The invention relates to a method which enables sleepers to be produced for the railway track superstructure, which have optimised performance characteristics, in a cost-effective and reliable manner. The method according to the invention provides the following production steps for this purpose: a) providing a mixture 10-60% mass of which consists of a granulate of a plastic, which is deformable by applying heat, and the remainder of which consists of a sand having a bulk density of 1.4-2.0 g/cm.sup.3; b) heating the mixture to a temperature of 150-200 C.; c) pouring the mixture into a press mould reproducing the sleeper; d) pressing the mixture in the mould at a pressing pressure measured in the mixture of 1-5 MPa over a pressing period of up to 60 minutes; and e) removing the sleeper from the mould.

The invention relates to a method which enables sleepers to be produced for the railway track superstructure, which have optimised performance characteristics, in a cost-effective and reliable manner. The method according to the invention provides the following production steps for this purpose: a) providing a mixture 10-60% mass of which consists of a granulate of a plastic, which is deformable by applying heat, and the remainder of which consists of a sand having a bulk density of 1.4-2.0 g/cm.sup.3; b) heating the mixture to a temperature of 150-200 C.; c) pouring the mixture into a press mould reproducing the sleeper; d) pressing the mixture in the mould at a pressing pressure measured in the mixture of 1-5 MPa over a pressing period of up to 60 minutes; and e) removing the sleeper from the mould.

The process of the invention presents a simple, effective and continuous process for producing slabs and panels from compositions free from ceramic components or ceramic binders.

The process of the invention presents a simple, effective and continuous process for producing slabs and panels from compositions free from ceramic components or ceramic binders.

The present invention relates to an ultra-fast setting cement composition containing at least amorphous calcium aluminate including by weight, as compared to amorphous calcium aluminate total weight: (a) from 35 to 55% of calcium oxide CaO (C), (b) from 19 to 55% of alumina Al.sub.2O.sub.3 (A),
the C/A molar ratio being higher than or equal to 1.5, (c) from 0 to 10% of silica SiO.sub.2,
with the amorphous calcium aluminate including (d) from 5 to 16% of iron oxide Fe.sub.2O.sub.3. Also disclosed is a method to produce the cement composition, as well as to uses thereof.

The Present disclosure is related to hot-mix asphalt (HMA) for asphalt cement concrete (ACC) pavement. Equivalent-performing pavement may be made at lower cost, or higher-performing pavement may be made at equivalent-to-prior-art cost. The amendments, recycled asphalt pavement (RAP, and including recycled asphalt shingles [RAS]), and reinforcing fiber (aramid fiber) may be adjusted as described herein to achieve a desired price/performance target.

The Present disclosure is related to hot-mix asphalt (HMA) for asphalt cement concrete (ACC) pavement. Equivalent-performing pavement may be made at lower cost, or higher-performing pavement may be made at equivalent-to-prior-art cost. The amendments, recycled asphalt pavement (RAP, and including recycled asphalt shingles [RAS]), and reinforcing fiber (aramid fiber) may be adjusted as described herein to achieve a desired price/performance target.

The present invention provides a composite film containing polyethylene terephthalate, which comprises inorganic mineral powder, polyethylene terephthalate, an auxiliary plastic, and an auxiliary agent. The present invention also provides a method of preparing the composite film, which comprises internally mixing inorganic mineral powder, polyethylene terephthalate, an auxiliary plastic, and an auxiliary agent to form a composite soft material; configuring the composite soft material to be in a sheet shape; and stretching the composite soft material to form a composite film.

The present invention provides a composite film containing polyethylene terephthalate, which comprises inorganic mineral powder, polyethylene terephthalate, an auxiliary plastic, and an auxiliary agent. The present invention also provides a method of preparing the composite film, which comprises internally mixing inorganic mineral powder, polyethylene terephthalate, an auxiliary plastic, and an auxiliary agent to form a composite soft material; configuring the composite soft material to be in a sheet shape; and stretching the composite soft material to form a composite film.

The present invention is a system for repairing asphalt. The system includes a discrete quantity of an asphalt repair composition located within a container and an induction heater. The composition is a combination of an asphalt binder, aggregate particles, and induction particles. The average diameter of the induction particles ranges from approximately 10% above to approximately 10% below an average diameter of the aggregate particles used in the composition. The induction heater heats the composition within the container by generating a magnetic field that penetrates the container. The magnetic field creates eddy currents in the induction particles. These eddy currents in turn heat the composition. Because the induction particles are distributed throughout the composition, the composition heats rapidly.