Abstract:
Procedimientos para la construcción y reparación de pavimentos de hormigón. Incluyen la realización a lo largo de cada junta entre losas colindantes y de forma paralela a su plano vertical de una pluralidad de huecos superficiales (23, 43) en losas colindantes (41, 21 ) alternadamente a cada lado de la junta (11 ) con una altura máxima inferior al espesor del pavimento y de una pluralidad de orificios (27, 27'; 47, 47') en los bordes de losas colindantes (21, 41 ) con, al menos, una parte común con dichos huecos superficiales (23, 43) y el rellenado con hormigón de dicha pluralidad de huecos superficiales (23, 43) y dicha pluralidad de orificios (27, 27'; 47, 47') para formar una pluralidad de conectores (22, 42) formados por dientes de transferencia de cargas (25, 45) entre losas colindantes (21, 41 ) y columnas de sujeción (29, 29'; 49, 49') de dichos dientes (25, 45).
Abstract:
A concrete float, float assembly, float adapter and interface, and float vibration apparatus and methods are described. A concrete float has improved surfaces, and structures for controlling flow of wet concrete. An interface such as may be included in a quick attach/release configuration may be integrated on a float, and/or may be added onto a float for quick attach/release of a pivot assembly. Adapters may ease attachment or release of an assembly, and may be an interengaging element, such as a sliding dovetail as an interengaging element, or an adapter may be used to place an assembly in tension to secure the assembly. A vibration assembly may be included and configured to have a low center of mass, can have a user display, an accelerometer, and/or other components. A pivot assembly may be included for easier use by an operator, and may include a user display, quick release mechanisms.
Abstract:
A pick assembly comprising a holder body, a strike body, a base body attachable to a drive mechanism, and an interference assembly comprising at least one interference member. The holder body comprises a head portion and a shaft depending from the head portion. The strike body comprises a super-hard strike tip. The head portion and the strike body are cooperatively configured such that the strike body can be attached to the head portion, the strike tip being exposed for striking a body to be degraded when in use. The base body comprises a base bore. The base bore, shaft and interference assembly are cooperatively configured such that the shaft can be secured within the base bore, the interference member disposed between the shaft and the bore. Frictional interference between the shaft, interference assembly and base bore is sufficient to prevent rotation of the shaft within the base bore in use.
Abstract:
Disclosed is an apparatus and a method capable of forming the anti-slip groove in a variety of shapes without cutting concrete or asphalt pavements unlike the conventional cutting technology, with making use of a non-cutting type of pressurizing rotator(130) under the condition of predetermined temperature and pressure being maintained in such a manner that the pressurizing rotator is mounted to a lower portion of a grooving vehicle. The forming plate(132) is integrally mounted to a radial outer surface of the main body(131) by welding. A plurality of peaks(135) are formed on a surface of the forming plate(132), the peaks(135) being corresponding with a shape of the anti-slip groove to be formed on roadway. Alternatively, a plurality of peaks can be directly formed on a radial outer surface of the main body(131).
Abstract:
This document discloses novel conduits for telecommunications lines, such as optical fibers. In an aspect, a conduit might have a body defining one or more channels into which optical fibers can be inserted. In another aspect, the body might have a first face that is substantially planar and a second face opposing the first face. The second face might a low-rise arc profile and/or might be configured to be installed into a depression in a material. Also disclosed are methods and tools for installing, using, and/or removing such conduit.
Abstract:
A control joint device including a reciprocating means, a surface breaking member and a ridge member having a generally flat bottom surface except for a first ridge along, at least, a portion of its length, wherein, in use, the first ridge of the ridge member is positioned behind the surface breaking member, the surface breaking member is mechanically reciprocatable in a straight line between a first position and a second position along an axis substantially perpendicular to the plane of a setting material, the first position being substantially level with the first ridge of the ridge member and the second position being spaced apart from the first position and wherein the ridge member further includes a planar surface from which the first ridge extends.
Abstract:
A method and apparatus for creating pre-stressed zones in concrete. In one embodiment, a circular blade is coated with a chemical which retards the setting of the concrete. The circular blade is then rolled through the wet concrete, thus transferring the retarding chemical from the blade into the concrete. The region of wet concrete that as the retarding chemical introduced into it does not set until after the surrounding concrete has set and shrunk, thus creating a pre-stressed zone which typically manifests itself as a crack, visible upon setting of the wet concrete. Other embodiments describe alternative ways of introducing the chemical into the wet concrete.
Abstract:
The present invention relates to a road marking comprising a profile comprising a luminescent component, which is to be installed in the road surface, in which profile one or more light sources are present and the aforesaid luminescent component is located above said one or more light sources. The profile is made of an elastic material, wherein the part of the profile present at the surface of the road surface is translucent.
Abstract:
A method and apparatus for creating pre-stressed zones in concrete. In one embodiment, a circular blade is coated with a chemical which retards the setting of the concrete. The circular blade is then rolled through the wet concrete, thus transferring the retarding chemical from the blade into the concrete. The region of wet concrete that as the retarding chemical introduced into it does not set until after the surrounding concrete has set and shrunk, thus creating a pre-stressed zone which typically manifests itself as a crack, visible upon setting of the wet concrete. Other embodiments describe alternative ways of introducing the chemical into the wet concrete.