Hello there! As a construction materials expert with a keen eye for detail, I'm here to help you with your masonry needs. When it comes to laying bricks, the amount of sand and cement required can vary depending on several factors such as the type of bricks, the size of the bricks, the thickness of the mortar joints, and the specific standards or codes you're adhering to. However, I can certainly provide you with a general guideline based on the information you've given me.

Step 1: Understanding the Mixture Ratio
The mixture ratio for mortar is typically given by the cement manufacturer or can be determined by the mason based on experience. A common ratio used in many regions is 1 part cement to 4 or 5 parts sand. However, the reference you've provided suggests a specific ratio for SABS Class II applications, which is a standard for building in South Africa. According to this reference, for every 1000 bricks, you would need 3 bags of cement and 0.6 cubic meters of sand.

Step 2: Calculating the Amount Needed
Let's delve into the calculations based on the reference provided:

- Cement: If 1 bag of cement typically weighs 40-50 kg (depending on the brand and region), then 3 bags would weigh approximately 120-150 kg. This is a substantial amount, but it's crucial for the structural integrity of the brickwork.

- Sand: A cubic meter of sand weighs about 1500-1700 kg, depending on the density of the sand. So, 0.6 cubic meters would weigh approximately 900-1020 kg.

**Step 3: Considering the Mortar Joint Thickness**
The thickness of the mortar joint can significantly affect the amount of mortar you'll need. Thicker joints require more mortar. A standard mortar joint thickness is about 10mm, but it can vary.

**Step 4: Factoring in Waste and Variability**
It's always a good idea to add a bit extra to account for waste and variability in the bricklaying process. You might lose some mortar to spillage, and the actual amount needed can vary based on the specific conditions of your project.

Step 5: Final Considerations
Before you start, consider the following:
- The specific requirements of your local building codes.
- The type of cement you're using, as different cements have different strengths and properties.
- The environmental conditions, as these can affect the curing time and the amount of water needed in the mix.

Now, let's move on to translating the information into Chinese.

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MORTAR: For laying bricks and blocks in normal applications (SABS Class II) To lay 1000 bricks = 3 bags cement + 0.6 cu. m. sand.read more >>