US3400507A - Structural members with preformed concrete reinforcing devices - Google Patents

Structural members with preformed concrete reinforcing devices Download PDF

Info

Publication number
US3400507A
US3400507A US578620A US57862066A US3400507A US 3400507 A US3400507 A US 3400507A US 578620 A US578620 A US 578620A US 57862066 A US57862066 A US 57862066A US 3400507 A US3400507 A US 3400507A
Authority
US
United States
Prior art keywords
reinforcing devices
concrete
reinforcing
rod
structural members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US578620A
Inventor
Chester M Macchesney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELLAMAC Inc
Original Assignee
ELLAMAC Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ELLAMAC Inc filed Critical ELLAMAC Inc
Priority to US578620A priority Critical patent/US3400507A/en
Application granted granted Critical
Publication of US3400507A publication Critical patent/US3400507A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/48—Metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/012—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal

Definitions

  • a strucutral member including a concrete mass having a plurality of individual reinforcing devices suspended in and distributed through the concrete mass; the reinforcing devices are of preformed construc tion and each comprises an elongated metal rod carrying a cement body enveloping the intermediate portion thereof and firmly adhered thereto, the cement body being in spool form with alternate areas of lesser and greater diameters and being formed essentially of set-up Portland cement.
  • the present invention relates to structural members, and more particularly to such members formed essentially of a mass of concrete and a plurality of individual reinforcing devices suspended therein and distributedtherethrough, wherein the reinforcing devices are substantially identical and each of improved construction and arrangement.
  • each of the reinforcing devices is of preformed construction and comprises an elongated metal rod and a cement body enveloping the intermediate portion of the rod and firmly adhered thereto.
  • Another object of the invention is to provide an improved reinforcing device of the character noted that is prefabricated from scrap material obtained from a rod or strap mill, whereby the rod or strap incorporated into the device has any suitable cross-section, as may be obtained by chance from the mill, such, for example, as a square, a circle, an oval, a rectangle, etc., and corresponding to any shape normally produced at the mill.
  • FIGURE 1 is a fragmentary sectional view of a structural member in the form of a block and comprising a concrete mass embedding a plurality of individual reinforcing devices and embodying the present invention
  • FIG. 2 is a reduced fragmentary sectional view of another structural member in the form of a wall and an arch and also embodying the present invention.
  • FIG. 3 is a greatly enlarged perspective view of one of the individual reinforcing devices of the construction and arrangement as incorporated in the structural members noted.
  • the structural member there illustrated and embodying the features of the present invention is in the form of a block that comprises a concrete mass 11, and a plurality of individual reinforcing devices 30 suspended in and distributed through the concrete mass 11.
  • Each of the reinforcing devices 30 is of preformed construction and of elongated 3,400,507 Patented Sept. 10, 1968 form; and in the concrete mass 11 the axes of the reinforcing devices 30 are directionally distributed at random, so as completely to reinforce and thoroughly to interlock all parts of the concrete mass 11.
  • the structural member 20 there illustrated is in the form of a wall and arch section that comprises a concrete mass 21, and a plurality of the individual reinforcing devices 30 suspended in and distributed through the concrete mass 21.
  • Each of the reinforcing devices 30 is of preformed construction and of elongated form; and in the concrete mass 21, the axes of the reinforcing devices 30 are directionally distributed at random, so as completely to reinforce and thoroughly to interlock all parts of the concrete mass 21.
