A spacer pillar (10) for heat-insulating block comprises at least one first sheet (11) substantially planar comprising a first rectilinear notch over a portion of its length and at least one second sheet (14) substantially planar, of length substantially identical to said au at least a first sheet (11), comprising a second rectilinear notch over a portion of its length, said at least one first sheet (11) and said at least one second sheet (14) being assembled substantially perpendicularly, said at least one first notch receiving the second sheet and said at least one second notch receiving the first sheet. Method of manufacturing such a spacer pillar. Application to a heat-insulating block comprising such a spacer pillar, to a storage tank comprising such a heat-insulating block and to a ship comprising this tank.
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