a tilling stabilization apparatus for tilling and stabilizing a roadbed or other base layer of soil includes a large manifold for receiving metered amounts of pressurized fly ash or other powdery filler binder and or sealer material and injecting it in the vicinity of a rotating tiller that is tilling the roadbed a water manifold passing through a housing surrounding the tiller produces a dense water mist inside the housing causing dust to settle and providing a cementitious mix of the fly ash with the tilled roadbase material reliable economical filling of roads and stabilization of a road base is achieved application_number US 34716089 A description referring to the drawings roadbed stabilization apparatus 1 includes a tractor 3 supporting a tiller stabilizer machine 7 tractor 3 is supported by its rear wheels 5 and front wheels 6 along a roadbed 9 which is to be prepared for deposition of pavement the tilling stabilizing machine 7 includes a rotary tiller 23 including a plurality of tines or blades as shown in fig2 driven by an hydraulic motor 15 fig1 hydraulic motor 15 is connected by a tube 17 to a hydraulic pump not shown in tractor 3 the tractor 3 and the portion of the tiller stabilizer machine 7 described thus far can be a bomag mph 100 recycler soil stabilizer available from bomag usa springfield ohio the device is capable of tilling a roadway layer up to about 12 inches.