Plastering dry mixed mortar refers to the mortar applied to the surface of substrate, which has protective base course and aesthetic effect. Compared with masonry mortar, plastering dry mixed mortar has the following characteristics:

①抹面層不承受荷載；

① The plastering layer shall not bear the load;

②表面層和基層應具有適合的粘合強度，以便它們不會在施工或長期自重和環境下脫落，沒有破碎；

② The surface course and base course shall have suitable bonding strength so that they will not fall off and break under construction or long-term self weight and environment;

③抹面層多為薄層，并分層涂抹，面層要求平整、光潔、細致、美觀；

③ The plastering layer is mostly a thin layer, which shall be applied in layers. The surface layer shall be flat, smooth, meticulous and beautiful;

④多用于干燥環境，大面積暴露在空氣中。

④ It is mostly used in dry environment and exposed to air in a large area.

抹面干混砂漿的分類、性能及應用

Classification, performance and application of plastering dry mixed mortar

根據其功能不同，抹面干混砂漿一般可分為普通抹面砂漿和其他用途砂漿（具有防水、耐酸、絕熱、吸聲及裝飾等用途的砂漿）。

According to its different functions, plastering dry mixed mortar can generally be divided into ordinary plastering mortar and mortar for other purposes (mortar with waterproof, acid resistant, heat insulation, sound absorption, decoration and other purposes).

常用的普通抹面砂漿有水泥砂漿、石灰砂漿、水泥石灰混合砂漿、麻刀石灰砂漿（簡稱麻刀灰）、紙筋石灰砂漿（紙筋灰）等。

Common plastering mortar includes cement mortar, lime mortar, cement lime mixed mortar, machete lime mortar (abbreviated as machete lime), paper reinforced lime mortar (paper reinforced lime), etc.

抹面干混砂漿的應用結實地粘合在基面上，因此要求抹面干混砂漿具有良好的可加工性和高粘合性。抹面干混砂漿通常分為兩層或三層進行施工。底砂漿的作用是使砂漿和基層結實粘合，并應具有良好的保水性。中間層主要用于調平，有時可以省略。表面層主要用于獲得光滑表面能力。

The application of plastering dry mixed mortar is firmly bonded to the base surface, so the plastering dry mixed mortar is required to have good processability and high adhesion. Plastering dry mixed mortar is usually divided into two or three layers for construction. The function of bottom mortar is to make the mortar firmly bonded with the base course, and shall have good water retention. The middle layer is mainly used for leveling and can be omitted sometimes. The surface layer is mainly used to obtain the ability of smooth surface.

每層表面的能力和要求是不同的，每層使用的砂漿是不同的。同時，基材和工程部件的特性不同，抹面干混砂漿的工藝要求也不同，這也是選擇砂漿類型的主要依據。

The capacity and requirements of each layer of surface are different, and the mortar used in each layer is different. At the same time, due to the different characteristics of base materials and engineering components, the process requirements of plastering dry mixed mortar are also different, which is also the main basis for selecting mortar type.

抹面干混砂漿宜用于潮濕或強度要求較高的部位；混合砂漿多用于室內底層或中層或面層抹灰；石灰砂漿、麻刀灰、紙筋灰多用于室內中層或面層抹灰。對混凝土基面多用水泥石灰混合砂漿。對于木板條基底及面層，多用纖維材料增加其抗拉強度。

Plastering dry mixed mortar should be used for wet or high strength parts; Mixed mortar is mostly used for plastering of indoor bottom layer or middle layer or surface layer; Lime mortar, hemp knife ash and paper reinforcement ash are mostly used for indoor middle or surface plastering. Cement lime mixed mortar shall be used for concrete base surface. For the base and surface of the wooden strip, fiber materials are used to increase its tensile strength.

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