Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
  • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material

Definitions

• the invention relates to the field of construction of buildings, for various uses, from prefabricated panels produced by pouring a mixture of cement and aggregates, and integrating some of the subsets of traditional constructions.
• the known processes and constructions of the genre in question use elementary panels of varying sizes, made from traditional reinforced or unreinforced concrete.
• the construction according to the invention requires half a day of factory prefabrication, half a day for the preparation of the ground (foundations) and half a day for site work to assemble it (structural work). Given the very nature of the panels according to the invention (smooth inside face, rough outside face, nailable material, integrated thermal and sound insulation, etc.) certain posts in the finishing work are significantly reduced ( they were not evaluated in the study carried out).
• FIG. 1 is a partial perspective view of two joined panels mounted
• FIG. 2 is a top view, in section, putting in the foreground the means for fixing the panels together;
• FIG. 3 is a side view, in section, of a complete panel with its sill, integrated or not, resting on the sole;
• FIG. 4 is a partial view of the panel and the sill in the junction area;
• FIG. 5 is a side view of the installation according to the invention
• FIG. 6 is a sectional view of a traditional construction
• FIG. 7 is a sectional view of a construction according to the invention for comparison.
• the assembly shown in the figures comprises a prefabricated supporting panel (1), with a basic metal frame (2), of the welded mesh type, corresponding to a level of construction and to one of the four walls delimiting the volume. of construction, made in a single element from a mixture consisting essentially of cement, stabilized wood chips (for example with a commercial setting accelerator) and a material intended for removing the cement (of the "transporter" type commercial air), in the following approximate proportions:
• the lightened panel thus obtained has a density of the order of 600 to 700 gs / m3, ie 3 to 4 times less than that of traditional concrete. It includes, integrated into the panel:
• the sill and the panel are prefabricated separately and then joined together on site with laying mortar.
• the panel is cast in a horizontal formwork from the above-mentioned mixture, kneaded in a kneader, for example with blades, and undergoes, before hardening, a debubbling from a vibrating device which is moved over any its surface so as to obtain the underside of the smooth panel (it will become the interior wall of the construction on which no plaster will be necessary) and its rough upper face (it will come the exterior wall of the construction on which the exterior coating , traditional coating or plastic, will be fixed).
• the gables are also prefabricated in light concrete.
• the panel thus obtained (over a thickness of 20 cm for example) has exceptional thermal and sound insulation coefficients. In addition, by its structure, you can screw or nail any element.
• the essential characteristics of said panel are as follows:
• the coefficient K is of the order of 0.48 for a wall of about 20 cm (against 0.70 for aerated concrete). It drops below 0.40 with the use of a BA10 indoors.
• Each panel used in construction is produced in the same way with variations relating to dimensions, openings, technical ducts, etc.
• a construction comprises 4 panels fixed at the 4 corners by means of brackets (14), for example made of expanded metal, of nails (15), for example twisted, and of mortar which is placed in the rebate (10) and between the brackets (keying) and the panels.
• the brackets can be replaced by a single bracket covering the quasi-height of the panel.
• the nails connect two adjoining panels as shown in Figure 2 and are placed along the vertical wall directly on the panels and through the brackets.
• the panels (1) each rest on a sill (11), integrated or not, which rests on at least two foundation wells (17), or prefabricated in ⁇ intermediate flanges (16), located at its ends.
• An anti-vibration and anti-seismic elastic joint (18), SNCF type, can be interposed between the sill and the sole or between the sill and the concrete of the well.
• the sill can include a rebate (19) intended to support the slab (20) which can be poured on site or prefabricated in light concrete with possibly supporting sills in the case of large dimensions.
• the slab can also integrate technical sheaths.
• the assemblies consisting of 4 prefabricated panels can be juxta ⁇ posed (large buildings on one level) or superimposed (multi-storey buildings).
• the sill further comprises a rebate (23), which associated with the overlapping part (24) of the panel, prevents runoff water from entering the construction.
• the process for producing each of the four panels as described above also consists in projecting, onto the horizontal free face which has just been poured, a mixture of sand and highly dosed cement which ensures better resistance to finishing plaster; said coating can also be projected onto a grid, for example a polyester, for better resistance over time.
• the installation for the implementation of the method, as described above, it comprises: a) at least one form (25), horizontal, provided with a rotation axis (26) allowing its setting up. vertical position for removing the prefabricated panel; b) a bracket (27) fixed along one side of each branch and intended to support the sill.
• Said section comprises uprights (28) and (29) ensuring its connection with the ground, of the prefabrication unit, in which the foundations (30) have been poured.
• FIG. 6 deals with the structural work station of a traditional construction implementing: a) earthworks (gutters ) b) concrete for linear foundations (32) c) peripheral chaining (33) in reinforced concrete d) the base in hollow plaster (34) e) the hedgehog (35) f) the pouring of the reinforced slab (36) g) the construction of the walls (37) h) the leveling of the gables i) the lintels, chaining and stiffeners, the sand pit (not shown) j ) the laying screed (38) and the laying of the tiles.
• the invention is not limited to the embodiments described and
• the basic aggregate can be made of any light material other than wood.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
• Panels For Use In Building Construction (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9382444

Family Applications (1)

Country Status (3)

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Citations (12)

Family Cites Families (5)

• 1989
  • 1989-06-01 FR FR8907493A patent/FR2647835A1/fr active Granted
• 1990
  • 1990-05-25 WO PCT/FR1990/000369 patent/WO1990015202A1/fr not_active Application Discontinuation
  • 1990-05-25 AU AU57442/90A patent/AU5744290A/en not_active Abandoned

Patent Citations (12)

Non-Patent Citations (1)

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