Faster & Better Road Construction is Possible

Dr. John Mukabi and Nick Muller give an analysis of the innovative characteristics of SoilTech MK. Ill, a polymer stabilized geomaterial for construction of pavements.
Nitin Gadkari
"There is an urgent need to give up conservative approach in governance and adopt new technologies to push the pace of highway construction."

Nitin Gadkari, Road & Highways Minister

Road Transport & Highways minister Nitin Gadkari has time and again been urging to use more of innovative techniques and materials for faster and better-quality construction of roads and highways. While launching the country's first Highway Capacity Manual (HCM), he said that the government officials and departments should be more proactive in adopting superior stabilizing technologies that would speed up road construction significantly, while enabling better and more long-lasting roads.

HCM is a guide to road engineers and policy makers on road construction code, traffic management and construction capacity of highways. It is based on a countrywide study of traffic on different categories of roads and highways by CSIR-CRRI.


Challenges & Solutions

Stabilization techniques have long been used for purposes of enhancing the geotechnical engineering properties of pavement geomaterials. These techniques mainly include mechanical, traditional hydraulic (cement, lime, fly ash etc), bituminous, polymer and other non-traditional liquid chemical stabilization. Liquid chemical stabilization is yet to gain popularity due to lack of proper scientific and engineering background and pragmatic performance justification based on enhanced R&D. In due consideration, the main challenges associated with stabilization that require rigorous R&D include:
  • Developing stabilization techniques that can be effectively useful for inferior construction materials that are usually rendered useless
  • Determining optimum batching ratios for varying geomaterials to enhance mechanical stabilization prior to application or addition of stabilizing agents
  • Selection of appropriate stabilizing agents that are chemically compatible with the applicable geomaterial
  • Determining the optimum content to be added to the geomaterial in order to achieve optimally enhanced physical and mechanical properties whilst minimizing associated detrimental effects such as cracking
  • Developing sophisticated and advanced analytical modelling techniques that can effectively characterize the behaviour of stabilized geomaterials both quantitatively and qualitatively. In this study, sophisticated analytical models are employed in characterizing and fostering the salient properties of SoilTech Mk. Ill polymer stabilizing agent with respect to theoretical and pragmatic consideration including:
    • Interlayer nano-polymer migration effects
    • Elastomeric properties
    • Enhanced response to compaction effects
    • Enhanced tensile characteristics
  • Increased resilience to deformation;
  • Expanded range of stress-strain elastic limits; and,
  • Appreciable resistance to cracking under excessive loading
Table 1: Chronology of 3rd Generation Stabilizer

Kaveri Stabilization techniques

SoilTech Mk. III - a third generation soil stabilizer, was developed 20 years ago in by Polymer Pavements in South Africa, and is currently represented in India by J.V partner Kaveri Ultra Polymers. SoilTech was purposely designed and manufactured to address these challenges and to leapfrog somewhat archaic road stabilization technologies.

1998: the first commercial application of SoilTech Mk. I was in 1998. Initially, the product was developed as a binder for rural roads. Over the next couple of years, Polyroads modified SoilTech with new cross-linking polymers to improve compressive strengths – SoilTech Mk. I.

2006: major technology advances saw the introduction of long-chain polymers into SoilTech and thereby adding a second performance dimension to SoilTech. The high CBRs achieved in materials with SoilTech were complemented by new and highly improved elastic modulus in the stabilized pavements, allowing greater flexural strengths and loading capabilities, not to mention improved longevity in the pavements – first of a kind - SoilTech MK. II.

2010: Polyroads chemical engineers introduced nano-polymerization into SoilTech. The specific nano-polymers being substantially smaller than the normal SoilTech polymer particle, allows for easier sliding velocity on capillary adhesion in the materials. Specifically engineered surfactants, mixed with the nano-polymers, further reduces tensions as SoilTech nano-particles migrate from the stabilized base-layer into the sub-base, resulting in two-layer stabilization. First of a kind – SoilTech Mk. III.

Polyroads’ engineers have developed appropriate methods of design involving advanced geotechnical engineering concepts related to the Elastic Limit Design Criterion (ELDC) and Modulus-Thickness Design Criterion (MTDC). The prowess of these methods, developed for both unreinforced and stabilized pavements, with fundamental objectives of achieving prolonged pavement design life through protracted maintenance of the elastic properties, is demonstrated by ensuring that the impact of imposed loads and environmental changes is contained within the linear elastic region.

