Abstract:
A process and machine for receiving and processing to a transportable and usable condition, water soaked waste dredge removed from watery bodies. The process includes the steps of separating oversize material from the watery bulk waste, grinding organic oversize material to pulp, adding the pulp to the watery bulk, adding stabilizers to the bulk, conveying the aggregate to a transporting vehicle and performing the mixing process within the vehicle. The process further includes transporting the mixture to a point of use, spreading the mixture, spreading a pozzolanic binder on the mixture and mixing the binder with the mixture in situ.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     Applicant claims priority of Provisional Application Serial No. 60/097,243 filed Aug. 20, 1998. 
    
    
     BACKGROUND 
     Bulk material removed from the bottom of bodies of water generally has water content exceeding 80 percent. The bulk material frequently carries with it gross or oversize organic material such as telephone poles, rotted pilings, abandoned and sunken vessels, metallic materials such as anchors, engine blocks, transmissions and nonmetallic material such as concrete blocks and portions of demolished structures. 
     At present the major disposal route for such dredged detritus is by truck to a nearby, or not so nearby, landfill. Such landfill disposal entails the considerable costs of transportation and tipping without the prospect of any economic return. However, there is a substantial and growing need for materials which can be employed for the reconstruction of abandoned mines and areas subject to erosion by wind or water. To effectively employ the dredge detritus for this purpose it must first be conditioned for transportation by forming a first mixture, then it must be conditioned for the final application by forming a second mixture. 
     OBJECTIVES 
     Therefore it is an object of the invention to provide an economical process for handling and treating dredge and other types of detritus and waste having a high water content and oversize organic materials, into material that meets transportation specifications and can be carried in transportation vehicles such as trucks or railway cars. 
     It is a further objective to provide such a process in which the oversize organic materials are pulped and added to the bulk of the watery material. 
     It is a further objective to provide a process which employs pozzolanic waste materials, such as fly ash and otherwise useless wastes such as bottoms, or ash from furnaces fired by coal or trash, which bottoms or ash materials otherwise would have to be disposed of in landfills, as additives for the purpose of conditioning the dredge detritus for transportation in a vehicle. 
     It is a further objective to provide a process in which the mixing of the ingredients is carried out in the transportation vehicle. 
     It is a further object to provide a machine which is adapted to mix the components within the transportation vehicle. 
     It is a further object to provide such a process where the ingredients are mixed within the transportation vehicle by a mixing machine whose entire mixing machine body fits and mixes within the vehicle while supported by wheels positioned outboard of the machine. 
     It is a further objective to provide a process in which the transported product is transformed into a second product by the addition of and mixing with a pozzolanic material; where this second product is suitable for application to a pit bench or shaft in a mine, or erosion reclaim process. 
     It is a further object to employ the same machine construction for in-place mixing the final ingredients at the mine bench as was employed for the in-car mixing prior to transportation to the site of utilization. 
     It is a further objective to improve the mixing machine by providing it also with rolling and compacting capability. 
     It is a further object to provide a process in which the dredge detritus loaded into a barge by the dredge and is simultaneously ground and mixed with a viscosity raising agent within the barge. 
     It is a further objective to provide such a process in which pozzolanic and conditioning agents are added to the ground and conditioned detritus and the mixture is further ground and mixed in a pugmill before being transported to and applied to an area to be reclaimed. 
     It is a further objective to provide a process in which oversized material is removed from the original barge carrier of the detritus by a raking process. 
     It is a further object to provide such a process in which the residue after raking is further prepared for final application by screening to remove yet unremoved oversized material, the undersized material being combined with a combination of pozzolanic materials and finally ground and mixed by processing through a pugmill. 
     Further objectives will become apparent as the nature and functioning of the process and the construction and application of the machine are disclosed in detail. 
     PRIOR ART 
     No patents or literature are known related to or describing a process for handling and treating dredge and other types of detritus and waste having a high water content and oversize organic materials, into a first material that meets transportation specifications and can be carried in trucks or railway cars and into a second material applicable to mine reconstruction. 
