The world has changed dramatically during the last 100 years, with phenomenal advances in medicine, aircraft design, motor industry, cell phone technology and the computer industry to name but a few. However, the vintage McAdam layered road design has advanced very little over the last 190 years.

Soiltech
Road engineers are known to be somewhat conservative in their designs, relying on good, faithful emperical data pertaining to material selection and their respective compressive strengths.

Smart Materials for Road Construction

Polyroads, a South African company, manufactures a range of innovative and environmentally-friendly and Smart Materials for the road construction industry. Polyroads’ JV partner in India for more than 10 years is Kaveri Ultra Polymers Pvt. Ltd, with offices in Bangalore, Mumbai and Kolkata.

Nick Muller, CEO, Polyroads, says, "Smart Materials challenge the core of conventional road design and construction by bringing in unprecedented resilient modulus to the pavement layer material, which is required for Mechanistic-Empirical (ME) road designs. The improved E-modulus of Smart Materials reduces the number of required supporting aggregate layers. Conventional road design typically comprises four to five layers of road materials with varying degrees of compressive strengths. In comparison, SoilTechMk. III designed roads will require one or two layers to be stabilized, thereby, substantially reducing construction time and costs."

Road const

Cement stabilized materials, by nature, display limited e-modulus characteristics, and hence, the need for strong supporting substrate layers. Conversely, SoilTech being an elastomeric polymer, significantly increases the e-modulus of the road materials. The e-modulus of the material is the measurement stress over strain and determines the materials ability to retain its former shape after the load/stress has been removed, without showing permanent deformation of the road layers.

Most road designers simply ignore the E-modulus factors of materials when doing a road design based on cement stabilizing, and simply focus on the compressive strengths of the materials. The reason is quite simple – concrete does not have great e-modulus properties, so engineers simply focus on CBR results and do not factor in e-modulus.

SoilTech Mk. III, a third-generation polymer, has been purposely designed to increase the CBR and the e-modulus of materials. SoilTech is used extensively on mine haul roads where 300 ton trucks with two axles are common. The rear axles carry 60% of the load, which equates to 195 tons on a single axle. This is 24 times more than the international equivalent single-axle load (ESAL) specification of 80kN. Furthermore, nano-polymers inherent in SoilTech will migrate from the stabilized layer into the sub-grade, further strengthening the supporting layer.

Sukuk Road Inspection

Smart Materials – Multiple Beneficiaries

Smart Materials is a game changer for the road construction industry with its numerous benefits:

Customers:
  • Road projects are completed faster
  • Cost savings is 25-35% cheaper than conventional roads
  • Construct 25 – 35% more roads with the same budget
  • Due to the higher e-modulus, roads have increased longevity
  • Less maintenance
Consulting Engineers:
  • Projects are completed faster
  • Complete more projects in a calendar year
  • Improved cash flow
  • Innovation in road design – become industry leader
  • Repeat business from satisfied customers
Construction Companies:
  • Shorter construction time
  • Open stabilized, unsealed roads to traffic 24 hours after construction
  • Place DBM or wearing-course seal four days after construction
  • Road construction projects are less impacted by monsoon
  • Complete three times more projects per annum
  • Same plant is used to complete more projects per annum – no extra costs
  • Less diesel costs per project
  • Improved cash flow
  • Reduced machinery maintenance per project
  • Improved bottom-line on balance sheet due to increased efficiencies and more project sign-offs
Environmentalists:
  • Reduce borrow-pit aggregate by utilizing in situ materials
  • Reduce carbon emissions by 92%
  • Water reduction due to fewer layers and no need to keep the curing road damp
  • Zero toxins
BARELA

At the IRC road conference in Bangalore 2014, Late Dr. L.R. Kadiyali stated that India consumes enough aggregate annually to build a road around the world, 6-m wide x 600-mm deep. Current road design based on the importation of good borrow material from an environmental perspective, is simply not sustainable.

