• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Reinforced concrete; comprising aggregates, cement, water, and optionally additives; and a strength improver constituted by basalt fibers distributed by the concrete mass. Said basalt fibers have a length comprised between 6 and 12 millimeters and a thickness equal to or less than 100 microns. The amount of basalt fibers is between 0.5 and 1 kg of basalt fiber per cubic meter of concrete for lightweight concrete and is equal to or less than 50 kg of basalt fiber per cubic meter of concrete in the case of heavy concretes. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2551762A1
    申请号:ES201430744
    申请日:2014-05-21
    公开日:2015-11-23
    发明作者:Ismael MATEU SERRAVIÑALS
    申请人:Gestion de Propiedad Industrial Bibel SL；
    IPC主号:
    专利说明:

    DESCRIPTION



    Reinforced concrete. 5

    Object of the invention.

    The object of the present invention is a reinforced concrete which, including a series of customary components such as aggregates, cement, water and optionally additives, has the particularity of incorporating basalt fiber in its composition in determined proportions to improve concrete strength and its behavior against diverse external elements.
     fifteen
    Field of application of the invention.

    This invention is applicable in the construction of civil works objects, the reconstruction of bank deposits and safes, the construction of bridges, airfield runways, hydroelectric installations, 20 road coatings, removable and monolithic plates, sidewalk tiles and in general any other product or construction usually made with reinforced concrete.

    State of the art 25

    The cement stone, due to its physical-mechanical characteristics, has a resistance to bending or curvature practically ten times less than the compressive strength.
     30
    For this reason in all types of works it is a common practice to use reinforced concrete with meshes or steel structures.

    The use of these iron reinforcements, it is true that increasing the strength of the concrete does not satisfactorily solve other problems such as the problems of oxidation of the reinforcement or the deterioration of the concrete due to the penetration into it of antifreeze salts and other aggressive substances that they are frequently applied on the concrete coverings of 5 roads.

    An additional drawback determined by the use of these metal reinforcements is the increase in the time of execution of the work due to the need to place and tie "in situ" of the bars and forming structures 10 of the assembly, before pouring the concrete .

    The applicant of the present invention is unaware of the existence of a history of reinforced concrete that improves the strength and behavior of concrete and eliminates the problems involved in the use of the metal reinforcements mentioned above.

    Description of the invention

    The reinforced concrete object of this invention, comprising about 20 common components such as aggregates, cement, water, and optionally additives, has the particularity of incorporating a strength improver based on basalt fibers distributed throughout the concrete mass, forming a reinforcement that changes the behavior of concrete, increasing the resistance to cracking, breaking and curvature loads and elasticity at impact, preserving the integrity of the construction until after the appearance of through cracks.

    The amount of basalt fiber incorporated into the concrete may vary depending on the type of concrete (light or heavy) to be used. 30

    In order to obtain an optimum performance and improved properties of this reinforced concrete, the amount of basalt fiber is expected to be
    Light concrete is between 0.5 and 1 kg of basalt fiber per cubic meter of concrete.

    In the case of heavy concrete, the amount of basalt fiber to be included in the concrete mass can be increased up to 50 kg of basalt fiber per 5 cubic meter of concrete.

    Using the aforementioned proportions of basalt fibers, it has been observed that the compressive strength of concrete has increased up to 20% and the curvature distension up to 7 times, cold resistance up to 2 times and a considerable increase in stability Against the formation of cracks.

    Basalt fiber improves impact elasticity indexes, fire safety, thermal stability, deformation losses and considerably increases material life. fifteen

    These basalt fibers incorporated into the concrete provide three-dimensional consolidation of the concrete compared to the traditional metal reinforcement that provides only two-dimensional reinforcement.
     twenty
    The concrete structure with the application of basalt fibers is close to the reinforced concrete structure reinforced with steel net reinforcement. However, concrete reinforced with basalt fibers has a higher strength and deformability, since the basalt that assembles it provides a higher degree of dispersion of the reinforcement and in addition the basalt 25 itself has a higher solidity than the net of steel.

    This concrete reinforced with basalt fibers is able to withstand large elastic deformations since the basaltic fiber does not have the plastic deformations at the strain of the steel and, by the elasticity exceeds the steel. 30

    During the hardening of the cement stone an aggressive medium is formed that destroys the surface of the fiber forming small hairs that increase the
    solidity of the hitch between basalt fibers and concrete increasing the strength of the product.

