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抹面砂浆常遇这三种质量问题怎么解决

来源: 日期:2022-10-22 发布人:juyehe

抹面砂浆主要施工于各种墙体保温面层,形成优异抗裂防渗面层,有利于保护保温基层的综合性能,提高保温面层界面的亲和性,为后序饰面材料施工提供优异的界面基层。下面来讲讲济南抹面砂浆常遇这三种质量问题怎么解决。
Plastering mortar is mainly applied to various wall insulation surface courses to form an excellent crack resistant and anti-seepage surface course, which is conducive to protecting the comprehensive performance of the insulation base course, improving the affinity of the insulation surface course interface, and providing an excellent interface base course for the subsequent finishing material construction. Now let's talk about how to solve the three quality problems often encountered in Jinan plastering mortar.
(1)空鼓
(1) Empty drum
主要原因是:①基层处理不干净,如基层表面附着的灰尘和疏松物、脱模剂和油渍等,这些杂物不清除干净会影响抹灰层与基层的粘结。
The main reasons are: ① The base course is not cleaned, such as the dust and loose matter, release agent and oil stains attached to the base course surface, which will affect the bonding between the plastering layer and the base course if not cleaned.
②有凹处或一次抹灰太厚等,在砂浆干燥之前砂浆层由于重力作用已与基层脱离。
② The mortar layer has been separated from the base course due to gravity before the mortar is dried due to concave or too thick plastering at one time.
③界面处理不当或未做界面处理,基面过于光滑,不能抑制砂浆的干缩导致砂浆层与基层脱离。
③ Improper interface treatment or no interface treatment is made, and the base surface is too smooth to prevent mortar from drying and causing separation of the mortar layer from the base course.
抹灰前应将基层清扫干净,并提前2-3天开始向墙面浇水,渗水深度达10毫米后方可施工,有深凹处,应提前补平砂浆。另外,应提前喷涂好界面砂浆。
Before plastering, the base course shall be cleaned, and the wall shall be watered 2-3 days in advance. The construction can be started only after the water penetration depth reaches 10mm. If there are deep recesses, the mortar shall be filled in advance. In addition, the interface mortar shall be sprayed in advance.
(2)脱层
(2) Delamination
主要是由于底层灰层过干。防治方法除按规范要求施工外,如发现底层已干,应清水湿润、待底层湿润透后再抹面层。
It is mainly because the bottom ash layer is too dry. In addition to the construction according to the specification requirements, if the bottom layer is found to be dry, it shall be wetted with clean water, and the surface layer shall be plastered after the bottom layer is thoroughly wetted.
济南抹面砂浆
(3)爆灰
(3) Explosive ash
主要原因是材料质量不好,有杂质或泥土。施工前应仔细检查材料质量,砂子要经细筛筛分后方能使用。
The main reason is the poor quality of materials, impurities or soil. Before construction, the material quality shall be carefully checked, and the sand shall be screened before use.
(4)裂缝
(4) Cracks
主要原因是抹灰层过厚而未采取抗裂措施或由于空鼓而产生的开裂,如果抹灰面很厚,施工中应先填底层,或在底灰抹好后喷防裂剂进行处理。
The main reason is that the plastering layer is too thick and no crack resistance measures are taken or cracks are caused by hollowing. If the plastering surface is very thick, the bottom layer shall be filled first during construction, or the anti crack agent shall be sprayed after the bottom plaster is plastered.
水泥抹灰砂浆出现以上情况,应该进行返工修复,修复时,将脱层、空鼓、爆灰及裂缝部分清除干净,再按规范要求进行局部的抹灰。
In case of the above situations, the cement plastering mortar shall be reworked and repaired. During the repair, the delamination, hollowing, mortar explosion and cracks shall be removed, and then the local plastering shall be carried out according to the specification requirements.
此外要注意抹面砂浆现场施工不需添加任何外加剂,严格控制水固比和抹灰时间。运输过程中应注意防潮、防雨、防曝晒。抹面砂浆在储存过程中,应存放在干燥通风处,避免受潮。关注我们,了解更多内容!
In addition, it shall be noted that no admixture is required for on-site construction of plastering mortar, and the water solid ratio and plastering time shall be strictly controlled. During transportation, pay attention to moisture-proof, rainproof and sun proof. The plastering mortar shall be stored in a dry and ventilated place to avoid moisture during storage. Follow us , learn more!