STEP BY STEP CONSTRUCTING A RIGID CHANNEL
This sequence shows the stages of constructing a rigid concrete blockwork and butyl-lined channel in a private garden, for a house by the architect John Outram.
A cast-in-place concrete foundation is laid and a precast concrete blockwork wall is part built. Note the change of level.
The channel walls are built of precast concrete blockwork.
A precast concrete road channel is laid out on the walls prior ...