How should Thick Layer, Plastic Installations be executed?

Thick layer, plastic installations should be executed by ram packing the material in clumps using a pneumatic rammer. This method ensures that the refractory material is densely packed, which is critical for achieving the desired strength and thermal stability of the installation. The pneumatic rammer provides the necessary force to compress the material adequately, eliminating air pockets and ensuring uniform density, which is essential for effective performance under operational conditions.

Other methods, such as moving it into place freely, may not provide the necessary compaction and could lead to weak spots in the installation. Hammering the material with a heavy object could also cause uneven distribution and potentially damage the material. Layering like a cake might suggest a technique suitable for other types of installations but does not apply to thick-layer, plastic applications, where compaction is crucial for structural integrity and performance.