Ability of the material to deform temporary character. The material with a high module of elasticity is rigid, and material with a low modulus of elasticity is soft.
Material | elastic modulus |
---|---|
GRC | 45-60 kg per 1 cm² |
gypsum | 25-90 kg per 1 cm² |
concrete | 15-20 kg per 1 cm² Low tensile strength. Tension-free concrete does not work for tension. One of the properties of concrete is creep, it is because of it that the deformation increases with force. If the force is increased, deformation becomes irreversible. A further increase in the load leads to the destruction of the object. |
brick | 27 kg per 1 cm² It is a small-piece construction material, the walls erected from it require a longer installation time, this leads to additional costs, increases the construction period. |
porcelain stoneware | 200 kg per 1 cm² Ceramic granite is heavy, it has complicated installation, which requires caution, because the material is brittle - this complicates the work with it. |
marble | 56 kg per 1 cm² |
granite | 49 kg per 1 cm² |
putty for external facades | More than 20 kg per 1 cm² |
The elasticity module of the GRC is 3 times larger than that of concrete due to the content of fiberglass, 2-3 times greater than that of bricks and putty, 1.5 times greater than that of gypsum, and the same as for marble and granite.
The tensile strength and flexural strength of the GRC is 4-5 times higher than that of concrete.
This means that if ordinary concrete can withstand tensile strength of 15-20 kg per 1 cm², then the GRC can withstand force of 95 kg per 1 cm².
This makes it possible to produce hollow articles from GRC, with a thickness of the outer layer of 10-15 mm, which reduces the weight of the material and the load on the foundation of the building and the subsystem on which the cornice is hung. The price of these products is more attractive, in comparison with concrete analogues.
Reducing the load on the foundation of the building increases the service life (ensures durability) of the facility itself, the convenience of mounting the products, saving material costs (this conclusion is made from the logical chain: reducing the load on the foundation - increasing the life of the building without additional repairs - saving costs of materials for repair works).
The level of possible load that the material must withstand.
Material | compressive strength |
---|---|
GRC | 378 kg/1cm² |
gypsum | 20-250 kg per 1cm² |
concrete | 35-800 kg per 1cm² |
brick | 50-300 kg per 1cm² |
porcelain stoneware | >200 kg per 1cm² |
marble | 600- 2200 kg/cm² |
granite | 1200-2500 kg/cm² |
putty for external facades | not less than 5 kg/1cm² |
The GRC has a high compressive strength: the impact strength is 10 -15 times higher than that of concrete of the brands M 15, M 35, 6 times larger than that of concrete - M 45, 5 times greater than that of concrete - M 75 , 4 times more than for concrete - M 100, 3 times more than for concrete - M 150.
This means that, due to the use of fiber, the material will withstand the load from the outside, with greater strength than concrete in concrete and reinforced concrete structures of bridges, aerodrome and road surfaces subject to dynamic and shock loads.
Lack of operating costs, saving money.
The property of the material is saturated with water, withstands alternating freezing and thawing, during which capillary penetration of water into the voids of the material occurs, its further freezing, expansion of crystalline ice and increase in pressure in the material.
Thus, frost resistance is the ability of a material to resist temperature changes.
Material | frost resistance |
---|---|
GRC | >300 cycles |
gypsum | 25 cycles |
concrete | 50-500 cycles |
brick | 15-50 cycles |
porcelain stoneware | >150 cycles |
marble | 300 cycles |
granite | 300 cycles granite practically does not absorb moisture (water absorption coefficient - 0.05-0.17%), so the frost resistance of granite is high |
putty for external facades | 35-100 cycles |
GRC does not lose its strength and without signs of destruction, withstands 300 cycles of freezing and thawing.
The material is less prone to temperature changes, which is characterized by the absence of pores and microcracks on its surface, resists penetration of water inside, and does not expand and does not cause destruction during frosts.
No need for facade reconstruction, lack of operating costs, saving money.
Material | durability |
---|---|
GRC | > 50 years |
gypsum | with limited contact of gypsum with atmospheric precipitation and open air - up to 10 years |
concrete | 50-100 years |
brick | 100 years |
porcelain stoneware | 1000 years |
marble | 20-150 years |
granite | 220-650 years |
putty for external facades | more than 25 years |
The facade of GRC does not collapse under the influence of the atmospheric environment and will remain unchanged for more than 50 years.