  • each of the reinforcing devices 30 is of preformed construction and comprises an elongated metal rod 31, and a cement body 32 enveloping and embedding the intermediate portion of the rod 31 and firmly adhered thereto.
  • the rod 31 may have any convenient lateral cross-section, since it is preferably formed of scrap material obtained from a rod or strap mill, and is ordinarily formed of steel. Specifically, scrap rod or strap stock obtained from a mill is cut into suitable lengths to form the rods 31; the rods 31 are placed into suitable molds; and the cement bodies 32 are respectively cast upon the intermediate portions of the rods 31.
  • the body 32 is of spool-like configuration since this geometry provides great interlocking effects to the adjacent volumes or portions of the embedding concrete masses 11 or 21 in the respective structures 10 and 20.
  • the body 32 is formed of neat cement that consists essentially of Portland cement that has been set-up with water, and without any content of aggregate.
  • the body may be formed of mortar and consists essentially of Portland cement and fine aggregate (sand) that has been set up with water, and
  • the rod 31 has a variable configuration depending upon the character of the scrap rod or strap obtained from the mill and employed in the manufacture of the reinforcing device 30; whereby the lateral cross-section of the rod may be square, circular, rectangular, etc., in an obvious manner.
  • the rod 31 is formed of V square coldrolled steel stock, and has an overall length of about 7%".
  • the body 32 has a maximum diameter of about 1" and a minimum diameter of about and an overall length of about 2%
  • the body 32 is formed of. neat cement, as noted above.
  • This construction and arrangement of the reinforcing device 30 is very advantageous by virtue of the fact that the same permits of the production of concrete by treating the reinforcing devices 30 as a part of the coarse aggregatee, along with the gravel.
  • the reinforcing devices 30 and the gravel are treated commonly as coarse aggregate; and the proportion thereof by volume is treated entirely as a matter of predetermining the desired reinforcement of the concrete.
  • the coarse aggregate may comprise the reinforcing devices 30 and gravel in a proportion of about 50%50% by volume. However, this ratio may be appropriately varied depending upon the desired reinforcement of the set-up concrete in the structures and 20.
  • this construction and arrangement of the preformed reinforcing devices 30 is very advantageous, since there is no substantial settling-down of the reinforcing devices 30 in the poured concrete of the masses 11 and 12 prior to setting-up thereof.
  • This advantage permits of the direct pouring of the mixed concrete into the forms without danger of settling-down of the reinforcing devices 30 dispersed through the mixed concrete; whereby the reinforcing devices 30 are suitably distributed through the masses 11 and 21 after settingup of the concrete.
  • a reinforced structural member consisting essentially of a concrete mass and a plurality of short sections of steel bars or straps suspended in and substantially uniformly distributed through the concrete mass.
  • a structural member including a concrete mass, and a plurality of individual reinforcing devices suspended in and distributed through said concrete mass;
  • each of said reinforcing devices is of preformed construction and comprises an elongated metal rod and a cement body enveloping the intermediate portion of said metal rod and firmly adhered thereto, said body being of generally spool-type configuration and including alternate areas of lesser and greater diameters along said rod.
  • a reinforcing device for incorporation in a structural member including a concrete mass and a plurality of the reinforcing devices suspended in and distributed throughout the concrete mass, the reinforcing device comprising an elongated metal rod, and a cement body enveloping the intermediate portion of said metal rod and firmly adhered thereto, said body being of generally spool-type configuration and including alternate areas of lesser and greater diameters along said rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

