Abstract: A process in which material comprising an aqueous liquid with dispersed particulate solids is pumped as a fluid then allowed to stand and rigidify and the rigidification is improved whilst retaining the pumpability of the material by combining polymeric particles with the material during or prior to pumping the material, wherein the polymeric particles comprise water soluble polymer which has an intrinsic viscosity of at least 3 dl/g. The process of the invention more effectively minimises the area taken up by a stack of the material of given volume whilst maintaining the pumpability of the material. This invention is particularly suited to material that comprises red mud from the Bayer alumina process.

Abstract: An integral truck bed liner and mat assembly for installing into a bed region of a pickup truck for protecting the painted surfaces of the bed region from damage while at the same time providing a non-slip surface area for stored cargo items. The integral truck bed liner comprises a base liner, a pair of opposed upstanding liner walls which extend upward perpendicular to the base liner, a header liner having opposite ends, the header liner affixed at each end to one of the upstanding liner walls and also extending upward from the base liner. A base mat which has a serrated top surface is secured to the base liner, the serrated top surface providing traction so that when cargo items are placed upon it when the device is installed into the bed region of the truck, the cargo items will not shift or slide while the vehicle is underway, but rather will remain safely stationary.