     High power grinding and mixing machines, resembling the novel mixing machine disclosed and employed in carrying out the objectives of the invention, are manufactured by the CMI Corporation of Oklahoma City, Okla. However, these machines all have wheels which are inboard of the cutting/mixing mandril and none have combined mixing and rolling/compacting capability. Grinders capable of being used in vessels such as barges are manufactured by Lang Tool Company of Beaverton, Mich. 
     Pugmills are manufactured by Pugmill Systems, Inc. Of Columbia, Tenn. 
     SUMMARY OF THE INVENTION 
     The invention provides several economical processes for handling and treating dredge and other types of detritus and waste having a high water content and oversize organic materials, into material that meets transportation specifications and can be carried in trucks or railway cars and applied to polluted and other areas to be reclaimed. 
     One process comprises the steps of: 
     1. Receiving detritus comprising about 80 percent of “undersize” material having a high water content with a predetermined maximum solids size and comprising 20 percent or less of oversize organic material having dimensions greater than the limit for undersize; 
     2. Separating the oversize from the undersize bulk; 
     3. Grinding the oversize to pulp having solids size no greater than the size of the solids in the undersize bulk; 
     4. Adding the pulp to the undersize bulk; 
     5. Adding binder to the bulk; 
     6. Conveying the bulk with the added pulp and binder to a carrier car having a top edge; 
     7. Positioning the carrier car under a wheeled mixing machine, the wheels of the mixing machine being positioned at substantially the level as the top edge of the carrier car, the mixing machine having a mixing mandril substantially the full width of the carrier car and having means for lowering the mandril to the bottom of the car and raising the mandril to clear the top edge of the car; 
     8. Operating the mandril to mix the bulk with the added ingredients while moving the mandril relative to the car length until the mandril has traversed substantially the entire length of the car; thereby preparing a first mixture having properties suitable for transportation; 
     9. Raising the mandril to clear the top edge of the car, thereby allowing the car, now bearing the mixed ingredients, to be moved and allowing another car to take its place under the mixing machine; 
     10. Conveying the mixture to the site of application and spreading it on the application site 
     11. Adding a pozzolanic material to the aggregate; 
     12. Mixing the first product with the pozzolanic material at the application site to form a second product, employing the same machine construction as employed for the in-car mixing. 
     13. Rolling and compacting the second product employing the dual function mixing machine. 
     A second process comprises the steps of: 
     1. Grinding the detritus within the original detritus conveyor, typically a barge, thereby reducing the size of the oversize material and simultaneously mixing the detritus with a viscosity improver as a transporation conditioner. 
     2. Transporting the ground and conditioned detritus to the place of use and there storing and, as needed, further conditioning the detritus with pozzolanic material and mixing and further grinding the mixture in a pugmill, the pugmill output being delivered to the site of application. 
     A third process includes the steps of: 
     1. Separating the grossly oversized material from the detritus while it is in the transportation barge by an industrial rake and sending the oversize to the landfill; 
     2. Transporting the raked detritus to a site near the site of application, further screening the detritus to remove oversize material remaining within the detritus, said oversize material being transported to the landfill; 
     3. Then conditioning the raked and screened detritus with one or more of a group of pozzolanic and/or viscosioty improving ingredients and; 
     4. Grinding and mixing the detritus and the ingredients within a pugmill; and 
     5. Either storing the output of the pugmill prior to application or applying the pugmill output directly to the point of use. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 shows one version of the waste process in which the final mixing before shipment is performed in a mixer external of a rail car and the mixture is transported to the site of use and mixed with a pozzolanic material. 
     FIG. 2 shows a similar process where the final mixing before shipment is performed within the rail car employed for shipment. 
     FIG. 3 shows a rail car with cut away sides, thereby displaying a raisable platen bearing rotary mixing drums. 
