Earthen composite forming system
09803382 · 2017-10-31
Inventors
Cpc classification
E04B2/84
FIXED CONSTRUCTIONS
E04G11/10
FIXED CONSTRUCTIONS
International classification
E04B2/84
FIXED CONSTRUCTIONS
E04G11/22
FIXED CONSTRUCTIONS
E04G11/08
FIXED CONSTRUCTIONS
Abstract
The present invention relates to the creation of structures comprised of earthen-mixed composites. This forming system allows for the efficient creation of structures with relatively low cost, time, and labor with exceptional accuracy. Moreover, the system employs accessible and simple construction materials, allowing users of all skill levels to create structures that may serve as dwellings, educational, working, recreational sites, and the like.
Claims
1. An earthen composite forming system comprising: a plurality of inner and outer vertical columns, the vertical columns comprising a left and a right vertical stud and being connected with a stud connecting plate, wherein the inner vertical columns are located at an inner position to create an inner perimeter, and the outer vertical columns are located at an outer position to create an outer perimeter of a structure, and wherein one of the plurality of inner vertical columns and one of the plurality of the outer vertical columns are connected by a wall thickness stabilizer establishing a desired thickness, and wherein the inner and outer vertical columns are located adjacent to each other at a desired width, and wherein the adjacent inner columns and adjacent outer columns are connected by an upper pole connecting stud; at least two inner and two outer horizontal boards, each horizontal board comprising horizontal and vertical stiffeners on one side, and being flat on an opposite side, wherein each horizontal board is positioned between adjacent inner or outer vertical columns, each horizontal board connecting to the respective vertical columns by a flat plate connecting the horizontal board to the left vertical stud of one vertical column and the right vertical stud of the adjacent vertical column, and wherein the inner and outer horizontal boards each comprise an upper horizontal board and a lower horizontal board; threaded rods are located within a forming earthen composite wall to maintain structural integrity and maintain consistent thickness; and wherein the earthen composite wall is composed of (a) a first layer of earthen composite material positioned in an interstitial space defined by the vertical columns and horizontal boards creating a cavity wherein the first layer of earthen composite material is positioned and dried, and (b) one or more additional layers of earthen composite material positioned over and coextensive with the first layer where the lower inner horizontal and the lower outer horizontal boards are removed from the vertical columns and fastened to the vertical columns above and in connection with the upper inner horizontal board and the upper outer horizontal board thereby creating additional cavities where the additional layers of earthen composite material are positioned and dried until a desired height of a complete earthen composite wall is achieved.
2. The earthen composite forming system of claim 1, wherein the stud connecting plate has an angle of between 0 and 170 degrees.
3. The earthen composite forming system of claim 1, wherein a plurality of boards are configured to be located to exclude the earthen composite material, to form openings within the wall.
4. The earthen composite forming system of claim 1, wherein the inner and outer vertical columns are separated by a width 10-24 inches, forming the earthen composite wall of the same thickness.
5. The earthen composite forming system of claim 1, wherein the wall thickness stabilizer comprises at least two pieces placed between the vertical columns at intervals between 2½ and 3½ feet high on a perpendicular plane, and comprising a respective said threaded rod connecting the inner and outer vertical columns at a center point between the left and right vertical studs, and wherein the at least two pieces are removed from the forming system as the earthen composite wall is formed.
6. The earthen composite forming system of claim 1, wherein the components of the forming system are removed from the complete earthen composite wall.