16- VINE.
[ 1-O5'97. GR 304009507 EX if; M I. Sept. 10, 1968 c. M. MacCHESNEY 3,400,507 X Q1]; STRUCTURAL MEMBERS WITH PREFOHMED CONCRETE REINFORCING DEVICES Filed Sept. 12, 1966 jQl/ INVENTOR CHESTER M. MOCCHESNEY ATTYS.
United States Patent 3,400,507 STRUCTURAL MEMBERS WITH PREFORMED CONCRETE REINFORCING DEVICES Chester M. MacChesney, Chicago, Ill., assignor to Ellamac Incorporated, Chicago, III., a corporation of Illinois Filed Sept. 12, 1966, Ser. No. 578,620 7 Claims. (Cl. 52-659) ABSTRACT OF THE DISCLOSURE There is disclosed a strucutral member including a concrete mass having a plurality of individual reinforcing devices suspended in and distributed through the concrete mass; the reinforcing devices are of preformed construc tion and each comprises an elongated metal rod carrying a cement body enveloping the intermediate portion thereof and firmly adhered thereto, the cement body being in spool form with alternate areas of lesser and greater diameters and being formed essentially of set-up Portland cement.
The present invention relates to structural members, and more particularly to such members formed essentially of a mass of concrete and a plurality of individual reinforcing devices suspended therein and distributedtherethrough, wherein the reinforcing devices are substantially identical and each of improved construction and arrangement. 1
It is a general object of the invention to provide an improved structural member of the character noted, wherein each of the reinforcing devices is of preformed construction and comprises an elongated metal rod and a cement body enveloping the intermediate portion of the rod and firmly adhered thereto.
Another object of the invention is to provide an improved reinforcing device of the character noted that is prefabricated from scrap material obtained from a rod or strap mill, whereby the rod or strap incorporated into the device has any suitable cross-section, as may be obtained by chance from the mill, such, for example, as a square, a circle, an oval, a rectangle, etc., and corresponding to any shape normally produced at the mill.
Further features of the invention pertain to the particular arrangement of the elements of the structural member, whereby the above-outlined and additional operating features thereof are attained.
The invention, both as to its organization and method of operation, together with further objects and advantages thereof, will best be understood by reference to the following specification, taken in connection with the accompanying drawing, in which:
FIGURE 1 is a fragmentary sectional view of a structural member in the form of a block and comprising a concrete mass embedding a plurality of individual reinforcing devices and embodying the present invention;
FIG. 2 is a reduced fragmentary sectional view of another structural member in the form of a wall and an arch and also embodying the present invention; and
FIG. 3 is a greatly enlarged perspective view of one of the individual reinforcing devices of the construction and arrangement as incorporated in the structural members noted.
Referring now to FIG. 1 of the drawing, the structural member there illustrated and embodying the features of the present invention, is in the form of a block that comprises a concrete mass 11, and a plurality of individual reinforcing devices 30 suspended in and distributed through the concrete mass 11. Each of the reinforcing devices 30 is of preformed construction and of elongated 3,400,507 Patented Sept. 10, 1968 form; and in the concrete mass 11 the axes of the reinforcing devices 30 are directionally distributed at random, so as completely to reinforce and thoroughly to interlock all parts of the concrete mass 11.
Referring now to FIG. 2, the structural member 20 there illustrated is in the form of a wall and arch section that comprises a concrete mass 21, and a plurality of the individual reinforcing devices 30 suspended in and distributed through the concrete mass 21. Each of the reinforcing devices 30 is of preformed construction and of elongated form; and in the concrete mass 21, the axes of the reinforcing devices 30 are directionally distributed at random, so as completely to reinforce and thoroughly to interlock all parts of the concrete mass 21.
Referring now to FIG. 3 each of the reinforcing devices 30 is of preformed construction and comprises an elongated metal rod 31, and a cement body 32 enveloping and embedding the intermediate portion of the rod 31 and firmly adhered thereto. The rod 31 may have any convenient lateral cross-section, since it is preferably formed of scrap material obtained from a rod or strap mill, and is ordinarily formed of steel. Specifically, scrap rod or strap stock obtained from a mill is cut into suitable lengths to form the rods 31; the rods 31 are placed into suitable molds; and the cement bodies 32 are respectively cast upon the intermediate portions of the rods 31. As illustrated, the body 32 is of spool-like configuration since this geometry provides great interlocking effects to the adjacent volumes or portions of the embedding concrete masses 11 or 21 in the respective structures 10 and 20. Preferably, the body 32 is formed of neat cement that consists essentially of Portland cement that has been set-up with water, and without any content of aggregate. However, if desired, the body may be formed of mortar and consists essentially of Portland cement and fine aggregate (sand) that has been set up with water, and
Parts Portland cement 1 Sand 2 Gravel 4 Suitable quantity of water.
Ordinarily, about 6 gallons of water are mixed with each pounds of these dry ingredients after thorough I mixing thereof.
Returning to the construction of the reinforcing device 30, the rod 31 has a variable configuration depending upon the character of the scrap rod or strap obtained from the mill and employed in the manufacture of the reinforcing device 30; whereby the lateral cross-section of the rod may be square, circular, rectangular, etc., in an obvious manner.
