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The cell modules may contain two or four cell units, called double and quad modules respectively. A quad module is shown in Figure 4. The module consists of external walls on all sides and a roof slab cast monolithically. Openings for cell doors, embeds and amenities are set at the time of casting. The exterior walls exposed to the weather are insulated. Electrical ducts, plumbing and other mechanical ducts are embedded in the concrete and placed through the triangular chases shared between two adjacent cells. Bunks, toilets and other amenities are fixed to the cells with tamper-proof bolts. |
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