7. An earthen composite forming system for an earthen composite wall comprising: a plurality of inner and outer vertical columns, the vertical columns comprising a left and a right vertical stud and being connected with an angled stud connecting plate, wherein the inner vertical columns are located at an inner position to create an inner perimeter, and the outer vertical columns are located at an outer position to create an outer perimeter of a structure, wherein the inner and outer vertical columns are located adjacent to each other at a desired width, and wherein the adjacent inner columns and adjacent outer columns are connected by an upper pole connecting stud; a wall thickness stabilizer system located in between and connecting one of the inner vertical columns and one of the outer vertical columns and comprising at least two pieces located between the vertical columns at intervals between 2½ and 3½ feet high on a perpendicular plane, and comprising a threaded rod connecting the inner and outer vertical columns at a center point between the left and right vertical studs and wherein the at least two pieces are removed from the forming system as the earthen composite wall is formed; at least two inner and two outer horizontal boards, each horizontal board comprising horizontal and vertical stiffeners on one side, and being flat on an opposite side, wherein each horizontal board is positioned between adjacent inner or vertical columns, each horizontal board connecting to the vertical columns by a flat plate connecting the horizontal board to the left vertical stud of one vertical column and the right vertical stud of the adjacent vertical column, and wherein the inner and outer horizontal boards each comprise an upper horizontal board and a lower horizontal board; and wherein the earthen composite wall is composed of (a) a first layer of earthen composite material positioned in an interstitial space defined by the vertical columns and horizontal boards creating a cavity wherein the first layer of earthen composite material is positioned and dried, and (b) one or more additional layers of earthen composite material positioned over and coextensive with the first layer where the lower inner horizontal and the lower outer horizontal boards are removed from the vertical columns and fastened to the vertical columns above and in connection with the upper inner horizontal board and the upper outer horizontal board thereby creating additional cavities where the additional layers of earthen composite material are positioned and dried until a desired height of a complete earthen composite wall is achieved.
8. The earthen composite forming system of claim 7, wherein the angled stud connecting plate has an angle of between 10 and 170 degrees.
9. The earthen composite forming system of claim 7, wherein a plurality of boards are configured to be located to exclude the earthen composite material, to form openings within the wall.
10. The earthen composite forming system of claim 7, wherein the inner and outer pairs of vertical beams are separated at a width 10-24 inches, forming a wall of the same thickness.
11. The earthen composite forming system of claim 7, wherein the components of the forming system are removed from the complete earthen composite wall.
12. An earthen composite forming system for creating an earthen composite structure comprising: a plurality of corners, wherein an angle of each corner is determined by a number and dimensions of desired sides, each corner having inner and outer vertical columns, the vertical columns comprising a left and a right vertical stud and being connected with an angled stud connecting plate, wherein the inner vertical columns are located at an inner position to create an inner perimeter, and the outer vertical columns are located at an outer position to create an outer perimeter of the structure, wherein inner vertical columns are located adjacent to each other at a desired width, and outer vertical columns are located adjacent to each other at a desired width, and wherein the adjacent inner columns and adjacent outer columns adjacent to each other are connected by an upper pole connecting stud; a wall thickness stabilizer system located in between and connecting one of the inner vertical columns and one of the outer vertical columns at one of the corners and comprising at least two pieces located between the vertical columns at intervals of between 2½ and 3½ feet high on a perpendicular plane, and comprising a threaded rod connecting the inner and outer vertical columns between the left and right vertical studs, and wherein the at least two pieces are removed from the forming system as the earthen composite structure is formed; at least two inner and two outer horizontal boards, each horizontal board comprising horizontal and vertical stiffeners on one side, and being flat on an opposite side, wherein each horizontal board is positioned between adjacent inner or vertical columns, each horizontal board connecting to the vertical columns by a flat plate connecting the horizontal board to the left vertical stud of one vertical column and the right vertical stud of the adjacent vertical column, and wherein the inner and outer horizontal boards each comprise an upper horizontal board and a lower horizontal board; and wherein the earthen composite structure is composed of (a) a first layer of earthen composite material positioned in an interstitial space defined by the vertical columns and horizontal boards creating a cavity wherein the first layer of earthen composite material is positioned and dried, and (b) one or more additional layers of earthen composite material positioned over and coextensive with the first layer where the lower inner horizontal and the lower outer horizontal boards are removed from the vertical columns and fastened to the vertical columns above and in connection with the upper inner horizontal board and the upper outer horizontal board thereby creating additional cavities where the additional layers of earthen composite material are positioned and dried until a desired height of a complete earthen composite structure is achieved.
13. The earthen composite forming system of claim 12, wherein the angled stud connecting plate has an angle of between 10 and 170 degrees.
14. The earthen composite forming system of claim 12, wherein a plurality of boards are configured to be located to exclude the earthen composite material, to form openings within the structure.
