Here is the full list of all 18 Candy Blast achievements.
5 loose in a row
10 levels with no fails
Start the Journey
20 levels with no fails
30 levels witth no fails
10 lose in a row
Done with 100 levels
Done with 200 levels
Done with 300 levels
Done with 400 levels
Done with 500 levels
Done with 600 levels
Done with 700 levels
Done with 800 levels
Done with 900 levels
Done with 1000 levels
Done with 1100 levels
Done with 1200 levels