In a constructional example of the reinforcing device 30, the rod 31 is formed of V square coldrolled steel stock, and has an overall length of about 7%". The body 32 has a maximum diameter of about 1" and a minimum diameter of about and an overall length of about 2% In this example, the body 32 is formed of. neat cement, as noted above.
This construction and arrangement of the reinforcing device 30 is very advantageous by virtue of the fact that the same permits of the production of concrete by treating the reinforcing devices 30 as a part of the coarse aggregatee, along with the gravel. In other words, in producing the concrete that is employed in casting the masses 11 and 21, the reinforcing devices 30 and the gravel are treated commonly as coarse aggregate; and the proportion thereof by volume is treated entirely as a matter of predetermining the desired reinforcement of the concrete. Ordinarily, the coarse aggregate may comprise the reinforcing devices 30 and gravel in a proportion of about 50%50% by volume. However, this ratio may be appropriately varied depending upon the desired reinforcement of the set-up concrete in the structures and 20.
Further, this construction and arrangement of the preformed reinforcing devices 30 is very advantageous, since there is no substantial settling-down of the reinforcing devices 30 in the poured concrete of the masses 11 and 12 prior to setting-up thereof. This advantage permits of the direct pouring of the mixed concrete into the forms without danger of settling-down of the reinforcing devices 30 dispersed through the mixed concrete; whereby the reinforcing devices 30 are suitably distributed through the masses 11 and 21 after settingup of the concrete. This advantage of the construction of the reinforcing devices 30 results from the facts that the overall specific gravity of the reinforcing device 30 is not materially greater than that of the fluid ingredients of the poured concrete, and that the body 32 of the reinforcing device 30 acts as a buoy therefor in the fluid ingredients of the poured concrete since the specific gravity of the body 32 is somewhat less than that of the fluid ingredients of the poured concrete. Furthermore, the configuration of the body 32 prevents any material turning or orienting of the axis of the rod 31 in the poured concrete with the result that upon setting-up of the poured concrete the axes of the rods 31 are directionally distributed at random through the concrete masses 11 and 21, whereby the reinforcement of the structures 10 and is highly uniform and altogether satisfactory.
In view of the foregoing, it is apparent that there has been provided a reinforced structural member consisting essentially of a concrete mass and a plurality of short sections of steel bars or straps suspended in and substantially uniformly distributed through the concrete mass.
While there has been described what is at present considered to be the preferred embodiment of the invention, it will be understood that various modifications may be made therein, and it is intended to cover in the appended claims all such modifications as fall within the true spirit and scope of the invention.
What is claimed is:
1. In a structural member including a concrete mass, and a plurality of individual reinforcing devices suspended in and distributed through said concrete mass; the
combination wherein each of said reinforcing devices is of preformed construction and comprises an elongated metal rod and a cement body enveloping the intermediate portion of said metal rod and firmly adhered thereto, said body being of generally spool-type configuration and including alternate areas of lesser and greater diameters along said rod.
2. The structural member set forth in claim 1, wherein the axes of said rods are directionally distributed at random throughout said concrete mass.
3. The structural member set forth in claim 1, wherein said metal rod is formed essentially of steel, and said cement body is formed essentially of set-up Portland cement.
4. The structural member set forth in claim 1, wherein the overall specific gravity of said reinforcing devices is not materially greater than that of the fluid ingredients of the poured concrete from which said concrete mass is formed.
5. A reinforcing device for incorporation in a structural member including a concrete mass and a plurality of the reinforcing devices suspended in and distributed throughout the concrete mass, the reinforcing device comprising an elongated metal rod, and a cement body enveloping the intermediate portion of said metal rod and firmly adhered thereto, said body being of generally spool-type configuration and including alternate areas of lesser and greater diameters along said rod.
6. The reinforcing device set forth in claim 5, wherein said metal rod is formed essentially of steel and said cement body is formed essentially of set-up Portland cement.
7. The reinforcing device set forth in claim 5, wherein the overall specific gravity of said reinforcing device is not materially greater than that of the fluid ingredients from which the associated concrete mass is formed.
References Cited UNITED STATES PATENTS 1,308,306 7/1919 Stewart S2587 X 1,350,335 8/1920 Reed 52-688 1,976,832 10/1934 Brown 52--659 2,677,955 5/1954 Constantinesco 52-659 FOREIGN PATENTS 538,089 3/ 1922 France.
693,287 6/1953 Great Britain.
743,129 1/1956 Great Britain.
HENRY C. SUTHERLAND, Primary Examiner.
ALFRED C. PERHAM, Assistant Examiner.
US578620A 1966-09-12 1966-09-12 Structural members with preformed concrete reinforcing devices Expired - Lifetime US3400507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US578620A US3400507A (en) 1966-09-12 1966-09-12 Structural members with preformed concrete reinforcing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US578620A US3400507A (en) 1966-09-12 1966-09-12 Structural members with preformed concrete reinforcing devices

