问题一：济南抹面砂浆上墙干燥时间问题

Problem 1: Drying time of Jinan plastering mortar on the wall

抹灰上墙干燥时间主要与墙面吸水程度、砂浆保水性、砂浆凝结时间、环境湿度四个方面有关。

The drying time of plastering on the wall is mainly related to four aspects: water absorption of the wall, water retention of the mortar, setting time of the mortar, and environmental humidity.

1.墙面湿度正常且空气湿度正常且施工厚度在2㎝内。此种情况上墙干燥时间正常，与现场拌制的砂浆一样，能满足大部份工地的使用要求。

1. The wall humidity is normal and the air humidity is normal, and the construction thickness is within 2 cm. In this case, the drying time of the wall is normal, which is the same as the mortar mixed on site and can meet the usage requirements of most construction sites.

2.墙面湿度很高或空气湿度很高或施工厚度超过2cm。此种情况砂浆上墙干燥时间比现场拌制的砂浆要长1至3个小时。

2. The wall humidity is high or the air humidity is high, or the construction thickness exceeds 2cm. In this case, the drying time of mortar on the wall is 1 to 3 hours longer than that of on-site mixed mortar.

3.墙面湿度很高且空气湿度很高且施工厚度超过2cm。此种情况砂浆上墙干燥时间会非常长。

3. The wall humidity is high and the air humidity is high, and the construction thickness exceeds 2cm. In this case, the drying time of mortar on the wall will be very long.

解决方法：

Solution:

1.提前1-2天对工地墙面淋水，以增加墙面对砂浆的吸水性；

1. Spray water on the construction site wall 1-2 days in advance to increase the water absorption of the wall to the mortar;

2.建议对施工很厚的部位先提前甩浆至一定厚度至标高 1~2cm 左右，待第二天一次性可补平；

2. It is recommended to spray the slurry in advance to a certain thickness of about 1-2 cm above the elevation for the thick parts during construction, and it can be leveled in one go the next day;

3.缩短砂浆的开放时间，让砂浆快速达到凝结时间来达到缩短干燥时间的目的。

3. Shorten the opening time of the mortar, allowing it to quickly reach the setting time to achieve the goal of shortening the drying time.

问题二：砂浆粗细问题

Problem 2: The issue of mortar thickness

粗细问题是指砂浆的粗细程度，砂的粗细程度会直接影响到砂浆的粗细程度。砂浆太粗时工人施工面粗，不好抹光，砂浆太细时工人抹墙时一次抹得太薄，影响施工进度，砂浆硬化后的表面硬度也会降低。

The issue of fineness refers to the fineness of mortar, which directly affects the fineness of mortar. When the mortar is too thick, the workers' construction surface is rough and difficult to smooth. When the mortar is too fine, the workers' wall plastering is too thin at once, which affects the construction progress. The surface hardness of the hardened mortar will also decrease.

解决方法：

Solution:

生产前一定要到砂场对砂的粗细提前判断，并将砂细度模数控制在 2.4~2.7为佳。

Before production, it is necessary to go to the sand yard to determine the thickness of the sand in advance, and it is best to control the sand fineness modulus between 2.4 and 2.7.

问题三：砂浆中的石子问题

Problem 3: Stone problem in mortar

石子问题是指砂浆中出现大的石子，严重影响砂浆的使用性能的情况。石子的出现主要由六个途径带入：（搅拌机、砂场、搅拌车、上砂地仓及皮带、中间砂斗、筛砂机）

Stone problem refers to the occurrence of large stones in mortar, which seriously affects the performance of the mortar. The emergence of stones is mainly brought in six ways: (mixer, sand yard, mixer truck, sand bin and belt, intermediate sand hopper, and sand screening machine)

解决方法：

Solution:

1.严格清理机内的砂子；

1. Strictly clean the sand inside the machine;

2.强化铲车司机的工作意识，避免铲砂时混入石子；

2. Strengthen the work awareness of forklift drivers to avoid mixing stones when shoveling sand;

3.确保搅拌车内清洗干净；

3. Ensure that the mixing truck is cleaned thoroughly;

4.上砂地仓及皮带上要进行严格清理；

4. Strict cleaning should be carried out on the sand bin and belt;

5.要尽量避免不同材料斗相距太近，并要确保砂斗壁没有穿孔，以确保不会混料；

5. Try to avoid different material buckets being too close together, and ensure that the sand bucket walls are not perforated to ensure no mixing of materials;

6.定期检查筛砂机的筛网，以免破损后造成砂的质量波动。

6. Regularly check the screen of the sand screening machine to avoid damage that may cause fluctuations in the quality of the sand.

抹面砂浆易出现的3大质量问题及解决措施就讲解完毕了，希望您认真看完后能够有效避免问题，还有什么想了解的就来我们网站https://www.jnfhjc.com咨询！

The three major quality issues and solutions that are prone to occur in plastering mortar have been explained. We hope that after carefully reading them, you can effectively avoid them. If you have any further questions, please come to our website https://www.jnfhjc.com consulting service