Based on the provided reference, a specific instance of the ratio of cement and sand commonly used for plastering is 1 part cement to 5 parts sand.
Understanding the Plastering Mix Ratio
The ratio of cement and sand is crucial for achieving the desired strength, durability, and workability of plastering mortar. A ratio like Cement: Sand = 1:5 indicates the proportions of the two main components by volume.
- 1 Part Cement: This refers to one unit of volume of cement. This could be one bag, one bucket, or any consistent measuring container.
- 5 Parts Sand: This refers to five units of the same volume measure used for the cement.
Mixing these proportions creates the mortar used for applying plaster onto walls or surfaces.
Key Details from the Reference
The reference provides the following specific information regarding plastering:
- Ratio Example: Cement: Sand = 1:5
- Meaning of Ratio: 1 part of cement to 5 parts of sand in a mortar mix.
- Overall Thickness: The overall thickness of plastering should be 20mm minimum, applied in two coats.
This 1:5 ratio is a widely used mix for general plastering work, particularly for base coats on walls.
