1. First, stack the blue bricks and red bricks separately, clean up the wall construction area, and ensure smooth foundation.

2, laying a layer of cement mortar on the ground, as a foundation.

3, daub a layer of mortar on the base, with a shovel or mortar knife mortar evenly daub on the base, the thickness is about 2-3 cm.

4. After the blue bricks are soaked, start from one side and lay them on the mortar in turn. Use a spirit level and a ruler to ensure that the blue bricks are horizontal and vertical.

5. Leave a certain gap above the blue bricks, and then spread red bricks in turn in the gap. Ensure that the red brick is horizontal and vertical with a spirit level and a ruler.

6. Fill the mortar into the brick joints, evenly fill the mortar into the brick joints with a mortar knife, and scrape off the excess mortar with a scraper.

7. After the mortar is dry, clean the mortar residue on the wall with a brush, and trim the wall with a trowel.