     FIG. 4 illustrates a more complete wheeled machine positioned on a parapet level with the top of the rail car and with the raisable platen lowered into the rail car. 
     FIGS. 5 and 6 show an end view of a mixing machine having outboard wheels resting on a parapet, where the mixing wheel/s are fixed with respect to the body of the machine, but where the entire body is lowered into the interior of the rail car. 
     FIGS. 7 and 8 illustrate side views of the machine. FIG. 7 shows the machine body raised to a level where the lowest part, the mixing drum is higher than the plane of the wheels. FIG. 8 shows the same machine with the entire machine body lowered, as if into the interior of a rail car. 
     FIG. 9 is a plan view of the machine positioned on a parapet and over a rail car, demonstrating that the width of the machine body is less than the interior width of a rail car, while the outboard wheels allow the machine to move along the parapet. 
     FIG. 10 illustrates the use of the mixing machine of FIG. 5 and 6 for mixing the ingredients at the site of application. 
     FIG. 11 is a side elevation of the mixing machine showing two mixing drums plus a rolling/compacting drum, each of which can be independently raised and lowered. 
     FIG. 12 shows a depiction of the process in which the first step provides that the detritus and any oversize material contained therein is ground directly within the transporting barge while the viscosity improver is simultaneously mixed into and with the detritus. 
     FIG. 13 illustrates the process in which the barge carrying the untreated detritus has the grossly oversised material raked out and sent to the landfill. Further steps include mixing conditioning agents and a final grinding and mixing in a pugmill before application to a recovery site. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring now to FIG. 1, there is shown barge  20  into which has been loaded detritus dredged from canals, rivers or lake beds. Such detritus contains “undersize” comprising silt, sand, stones and organic matter having maximum overall dimensions up to about eight inches, and “oversize” comprising all kinds of larger or oversize waste materials ranging from telegraph poles to rocks and abandoned automobiles. It is an objective of the treatment process to convert the dredge detritus to a first product which can be shipped in rail cars by processing the organic based oversize into a form is added to the undersize along with an additive or conditioner and mixing the three ingredients. The first product is transported to the site of use and there converted to a second product which is employed as material for the reconstruction of open pit mines and other environments. 
     To effectively employ the dredge detritus for this purpose it must first be conditioned for transportation, then it must be conditioned for the final application. 
     To achieve these objectives, it is necessary to separate the undersize material from the oversize material. Depending on the ultimate application for the processed material, the particle size range for undersize is from one inch to eight inches. Undersize material may include smaller metallic pieces, broken pieces of concrete, rocks plus the silt, sand and organic materials ordinarily found in silted-in flow streams. 
     To separate undersize material from oversize, the dredge detritus is conveyed from barge  20  by a crane  30  or other applicable means to a strong strainer machine  32 , commonly called a grizzly. The grizzly  32  may have strainer bars within, whose distance of separation is adjustable, whereby the quality or maximum size of the pieces which traverse the grizzly can be controlled. The materials which pass through the strainer bars of the grizzly  32 , the undersize, exit via flow path  34 . 
     Oversize materials that do not succeed in traversing the grizzly  32  are rejected via path  40  to a diverter  42 . The diverter  42  simply acts as a three-way valve. It diverts all the oversize material to a landfill via path  44  where the composition of the undersize emitted by grizzly  32  satisfies the mechanical requirements for its intended purpose and no augmentation is either required or tolerable. In the alternative, diverter  42  sends all the oversize via conduit  46  to a powerful grinder  48  which reduces the oversize to a size that will traverse grizzly  32 . The grinder may include means for discriminating organic output from other output and thereby send metals to a metals recycle via path  52  and boulders and concrete to a landfill or crusher via path  54 . 
     When the oversize organic material is conveyed from the diverter  42  to grinder  48  via path  46 , grinder  48  reduces the oversize organic material to a particle size which would have successfully traversed grizzly  32 . 
