construction before the construction of the technical staff to confirm the following items: base area, surface state, the choice of materials and construction structure, familiar with material specification, formulation, dosage; after construction, construction and technical personnel to confirm that there is no obvious wipe scar, pore, grain, orange peel and other defects, there is no color and other defects in the film, the color and the sample, has no color, coating a not according to the normal hardening law (with his nails to a simple judgment); construction personnel should strictly according to each step of the construction of public enforcement found strange should find out the reason and recorded in order to prevent recurrence. In case no settlement shall immediately report to the technical personnel. As far as possible the use of ordinary portland cement (intensity level is not less than Pa 42.5M)
Cement is a kind of water hardening cementitious material. Compared with ordinary portland cement, slag cement, Portland pozzolana cement, with high heat of hydration, the advantages of good frost resistance, convenient for the winter construction, can effectively prevent the ground early and have to face the dangers of starvation and exposure. In addition, it has the advantages of good water retention, small dry shrinkage, especially early strength, which is favorable to ensure the ground quality and construction progress. Using ordinary portland cement is the premise to ensure the strength of cement mortar and prevent the ground from the ground.
3 prohibit the use of expired cement and damp cement
Cement storage period of more than 3 months is called expired cement. The water vapor and carbon dioxide in the air of expired cement can be chemically reacted, and the generated calcium carbonate can weaken the cement bond performance and reduce the water heat. When the cement is used for the ground surface, the strength, hardness and wear resistance of the cement can be decreased significantly, and the sand will be caused. Moisture cement is a cement and water to condense into blocks, so that the activity greatly reduced, poor cementation, compared with expired cement, quality is better, so can not be used in the ground surface layer.
4 ground surface layer mortar not to use fine sand
All kinds of pressure, friction, impact, the ground has a certain strength and wear resistance. Sand, sand in the intensity or wear resistance are better than fine sand. The mortar of fine sand mixed mortar is often dry, the ground is easy to crack, and the water retention is also poor, which is not conducive to the ground mortar pressure. For the use of sand, but also pay attention to the containing mud and the amount of not more than 3%, otherwise it will affect the cement and sand cementation, reduce the strength of mortar, the ground floor will certainly be sand.
5 to master the time of pressure
Cement mortar should be broken with the beat, with wood floated, iron with light pressure. The iron works to be controlled in the final setting. Pressure light premature, the surface will swim floating a layer of water, is bound to affect the strength of mortar; pressure light time too late, easy damage of cement gel coagulation structure, influence on the mortar strength of growth, surface pores also difficult to eliminate, sand phenomenon will produce.
Four, in addition to the above-mentioned phenomenon should pay attention to, the use of other changes in the course of the film to cause enough attention: yellow discoloration of the sun was particularly severe place is easy to; wear often personnel, goods traffic situations happen; scratch accident sharp objects across the wound repair, but there are traces), scratches too deep to be timely repair, otherwise it will affect the the surrounding coating adhesion; softening often flowing water surface, or surface impregnation chemical solvents. Construction end, the site to the customer, the customer should be reminded of the epoxy coating maintenance and maintenance methods, in order to maintain the good quality of the ground, including: daily cleaning can be used soft broom or rag cleaning; serious dirt when using a neutral detergent, washing with a rag, and then clean, full drying to play a thin wax关于质量管理规定，施工之前施工技术人员要确认以下项目：基层面积及基面状态，选择材料和施工结构，熟悉材料说明书、配比、用量；施工之后施工技术人员要确认有没有明显抹痕、气孔、颗粒、桔皮等缺陷，有没有颜色不均及其他涂膜缺陷，颜色是否与样本一样、有无色差，涂膜上一否按正常规律硬化(用指甲来简单判断)；施工人员应严格按每一步施工公共执行，发现有异样应找出原因并记录防止再发生，如不能解决应立即向技术人员汇报。尽可能使用普通硅酸盐水泥（强度等级不小于42.5M Pa）
　　水泥是一种水硬性胶凝材料。普通硅酸盐水泥与矿渣水泥、火山灰质水泥相比，具有水化热高、抗冻性好的优点，有利于冬季施工，能有效地防止地面早期受冻。此外，它还具有保水性较好、干缩性小，特别是早期强度高的优点，对确保地面质量和施工进度都很有利。采用普通硅酸盐水泥是保证水泥砂浆强度、防止楼地面起砂所必备的前提。
　　3.禁止使用过期水泥和受潮水泥
　　水泥存放期超过3个月者称为过期水泥。过期水泥与空气中的水汽、二氧化碳会起化学反应，所生成的碳酸钙会减弱水泥的胶结性能，水化热减少。可见，过期水泥用于地面面层时，其强度、硬度及耐磨性能都会显着下降，导致起砂。受潮水泥是水泥与水发生作用凝结成块，从而使活性大大降低，胶结性能差，与过期水泥相比，质量更劣，所以不能用在地面面层上。
　　4.地面面层砂浆不要用细砂
　　地面承受着各种压力、摩擦、撞击，应该使地面具有一定的强度和耐磨性能。粗砂、中砂无论在强度上还是耐磨性上都胜过细砂。细砂拌制的砂浆往往干缩性大，地面易裂，且保水性也差，不利于地面砂浆压光。对于砂子的使用，还要注意含泥量不要大于3%，否则会影响水泥与砂的胶结作用，降低砂浆强度，楼地面肯定要起砂。
　　5.要掌握好压光时间
　　水泥砂浆应随铺随拍实，用木抹抹平，铁抹压光。铁抹压光工作要控制在终凝前完成。压光过早，表面会游浮一层水，必然影响砂浆强度；压光时间过迟，易损伤水泥凝胶体的凝结结构，影响砂浆强度的增长，面层的毛细孔也难消除，起砂现象即会产生。
四、除上述几类现象要注意外，使用过程中涂膜的其他变化也要引起足够重视：变色阳光晒得特别严重的地方易泛黄；磨损经常有人员、货物等通行多的情况下发生；刮痕意外锐物划过的伤口(可修复，但有痕迹)，划痕太深应及时修补，否则将影响其周围涂膜的附着力；软化经常有开水流淌的基面，或有化学溶剂浸渍表面的情况下发生。施工结束、把现场交给客户时，应向客户提醒环氧地面涂膜保养与维护方法，以便能保持地面良好的质量状态，包括：)日常清扫可用柔软扫帚或抹布清洁；严重污垢时使用中性清洁剂、用抹布水洗，然后用水清洗、充分干燥打一层薄蜡