摘要:
A foundation base (11) used as a gravity-based structure made from reinforced concrete using for this purpose a submersible structure equipped with sliding formwork to confine the concrete and to give it the form of a quasi-pyramidal caisson (12), the section of which decreases as the height of the foundation base (11) increases and which includes internal cells (31) to increase the buoyancy of the foundation base (11), constructed on a structure (51) for manufacture of caissons.
摘要:
A set of construction plates (11) installed on the surface (13) of the free internal section of a tunnel (12). The construction plate (11) displays the shape of an undulated plate. The construction plate (11) with undulations is transversally and longitudinally overlappable with other adjacent construction plates (11) in order to fully or partially cover in a transversal and longitudinal manner the internal surface (13) of the tunnel (12), waterproofing said internal surface (13) of the tunnel (12).
摘要:
Process for the preparation of an additive comprising TiO2 particles dispersed on a support of pseudo-layered phyllosilicate-type, comprising the dispersion in water of the support, the acid activation of the support and the high-shear dispersion of the support with the TiO2 particles Use of the particles obtained by this process as additives with photocatalytic activity for water purification and disinfection, for purification of polluted gas streams and to provide materials, in particular construction materials, with self-cleaning, biocide, deodorization and/or pollution reduction properties in the presence of air and ultraviolet light.
摘要:
The invention relates to a formwork segment (11) for the construction of a continuous carriageway for railway tracks, where the formwork segment (11) is rigidly connected to a carriageway segment (41), such that the formwork segment (11) remains permanently on the lower outer face of the carriageway segment (41) and is non-demouldable, a hollow space (12) that can be filled with a poured material being provided, and the formwork segment (11) being made from a composite material such as a reinforced polymer fibre material, thermoplastic materials, or the like.
摘要:
A process for producing microcapsules containing phase-change materials (PCMs) by means of the physical technique of "spray_drying". PCMs will be microencapsulated by using solutions thereof and of polymers, more specifically polyethylene, and ethyl vinyl acetate (EVA) as copolymer, as encapsulating agents, in an appropriate and non-aqueous solvent.
摘要:
A Mechanically Stabilized Earth Wall, comprising face panels with a filling material to be contained, strips to embed into the filling material, connectors to attach the panels to one another, and connecting profiles to join the strips to the panels, wherein panels, strips, connectors and connecting profiles are made of composite materials made up of reinforced resins with unidirectional and woven fibers. Panels have at least one hollow through hole inside, with vertical walls and ribs connecting the opposite sides of the panel. Connectors can be included in the panel as either a horizontal tongue and groove system, or separately, as independent pieces. Connecting profiles can either be part of the panel, as an integral part of it, or form one piece together with the connectors, or be independent profiles attached to connectors. Strips have a flat geometry, including a cut on one end for attachment to a connecting profile.
摘要:
A damping material for train rails which is comprised of a solid mixture of granules derived from the recycling of used tyres and 5% - 45% of polymer by weight of the granules. The prefabricated block (1) for support of a railway rail is comprised of a solid block (2), fixing means (3) for the fixing of the railway rails (4) to said block (2), and a base (5) constituted from the said damping material and joined to the solid block (2). The encased rail (40) is comprised of a casing (41), constituted of said damping material, and a rail (4a) embedded in the casing (41), wherein the casing (41) is adhered to the rail (4a) and covers its entire perimeter with the exception of the running upper surface (4ab).
摘要:
A process for producing microcapsules containing phase-change materials (PCMs) by means of the physical technique of "spray_drying". PCMs will be microencapsulated by using solutions thereof and of polymers, more specifically polyethylene, and ethyl vinyl acetate (EVA) as copolymer, as encapsulating agents, in an appropriate and non-aqueous solvent.
摘要:
A water based polymer composition that comprises a terpolymer formed by at least three types of monomers and a stabilising system that comprises anionic surfactants and nonionic polymers, at least one protector colloid, at least one coalescing agent that favours film formation, and at least one rheological agent for stabilising soils, dust control and embankment erosion. These compositions have demonstrated good stability of the polymer dispersion that is transmitted to the element on which it is applied, a high binding capacity, creating improved compacting of the element on which it is applied; a very good resistance to the atmospheric agents of the polymer dispersion, with the element on which it is applied maintaining the properties that the polymer dispersion provides.