     In a preferred version of the invention the output of oversize grinder  48  is conveyed by path  50  to and joins with the output stream  34  of grizzly  32 . 
     Grinder  48  requires a large amount of power. The smaller the particle size the grinder is called on to produce, the greater the power consumption, or in the alternative, the smaller the throughput. Typically a crusher/grinder will use three times as much power to produce a 1.5 inch average output size as a 3.0 inch average output size. This difference in power consumption may be represented also as a throughput ratio where a given crusher/grinder with fixed power input will have three times the throughput with an average 3-inch output size as with a 1.5 inch average output size. Further, a grinder with a specific setting will produce a range of sizes. Therefore, a crusher/grinder setting which will produce an output of which 95% will pass a given grizzly setting will have a much lower throughput than the same grinder so adjusted to produce an output of which only 50 percent will pass the same grizzly setting. 
     In an alternate power conserving mode of the invention, the grinder  48  is adjusted to produce a range of particle sizes, many of which are larger than would have passed the strainer bars of grizzly  32 . In order to separate the oversize grinder output from the undersize, the output of grinder  48  is routed via path  51  back to grizzly  32 . The oversize grinder output material rejected by grizzly  32  is recycled via paths  40  and  46  back to grinder  48  for regrinding along with the fresh oversize initially rejected by grizzly  32 . 
     The ground-up oversize from grinder  48 , having been added to the undersize emitted by grizzly  32  to form an aggregate, is conveyed further by conduit  36 . 
     An additive is conveyed to conduit  36  from container  56  via conduit  58 . The additive  56  may be a waste material such as ash from a coal or trash fired plant, or purchased material such as or lime cement or other pozzolanic material. However, the additive need not exhibit pozzolanic properties. The purpose of the additive is to increase the viscosity of the first product and to retain excess water within the product and minimize leakage from the transportation vehicle. Typically, depending on the fraction of water in the aggregate, 10 to 20 percent of additive will be required. 
     The undersize from grizzly  32 , the pulp and ground oversize material from grinder  48  and the additive  56  are then conveyed via conduit  37  to a hopper  38  within which is positioned one or more mixing beaters  39 . While the mixing beaters are depicted as drums having protruding agitators, any arrangement that provides a powerful mixing effect on heavy, wet, particle laden disparate material will function satisfactorily. The material having been thoroughly mixed within hopper  38 , thereby forming mixture  60 , the first product, is conveyed to railway car  62  for transportation to a location where it will be employed as a grading restorative for reclaiming abandoned mines or for any other purpose where low cost fill is required. In one such application the first product comprising the mixed material is off-loaded from railway car  62  to trucks  92  and carried thereby to the bench  104  of the pit mine having adjacent bench  102 . A pozzolanic material  94  is conveyed to and spread in contact with the first product thereby forming an aggregate  100 . The aggregate  100  is further mixed at the place of application as described below. 
     FIG. 2 displays a similar process to that shown in FIG. 1 except that mixing hopper  38  has been omitted. In FIG. 2 the agglomeration of materials  37  is conveyed unmixed directly to railway car  62 . One or more mixing drums  39  (A, B, C) are positioned within car  62 . The mixing drums or elements  39  are then operated to mix, within car  62 , the agglomeration  37  to form the first product. Either the mixing drum/s  39  may be moved from one end of car  62  interior to the other end or car  62  may itself be moved, keeping the mixing elements  39  stationary, to ensure that the mixing elements  39  are able to engage and mix the materials residing over the length of the car  62 . The mixed product within car  62  then follows the same process as described in connection with product  60  in FIG. 1, 
     Addressing FIG. 3, there is displayed car  62  with mixing element/s  39  mounted on a platen pair  64 . Naturally two platens are required, one positioned at each end of the shaft mounted mixing elements  39 . Platens  64  can be raised and lowered,  66 , thereby allowing the mixing elements  39  to reach and mix every portion of the agglomeration within a given portion of the length of car  62 . The platens  64 , if longitudinally stationary, can reach every portion along the length of car  62  simply by causing the car  62  to move as required with respect to the platens and the mixing elements they bear. Further, since the platens  64 , bearing mixing elements  39 , can be raised as well as lowered, when the mixing function within car  62  has been completed, the platen  64  and its mixing elements can be raised to clear the top of the body of car  62 , thereby allowing the car to be moved along the tracks, whereby an adjacent car filled with, as yet, unmixed material can be positioned under the mixing elements and subjected to the mixing action of the mixing elements  39 . 