15. The earthen composite forming system of claim 12, wherein the inner and outer pairs of vertical beams are separated at a width 10-24 inches, forming a wall of the same thickness.
16. The earthen composite forming system of claim 12, wherein the components of the forming system are removed from the complete earthen composite structure.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The foregoing and other aspects of the embodiments disclosed herein are best understood from the following detailed description when read in connection with the accompanying drawings. For the purpose of illustrating the embodiments disclosed herein, there is shown in the drawings embodiments presently preferred, it being understood, however, the embodiments disclosed herein are not limited to the specific instrumentalities disclosed. Included in the drawings are the following figures:
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(16) While embodiments of the present invention are described herein by way of example using several illustrative drawings, those stilled in the art will recognize the present invention is not limited to the embodiments or drawings described. It should be understood the drawings and the detailed description thereto are not intended to limit the present invention to the particular form disclosed, but to the contrary, the present invention is to cover all modification, equivalents and alternatives falling within the spirit and scope of embodiments of the present invention as defined by the appended claims.
(17) The headings used herein are for organizational purposes only and are not meant to be used to limit the scope of the description or the claims. As used throughout this application the word “may” is used in a permissive sense (e.g., meaning having potential to) rather than the mandatory sense (e.g., meaning must). Similarly, the words “include,” “including,” and “includes” mean including but not limited to. To facilitate understanding, like reference numerals have been used, where possible to designate like elements common to the figures.
DETAILED DESCRIPTION OF THE INVENTION
(18) Provided herein is a description of a system for creating structures from earthen composites, or an earthen composite structural forming system.
(19) Throughout this application, references are made to various embodiments relating to the system and its implementation. The various embodiments described are meant to provide a variety of illustrative examples and should not be construed as descriptions of alternative species. Rather it should be noted that the descriptions of various embodiments provided herein may be of overlapping scope. The embodiments discussed herein are merely illustrative and are not meant to limit the scope of the system for earthen composite structure construction.
(20) In the present description, any concentration range, percentage range, ratio range or other integer range is to be understood to include the value of any integer within the recited range and, when appropriate, fractions thereof (such as one tenth and one hundredth of an integer), unless otherwise indicated. As used herein, “about” or “comprising essentially of” means +/−15%. The use of alternative (i.e., or) should be understood to mean one, both, or any combination thereof of the alternatives. As used herein, the use of an indefinite article, such as “a” or “an,” should be understood to refer to the singular and the plural of a noun or noun phrase.
(21) An inventory list is attached is described below in “EXAMPLE 1.” The same reflect how accessible and interchangeable the materials used in the earthen composite structural forming system are intended.
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(23) Use of alternate materials which maintain integrity of the vertical stud 124 or 125 and the horizontal board 105 are contemplated and do not depart from the scope of the invention. Fasteners, as described herein, mean any type of material fastener such as nails, screws, rods, staples, injectables, and the like. Moreover fasteners may be expanded to include materials functioning without the use of apertures such as glues, epoxies, resins, and the like.
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(25) Other materials are contemplated for the bent plate 102 and do not depart from the scope of the invention. For instance, the bent plate 102 may be made of synthetic rubbers, composites, epoxies, or metals that have similar malleability properties to aluminum. Use of alternate materials which maintain integrity of the vertical studs 124 or 125 and the horizontal board 105 are contemplated and do not depart from the scope of the invention.
(26) The angle 104 of the bent plate may vary depending on the number of sides in the earthen composite structural forming system, wherein the formula for any polygon is: n−2(180)/n where n is the number of sides and equal angles are desired at each corner. Where variance in wall length is contemplated, the sum of the angles needed can be achieved by using the formula n−2(180), where n is the number of sides. (e.g., where 4 equal walls are contemplated, the bent plate 102 is angled 104 at 90°; where 6 equal walls are contemplated, the bent plate 102 is angled 104 at 120°; where 8 equal walls are contemplated, the bent plate 102 is angled 104 at 135°, etc.). In other embodiments, a flat plate 100 can be used to secure the horizontal board 105 to the vertical column 110, the inner and outer vertical column 110 used to create a wall.
