SeaMac
Senior Member
Hello fellow HEF members,
I've heard of although never seen a Sewer Structure where the bench and channel/s are precast into a monolithic base. Here we do it the old-fashioned way with bricks and mortar, same for the chimney, frame and cover atop the corbel/cone. I can certainly see the benefits of it being precast where the concern for invert alignment and elevation is aleviated by the invert boot. Another benefit of cast-in benches and channels is the prevalence of lined/coated structures where if Mason's have to build the B/C's it's an added step to apply the lining/coating on top of the masonry work. My question is, anyone here use these precast structures? Also, I know they precast grade rings to sit atop the corbel/cone but again we still do it the old-fashioned way we're required to have at minimum two (2) courses of brick to a maximum of five (5) to set the frame at final grade. Anyone use these too?
I've heard of although never seen a Sewer Structure where the bench and channel/s are precast into a monolithic base. Here we do it the old-fashioned way with bricks and mortar, same for the chimney, frame and cover atop the corbel/cone. I can certainly see the benefits of it being precast where the concern for invert alignment and elevation is aleviated by the invert boot. Another benefit of cast-in benches and channels is the prevalence of lined/coated structures where if Mason's have to build the B/C's it's an added step to apply the lining/coating on top of the masonry work. My question is, anyone here use these precast structures? Also, I know they precast grade rings to sit atop the corbel/cone but again we still do it the old-fashioned way we're required to have at minimum two (2) courses of brick to a maximum of five (5) to set the frame at final grade. Anyone use these too?