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Machine-made sand is a type of artificial sand that is often used in concrete preparation. Here is an example of preparing concrete using machine-made sand:

Project name: Concrete foundation construction for a high-rise residential building

Materials:

Cement: using 42.5 grade Portland cement
Sand: using machine-made sand
Aggregate: using 40mm crushed stone
Water: using municipal tap water
Concrete mix ratio: C30

Preparation process:

1.Mix cement, machine-made sand, crushed stone, and water according to the design mix ratio.
2.Transfer the mixed concrete to a concrete mixer truck and mix thoroughly.
3.Transport the mixed concrete to the foundation construction site.
4.Pour the concrete on the foundation construction site and compact using a vibrator.

Key points of preparation:

1.Choose machine-made sand with suitable fineness and good particle shape to ensure the strength and durability of the concrete.
2.Ensure the quality of the cement meets the national standards to ensure the strength and durability of the concrete.
3.Strictly control the amount of water used to ensure the slump and strength of the concrete.
4.Strictly follow the design requirements during the concrete preparation and construction process to avoid deviation.

Summary:
Preparing concrete using machine-made sand is a common method in concrete preparation, and its strength and durability can meet most building engineering requirements. During the actual operation, attention should be paid to the selection and quantity of materials, strictly mixing according to the design mix ratio, and paying attention to the environment and conditions of the construction site to ensure the quality and construction effect of the concrete.

 
                       
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