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(28) In one preferred embodiment the horizontal stiffeners 106 are 2″×4″×10′, and the vertical stiffeners 107 are 2″×4″×8.5″. In some embodiments the stiffeners 106 and 107 is made of wood. Other materials may be used for the studs 106 and 107 such as plastics, synthetics, epoxies, rubbers, resins, metals, and the like, and do not depart from the scope of the invention.
(29) As shown in
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(31) The apertures 103 provided in the bent plate may be used with screws, nails, or the like, as in many embodiments of the present invention. Alternatively, other means of adhering two vertical studs 124 and 125 at a desired angle are contemplated and do not depart from the scope of the invention. Moreover, nailing positions 111 capable of accepting protrusions to anchor horizontal boards 105 are provided on the outward facing side of the vertical column 110. In some embodiments, the nailing positions 111 receive double headed nails. In one preferred embodiment, the nailing positions 111 are spaced at 1 foot and receive 3″ double headed nails.
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(34) In some embodiments, it is contemplated that the wet, uncompacted earthen mixture 113 can be formulated with such low water (aqueous) content such that the earthen mixture 113 will require no dry time where properly compacted. For other mixtures or environments, sufficient dry time will vary from 0-5 days. Once the earthen mixture is dried or compacted 121 (dried or compacted earthen mixture), the horizontal boards 105 may be moved vertically by the same height as the sufficiently dried earthen mixture 121. In preferred embodiments, the lower horizontal board 105 is removed and placed above the upper horizontal board 105 after the earthen mixture 113 is sufficiently dry. The apertures with double headed nails 111 serving as a platform to support the horizontal boards 105 in their next forming position. In an exemplary embodiments, the lower horizontal board 105 will be removed from the base position relative to the vertical columns 110 and placed above the upper horizontal board 105 and sufficiently dried earthen mixture 121 in a sequential way each time that the horizontal and vertical based forms (110 and 105) are filled and compacted. As shown in
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(36) In some embodiments the bolt 116 is secured by 1″ washers 115. In some embodiments, the threaded rod 117 comprises metal. In other embodiments the threaded rod 117 can comprise plastics, resins, epoxies, woods, natural structural materials, synthetic structural materials, and the like. In one preferred embodiment, the vertical column 110 is bolted 116 right at the 2″×4″×18″ jigs 114 using ⅛″ thick of one inch in diameter washer 115 on either side of the vertical columns 110. The same procedure is may be repeated 6′ and 9′ from the base of the vertical columns 110, as in one preferred embodiment. The jigs 114 are removed as the earthen composite dries and do not remain in the structure. The threaded rods 117 remain as the earthen composite structure is formed, and may be removed after the structure is complete.
(37) Moreover, in the preferred embodiment, a jig 118 as shown in
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(41) The horizontal boards 105 are initially placed using the apertures with double headed nails 111 to a new vertical position, and are then secured by the fastening of plates 100 to the horizontal boards 105 and adjacent vertical columns 110 creating a new interstitial space to be filled with more earthen composite 113. Once deposited, the earthen mixture is left to sufficiently dry 121. As in other preferred embodiments, the earthen mixture 113 may be compacted to eliminate drying time 121. This process is repeated vertically, until a desired height of the wall is achieved. Where a multiplicity of walls are needed for a structure, horizontal boards 105 at an inner and outer position are provided at each corner on the same horizontal plane. As such, a complete level of horizontal earthen composite 113 is achieved at each drying time point.
(42) Drying time points of the earthen mixture 113 are achieved in relation to water content of the earthen mixture, and the environment in which the structure is being build. In some embodiments, a low water with compaction will allow the earthen mixture 113 to be ready for the next cycle. While an arid environment may let a similar earthen composite 113 dry in 1 day, the same earthen composite 113 may need 6 days to sufficiently dry to proceed with the next cycle. Those of skill in the art are aware of the environmental and water content levels and dry time of earthen composites. Moreover, in a preferred embodiment, the earthen composite is Cob, or earthen mix with water content.
