摘要:
A field-assembly dowel basket for concrete construction configured for in-the-field assembly from standardized components. This allows a number of standard components, including clips, connectors and wire frame components, to be conveniently transported and stored on construction sites to facilitate on-site assembly of dowel baskets on an as-needed, where-needed basis. Since the dowel basket components are much smaller than assembled baskets, they can be shipped and stored much more cost effectively. Standardization of components allows mass production, consolidates inventory management, and avoids the need for ad hoc fabrication for each construction site. On-site fabrication largely eliminates welding from the dowel basket fabrication process (wire frame clips may involve welding), avoids shipping of fabricated dowel baskets, and allows assembly of dowel basket by construction workers as opposed to highly skilled welding shops.
摘要:
An illustrative example embodiment of a concrete joint insert includes a body having two ends, two longitudinal edges between the ends and two side surfaces between the longitudinal edges. A sealant is secured to one of the longitudinal edges so that the insert and the sealant can be simultaneously installed at the location of a concrete joint.
摘要:
A slip dowel tube and elongate dowel are disclosed herein which allow for transverse and longitudinal movement of two adjacent concrete slabs and also limit vertical movement of the two concrete slabs. The slip dowel tube is housed within a sheath that provides a void to allow for transverse movement of the slip dowel tube when the first and second slabs move transversely with respect to each other. The elongate dowel is slidably disposed within the main tube to allow for longitudinal movement or movement which brings the two slabs closer to or further away from each other. This system also limits vertical movement between the two adjacent slabs.
摘要:
An asphalt paving seam gasket comprises a footing sheet, a seam wall and a ramp extension. Once the footing sheet is anchored to the substrate, the seam wall provides a supporting buttress for the compaction of an initial lane of paving, while the ramp extension provides a sloped access for vehicles to mount the initial lane during the interval before the adjoining lane of paving is applied. Optionally, an adhesive resin is applied to the contact surfaces of the gasket to strengthen their bonding to the asphalt material and prevent moisture penetration between the gasket and the asphalt material.
摘要:
An article of manufacture is disclosed for incorporating into a civil engineering structure, for example a concrete structure, such as a floor. The article comprises a substantially fully cured thermosetting polymer resin and a particulate aggregate material having a Mohs hardness of from 3 to 9, preferably from 5 to 8. The article optionally comprises a reinforcing fiber.The hardness of the article can be closely matched to that of the surrounding structure. The article can be ground with a diamond tool to form a smooth transition with the surrounding structure.The article is particularly suitable for incorporation into an exposed surface of the structure.
摘要:
Making a water permeable traffic bearing system includes preparing a compound water permeable base in contact with a native substrate, and installing a drainage system having a plurality of elongate drainage joints over the prepared water permeable base. Each of the drainage joints defines a plurality of vertical drainage conduits opening at upper and lower sides and in fluid communication with a storage volume defined by the water permeable base. Making the water permeable traffic bearing system further includes forming a segmental mat having a plurality of water impermeable surface pads abutting the plurality of drainage joints, at least in part by filling voids extending horizontally between the drainage joints with a curable paving material, and curing the paving material within the voids, in contact with each of the water permeable base and the drainage joints. Installing the drainage system further includes tuning precipitation handling of the traffic bearing system, at least in part by setting a spacing and a number of the drainage joints responsive to, a water throughput factor of the traffic bearing system and a structural factor of the segmental mat. The drainage joints may have upwardly and downwardly oriented legs joined via a bridge in an H-configuration.
摘要:
An article of manufacture is disclosed for incorporating into a civil engineering structure, for example a concrete structure, such as a floor. The article comprises a substantially fully cured thermosetting polymer resin and a particulate aggregate material having a Mohs hardness of from 3 to 9, preferably from 5 to 8. The article optionally comprises a reinforcing fiber.The hardness of the article can be closely matched to that of the surrounding structure. The article can be ground with a diamond tool to form a smooth transition with the surrounding structure.The article is particularly suitable for incorporation into an exposed surface of the structure.
摘要:
Making a water permeable traffic bearing system includes preparing a compound water permeable base in contact with a native substrate, and installing a drainage system having a plurality of elongate drainage joints over the prepared water permeable base. Each of the drainage joints defines a plurality of vertical drainage conduits opening at upper and lower sides and in fluid communication with a storage volume defined by the water permeable base. Making the water permeable traffic bearing system further includes forming a segmental mat having a plurality of water impermeable surface pads abutting the plurality of drainage joints, at least in part by filling voids extending horizontally between the drainage joints with a curable paving material, and curing the paving material within the voids, in contact with each of the water permeable base and the drainage joints. Installing the drainage system further includes tuning precipitation handling of the traffic bearing system, at least in part by setting a spacing and a number of the drainage joints responsive to, a water throughput factor of the traffic bearing system and a structural factor of the segmental mat. The drainage joints may have upwardly and downwardly oriented legs joined via a bridge in an H-configuration.
摘要:
A longitudinal pavement joint for joining pavement lanes, the longitudinal pavement joint comprising: one or more joining surfaces having respective slope angles between about 0 and about 45 degrees; and optionally, one or more wall surfaces having respective slope angles between about 45 and about 90 degrees, the joining surfaces and the wall surfaces being disposed adjacent one another, and one or more of the joining surfaces comprising a respective joining surface feature.
摘要:
Making a water permeable traffic bearing system includes preparing a compound water permeable base in contact with a native substrate, and installing a drainage system having a plurality of elongate drainage joints over the prepared water permeable base. Each of the drainage joints defines a plurality of vertical drainage conduits opening at upper and lower sides and in fluid communication with a storage volume defined by the water permeable base. Making the water permeable traffic bearing system further includes forming a segmental mat having a plurality of water impermeable surface pads abutting the plurality of drainage joints, at least in part by filling voids extending horizontally between the drainage joints with a curable paving material, and curing the paving material within the voids, in contact with each of the water permeable base and the drainage joints. Installing the drainage system further includes tuning precipitation handling of the traffic bearing system, at least in part by setting a spacing and a number of the drainage joints responsive to, a water throughput factor of the traffic bearing system and a structural factor of the segmental mat. The drainage joints may have upwardly and downwardly oriented legs joined via a bridge in an H-configuration.