Durability is determined indirectly, according to the test results. It is a brand for frost resistance, a brand for watertightness, brand strength.
The higher the mark, the higher the durability of the material (GOST 10180-90 Concretes: Methods for determining the strength of control samples, GOST 12730.0-84 Concretes: General requirements for methods for determining density, moisture, water absorption, porosity and water impermeability).
For example, when icing, the facade from GRCwill remain unchanged. Products from the GRC can withstand repeated alternating freezing and thawing without visible damage.
Absence of the need for facade reconstruction in the next 50 years, lack of operating costs, saving money (according to German economists, an additional EUR 1 invested in the facade of the building leads to savings in repairing the facade in the first 5 years of operation 5 euros, for 10 years of operation - 15 euros).
The main characteristic of materials for noise protection is the sound isolation index (Rw), expressed in dB (Decibels). In order not to be heard human speech behind the wall is necessary to be not less than 50 dB.
Material | soundproofing |
---|---|
GRC | 40 dB |
gypsum | 40-45 dB |
concrete | 40-44 dB |
brick | 35-57 dB |
porcelain stoneware | 5-10 dB |
marble | 30-28 dB |
granite | 30-28 dB |
putty for external facades | 1-5 dB (layer thickness 2 cm) |
Part of the sound wave is reflected from the wall surface, and a part is absorbed passing through GRC. Sound isolation of products from GRC is higher than that of brick, porcelain stoneware, putty, marble and granite.
Good sound insulation ensures a comfortable person's health inside the room.
Thermal conductivity is property of a material to transfer heat from one surface to another, in practice it is convenient to estimate the thermal conductivity with respect to the density of the material.
Material | thermal conductivity |
---|---|
GRC | 0,6 - 0,75 W/ cm² х С |
gypsum | 0,35 W/cm²х С |
concrete | 0,7 W/cm² х С |
brick | 0,3 – 0,7 W/cm² х When the brick gets wet from the rain, its heat conductivity can increase several times, which reduces the heat-insulating parameters of the outer wall of the building |
porcelain stoneware | <3,5 W/cm² х С |
marble | 2,91 W/cm² х С Marble is not susceptible to exposure to high temperatures |
granite | 3,5 W/cm² х С |
putty for external facades | 0,2 W/cm² х С |
In the locations of installation of elements from GRC), it can increase the thermal characteristics of the structures.
This means that between the GRC element and the outer wall of the building an air layer is formed, which serves as a reliable insulation, prevents heat loss, and prevents the penetration of cold.
Reducing the cost of heating the building (there is no research in this direction, this conclusion is drawn from the logical chain: everything that is hung on the facade leads to its warming in the cold period and prevention of heating from the sun in the warm period).
Material | resistant to mold and fungus | water permeability, w |
---|---|---|
GRC | Persistent | W=6 |
gypsum | Exposed | W=4-5 |
concrete | Can be affected | W=4;6;8 |
brick | Persistent | |
porcelain stoneware | Persistent | |
marble | High durability | |
granite | High durability | |
putty for external facades | Exposedа |
GRC has water-repellent properties, water resistance is W = 6 (ability not to let water into the structure of the material under pressure).
This means that the water column, 6 meters high, will not press the 100-mm-thick GRC plate since the SOF is a fine-porous material and, with a temperature change, much less moisture enters.
On dry external walls there will be no place for mold and fungus, which will create a healthy atmosphere in the room and for many years will ensure the strength of the facade of the building.
The ability of materials to pass water vapor through their structure. The vapor-permeable material ensures the preservation of normal heat transfer. Exhaled by a person, allocated during cooking or taking baths, if there is no hood in the house, creates an increased humidity. A sign of this is the appearance of condensation on windows or on pipes with cold water, tiles, mirrors, cold surfaces. Steam, leaving the house through the wall, at the "dew point" turns into water.
Material | water vapor permeability, Mg/(m*h*Pa) |
---|---|
GRC | 0,03 |
gypsum | 0,075 |
concrete | 0,03 |
brick | 0,11-0,15 |
porcelain stoneware | 0,02 |
marble | 0,008 |
granite | 0,008 |
putty for external facades | 0,2-0,5 |
The GRC has a sufficient level of vapor permeability, allowing moisture to be passed from the room to the external environment.
