THEORETICAL ASPECTS IN THE FORMATION OF
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RESEARCH ON THE COMPOSITION OF NEW INNOVATIVE
CONCRETES USED FOR ROAD PAVEMENTS AND THEIR PHYSICAL-
MECHANICAL PROPERTIES
Botirov Bektosh Farxod o’g’li
(assistent, JizPi)
Rapiyeva Rayxona Akmal qizi
(talaba, JizPi)
Axmatova Navbaxor Abdunazar qizi
(talaba, JizPi)
Chaqqonova Sabrina Dilmurod qizi
(talaba, JizPi)
https://doi.org/10.5281/zenodo.13911265
Abstract:
This article is dedicated to the study of the composition and
physical-mechanical properties of new innovative concretes used for road
pavements in modern transport infrastructure. Traditional concretes are prone
to quick cracking and corrosion, making them vulnerable to extreme weather
conditions. Innovative concretes aim to enhance quality through the use of
additives and modifiers. The article discusses various types of innovative
concretes, their physical-mechanical properties, and their applications in road
pavements.
Keywords:
Innovative concretes, Road pavements, Physical-mechanical
properties, Traditional concrete, Corrosion resistance, Ecological concretes
In modern transport infrastructure, concrete pavements hold significant
importance. As one of the main materials for roads, bridges, and other
structures, concrete is distinguished by its high strength and long service life.
However, traditional concrete has several drawbacks: it can quickly develop
cracks, is prone to corrosion, and shows weakness against extreme weather
conditions. Therefore, great emphasis is being placed on improving the quality
of road pavements through the development of new components and innovative
technologies added to concrete during scientific research.
Today, innovative concretes are being improved in various ways to
enhance their physical and mechanical properties. These new technologies are
primarily based on the use of additives and modifiers. These technologies serve
to increase the corrosion resistance of pavements and enhance the heat, cold,
and water permeability resistance of concrete.
The main goal of this article is to investigate the composition of innovative
concretes and their advantages in road pavement applications. Within this
framework, new types of concrete and their physical-mechanical properties will
be analyzed, and practical recommendations will be provided based on the
results of experimental research.
Traditional concretes consist of essential components such as water,
cement, sand, and gravel. The mutual ratio and quality of these components are
THEORETICAL ASPECTS IN THE FORMATION OF
PEDAGOGICAL SCIENCES
International scientific-online conference
41
the main factors determining the strength and durability of concrete. Traditional
concretes have certain limitations, such as weaknesses in tension and bending,
low corrosion resistance, and rapid damage under harsh weather conditions.
These factors can reduce the service life of the concretes used in road pavements
and increase operational costs.
Innovative concretes aim to eliminate the shortcomings of traditional
concrete through new technologies and additives. For instance, nanoconcretes
significantly enhance strength and durability with the help of nanomaterials.
When nanomaterials are incorporated into the concrete mix, they improve the
microstructure of the concrete, reduce cracks, and enhance corrosion resistance.
Additionally, ecological concretes are also being developed, which are produced
without harming the environment and are made from recycled materials.
Innovative concretes include high-strength fibers, polymer additives, and
special chemical substances. Polymer concretes are highly resistant to severe
chemical effects and corrosion, allowing for long service lives. Fiber-reinforced
concretes significantly increase tensile and bending durability, which is crucial
for road pavements. The composition of innovative concretes affects their
physical-mechanical properties and provides essential characteristics for long-
term use in road pavements.
The most important properties of innovative concretes are related to
mechanical strength, elasticity, corrosion resistance, and durability against
extreme weather conditions. Mechanical strength is determined by measuring
the resistance of concrete to compressive, tensile, and bending forces.
Nanomaterials, fibers, and polymers included in the composition of innovative
concretes significantly improve these parameters.
The elastic modulus in bending measures the resistance of concrete to
deformation. The fibers and polymers in the composition of innovative
concretes add elasticity, which reduces the occurrence of cracks and increases
strength. Additionally, this allows for better control of the level of deformation
in concrete, which is critical for road pavements. Concretes produced using new
technologies aim not to change shape under rapid cooling or heating effects.
Corrosion resistance is a crucial indicator that ensures the long-term
usability of road pavements. Innovative concretes are reinforced with special
chemicals and fibers to resist corrosion. Furthermore, water impermeability and
freeze-thaw resistance are also of significant importance. Innovative concretes
reduce the penetration of water into the concrete, thereby minimizing damage
during freeze-thaw cycles.
Innovative concretes outperform traditional ones not only in mechanical
properties but also in practical applications. In many countries, these types of
concrete are widely used in the construction of bridges, tunnels, and road
pavements. In projects utilizing innovative concrete, the strength and durability
of road pavements significantly increase. For example, fiber-reinforced
THEORETICAL ASPECTS IN THE FORMATION OF
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International scientific-online conference
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concretes are widely used in bridges and roads that carry heavy loads due to
their high resistance to tension.
Among the advantages of innovative concretes are their long service life,
low maintenance requirements, and reduced operational costs. This makes
infrastructure projects economically efficient. Additionally, these types of
concrete are environmentally beneficial as they cause less harm to the
environment and can be recycled.
Innovative concretes not only excel in mechanical and physical properties
but also in practical applications compared to traditional concretes. The main
task of road pavements is to provide a stable, safe, and long-lasting flow of
vehicles. Furthermore, roads and other transport structures need to be resistant
to corrosion, loads, and extreme weather conditions. Therefore, the concrete
pavements used in road construction must have high quality and strength.