(43) The upper pole connecting studs 112 as seen in
(44) Similarly,
(45) Moreover, as is consistent with one embodiment of the present invention, once the entire earthen composite wall is complete, the horizontal boards 105 with their horizontal 106 and vertical 107 stiffeners, the vertical columns 110, upper pole connecting studs 112, top plate 119, and all materials including the placed threaded rods 117, may be dismantled and removed, and further used for framing, shelving, trimming of the inner space with the intent of recycling and minimizing waste. All supporting materials will be removed, including the vertical columns 110.
(46) The earthen composite structural forming system may be packaged as kit, furthering the simplicity in execution for such structural dwellings.
(47) While the compositions and methods of this disclosure have been described in terms of particular embodiments, it will be apparent to those of skill in the art that variations may be applied to the structures and/or methods and in the steps or in the sequence of steps of the method described herein without departing from the concept, spirit and scope of the disclosure. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and concept of the disclosure as defined by the appended claims. It will be understood that embodiments described herein are shown by way of illustration and not as limitations of the disclosure.
(48) The principal features of this disclosure can be employed in various embodiments without departing from the scope of the disclosure. Those skilled in the art will recognize, or can ascertain using no more than routine study, numerous equivalents to the specific structures described herein. Such equivalents are within the scope of this disclosure and are covered by the claims. All publications and patent applications mentioned in the specification are indicative of the level of skill of those skilled in the art to which this disclosure pertains. All publications and patent applications are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.
Example 1
(49) An kit and Itinerary is based on a 12-sided building of 12-foot maximum height and square footage of approximate 1,500 SF, the kit comprising: 1. 2″×12″×12′ light weight wooden board (Spruce is what we used). Total of 50. 48 for the double raw of the horizontal boards and 2 board to be dimensioned at 2′ length and nailed on the top of the 12 columns 2. 2″×6″×16′ studs. Total of 48 for the vertical columns 3. 2″×4″×12′ studs. Total of 140. 24 of them are used to connect the upper end of the columns, 104 (96+8) are used to stiffen the horizontal boards and a final 12 to be used on temporary base to be placed between the vertical boards to assure constant thickness of the forming system 4. 8″×8″×⅛″ Aluminum plates, total of 96, all bended at 30-degree angle at the center and placed at 3-foot interval to tie the vertical pairs of 2′×6″ internal and external columns 5. 8″×8″×⅛″ Aluminum plates, total of 96 used to connect the horizontal boards to the columns 6. 2 large boxes of 10-1⅝″ star head screws, for tying all plates to the forming system 7. 2 large boxes of 10-3″ long star head screws to tie in the 2″×4″ studs to the 12′ boards for stiffening purpose 8. ¼″×2′ long zinc oxide coated threaded rods total of 48 with the corresponding double nobs and 1½″ diameter ¼″ thick washers 9. Double headed 3″ long nail to be nailed of the side of the columns at 1′ interval to assure easier fastening and proper interval rising of the horizontal boards 10. 100′×20′ plastic roll to proper the forming system from the rain when applicable 11. Two large boxes of 1″ (⅛) washers with a ¼″ opening
(50) Wherein, when used in a clay-based soil area, such as Chapel Hill, N.C., the ideal mix for the earthen composite mixture is 2 parts subsoil, one part course sand, 10-15% straw, and 5% water. Such mixture was compressively tested by making 10, 4″ diameter by 8″ tall samples, and was found to be suitable for construction of a structure employing the earthen composite forming system herein described.
(51) A pit was be made in the ground equivalent to 6 cubic yards, and the earthen composite mixture was dispensed into the pit with a mini-excavator. After thorough mixing with a 3 ft. wide bucket, the final earthen composite mixture was carried and delivered into the forms created with the list of items and in accordance with the preceding description using the mini-excavator.
(52) A 9″ thick earthen composite mixture was leveled through the entire perimeter of the forming system, and was compacted (mechanically or manually) to 6″. The same application was repeated 6″ at a time. Every 2 lifts, the lower horizontal board was moved upward in an alternating fashion. Threaded rods were lifted every 2 feet to assure containment and consistent wall thickness. The procedure was repeated until the wall was complete. Based on geological, seismic, wind, and snow loaded further reinforcement, and should be considered by an assigned engineer. In this example, bamboo, rebar, and other reinforcements were applied.