Method of forming lined pipe

A method of making lined concrete pipe comprising the steps of:

• providing a generally tubular flexible lining means,
• placing said lining means around movable and expandable carrying means,
• expanding said carrying means into frictional engagement with said lining means to form a liner/carrier assembly,
• making a form/liner/carrier assembly by surrounding said liner/carrier assembly with a form for casting concrete,
• placing carrying means of said liner shaping means in contact with interior portions of said carrying means of said form/liner/carrier assembly thereby causing said liner/carrier assembly to assume a predetermined shape,
• placing concrete within said form around said liner/carrier assembly while said liner shaping means is holding said liner/carrier assembly to said predetermined shape, and then
• removing said lined concrete pipe from said liner shaping means, said form, and said carrying means.

A method of making lined pipe comprising the steps of:

• placing a liner in contact with a liner carrier,
• tensioning said liner around said liner carrier by circumferential expansion of said liner carrier,
• placing said liner and said carrier on a pallet and surrounding said liner and said carrier with concrete reinforcing means,
• bringing a form and said reinforcing means into a position relative to each other where said form surrounds said reinforcing means, said liner, and said liner carrier,
• placing shaping means within said liner carrier,
• expanding said shaping means to thereby cause said liner carrier and said liner to assume a predetermined shape,
• filling said form with settable material to surround said liner, and
• allowing said settable material to cure thereby forming said lined pipe after removal of said shaping means, said form, and said liner carrier from said settable material.