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薄層抹面砂漿的技術(shù)要求有哪些？

來源：http://m.wavc.cn 日期：2019-04-11 發(fā)布人：

　　薄層抹灰砂漿主要用于平整度高的墻體抹灰。基層平整度高，且結(jié)構(gòu)和建筑也允許或者要求使用薄層抹灰的話，那么就可采用薄層抹灰。薄層抹灰層的厚度一般在3~5mm，大不超過8mm。薄層抹灰厚度薄，對砂漿的要求就與普通抹灰砂漿（抹灰層每層厚度7~9m，總厚度20mm）有很大的區(qū)別。首先，薄層抹灰厚度僅3mm，它對保水性要求就非常高，要確保砂漿內(nèi)水分不被基層吸收或向大氣蒸發(fā)，一般要求保水性在98%以上；其次，薄層抹灰砂漿要求集料粒徑較小，一般不超過1mm，以保證膠凝材料包裹在集料表面；第三，薄層抹灰砂漿不僅包含水泥基等無機膠凝材料，還應包含有機膠凝材料，如各類樹脂、乳液等；后，薄層抹灰砂漿還應有良好的抗裂性，以保證砂漿不產(chǎn)生裂縫。
濟南抹面砂漿

　　Thin layer plastering mortar is mainly used for plastering walls with high smoothness. If the base level is high, and the structure and building permit or require the use of thin layer plastering, then thin layer plastering can be used. The thickness of thin plastering layer is generally 3-5 mm, the maximum is not more than 8 mm. Thin layer plastering thickness is thin, the requirements for mortar are very different from ordinary plastering mortar (plastering layer thickness 7-9 m, total thickness 20 mm). Firstly, the thickness of thin layer plastering is only 3mm, which requires very high water retention requirements. To ensure that the moisture in mortar is not absorbed by the base or evaporated into the atmosphere, the water retention is generally required to be above 98%. Secondly, thin layer plastering mortar requires smaller aggregate size, generally not more than 1mm, to ensure that the gelling material is wrapped on the aggregate surface. Thirdly, thin layer plastering mortar not only contains inorganic materials such as cement base. Cementing materials should also contain Organic cementitious materials, such as various resins, emulsions, etc. Finally, the thin layer plastering mortar should also have good crack resistance so as to ensure that the mortar does not produce cracks.

　　目前，我國薄層抹灰砂漿主要用于外墻外保溫的表面抗裂砂漿和蒸壓加氣混凝土砌塊的薄層抹灰。

　　At present, thin plastering mortar is mainly used for surface crack resistance mortar and thin plastering of autoclaved aerated concrete blocks for external wall insulation in China.

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