If a larger curve (radius) is part of your patio wall project, cutting some AB Dublin blocks in half will be required, which allows just about any radius to be built.
The easiest way to create a smooth curve, is to alternate between an AB York block and a half (1/2) AB Dublin block through the entire curve. Limitless curves can be created by combining the various patterns shown here. AB Wall caps will need to be cut to follow any custom radius as well.
By adding small gaps at a maximum 0.125 inch (3 mm), you can tighten the wall or feather it wider. With building bigger curves, you have a few options to choose from:
Option A - Standard Curves2 AB York block
1 AB York Block 1 half AB Dublin
1 AB York Block
1 full AB Dublin-cut
2 AB York Block 1 half AB Dublin