Disclosed herein is a method for stabilising a volume of soil (e.g. a volume of soil that defines a road base or a road sub-base). The method comprises applying a coating agent comprising one or more salts of fatty acids derived from coconut oil to the soil, whereby soil particles in the soil are coated with the coating agent, and then applying to the soil a setting agent comprising a metallic salt that is capable of reacting with the one or more salts of fatty acids derived from coconut oil, whereupon a set product is formed. The soil is subsequently compacted, whereby the coated soil particles are consolidated.

Disclosed herein is a method for stabilising a volume of soil (e.g. a volume of soil that defines a road base or a road sub-base). The method comprises applying a coating agent comprising one or more salts of fatty acids derived from coconut oil to the soil, whereby soil particles in the soil are coated with the coating agent, and then applying to the soil a setting agent comprising a metallic salt that is capable of reacting with the one or more salts of fatty acids derived from coconut oil, whereupon a set product is formed. The soil is subsequently compacted, whereby the coated soil particles are consolidated.

In a self-propelled construction machine (1), in particular road milling machine, comprising a machine frame (8), at least three travelling devices (12, 16), at least one working device, in particular a milling drum (6), for working the ground pavement (3), at least one hydraulic drive system (70) for driving at least two travelling devices (12, 16), wherein the hydraulic drive system (70) comprises at least one hydraulic pump (78), wherein the hydraulic drive system (70) comprises at least one hydraulic fixed displacement motor (74) for driving at least one driven travelling device, and one each hydraulic variable displacement motor (72) for driving the remaining driven travelling devices that are not driven by a fixed displacement motor (74), wherein a first gearbox (90) is arranged between the fixed displacement motor (74) and the associated travelling device, and wherein one each second gearbox (92) is arranged between the remaining driven travelling devices and the respective hydraulic variable displacement motors (72),
it is provided for the following features to be achieved: the transmission ratio of the first gearbox between the fixed displacement motor (74) and the associated travelling device is lower than the respective transmission ratios of the second gearboxes (92), which are each arranged between the respective hydraulic variable displacement motors (72) and the respective travelling device, and/or the displacement volume of the fixed displacement motor (74) is smaller than the maximum displacement volume of the variable displacement motors (72).

A soil processing machine, in particular a soil compactor, comprises a machine frame and a casing (26, 28) carried on the machine frame and/or at least partially providing it and bounding a unit receptacle space (24), wherein the casing (26, 28) has a cooling air inlet area (30) and a cooling air outlet area (32) for cooling air flowing through the unit receptacle space (24), wherein a plurality of units around which cooling air can flow through the unit receptacle space (24) from the cooling air inlet area (30) to the cooling air outlet area (32) are arranged in the unit receptacle space (24), wherein at least two of the units arranged in the unit receptacle space (24) have maximum permissible operating temperatures different from one another and at least one unit having higher maximum permissible operating temperature is arranged upstream in a cooling air flow direction from the cooling air inlet area (30) to the cooling air outlet area (32) with respect to at least one unit having lower maximum permissible operating temperature.

A self-propelled ground milling machine, in particular a road milling machine, a stabilizer or a recycler, comprising a machine frame borne by traveling devices, a ground milling device mounted on the machine frame having a milling drum box and a milling drum which can be rotated within the milling drum box about a rotation axis running transverse to a main working direction of the ground milling machine, and an operator platform from which the ground milling machine is operated by an operator, having an operator platform floor on which the operator can stand while operating the ground milling machine, having a main floor plate. What is now essential according to the invention is that, in addition to the main floor plate, a side floor plate is provided which can be pivoted about a vertical axis or can be adjusted along a horizontal adjustment axis, and by means of which the standing area of the operator platform can be varied.

A self-propelled construction machine, in particular a road milling machine, recycler or stabiliser, having a machine frame and a milling drum which is arranged in a milling drum housing having a sealing device which has a sealing element arranged in the working direction of the construction machine behind the milling drum for closing the milling drum housing, an adjustment device for adjusting the height position of the sealing element in relation to the milling drum, and a controller for controlling the adjustment device of the sealing element. The sealing device has a scraper element, which is pivotably arranged on the sealing element such that the scraper element rests on the milled material, so that the scraper element is pulled over the milled material with the advancing construction machine and is pivoted in relation to the milling drum on the basis of the height of the milled material. The height position of the at least one sealing element is adjusted on the basis of the pivot position of the scraper element such that the pivot position of the scraper element is within a predetermined pivoting range when the construction machine advances.

In a self-propelled construction machine (1), in particular recycling machine or stabilizing machine, for working a ground (20), comprising at least one machine frame, a working device (10) for working the ground, which is supported on the machine frame (2), wherein the working device is at least partially enclosed by a housing, wherein the housing comprises a plate each at the front and rear end as seen in the main direction of travel that closes off the mixing chamber of the housing towards the front and the rear, respectively, wherein the front plate is adjustable by means of at least one front adjustment device and the rear plate is adjustable by means of at least one rear adjustment device, wherein, in a first working operation, the rear plate as seen in the main direction of travel is supported on the ground in a floating position, it is provided that in a second working operation, the front plate as seen in the main direction of travel is supported on the ground in a floating position.

A milling machine can include a frame; an engine coupled to the frame; a cutting rotor coupled to the frame and driven by the engine, the cutting rotor configured to be lowered a selected distance into a surface; and a controller, the controller being configured to modulate a plunge velocity of the cutting rotor into the surface based on an engine load target or an engine speed.

A machine service set position control system is used on a machine that includes a frame, traction devices connected to the frame, a power source connected to the traction devices and configured to rotate the traction devices, a drum chamber connected to the frame, a milling drum rotatably supported within the drum chamber and configured to engage with a ground surface, and a rotor drive train connected to the milling drum and configured to rotate the milling drum to mill the ground surface, the rotor drive train including a gearbox. The service set position control system is programmed to determine a position of at least the rotor drive train and selectively operate a rotor drive train actuator connected to the rotor drive train based on the determined position to move the machine into a machine service set position allowing easy access for a technician to perform service.

In the method for operating a movable compaction device (10) during material compaction work the moisture content of the material to be compacted is monitored. The method comprises the steps of defining a compaction performance index for the material (100) to be compacted, said compaction performance index being an electromagnetic character correlating with the volumetric moisture content of the material, determining the compaction performance index value in a number of survey points of the material to be compacted during compaction work using electromagnetic measurement device and controlling the operation on the compaction device based on determined compaction performance index values. Determination of the compaction performance index includes sending at east one wideband electromagnetic pulse to the material to be compacted with a ground penetrating radar, receiving a reflected signal, measuring the power spectral density and peak to peak amplitude from the reflected signal and calculating the compaction performance index by using the measured density and amplitude.