Publications (1)

Publication Number Publication Date
US3400507A true US3400507A (en) 1968-09-10

Family

ID=24313618

Family Applications (1)

Application Number Title Priority Date Filing Date
US578620A Expired - Lifetime US3400507A (en) 1966-09-12 1966-09-12 Structural members with preformed concrete reinforcing devices

Country Status (1)

Country Link
US (1) US3400507A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855742A (en) * 1970-07-23 1974-12-24 Texas Dynamatics Apparatus for prestressing a structural member
US3950905A (en) * 1972-04-26 1976-04-20 Jeter John D Method for prestressing a structural member
US4040220A (en) * 1973-07-25 1977-08-09 Battelle Development Corporation Concrete joints
WO1987004208A1 (en) * 1986-01-14 1987-07-16 Nill, Werner Process for producing concrete consisting of cement, aggregate and water, a tension-resisting concrete and a concrete reinforcing element
EP0229416A1 (en) * 1985-12-30 1987-07-22 N.V. Bekaert S.A. Reinforcing member for cementitious material
EP0280852A2 (en) * 1987-03-04 1988-09-07 Bode-Panzer AG Wall or wall element for safety devices such as vaults, safety doors, safes or the like
US5404688A (en) * 1993-11-03 1995-04-11 Greaves; William S. Matrix for reinforcing concrete
US5419965A (en) * 1990-06-01 1995-05-30 Domecrete Ltd. Reinforcing element with slot and optional anchoring means and reinforced material incorporating same
EP0712972A1 (en) * 1994-11-04 1996-05-22 Horst Dr.-Ing. Kinkel Reinforced concrete element
US5741589A (en) * 1996-03-27 1998-04-21 The Forestry And Forest Products Research Instiute Construction material made of woody material and mortar
US5840226A (en) * 1996-03-28 1998-11-24 The Forestry And Forest Products Research Institute Manufacturing method for a construction material made of woody material and mortar
WO2008095211A1 (en) * 2007-02-05 2008-08-14 Stefan Lothar Burtscher Disc-shaped body for fibres

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1308306A (en) * 1919-07-01 steward
US1350335A (en) * 1920-04-23 1920-08-24 George H Reed Support for reinforcing-rods
FR538089A (en) * 1921-07-09 1922-06-03 hollow elements in reinforced cement or others, replacing pebbles in the manufacture of lightweight concrete
US1976832A (en) * 1932-08-12 1934-10-16 Charles S Brown Concrete wall and reenforcing insert therefor
GB693287A (en) * 1950-04-18 1953-06-24 Concrete Patents Ltd Improvements in or relating to reinforced concrete elements
US2677955A (en) * 1943-02-12 1954-05-11 Constantinesco George Reinforced concrete
GB743129A (en) * 1952-12-01 1956-01-11 William Griffiths & Co Ltd Improvements in or relating to the supporting of reinforcing bars and rods in the manufacture of concrete products

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1308306A (en) * 1919-07-01 steward
US1350335A (en) * 1920-04-23 1920-08-24 George H Reed Support for reinforcing-rods
FR538089A (en) * 1921-07-09 1922-06-03 hollow elements in reinforced cement or others, replacing pebbles in the manufacture of lightweight concrete
US1976832A (en) * 1932-08-12 1934-10-16 Charles S Brown Concrete wall and reenforcing insert therefor
US2677955A (en) * 1943-02-12 1954-05-11 Constantinesco George Reinforced concrete
GB693287A (en) * 1950-04-18 1953-06-24 Concrete Patents Ltd Improvements in or relating to reinforced concrete elements
GB743129A (en) * 1952-12-01 1956-01-11 William Griffiths & Co Ltd Improvements in or relating to the supporting of reinforcing bars and rods in the manufacture of concrete products

