Pulverization

rammed eart must be pulverized. this also applies to clay-like earth composed of hard lumps, to which a sandy fraction must be added. to improve this clay-like soil condition with sand, alternating the processing of the clay component with the sand in the pulverizer will result in greater quality. it is recommended to group the pulverizing, grating and mixing operations together. the mixture undergoes the following sequence of operations: transport, elevation and distribution within the formwork. the pulverizer must be a sturdy machine, able to withstand stone and sand-like soil. it must also be able to project the earth a certain distance, in order to ensure good aeration and proper premixing.

Mixing

This process is recommended when the soil requires homogenization, or when a stabilizer needs to be added. The most suitable piece of equipment for this is a concrete mixer. A motor cultivator is also known to yield good results.  

Transport

This is one of the major problems in rammed earth technology. Large quantities of earth are required in the construction process. The material must be transported horizontally from the borrowon the construction site, and must be transported vertically as well to the required level.Traditionally, workers who build with rammed earth use manual labour to carry the soil in receptacles from the borrw to the construction site. The material is then raised by ladder or scaffold to where it will be used.The same task can also be achieved in an efficient manner by means of hoists.