抹面砂漿一平米大致需要的水泥是20斤，沙子是60斤，具體還需要看抹面砂漿層的厚度和強度。如抹面砂漿層為20mm，水泥砂漿中的水泥與沙子比例是1比3的話，那么需要的沙子量=體積(1m×1m×0.02m)×砂漿密度1500=30公斤=60斤。而需要的水泥量=1/3×沙子量60=20斤。

　　The approximate amount of cement and sand required for one square meter of plastering mortar is 20 pounds and 60 pounds, respectively, depending on the thickness and strength of the plastering mortar layer. If the plastering mortar layer is 20mm and the cement to sand ratio in the cement mortar is 1:3, then the required amount of sand=volume (1m x 1m x 0.02m) x mortar density 1500=30 kilograms=60 pounds. And the required amount of cement is 1/3 x the amount of sand is 60=20 pounds.

　　抹面砂漿的注意事項有哪些

　　What are the precautions for plastering mortar

　　1、抹面砂漿前對基層建議處理千凈，光滑表面應做毛化處理，澆水濕潤。抹面砂漿時應分層進行，每層抹面砂漿不應過厚，并嚴格控制間隔時間，抹完后及時澆水養護，以防空鼓、開裂。

　　1. Before applying the mortar, the base layer must be thoroughly cleaned, and the smooth surface should be roughened and moistened with water. When plastering mortar, it should be done in layers, and each layer of plastering mortar should not be too thick, and the interval time should be strictly controlled. After plastering, it should be watered and cured in a timely manner to prevent air bulging and cracking.

　　2、安裝窗框時標高應統一，尺寸應準確，框四周應留有抹面砂漿量，以防抹面砂漿吃口。

　　2. When installing the window frame, the elevation should be uniform, the size should be accurate, and there should be enough mortar around the frame to prevent the mortar from eating.

　　3、抹面砂漿時避免將接搓放在大面中間處，一般應留在分格縫或不明顯處，防止產生接搓不平。

　　3. When applying mortar, avoid placing the joint in the middle of the large surface. Generally, it should be left at the dividing joint or an inconspicuous place to prevent uneven joint.

　　4、抹面砂漿前混凝土表面鑿毛灑水濕潤后涂刷1:1水泥砂漿，陶粒砌塊墻面濕潤后，邊刷界面劑邊抹面砂漿。

　　4. Before plastering the mortar, chisel the concrete surface and sprinkle water to moisten it, then apply 1:1 cement mortar. After moistening the ceramic block wall, brush the interface agent while plastering the mortar.

　　5、若墻面不做涂飾時，砂漿應用同品種、同批號的水泥，罩面壓光應避免在同一處過多抹壓，以防造成表面顏色深淺不一。

　　5. If the wall is not painted, the mortar should be made of cement of the same variety and batch number. The surface should be smoothed to avoid excessive pressure on the same area to prevent uneven surface color.

　　6、淋制灰膏或泡制磨細生石灰粉時，熟化時間建議達到規定天數，防止因灰膏中存有未熟化的顆粒，造成抹面砂漿層爆裂，出現開花、麻點。

　　6. When pouring mortar or soaking finely ground quicklime powder, the curing time must reach the specified number of days to prevent the mortar layer from bursting, blooming, and pitting due to the presence of immature particles in the mortar.

　　7、現澆混凝土預板抹面砂漿基層建議進行毛化處理，抹面砂漿厚度不得過厚，防止因粘結不牢，開裂脫落，造成傷人的質非常事故。必要時，施工前應經監理、建設單位確認，采取相應的技術措施，選用先進的模板及支撐體系，使項板結構表面達到不抹面砂漿即可做涂飾施工的效果。

　　7. The base layer of the cast-in-place concrete precast slab plastering mortar must be roughened, and the thickness of the plastering mortar should not be too thick to prevent accidents such as injury caused by weak bonding, cracking and detachment. When necessary, it should be confirmed by the supervisor and the construction unit before construction, and corresponding technical measures should be taken. Advanced templates and support systems should be selected to achieve the effect of coating the surface of the slab structure without plastering mortar.

　　8、抹面砂漿前墻面做灰餅時，建議做到掛線并注意開間軸線，嚴格控制墻板厚度開間軸線均勻，灰餅建議垂直，平整，通順一致，灰餅間距不宜過大。

　　8. When making mortar cakes on the wall before plastering, it is necessary to hang lines and pay attention to the spacing axis. The thickness of the wall panel should be strictly controlled, and the spacing axis should be uniform. The mortar cakes must be vertical, flat, smooth, and consistent, and the spacing between the mortar cakes should not be too large.