Innovative concretes are emerging as one of the most effective solutions that
meet these requirements.
Today, many countries are extensively using innovative concretes to
renew and strengthen their infrastructure. These projects are being tested and
successfully implemented on roads, bridges, tunnels, and airport runways. For
instance:
Bridges and roads under heavy loads: Innovative concretes, particularly
fiber and high-strength polymer concretes, are being used in bridge
construction. These concretes can evenly distribute stress and have a long
service life. For example, polymer concretes were used in the Bay Bridge project
near San Francisco, USA, to enhance the durability of the bridge and reduce
operational costs.
Tunnels and underground structures: High compressive strength and water-
resistant concretes are required in underground structures. Nanoconcretes and
fiber-reinforced concretes stand out here for their superior mechanical and
waterproofing properties. In projects using innovative concretes, such as the
construction of the Gotthard Base Tunnel in Switzerland, water-resistant and
highly corrosion-resistant concretes were used
Airport runways: Innovative concretes are being applied in major airports.
For instance, corrosion-resistant polymer concretes were used at Dubai
International Airport to ensure the long-term usability of runways. The use of
innovative concretes in airports makes them more resilient to the weight of
aircraft and reduces the corrosion process.
The advantages of innovative concretes are multifaceted, offering
numerous benefits for road pavements compared to traditional concretes. Below
are the main advantages: High strength: Innovative concretes, particularly
nanoconcretes and fiber-reinforced concretes, have high strength and can
withstand heavy loads. This is critical for preventing cracks and settlements
under the constant flow of vehicles and heavy trucks on road pavements.
THEORETICAL ASPECTS IN THE FORMATION OF
PEDAGOGICAL SCIENCES
International scientific-online conference
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Corrosion resistance: Innovative concretes, especially fiber and polymer
concretes, have high resistance to corrosion. This ensures that the pavements
remain intact for long periods without wear. For instance, as traffic density
increases on roads, the level of corrosion also rises, leading to higher
maintenance costs. Innovative concretes significantly reduce such corrosion.
Durability against extreme weather conditions: Innovative concretes show
significant resilience to weather conditions. They perform much better in water,
freeze, and thaw processes. Cracking due to freeze-thaw cycles is a major issue,
especially in cold regions. Polymer and nanoconcretes reduce this process,
increasing the long-term usability of road pavements.
Fast curing and quick installation: Another important advantage of
innovative concretes is their rapid curing ability. In road construction, speed is
often crucial, as keeping roads closed for long periods negatively impacts traffic
flow. Nanoconcretes and polymer concretes cure quickly and can be put to use in
a short time.
Reduced maintenance and operational costs: Due to the long service life of
innovative concretes, repair and maintenance costs for road pavements can be
significantly reduced. Their lower susceptibility to cracks and other damages
leads to lower operational costs, resulting in substantial economic benefits over
the long term.
Due to the high-tech processes and special materials used in their
production, innovative concretes may have a higher initial cost than traditional
concretes. However, in the long run, the economic efficiency of innovative
concretes becomes evident. This can be explained as follows:
Long service life: Innovative concretes last longer than traditional ones,
reducing the need for frequent repairs of roads. For instance, in many countries,
the rapid deterioration of roads, especially their susceptibility to corrosion and
cracking, is a significant problem. Innovative concretes help address this issue,
as they exhibit higher durability against corrosion and mechanical damage.
Low maintenance requirements: The high durability of innovative
concretes ensures the long-term preservation of road pavements. This
significantly reduces maintenance and repair costs. For example, roads
constructed with fiber-reinforced concretes are less prone to cracks and other
damages, resulting in fewer repair works.
Reduced repair works and road closures: The fast curing properties of
innovative concretes facilitate quick repairs and their prompt availability for
use. This helps maintain the stability of traffic flow and reduces delays and
congestion in the transport system.
Energy efficiency: Some types of innovative concretes, such as ecological
concretes, consume less energy during the production process and do not emit
harmful gases into the environment. This increases their ecological efficiency.
THEORETICAL ASPECTS IN THE FORMATION OF
PEDAGOGICAL SCIENCES
International scientific-online conference
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Eco-friendly concretes produced from recycled materials help reduce the overall
energy consumption of transport infrastructure.
In the future, innovative concretes are expected to be used even more widely in
road construction. The demand for new technologies and environmentally safe
materials is increasing in the development and strengthening of transport
infrastructure worldwide.
Innovative concretes are demonstrating themselves not only as
technologically advanced solutions but also as economically viable options.
Additionally, their ecological cleanliness and sustainability are of significant
importance for future transport systems
Ecological concretes: The use of ecological concretes is expected to rise in
the future. Such concretes are produced with the help of recycled materials, bio-
polymers, and other environmentally friendly additives. This helps reduce the
ecological footprint of road construction..
Advancements in construction technologies: The further development and
expansion of innovative concretes are closely linked to improvements in
construction technologies. With 3D printing technology and other modern
methods, the rapid and efficient construction of concrete structures can be
achieved.
Economic efficiency and long-term use: Innovative concretes ensure the
long service life of roads, allowing for effective allocation of funds targeted at
infrastructure by reducing operational costs.
In conclusion, innovative concretes are proving to be a viable alternative to
traditional concretes in road pavements. The research demonstrates that new
types of concrete possess improved physical-mechanical properties and offer
significant advantages for their application. Their high strength, corrosion
resistance, durability, and low maintenance requirements make innovative
concretes an important factor for the future of road construction.
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