     In FIG. 4 there is shown railway car  62  positioned within platforms  76 . A machine  72 , having four wheels  74 , is positioned with its wheels  74  positioned on and supported by platforms  76 . Within machine  72  are mechanisms which support platens  64 . Mixing elements  39  are rotatably attached to the platens. Means for rotating the mixing elements  39 , and for raising and lowering the platens  64  which bear them, are positioned within machine  72 . The operator of machine  72  positions the machine  72  so that platens  64  with attached mixing elements  39  can be lowered into the interior of car  62 . Thereafter the operator can move the machine on wheels  74  along the length of car  62 , thereby addressing and mixing substantially every portion of the contents of car  62 . When the mixing process has been completed, the operator raises platens  64  and either moves his machine  72  on wheels  74  along platforms  76  to position his mixing elements over another adjacent car, or the train operator performs the equivalent function by causing the rail car to move with respect to the machine  72 , thereby allowing every car  62  within the train to have its contents mixed. 
     FIGS. 5,  6 ,  7 ,  8  and  9  are all directed to the design, the structure and the operation of machine  80  having machine body  82 . 
     FIG. 5, a section A—A of FIG. 9, shows a broken away portion of rail car  62  positioned within and between raised platforms  76 . Typically, the levels of platforms  76  are the same and at substantially the same level as the top edge of car  62 . Machine  80  comprising wheels  74  and machine body  82  bearing mixing drum  39  is positioned on platforms  76 . Also machine body  82  is cantilever supported from wheels  74  by shafts  73 . As shown in FIG. 9, rail car  62  is positioned with its interior substantially underneath the machine part or body  82  of machine  80 . The width of the machine part  82  of machine  80  is less than the interior width or opening of rail car  62 . Machine part  82  has a rotatable mixing drum  39  mounted so that a portion of the mixing drum  39  extends down, beneath the bottom of machine part  82 . In that position it can effect a mixing action on material with which it is in contact. Other versions of the machine have more than one mixing drum. Machine part  82  is supported from wheels  74  by extended shafts  73 . 
     FIG. 6, (section A—A of FIG. 8) is similar to FIG. 5 except the entire end of rail car  62  has been cut away to show more clearly the positioning of the machine  82  when it is lowered into the rail car for the purpose of performing its mixing function on the car contents. In FIG. 6 machine  82  has been lowered bodily into the interior of rail car  62 , thereby exposing the contents of the rail car to the mixing action of mixing drum  39 . While mixing drum  39  is shown having a width less than machine body  82 , it is most effective when the drum  39  is as wide as machine body  82 . The machine  82  can be raised and lowered as indicated by arrow  83  through the action of the hydraulic support arms  84 . By reference to FIGS. 5,  6  and  9  it can be seen that extended shafts  73  engage hydraulic arms  84 . 
     By reference to FIGS. 7 and 8 it can be seen that the hydraulic arms  84  both support machine part  82  and, through actions by an operator, can be caused to raise and lower machine part  82 . Machine part  82  has a seat and operating controls for an operator. The operator can raise and lower the machine, control the selection and speed of the mixing drums and cause the wheels  74  to rotate, thereby causing the machine  82  and supporting appurtenances to move from one end of a car to the other and, with the machine  82  raised, from one car to another. In its raised position the lowest portion of mixing drum/s  39  is above the level of platforms  76  and above the top of the sides of car  62 . In its lowered position the level of the mixing drum/s can be adjusted to conform to the floor of the rail car. 
