The invention relates to a method for manufacturing a road pavement comprising pipes of a device for a heat exchanger, comprising the following steps: a) digging a course to create grooves extending in a same direction and strips connecting the grooves, then b) laying the pipe having a crushing strength higher than 2 000N per linear metre of pipe at 100° C. into the grooves created in step a); and then c) filling the empty space left free by the pipe in the grooves with an asphalt mix having a working temperature lower than 160° C., based on: a hydrocarbon binder, at least 90% by weight, with respect to the total weight of the asphalt mix, of an aggregate fraction the elements of which have dimensions less than 10 mm, and comprising from 30% to 60% by weight, with respect to the total weight of the aggregate fraction, of sand, d) applying a surface course for a road pavement.

A concrete slab (20) comprises conventional concrete and a combined reinforcement of both post-tension steel strands (22, 26) and fibres (29). The post-tension steel strands (22, 26): —have a diameter ranging from 5 mm to 20 mm, —have a tensile strength higher than 1700 MPa. The fibres (29) are present in a dosage ranging from 10 kg/m.sup.3 to 40 kg/m.sup.3 in case of steel fibres are in a dosage ranging from 1.5 kg/m.sup.3 to 9 kg/m.sup.3 in case of macro-synthetic fibres.

A running track includes a reinforced concrete slab base that is poured over and around post-tensioning cables suspended therein. The post-tensioning cables include transverse cables that extend transversely across the base, and lengthwise cable structures extending lengthwise through the base. Each lengthwise cable structure includes a series of individual segments that are joined end-to-end to form respective continuous loops and are individually tensioned. The lengthwise cable structures thus exert compressive forces on the base that are continuous and uninterrupted about the circumferential length of the track. The lengthwise cable segments are joined/tensioned from within voids initially formed within the concrete base and, after tensioning, these voids are filled with concrete to provide a concrete base having a uniform top surface that can also be covered in a running surface.

A running track includes a reinforced concrete slab base that is poured over and around post-tensioning cables suspended therein. The post-tensioning cables include transverse cables that extend transversely across the base, and lengthwise cable structures extending lengthwise through the base. Each lengthwise cable structure includes a series of individual segments that are joined end-to-end to form respective continuous loops and are individually tensioned. The lengthwise cable structures thus exert compressive forces on the base that are continuous and uninterrupted about the circumferential length of the track. The lengthwise cable segments are joined/tensioned from within voids initially formed within the concrete base and, after tensioning, these voids are filled with concrete to provide a concrete base having a uniform top surface that can also be covered in a running surface.

The present invention relates to a method for constructing a continuously reinforced concrete pavement using foam shotcrete by: positioning continuous reinforcement bars on a base layer where a concrete pavement is constructed; producing normal concrete having a compressive strength of 21-30 MPa from a batch plant and transporting same to a construction site; and shooting a normal strength concrete, which has been produced by mixing, with a mixing part, fly ash or fine slag powder or a low-grade mixed material produced by mixing the fly and the fine slag powder in a state in which fluidity has been increased by mixing in 20-40% of air bubbles with respect to volume, or shooting a high-performance concrete, which has been produced by mixing, with the mixing part, one or a mixture of two or more of silica fume, meta-kaolin, latex, polymers, and a coloring material.

The present invention relates to a method for constructing a continuously reinforced concrete pavement using foam shotcrete by: positioning continuous reinforcement bars on a base layer where a concrete pavement is constructed; producing normal concrete having a compressive strength of 21-30 MPa from a batch plant and transporting same to a construction site; and shooting a normal strength concrete, which has been produced by mixing, with a mixing part, fly ash or fine slag powder or a low-grade mixed material produced by mixing the fly and the fine slag powder in a state in which fluidity has been increased by mixing in 20-40% of air bubbles with respect to volume, or shooting a high-performance concrete, which has been produced by mixing, with the mixing part, one or a mixture of two or more of silica fume, meta-kaolin, latex, polymers, and a coloring material.

A running track includes a reinforced concrete slab base that is poured over and around post-tensioning cables suspended therein. The post-tensioning cables include transverse cables that extend transversely across the base, and lengthwise cable structures extending lengthwise through the base. Each lengthwise cable structure includes a series of individual segments that are joined end-to-end to form respective continuous loops and are individually tensioned. The lengthwise cable structures thus exert compressive forces on the base that are continuous and uninterrupted about the circumferential length of the track. The lengthwise cable segments are joined/tensioned from within voids initially formed within the concrete base and, after tensioning, these voids are filled with concrete to provide a concrete base having a uniform top surface that can also be covered in a running surface.

A running track includes a reinforced concrete slab base that is poured over and around post-tensioning cables suspended therein. The post-tensioning cables include transverse cables that extend transversely across the base, and lengthwise cable structures extending lengthwise through the base. Each lengthwise cable structure includes a series of individual segments that are joined end-to-end to form respective continuous loops and are individually tensioned. The lengthwise cable structures thus exert compressive forces on the base that are continuous and uninterrupted about the circumferential length of the track. The lengthwise cable segments are joined/tensioned from within voids initially formed within the concrete base and, after tensioning, these voids are filled with concrete to provide a concrete base having a uniform top surface that can also be covered in a running surface.

Systems and methods for providing a running track having a reinforced base using post-tensioning are provided herein. In one exemplary configuration, the track comprises a reinforced concrete slab base that is poured over and around post-tensioning cables suspended therein. The post-tensioning cables include transverse cables that extend transversely across the base, and lengthwise cable structures extending lengthwise through the base. Each lengthwise cable structure includes a series of individual segments that are joined end-to-end to form respective continuous loops and are individually tensioned. The lengthwise cable structures thus exert compressive forces on the base that are continuous and uninterrupted about the circumferential length of the track. Moreover, the lengthwise cable segments are joined/tensioned from within voids initially formed within the concrete base and, after tensioning, these voids are filled with concrete to provide a concrete base having a uniform top surface that can also be covered in a running surface.

Systems and methods for providing a running track having a reinforced base using post-tensioning are provided herein. In one exemplary configuration, the track comprises a reinforced concrete slab base that is poured over and around post-tensioning cables suspended therein. The post-tensioning cables include transverse cables that extend transversely across the base, and lengthwise cable structures extending lengthwise through the base. Each lengthwise cable structure includes a series of individual segments that are joined end-to-end to form respective continuous loops and are individually tensioned. The lengthwise cable structures thus exert compressive forces on the base that are continuous and uninterrupted about the circumferential length of the track. Moreover, the lengthwise cable segments are joined/tensioned from within voids initially formed within the concrete base and, after tensioning, these voids are filled with concrete to provide a concrete base having a uniform top surface that can also be covered in a running surface.