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What problems should be paid attention to when sma

2022-07-22

The following points should be paid attention to when smashing bricks and paving again:

1. Humidity should be guaranteed to the greatest extent, but there should be no floating water

2. If the foundation surface is uneven, the proportion of sand should be appropriately increased

3. If the foundation surface is relatively flat, it is recommended to use commercially available firmly pasted cement and sand instead

4. The previous practice of mixing glue has been eliminated due to the use of 107 and 108 glue, which is rarely used at present

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