     In its simpler manifestation machine  82  has only a single mixing drum  39 . In a more complex construction at least two mixing drums  39 A and  39 C are provided. The operator can manually control the drum speed and direction of rotation. 
     Referring again to FIG. 8, where engine power is limited and sufficient to drive only a single mixing drum, the transmission is provided with an interlock which causes only the mixing drum to rotate which is at the leading edge of the linear motion of the machine. That is, when the operator causes the machine to move to the left, drum  39 A is caused to rotate and drums  39 B and  39 C left idle. When the machine is caused to move to the right, then drums  39 A and  39 B are left unpowered and only mixing drum  39 C is caused to rotate. This improvement allows the mixing to be effectuated close to the interior ends of the car, even when there is limited power to drive two or more mixing drums. 
     FIG. 8 also illustrates levers  43 A and  43 C, each located at the end of the machine body adjacent the mixing drum having the same suffix letter. These levers provide the drum controlling function when the machine/body  82  is stationary and the car  62  is caused to move relative to the machine. Then when car  62  moves to the left, lever  43 C is depressed, causing only mixing drum  39 C to rotate. Should the car  62  move to the right, then lever  43 C is released stopping mixing drum  39 C, but lever  43 A is depressed, thereby causing operation of mixing drum  39 A. 
     In FIG. 9 there is shown a plan view of the platforms  76 , the rail car  62  with rails  61 , the machine body  82  supported by hydraulic arms  84  and, in turn, through cantilever shafts  73 , by wheels  74  resting upon the platform  76 , machine  82  having three mixing drums  39 A,  39 B and  39 C positioned underneath. This method and the machine therefor, prepares material for shipment. 
     FIG. 10 displays the mixing machine  80  of FIGS. 5 and 6 located at a pit bench  104  of a pit mine reclamation site. 
     Machine  80  is positioned with its wheels  74  astride the layers of aggregate  100 ; the components of which are the first product and the pozzolanic material from source  94  (FIG.  1 ). The mixing machine  80  is caused to traverse the aggregate causing the aggregate components to be mixed, thereby forming a second product. The second product is compacted by rollers or compacting machine. 
     In an alternate construction of machine  82  shown in FIG. 11 there is shown two mixing drums  39 A and  39 C positioned at opposite ends of machine body  82  and a roller or compacting drum  41  positioned between the two mixing drums. The machine is equipped with means for raising the roller drum  41  during a mixing operation in one mode and raising the mixing drums and lowering the roller drum  41  when compacting is required. 
     In FIG. 12 there is shown barge  30  floating on a body of water  24 . Within the barge  30  is a body of detritus  22  which has been dredged from the body of water or from another place. Contained within detritus  22  are solids having a range of sizes, including some material having dimensions greater than are suitable for a specific application. In order to best prepare the detritus for use as reconstruction material or other purposes, a powered rotating grinding drum  110 , mounted on extendable, hydraulicly actuated arms  112  is employed to traverse the interior of barge  30  thereby grinding and reducing the size of oversize materials. The arms  112  are, in turn, supported, energized and controlled by a swiveling excavator type machine, typically moveable on endless tracks which are positioned on dock or curb  108 . 
     In the event the arms  112  are not sufficiently extensible or do not have sufficient range of motion to provide access to all parts of barge  30  and its contents  22  by grinding wheel  110 , the barge is moved back and forth along path  36  to ensure such access. 
     Prior to and during the grinding process additive  56  is conveyed from its container to detritus  22  via conduit  58 . The purpose of the additive is to increase the viscosity of the first product and to retain excess water within the product and minimize leakage from the transportation vehicle. Typically, depending on the fraction of water in the aggregate, 10 to 20 percent of additive will be required. The action of grinding drum  110  serves also as a mixer, thereby distributing and mixing additive  56  throughout the body of detritus  22 . 