    According to the invention, basalt fibers have a thickness equal to or less than 100 microns, since the use of fat basalt fibers, of more than 100 microns, does not change their strength.

    The main features of the reinforced concrete of the invention are its high strength to all types of stress states and the ability to withstand large deformations in an elastic state. 10

    In addition, the relative deformation of the concrete stone without cracking reaches 0.7-0.9%, which exceeds between 35 and 45 times the maximum elongation of cement or unarmed concrete.
     fifteen
    In the tests carried out on road and road coverings, with reinforced concrete with cut basalt fiber it has been found that its load capacity increases between 15% and 17%.

    An additional advantage of this concrete reinforced with basalt fibers in 20 road coverings is that basalt fiber protects the concrete and reinforcement from the penetration of antifreeze salts and other aggressive chemicals, also increasing residual strength and cycle stability. of freezing / thawing, and increases the roughness of the surface.
     25
    The use of quality concrete reinforced with basalt monofibers provides other advantages, including: firmness to temperature fluctuations, protecting the surface from breakage, cracking and exfoliation; excludes plastic cracks and shrinkage cracks, increases the duration of the surface, edge and seam, increases firmness to wear and bumps 30 and provides early compression strength, that is, the strength that regular concrete acquires Only in 28 days from the moment of placement.

    Other advantages of this concrete reinforced with basalt fibers is that the thickness can be reduced by up to half of the layer of concrete commonly used in certain applications such as concrete floors, airport runways, highways, industrial floors, interior reinforcements of tunnels and channels, etc. 5 also reducing construction deadlines by eliminating the need to establish metal reinforcements, which together provides a significant reduction in the total cost of the works.

    The use of basalt fibers in the assembly of sparkling or gaseous concrete commonly used in the manufacture of paving stones and sidewalk tiles provides a series of physical-technical advantages, such as a 90% reduction in the amount of cracks per shrinkage, reduction of damage to the corners and edges during the packing, transport and storage of the pieces already made reducing up to 3% the deterioration produced during transport; 15 shortening of the primary and final hardening time of sparkling-gaseous concretes and as a consequence the increase of the rotation cycle, increase of freezing stability since basalt fiber is not destroyed under the action of temperature changes (heating -cooling); greater fire resistance which decreases the risk of explosive chipping of concrete during a fire.

    According to the invention, the length of the basalt fibers used in the reinforced concrete is between 6 and 12 millimeters since within these dimensions the basalt fibers allow a practically homogeneous distribution in the concrete mass and provide an increase notable properties of concrete compared to the use of basalt fibers of a length greater or less than the mentioned values between 6 and 12 millimeters.
     30
    Preferred embodiment of the invention.

    Once the nature of the invention has been sufficiently described, as well as a
    For example, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the elements described may be modified, provided that this does not imply an alteration of the essential features of the invention claimed below.
     5
    权利要求:
    Claims (5)
    [1]

    1.- Reinforced concrete; comprising aggregates, cement, water, and optionally additives; characterized in that it comprises a strength improver constituted by basalt fibers distributed by the concrete mass. 5

    [2]
    2. Concrete according to claim 1, characterized in that the basalt fibers have a length between 6 and 12 millimeters.

    [3]
    3. Concrete according to any one of the preceding claims, characterized in that the basalt fibers have a thickness equal to or less than 100 microns

    [4]
    4. Concrete according to any one of claims 1, 2 and 3, characterized in that it is a lightweight concrete and the amount of basalt fibers 15 included therein is comprised between 0.5 and 1 kg of basalt fiber per cubic meter of concrete.

    [5]
    5. Concrete according to any one of claims 1, 2 and 3, characterized in that it is a heavy concrete and the amount of basalt fibers 20 included therein is equal to or less than 50 kg of basalt fiber per cubic meter. of concrete.

    25
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    同族专利:
    公开号 | 公开日
    ES2551762B1|2016-09-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2667402C1|2017-08-24|2018-09-19|Федеральное государственное бюджетное образовательное учреждение высшего образования "Томский государственный архитектурно-строительный университет" |Method for preparation of basalt-fiber-concrete mixture|
    法律状态:
    2016-09-12| FG2A| Definitive protection|Ref document number: 2551762 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160912 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201430744A|ES2551762B1|2014-05-21|2014-05-21|Reinforced concrete|ES201430744A| ES2551762B1|2014-05-21|2014-05-21|Reinforced concrete|
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