Moreover, between the GRC element and the outer wall of the building an air layer is formed, which prevents the collection of moisture on the surface of the wall.
The building with a facade from the GRC is protected from penetration of dampness, the internal walls of the room will always be dry, which will ensure a healthy atmosphere in the room.
Material | resistance to cracking |
---|---|
GRC | High durability |
gypsum | Subjected to cracks |
concrete | Subjected to cracks |
brick | Subjected to cracks |
porcelain stoneware | High durability |
marble | High durability |
granite | High durability |
putty for external facades | Exposed to cracks |
GRC has a high resistance to cracking, cracking and flaking in a single piece, monoblock.
This means that facades of buildings containing architectural details from the GRC are less prone to cracking during the draft of the building than when using architectural details of concrete.
Absence of the need for facade reconstruction, lack of operating costs, saving money.
Material | Ecological compatibility (subject to the quality of production and raw materials) |
---|---|
GRC | Non-toxic |
gypsum | Non-toxic |
concrete | Non-toxic |
brick | Non-toxic |
porcelain stoneware | Non-toxic |
marble | Non-toxic |
granite | Non-toxic |
putty for external facades | Toxic |
GRC does not contain harmful components, raw materials for production: sand, cement, water and fiberglass.
GRC is a safe material for health.
It is safe for human health and the environment.
Material | Radiation quality |
---|---|
GRC | Level of radiation within the limits of the norm |
gypsum | Level of radiation within the limits of the norm |
concrete | Level of radiation within the limits of the norm |
brick | Level of radiation within the limits of the norm |
porcelain stoneware | 13 to 16 micrograms per hour. Radio active |
marble | Up to 13 mcR / hour. It is practically not radioactive, since it contains little quartz and associated rare-earth and other impurities |
granite | 25-30 microR / h. Radioactive. When heated, the radioactivity of granite increases due to the intensification of the emission from granite of radon. This should be remembered for those who are going to line fireplaces with granite. |
putty for external facades | Level of radiation within the limits of the norm |
Unlike natural stone, with granite does not serve as a source of increased radioactive background and is a safe material for health.
Safe for human health.
Fire resistance, the property of the material to resist the action of fire in a fire for a certain time.
It depends on the combustibility of the material, that is, on its ability to ignite and burn.
Material | Fire safety |
---|---|
GRC | Non-combustible material, does not ignite, does not smolder or char |
gypsum | Diffusable, flammable with great difficulty, smoldering or charring only if there is a source of fire |
concrete | Non-combustible material, does not ignite, does not smolder or char |
brick | Non-combustible material, does not ignite, does not smolder or char |
porcelain stoneware | Do not ignite |
marble | Non-combustible material, does not ignite, does not smolder or char |
granite | Non-combustible material, does not ignite, does not smolder or char |
putty for external facades | Fire hazard |
GRC is a non-combustible material (fire resistance of material is a non-combustible material), since its composition includes cement, sand, water, fiberglass.
The fire safety of the material reduces the risk of fire in front of the building. Do not need a fire certificate for the material.
Material | Resistance to chemical aggression |
---|---|
GRC | Resistant to chemical aggression, not subject to corrosion and rotting |
gypsum | Destroyed by moisture. Not resistant to chemically aggressive environments |
concrete | Not resistant to chemically aggressive environments |
brick | Not resistant to acids, which decompose hydrosilicates and calcium carbonates, cementing grains of sand, as well as against aggressive gases, vapors and dust in the air at relative humidity of more than 65% |
porcelain stoneware | Resistant to chemicals |
marble | The lack of resistance to acids (hydrochloric, citric, acetic), the ability to disintegrate under the influence of the environment. This property of marble is associated with its hygroscopicity (the ability to absorb other substances through the presence of micropores), as well as its predisposition to react with a large number of acids. |
granite | High level of chemical resistance, resistant to atmospheric effects and acids |
putty for external facades | Resistant to aggressive chemicals |
The material from GRC is not affected by the aggressive chemical environment due to its high density, since the small dimensions of the capillaries of the material provide a barrier to the effects of the chemical environment.
Absence of the need for facade reconstruction, lack of operating costs, saving money.
To absorb the energy of electromagnetic waves, traditional electrically conductive disperse (carbon black, graphite, metal particles), fibrous (carbon, metal, metallized polymeric) and magnetic (sintered ferrite plates, ferrites, carbonyl iron, etc.) fillers are used and together, forming complex composite structures.