     The mixing and grinding process having been completed, barge  30 , with its ground and stabilized contents  26 , is moved via path  114 , to a site adjacent an unloading mechanism. Displayed in FIG. 12 is rotatable, hydraulically-actuated excavator  116 , having buckets  118 . In position “A” the excavator is turned to allow buckets  118  to access the contents of barge  30 . When the buckets are filled, excavator  118  is rotated to position “B” where the contents of buckets  118  are transferred to truck  120 . Trucks  120 , filled with treated dredge detritus  26 , transposrt the material via path  122  to a site where they are unloaded, typically by tilting the truck body at  122 A, into detritus reservoir  124 . Other mechanisms for moving the detrutus from the barge to trucks or railway cars may be employed. 
     When site reconstruction material is required, a transmporting mechanism  126 , otherwise substantially identical to bucket-equipped excavator  116 , is employed to move the stored detritus  26  to hopper  128 . From hopper  128  the detritus is fed via conduit  130  into pugmill grinder-mixer  132 . Enroute to pugmill  132 , pozzolanic material  94  is fed, as required, via conduit  97  to conduit  130 . The detritus  26  and the pozzolanic material  94  are thoroughly mixed during the grinding process and emerge via conduit  134 , suitable for placement as product  100  on bench  102  or  104 . 
     A pugmill typically is constructed as a trough, or a cylinder designed to withstand relatively high pressures within which a single shaft or a pair of parallel shafts, carrying a series of short stout paddles, revolve. The shafts are frequently driven by separate motors. The paddles are angled to approximate propeller form and may be sharpened to provide cutting as well as mixing action. The angled paddles act to transport the mixture gradually from the pugmill inlet to its outlet cutting and kneading the material in transit. The axis of the mill may be horizontal, pitched or vertical. 
     FIG. 13 displays the path of detritus from barge to bench via a different process. In FIG. 13 the raw detritus  22  is raked by coarse rake  138  positioned at the end of the moveable arms of an hydraulically actuated excavator or the like. Coarse or oversized material separated from the detritus  22  by the rake are transferred to truck  12  as the excavator rotates from position “A” to position “B”. Truck  120  carries the oversize material removed by rake  138  to a landfill  44  or another point of waste disposal or utilization. 
     The barge, having had the coarse portion of its contents removed by the raking process, move along path  114  to a position near the place where the detritus will be employed for its ultimate purpose. At that position, the detritus is unloaded directly into grizzly  118  which further separates oversize material from undersize. While clam-bucket excavator  126  is illustrated for this purpose, other convenient means for performing the unloading process may be employed. 
     The oversized material separated by the grizzly is delivered to a landfill  44 . The remaining undersize material enters hopper  128  via path  34 . Hopper  128  provides a flywheel-like flow reservior from which pugmill  132  is supplied with material via conduit  130 . 
     Separate reservoirs for different additives  94 A,  94 B and  94 C are provided, positioned and arranged to feed the stored additives as required into the flow stream from hopper  128  to pugmill  132 . At least one of the additives has pozzolanic properties. The other additives may function both to change product viscosity and to act symbiotically with other additives to reduce the amount required to secure the desired properties. 
     The detritus, now a final desired product, transferred via path  134  to temporary storage  140 . Usual means of transfer  134  are applied to transfer the stored product  140  to the application site  104  as product  100 . 
     From the foregoing description it can be seen that the present invention comprises advanced systems for processing dredge detritus and an improved machine for mixing dredge detritus and additives within the same rail car to be employed for shipping the processed detritus to its ultimate destination. It will be appreciated by those skilled in the related arts that changes could be made to the manifestations of the invention described in the foregoing description without departing from the broad inventive concepts embodied therein. I intend, therefore, that the protection provided by this patent is not to be limited to the particular manifestations or embodiments of the inventions disclosed but to cover all modifications and equivalents thereof and equivalents of specific elements which are within the scope and spirit of the inventions as defined by the appended claims as interpreted by the above disclosure.