Radius work needs to be carefully set out. But before watching the video, Why are there Add's on this page? I need to generate revenue, allowing me to reinvest and improve my site.
Using a trammel or string line. A wall that has a radius of 2m or more can be laid in stretcher bond, but under 2m the curve becomes jaggered and therefore header bond is best suited. Note that in this job the headers are snapped meaning inner radius will have fewer headers than the outer radius. Notice that the BOE (brick on edge) coping is axed (cut using a template, please see video, 4 Centred Arch) this is to allow the joints to remain parallel and maintain good sized joints to both front and rear.