、抗冲功能及耐久性；2、地面平整度通常在2M界线内，落差不大于2mm;如落差较大,则环氧地坪砂浆层需加厚以减削落差；3、如需涂装的地面处于底层,地下水位较高,则混凝土底层应作好防水办理,防止地下水蒸发顶起环氧地坪涂层而导致起泡、起壳征象；

What are the requirements for concrete base surface in epoxy floor construction? 1. The concrete base surface is smooth and compact, and the strength condition is not less than C20; too poor strength will reduce the compressive, impact resistance and durability of epoxy floor coating; 2. The ground evenness is usually within the 2M boundary, and the drop is not more than 2mm; if the drop is large, the ground mortar layer needs to be thickened to reduce the drop; 3. If the ground to be coated is at the bottom. If the groundwater level is high, the concrete bottom should be waterproofed to prevent the evaporation of groundwater from jacking up the epoxy floor coating and causing blistering and crusting. 

4、混凝土彻底干燥起码三周以上,含水率不高于6%;且在养护过程中防止淋雨及积水在地面等,不然易导致片面混凝土水分含量超标；

4. The concrete is thoroughly dried for at least three weeks, and the moisture content is not higher than 6%. In the course of maintenance, it is easy to prevent rain and water accumulation on the ground, otherwise the moisture content of one-sided concrete will exceed the standard.

5、楼板上、钢筋混凝土梁及分次浇铸的混凝土上的细石，混凝土找平层强度不应低于C20,厚度不低于30mm；

5. The strength of concrete leveling layer should not be lower than C20 and the thickness of concrete leveling layer should not be less than 30mm on floor, reinforced concrete beams and concrete cast in stages.

6、防起壳,混凝土层以及泥浆找平层需一同浇注；假如先捣混凝土层,则条件泥浆层的厚度不低于4cm ,叉车道则条件更厚一些；不起砂,硬度好,没有水泥粉化征象：

6. Shell-proof, concrete layer and mud leveling layer need to be poured together. If the concrete layer is tampered first, the thickness of mud layer is not less than 4cm, and the condition of forklift lane is thicker. No sand, good hardness and no sign of cement powdering are required.

a 、优质水泥，且标号越高越好；

A. High quality cement, and the higher the label, the better.

b 、新倒水泥泥浆层要充分调养，水泥基面平展、无坎坷不平、蜂窝麻面、水泥疙瘩，地面平展性不大于涂装。

B. The newly poured cement slurry layer should be fully maintained. The cement base surface is flat, no rough, honeycomb linen surface, cement knot, and the ground flatness is not greater than painting.

7、对损害的混凝土修护,可以采取细石混土壤,强度品级不应小于C20,厚度不应小于30mm。

7. When repairing damaged concrete, fine stone mixed soil can be adopted. The strength grade should not be less than C20 and the thickness should not be less than 30mm.

8、细活部位,如落水管外围、门坎处等混凝土应平整,棱角处应平直。

8. Fine and flexible parts, such as the periphery of the downspout pipe and the door sill, should be level and the edges and corners should be straight.