Material | radio transparency |
---|---|
GRC | Does not degrade the radio transparency |
gypsum | Does not degrade the radio transparency |
concrete | 14,5 GHz Does not impair radio transmittance |
brick | 15 GHz Does not impair radio transmittance |
porcelain stoneware | Does not degrade the radio transparency |
marble | Does not degrade the radio transparency |
granite | Does not degrade the radio transparency |
putty for external facades | 8 GHz Does not impair radio transmittance |
The material from GRC does not interfere with the penetration of TV-waves, WI-FI waves, radio waves of mobile phones inside the room.
No interference in a room with an external facade from the SFF when using a TV, internet, mobile communication.
Material | susceptibility to corrosion |
---|---|
GRC | Not subject to corrosion |
gypsum | Not subject to corrosion |
concrete | Corrosion is subject to metal reinforcement, which is part of the concrete structure, which leads to the destruction of concrete |
brick | Not subject to corrosion |
porcelain stoneware | Not subject to corrosion |
marble | Not subject to corrosion |
granite | Not subject to corrosion |
putty for external facades | Not subject to corrosion |
With GRC there is no problem with corrosion of the reinforcement, as it is absent in the material, and unlike ordinary concrete, the GRC does not require a protective layer of reinforcement.
Absence of the need for facade reconstruction, lack of operating costs, saving money.
Material | load on the facade of the building |
---|---|
GRC | It has a low weight relative to concrete and gypsum, carries an insignificant load on the foundation (due to a thin wall of 6 - 20 mm) |
gypsum | Heavy material, increases the load on the foundation |
concrete | 300-350 kg/м2. Heavy material, increases the load on the foundation |
brick | 200-270 kg/м2. Heavy material, increases the load on the foundation |
porcelain stoneware | Heavy material, increases the load on the foundation |
marble | Heavy material, increases the load on the foundation |
granite | Heavy material, increases the load on the foundation |
putty for external facades | Has low weight |
Products from the GRC are much lighter in comparison with products made from ordinary concrete (Fig.48.) since they have a small cross-section (in the range from 6 to 20 mm).
This means that the GRC reduces the load on the construction of buildings, which allows you to obtain significant savings, both when erecting the above-ground part of buildings, and their foundations.
The ability to reduce the mass of products from the GRC in several times compared with the reinforced concrete structures, easy movement and quick installation.
Obtaining thin-walled lining elements of low mass reduces the cost of manufacturing, transportation and installation of structures, and as a result reduces the cost of building the building as a whole.
Material | Architectural expressivenessь |
---|---|
GRC | Possible any facade forms with a high degree of detail |
gypsum | Possible any facade forms with a high degree of detail |
concrete | Possible any facade forms with a high degree of detail |
brick | The possibilities of bricks are limited |
porcelain stoneware | Opportunities are limited |
marble | The possibilities of natural stone are limited in the height of the cornices, the removal of various profiles from the plane of the building, complex products. The natural stone practically does not give an opportunity to create a unique, individual appearance of the building. |
granite | The possibilities of natural stone are limited in the height of the cornices, the removal of various profiles from the plane of the building, complex products. The natural stone practically does not give an opportunity to create a unique, individual appearance of the building. |
putty for external facades | Opportunities are limited |
Increased architectural expressiveness of the GRC, unusual plasticity, absence of rigid reinforcement in the body of products gives an unlimited range of shape, the ability to acquire complex spatial forms and recreate the most unexpected for stone material outlines.
This means that the material is easily molded and reproduces any shape and profile, can transfer the smallest details.
The possibility of creating buildings using volumetric elements, curvilinear spatial configurations, non-standard design solutions, thus, the facade of the building receives a unique look and architectural expressiveness and blends harmoniously into the surrounding landscape.
The most daring design solutions can be realized. The facade of the building can have, as an acute form (Fig.49.), and the recreated traditional historical outlines.
Material | Surface texture |
---|---|
GRC | Varied surface texture |
gypsum | Varied surface texture |
concrete | Varied surface texture |
brick | no |
porcelain stoneware | no |
marble | no |
granite | no |
putty for external facades | A variety of surface textures without the use of additional architectural elements |
The material from the GRC can imitate a variety of finishing natural and artificial materials.