There is no doubt that Smart Material development and production will accelerate in the coming years.
Click Here
To Know More or to Contact the Manufacturer
Please let us know your name.
Invalid Input
Please let us know your Designation.
Please let us know your Contact Number.
Please let us know your email address.
Please brief your query.
Our other Value-Added Services:

To receive updates through e-mail on Products, New Technologies & Equipment, please select the Product Category(s) you are interested in and click 'Submit'. This will help you save time plus you will get the best price quotations from many manufacturers, which you can then evaluate and negotiate.

Invalid Input
Invalid Input
Invalid Input
The demand for structural strengthening of ageing structures is growing rapidly in buildings, industrial structures, infrastructure projects like bridges, dams, etc. Structural Strengthening also

Read more ...

Durability and strength are two most important criteria and requirements for the long-term performance of concrete structures against weathering action, chemical attack and abrasion. Any deficiency

Read more ...

Cement is a key binder component of concrete production in the building industry. It is a complex hydraulic binder, made up of four main clinker components; alite (Ca3SiO5), belite (Ca2SiO4)

Read more ...

FAIRMATE manufactures a complete range of construction chemicals and provides cost-effective solutions and world-class services to the Speciality Construction Chemicals Industry in alliance with leading

Read more ...

Corrosion of concrete is a major issue and many concrete structures on adverse environment have experienced unacceptable losses in terms of serviceability, ultimately requiring replacement

Read more ...

Cement is the most used industrial commodity required for development, but it is also responsible for high GHG emissions; so there is a need to create a balance between the nation’s growth and environment sustainability

Read more ...

Cement concrete is the most consumed materials on the earth next only to water. The ingredients used in preparing concrete are not sustainable. The ingredients are responsible for causing global warming. The most

Read more ...

India’s ready-mix concrete (RMC) market is projected to witness a 7-9% CAGR in the next five years. This growth is predominantly driven by the increased investments in the development of infrastructure throughout

Read more ...

Concrete, being a physical mixture of cement, aggregate (sand and crushed rocks), and water, is the key construction material across the world. There is now a huge demand for infrastructure which has increased concrete

Read more ...

There is a need for technologically advanced concrete admixtures for the ready-mix industry that meet industry codes and meet or exceed the demands of challenging construction applications and adverse placement conditions

Read more ...

High Performance Concrete (HPC) is seeing major applications in the field of civil engineering constructions such as long-span bridges, tunnels, high-rise buildings, huge complexes, highway pavements, and more, since

Read more ...

Concrete being the second largest consumed material after water needs attention towards sustainable construction with an increase in infrastructure. The world is moving towards innovative techniques and methodologies

Read more ...

Co-processing of waste in the cement industry is an advanced and innovative recovery process whereby energy is recovered, and the non-combustible part of the waste is reused as raw material.

Read more ...

Traditional masonry units are not sustainable and eco friendly due to consumption of fuel or cement. It is essential to find sustainable alternatives. This paper reports about preparation of geopolymer bricks, masonry

Read more ...

Geo-polymer mortar (GPM) is proven for its strength, durability and sustainability [2 & 3]; strength of GPM is a function of alkaline to binder ratio, and has an adverse effect on consistence properties of mortar

Read more ...

Comparison of Reinforced and Pre-Stressed Concrete Building Frames This article discusses pre-stressing of concrete to get lighter and slender beam sections for six different four storied concrete building frames of different spans/lengths by the application of post-tensioning

Read more ...

Ready mix concrete (RMC) is the first choice for projects requiring concrete. The term ‘ready mix’ is used to describe a process where concrete is pre-made at a plant and delivered in batches to job sites. It is a convenient

Read more ...

When we talk of Primers that are applied before the paint work, what comes to mind are the Acrylic Primers. However, since the last few years, White Cement-based Primers are gaining popularity amongst the construction

Read more ...

Chemistry is truly relevant for concrete because chemistry controls the life/durability of concrete. It explains why cement hardens and the interaction between cement and its environment. Dr. S.B.Hegde at Udaipur Cement Works

Read more ...

Concrete is considered the world’s most versatile, durable and reliable construction material, next only to water. It is the most consumed material requiring large quantity of cement, fine aggregates, course aggregates

Read more ...

×
Sign-up for Free Subscription
'India Construction Week'
Weekly e-Newsletter on Construction Industry
Get the latest news, product launches, projects announced / awarded, government policies, investments, and expert views.