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855742A (en) * 1970-07-23 1974-12-24 Texas Dynamatics Apparatus for prestressing a structural member
US3950905A (en) * 1972-04-26 1976-04-20 Jeter John D Method for prestressing a structural member
US4040220A (en) * 1973-07-25 1977-08-09 Battelle Development Corporation Concrete joints
EP0229416A1 (en) * 1985-12-30 1987-07-22 N.V. Bekaert S.A. Reinforcing member for cementitious material
WO1987004208A1 (en) * 1986-01-14 1987-07-16 Nill, Werner Process for producing concrete consisting of cement, aggregate and water, a tension-resisting concrete and a concrete reinforcing element
EP0280852A3 (en) * 1987-03-04 1988-09-21 Bode-Panzer AG Wall or wall element for safety devices such as vaults, safety doors, safes or the like
EP0280852A2 (en) * 1987-03-04 1988-09-07 Bode-Panzer AG Wall or wall element for safety devices such as vaults, safety doors, safes or the like
US5419965A (en) * 1990-06-01 1995-05-30 Domecrete Ltd. Reinforcing element with slot and optional anchoring means and reinforced material incorporating same
US5404688A (en) * 1993-11-03 1995-04-11 Greaves; William S. Matrix for reinforcing concrete
EP0712972A1 (en) * 1994-11-04 1996-05-22 Horst Dr.-Ing. Kinkel Reinforced concrete element
US5741589A (en) * 1996-03-27 1998-04-21 The Forestry And Forest Products Research Instiute Construction material made of woody material and mortar
US5840226A (en) * 1996-03-28 1998-11-24 The Forestry And Forest Products Research Institute Manufacturing method for a construction material made of woody material and mortar
US6010585A (en) * 1996-03-28 2000-01-04 The Forestry And Forest Products Research Institute Manufacturing apparatus for a construction material made of woody material and mortar
WO2008095211A1 (en) * 2007-02-05 2008-08-14 Stefan Lothar Burtscher Disc-shaped body for fibres

Similar Documents

Publication Publication Date Title
US3400507A (en) Structural members with preformed concrete reinforcing devices
US3616589A (en) Fiber reinforced concrete
US4224377A (en) Reinforcing member for castable material and process of mixing reinforcing elements with said material
DE602004007687T2 (en) METAL FIBER CONCRETE
EP2602237A2 (en) Mineral foam, method for producing the same, and a device for carrying out the said method
DE10314879A1 (en) Lightweight concrete and process for its manufacture
US5404688A (en) Matrix for reinforcing concrete
JPH0742305A (en) Centrifugally formed steel pipe concrete pillar and manufacture thereof
SU51838A1 (en) Building element
DE822600C (en) Scarf stone for the production of walls
DE812000C (en) Formwork-free reinforced concrete ceiling
JPH0665988A (en) Reinforced-concrete columnar body and manufacture thereof
WO1987004208A1 (en) Process for producing concrete consisting of cement, aggregate and water, a tension-resisting concrete and a concrete reinforcing element
JPH0575708B2 (en)
RU2030530C1 (en) Dispersed reinforcement for concrete articles
WO2023282216A1 (en) Concrete pouring method
JPS6049731B2 (en) Manufacturing method of steel pipe concrete pile
JPS6035700Y2 (en) reinforced concrete column
CN208072627U (en) A kind of sandwich node in beam column space using steel pipe with panel assembly
AT163319B (en) Reinforcement underlay
JP2569020Y2 (en) Half precast members for columns
SU450016A1 (en) The method of manufacture of the product
DE2718236A1 (en) Colloidal water-cement mixt. made by controlled mixing process - used for mfg. building elements or coating pipes
DE2909673A1 (en) Prefabricated decorative brick lintel - has protruding support anchor bars let into end faces
JP2991522B2 (en) Precast concrete board