Glass fiber-reinforced concrete can have an exposed small filler on the front surface, a smooth or an out-of-focus surface.
The facade of the building receives a unique look, architectural expressiveness and harmoniously blends into the surrounding landscape.
The most daring design solutions can be realized.
Material | Diversity of color score |
---|---|
GRC | Present. It is possible to paint, but it is more effective to add coloring pigments at the stage of manufacturing the product |
gypsum | Present. Painting of gypsum products is possible. Repainting of products is necessary approximately every three years |
concrete | Present. With the help of facade paint (repainting approximately every three years) and the addition of pigments at the manufacturing stage |
brick | no |
porcelain stoneware | Present |
marble | Difficulties with the selection of marble of the same shade for large areas |
granite | Difficulties with the selection of marble of the same shade for large areas |
putty for external facades | Present |
GRC can be coated with paint, painted with pigments or simply with natural gray and white. Painting of panels from GRC is carried out in the "body" of the material with the help of pigments: scaling, scratches and other damage and defects of the color layer are excluded.
The facade of the building receives a unique look and architectural expressiveness and blends harmoniously into the surrounding landscape.
The most daring design solutions can be realized. Durable and persistent color design of facades, saving money for painting the facade.
Material | Efforts to break the anchor from the cladding panel |
---|---|
GRC | 280 kg |
gypsum | Anchor not used |
concrete | 249 kg – 300 kg |
brick | Anchor not used |
porcelain stoneware | Anchor not used |
marble | Anchor not used |
granite | Anchor not used |
putty for external facades | Anchor not used |
The anchor in the GRC can withstand a load of up to 280 kg, for example, if 4 people hang on it, each weighing up to 70 kg.
The strength of the anchor fixing ensures the durability of the installation of products from the GRC, which leads to the lack of the need for facade reconstruction, the lack of operating costs and money saving.
Material | Seismic stability of the anchor bar |
---|---|
GRC | 9 points |
gypsum | Anchor not used |
concrete | 9 points |
brick | Anchor not used |
porcelain stoneware | Anchor not used |
marble | Anchor not used |
granite | Anchor not used |
putty for external facades | Anchor not used |
With a potential seismic effect, for example, an earthquake, a building with facade elements from GRC, which are attached to the surface by anchor rods, will withstand the seismic load, ensuring the safety of people's lives inside the building.
Security of the facade part of the building with seismic action up to 9 points, no need for facade reconstruction, saving money.
Material | Resistance to abrasion |
---|---|
GRC | Low level of abrasion |
gypsum | High level of abrasion |
concrete | The level of abrasion is 30% higher (worse) than in the GRC, mechanical destruction of the surface of concrete occurs due to the formation of a significant amount of dust |
brick | High level of abrasion (life of steps made of red brick - short, 2-3 years) |
porcelain stoneware | Low level of abrasion |
marble | Natural softness limits the use of marble for exterior decoration. In places with high permeability, the marble facing very quickly loses its gloss and becomes unusable |
granite | Granite is highly resistant to friction, compression and abrasion |
putty for external facades | Not used for the manufacture of steps |
Steps of GRC have a low level of abrasion and, under the influence of the intensity of motion, the properties of the GRC do not change.
No need for step reconstruction
Material | Non-standard architectural facing of buildings |
---|---|
GRC | Used |
gypsum | Used |
concrete | no |
brick | no |
porcelain stoneware | no |
marble | no |
granite | no |
putty for external facades | no |
Used for non-standard architectural facing of buildings with prefabricated elements.
Facing from the GRC can replace non-structural elements from prefabricated reinforced concrete in cases where their application is problematic because of the large mass and / or inability of reinforced concrete to reproduce this or that form / configuration.
Material | Integrated production approach |
---|---|
GRC | Used |
gypsum | no |
concrete | no |
brick | no |
porcelain stoneware | no |
marble | no |
granite | no |
putty for external facades | no |
Complex approach of production - from design to installation of products.
Saves time.
Material | Uniqueness and Exclusivity |
---|---|
GRC | yes |
gypsum | no |
concrete | no |
brick | no |
porcelain stoneware | no |
marble | no |
granite | no |
putty for external facades | no |
Uniqueness and exclusiveness. Only one plant in the South of Russia produces architectural elements from the GRC.
Prestigiousness, saving time and money (for logistics from another region from another manufacturer).