Abstract

A radiation and impact-protected radioactive waste cask, comprising a radioactive waste storage container (10, 100) defining an inner space with a radiation-protected cylindrical or polygonal cavity, comprising: a stainless-steel outer wall (12, 112), a stainless-steel inner wall (14, 114), a layer of mild steel (16, 116) between the inner and outer walls, a stainless-steel bottom (18, 118), a lead lining (53, 153) covering the inner wall and bottom, separated from said cavity by a beaker-shaped stainless-steel enclosure (56, 156), a stainless- steel top (54, 154), comprising a lead layer (541, 154'), for closing said cavity, one or more inner radioactive waste vessels (24i, 242, 124) for radioactive waste (26, 126), quartz sand (22, 122) at least partially filling up a space of the cavity left after insertion of the inner radioactive waste vessels, and a stainless-steel lid (20, 120) closing the container.

IPC Classes  ?

• G21F 1/12 - Laminated shielding materials
• G21F 5/005 - Containers for solid radioactive wastes, e.g. for ultimate disposal

Abstract

A radiation and impact-protected radioactive waste cask, comprising a container for radioactive waste including an outer steel wall, an inner steel wall, a layer of lead located between the two steel walls, a steel base, a steel cover, a volume of quartz sand located inside the container, at least one internal vessel that is surrounded at least partially by the volume of quartz sand; and radioactive waste located inside the receptacle, wherein the radiation and impact-protected radioactive waste cask further comprises a removable outer transportation canister, wherein the removable outer transportation canister comprises a hollow cylindrical or polygonal body with a lower end and an upper end, configured for fittingly receiving therein the container for radioactive waste, wherein the lower end is closed by a fixed bottom and the upper is closed with a removable canister cover, wherein the hollow cylindrical or polygonal body, the fixed bottom and the removable canister cover are made of at least three layers, an outer layer made of armor grade steel, an inner layer made of high strength steel, and an intermediate layer between said outer and inner layers, said intermediate layer being made of one or more strati comprising ceramic material, wherein said ceramic material is selected from oxide ceramics, non-oxide ceramics and mixtures thereof.

IPC Classes  ?

• G21F 5/008 - Containers for fuel elements
• G21F 5/08 - Shock-absorbers, e.g. impact buffers for containers
• G21F 5/12 - Closures for containersSealing arrangements

Abstract

The invention consists of a container for radioactive waste comprising an outer steel wall, an inner steel wall, a layer of lead located between the two steel walls, a steel base, a steel cover, a volume of quartz sand located inside the container, at least one internal receptacle/cassette/box that is coated/surrounded/covered at least partially by the volume of quartz sand; and radioactive waste located inside the receptacle. The internal container may be made of steel and may contain low level radioactive waste. Alternatively, the receptacle(s) may be made of ceramic material and may contain high level radioactive waste. In one preferred embodiment, the container comprises an internal rack into which the internal receptacles are placed.

IPC Classes  ?

• G21F 5/005 - Containers for solid radioactive wastes, e.g. for ultimate disposal

Abstract

The invention consists of a container for radioactive waste comprising an outer steel wall, an inner steel wall, a layer of lead located between the two steel walls, a steel base, a steel cover, a volume of quartz sand located inside the container, at least one internal receptacle/cassette/box that is coated/surrounded/covered at least partially by the volume of quartz sand; and radioactive waste located inside the receptacle. The internal container may be made of steel and may contain low level radioactive waste. Alternatively, the receptacle(s) may be made of ceramic material and may contain high level radioactive waste. In one preferred embodiment, the container comprises an internal rack into which the internal receptacles are placed.

IPC Classes  ?

• G21F 5/005 - Containers for solid radioactive wastes, e.g. for ultimate disposal

Abstract

The subject of the present invention is a process for producing construction materials, comprising the following steps: • Mixing, in a sealed mixing tank, household waste, plastic waste and ground demolition or construction gravel with solvent-liquefied polystyrene and with a calcium aluminate-based hydraulic binder, • Extracting the mixture obtained from the sealed mixing tank, • Compacting/Pressing said mixture in an extruder/press at a pressure of between 150 and 300 bar, and also the materials obtained and the use thereof.

IPC Classes  ?

• C04B 28/06 - Aluminous cements
• C04B 18/04 - Waste materialsRefuse
• C04B 18/30 - Mixed wasteWaste of undefined composition, e.g. municipal waste