A removable modular slab for use in the construction industry includes upper, lower, and first and second opposing end surfaces, and a conduit extending from the upper surface to an end surface. The slab is abuttable with a second removable modular slab, having: (i) a conduit extending from the uppe
A removable modular slab for use in the construction industry includes upper, lower, and first and second opposing end surfaces, and a conduit extending from the upper surface to an end surface. The slab is abuttable with a second removable modular slab, having: (i) a conduit extending from the upper surface to an end surface, and/or (ii) a cavity extending from an end surface into the slab, whereby the conduits mate to form an elongate conduit through the two slabs. By access through apertures in each slab, a first joining structure is removably locatable to join the two slabs. Cavities may terminate within the second slab and only be accessible through the upper surface of the first slab. A modular surface system includes two such slabs and a joining structure to join the two slabs together.
대표청구항▼
1. A modular surface system for use in construction, comprising: a removable, modular first slab, including: an upper surface, a lower surface opposed to the upper surface, and first and second opposing end surfaces between the upper and lower surfaces, each of said end surfaces defining an end surf
1. A modular surface system for use in construction, comprising: a removable, modular first slab, including: an upper surface, a lower surface opposed to the upper surface, and first and second opposing end surfaces between the upper and lower surfaces, each of said end surfaces defining an end surface profile which is angled at 45° or less to a plane substantially normal to said upper and lower surfaces; anda conduit extending from an aperture in the upper surface to an aperture in one of said end surfaces;a removable, modular second slab, including: an upper surface, a lower surface opposed to the upper surface, and first and second opposing end surfaces between the upper and lower surfaces, each of said end surfaces defining an end surface profile which is angled at 45° or less to a plane substantially normal to said upper and lower surfaces, the second slab being provided with a cavity extending from an aperture in one of said end surfaces thereof into said second slab; anda first or a second joining structure, the first joining structure being fastenable and tensionable at the upper surfaces of each of the first and second slabs, and the second joining structure being anchored at a terminal end of the cavity in the second slab and tensionable at the upper surface of the first slab;wherein a plurality of such slabs are end-to-end abuttable with one another, andwherein the cavity extends from the aperture in the one said end surface of the second slab into an interior portion of the second slab, and wherein the second slab is end-to-end abuttable with the first slab, whereby the cavity of the second slab is mateable with the conduit of the first slab to form an arcuate or parabolic elongate cavity through the one said end surfaces of the first and second slabs, the arcuate or parabolic elongate cavity terminating within the second slab and which is only accessible through the aperture in the upper surface of the first slab, the second joining structure being only removably locatable from above via such aperture in the upper surface of the first slab for joining the first and second slabs together. 2. The system of claim 1, wherein the first and second opposing end surfaces of one slab are profiled such that a cooperative joint is formable with one of the first and second end surfaces of the other slab when the two slabs are abutted together. 3. The system of claim 2, wherein at least one of the first and second end surfaces of one slab includes a protrusion and at least one of the first and second end surfaces of the other slab includes a corresponding concavity. 4. The system of claim 2, wherein the first and second end surfaces of each of the first and second slabs defines a cooperative joint end surface profile that extends the entire length of each of the end surfaces of both slabs. 5. The system of claim 2, wherein the first and second end surfaces of each of the first and second slabs defines a cooperative joint end surface profile that extends only a portion of the length of each of the end surfaces of both slabs. 6. The system of claim 2, wherein the first slab is a type-A slab wherein the first and second end surfaces of the first slab have identical profiles, and wherein the second slab is a type-B slab, and wherein the profiles defined by the end surfaces of the type-A and type-B slabs are different but cooperative when respective ones of the end surfaces of the first and second slabs are in abutment. 7. The system of claim 1, wherein the first and second end surfaces of the first slab define different profiles, the profile of the first end surface being cooperable with the profile of the second end surface whereby the first slab defines a type-C slab. 8. The system of claim 1, wherein the slabs are pre-cast or pre-molded from a construction material. 9. The system of claim 8, wherein the construction material is fibre-reinforced concrete, reinforced concrete, or a plastics material. 10. The system of claim 8, wherein the slabs have one or more voids in them, thereby reducing weight. 11. The system of claim 1, wherein the slabs include one or more channels in at least one of the upper surfaces. 12. The system of claim 1, wherein the slabs include one or more longitudinal ducts and/or one or more transverse ducts therewithin. 13. A method of removably joining two construction slabs, each having an upper surface, a lower surface opposed to the upper surface, and first and second opposing end surfaces between the upper and lower surfaces, each of said end surfaces defining an end surface profile which is angled at 45° or less to a plane substantially normal to said upper and lower surfaces, one slab having a conduit extending from an aperture in the upper surface thereof to an aperture in one of said end surfaces thereof and the other slab having a cavity extending from an aperture in one of said end surfaces thereof into said slab, the method comprising: end-to-end abutting the two slabs, such that the conduit in one slab is mateable with the cavity in the other slab so as to form an elongate cavity, which is arcuate or parabolic, through the end surfaces of the two slabs, andremovably locating a joining structure, which is anchored at a terminal end of the cavity in one slab and tensionable at the upper surface of the other slab, in the elongate arcuate or parabolic cavity such that the joining structure is only accessible via said upper surface. 14. The method of claim 13, further comprising subsequently anchoring/fastening and tensioning the joining structure. 15. The method of claim 13, further comprising pre-abutting the two slabs in an end-to-end configuration.
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이 특허에 인용된 특허 (12)
Gaudelli Edmond N. (2438 Hayson Ave. Pittsburgh PA 15220) Shepler Edward E. (1733 Potomac Ave. Dormont PA 15216), Apparatus and procedure for forming pre-shaped interlocking cement slabs.
Reese Robert W. (Christiana PA) Keech Stephen W. (Morgantown PA), Method and article of manufacture for removable pavement for underground utility placement.
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