1. A panel system is provided that includes: a first and second panel each having a top side providing a road surface and a bottom side opposite the top side, where the bottom side contacts a ground surface, and a plurality of lateral sides. At least one of the plurality of the lateral sides of the first and second panels include a feature that interlock adjacent lateral sides of the first and second panels against vertical movement relative to each other.

A plastic patio paver block comprises a top panel, a sidewall depending downwardly from a periphery of the top panel, a plurality of internal support members that depend downwardly from an inner face of the top panel and that are spaced inwardly from the sidewall, a plurality of drainage openings provided in the top panel, and a granular UV resistant material embedded into an upwardly facing plastic face of the top panel, wherein a portion of the granular UV resistant material is partially embedded in the upwardly facing plastic face.

A kit including a plurality of interior paving blocks and a plurality of edge paving blocks.

Disclosed is a multifunctional synthetic resin block for roads. The synthetic resin block includes a water permeable sheet configured as a synthetic resin block having a flat sheet shape so as to be laid on a ground, a block frame configured as a synthetic resin body taking a form of a rectangular frame, which is divided into multiple rectangular areas each having open top and bottom sides, so as to be installed on the upper surface of the water permeable sheet, the rectangular areas being filled with filler stones, and multiple corrugated plates each configured as a synthetic resin having a rectangular plate shape and arranged so that corrugations thereof are oriented perpendicular to each other so as to cover the rectangular areas of the block frame. The synthetic resin block provides almost all functions, such as a rainwater retention function, water permeation function, and anti-slippage function, at low cost.

A helicopter take-off and landing pad (helipad) includes a drain conduit embedded within a surface, a bed of crushed aggregate within a portion of the surface graded to be inclined toward the drain conduit, and a plurality of pavers supported by the aggregate bed and defining a substantially level top surface to serve as a landing surface for a helicopter. The plurality of pavers are permeable to liquid on the top surface to communicate the liquid to the aggregate bed. A pump connected to the drain conduit is operable to discharge liquid directed from the aggregate bed through the drain conduit to a water separator that is operable to separate water from other liquid components of the discharged liquid. At least one collection tank is fluidly connected to the water separator to receive the other liquid components discharged by the water separator.

Embodiments provide a polymeric walkway for mitigating surface water runoff and a method for constructing the same. A polymeric walkway module is secured to a pre-conditioned ground. The polymeric walkway module includes an upper panel, a lower panel, and a plurality of spacers. The upper panel includes a plurality of perforations. The plurality of spacers is positioned between the upper panel and the lower panel defining a hollow space. Surface water permeates through the plurality of perforations and occupies the hollow space during the surface water runoff.

A method of manufacturing a catalytic sieve includes providing starting materials of an aggregate, a cementing agent, a sublimation agent and water. The sublimation agent (between 25% and 50% by weight of the cementing agent) is selected from molybdenum disulfide, tungsten disulfide, vanadium disulfide, copper sulfate, and combinations thereof. The aggregate contains at least 2% by weight of at least one transition metal. The method includes mixing the starting materials to achieve a mixture, placing the mixture into a form, and curing the mixture in the form to allow the mixture to become a solidified unit defined by a minimum dimension of thickness, length, width or diameter. The method further includes placing the solidified unit into a kiln, heating the kiln to 1115°−1350° C., maintaining the kiln at the temperature for between 10-60 minutes per centimeter of the minimum dimension, and removing the solidified unit from the kiln.

Provided is a multilayer precast paved road that enables simple coupling between upper pavement panels and lower pavement panels using joint members and enables easy and quick assembly and removal without requiring a large number of processes. A multilayer precast paved road including a plurality of precast lower pavement panels laid on a road panel and a plurality of precast upper pavement panels laid on upper surfaces of the lower pavement panels is configured such that the lower pavement panels 3 and the upper pavement panels are arranged in a zigzag manner, and joint members are provided to lie between upper and lower joining surfaces of the lower pavement panels and the upper pavement panels, and the lower pavement panels and the upper pavement panels are coupled to each other through engagement or fitting between the lower pavement panels and the upper pavement panels achieved by the joint members.

A porous pavement system and a method of maintaining the porous pavement system are disclosed. A combination of porous and non-porous pavers are laid out to create a porous pavement. A receptacle or retainer for receiving a tool is in incorporated into the porous pavers, to facilitate lifting the pavers by means of the tool. A cradle may be used to hold multiple pavers.

A plastic patio paver block comprises a top panel, a sidewall depending downwardly from a periphery of the top panel, a plurality of internal support members that depend downwardly from an inner face of the top panel and that are spaced inwardly from the sidewall, a plurality of drainage openings provided in the top panel, and a granular UV resistant material embedded into an upwardly facing plastic face of the top panel, wherein a portion of the granular UV resistant material is partially embedded in the upwardly facing plastic face.