The most distinguished advantage of the ELDC and MTDC, is that all design parameters derived are based on only three primary parameters; namely, the pavement thickness, elastic modulus and the cumulative ESALs (Equivalent Single Axle Loads), to which all other parameters are correlated. Non-linearity is analysed based on the soil mechanics concepts of the KHSSS (Kinematic Hardening Small Strain Stiffness). Due to the successful application and cost-construction time effectiveness of these methods of design, Polyroads’ engineers will advise on the application of the elastic limit stress-strain and modulus-thickness ratio concepts as the appropriate quasi-mechanistic methods of design for polymer stabilized pavement geomaterials.

More than 20 roads have already been constructed in India using SoilTech Mk. III stabilizers. SoilTech.
  • Reduce aggregate required for layered works
  • Reduce construction time
  • Reduce costs
  • Improve road longevity.
iTRARR 2018 - International Conference – Mombasa, Kenya

The Kenya Roads Board in collaboration with Material Testing and Research Division will host the 2nd International Conference on Transport and Road Research (iTRARR 2018) from 11 – 14 June in Mombasa, Kenya. Dr. John Mukabi will be presenting a Paper on ‘Innovative Analytical Characterization of SoilTech MK. III Polymer Stabilized Geomaterials for Unique Design and Construction of Pavements’, at the conference.

NBM&CW April 2018

Click Here
To Know More / Contact The Manufacturer
Please provide your details we will contact you as soon as possible
Choose Title from the listPlease let us know your name.
Please let us know your Designation.
Invalid Input
Please let us know your email address.
Please let us know your City.
Please let us know your Contact Number.
Please brief your query.
Our other value-added services:

To receive updates through e-mail on Products, Technologies, equipment, please Select the Product Category(s) you are interested in and click Submit. This will help you not only to save time but also to get best quote for right products from many manufacturers of the same category; it helps you to evaluate and negotiate the best price.

Equipment & Machinery
Invalid Input
Building Products
Invalid Input

Suggestive Framework for Mitigating Project Delays in Indian Roads & Highways Sector

Time delay had been a common phenomenon associated with nearly all road construction projects in India but very little effort and studies had been done to amputate the phenomenon.The objectives of this study provided industry Read More ...

Characterisation of Foundry Sand Waste Material for Road Construction

Characterisation of Foundry Sand Waste Material for Road Construction Different types of waste materials viz. copper slag, zinc slag, steel slag, manganese slag, phosphogypsum slag, cinder, red mud, kimberlite, lime sludge, foundry sand, coal ash, jarofix, jarosite, manganese slag, marble dust etc Read More ...

Thin Whitetopping Cement Concrete Overlays on Bituminous Pavements:

Concrete is a very durable and versatile material for the construction of roads and highways. Several highways, expressways, and city roads have been constructed with cement concrete in the recent past in India. Cement concrete Read More ...

A Transformative Approach to Highway Construction

An 18-mile stretch of Georgia interstate is pushing the technological envelope with respect to safety and sustainability in road construction. By leveraging solar energy, recycled tires, vehicle telematics data and valuable roadside Read More ...

Accelerated Pavement Testing

Accelerated Pavement Testing images/Road-Pavements/40594-APTtesting.jpg The Indian road network is mainly built with flexible pavements, because of ease of construction and low initial cost as compared to concrete pavements. The flexible pavements are designed as per Indian Roads Congress Read More ...

Pavement Maintenance Management System

An efficient road transportation system is of vital importance to the economy of a nation. Road transport occupies a dominant position in the overall transportation system of India due to its advantages in terms of easy availability, flexibility Read More ...

Cement Grouted Bituminous Mix for Flexible Pavements

India has the second largest road network with heterogeneous traffic conditions. Although the road construction in India has improved a lot in the last two decades, at times, it is observed that the pavements, especially in urban areas Read More ...

Whitetopping Durable and Cost-effective Solution for City Roads

Concrete is a very durable material for the construction of roads and highways. Cement concrete has been used for the construction of new roads, highways and also for the rehabilitation of existing distressed bituminous pavements Read More ...

Utilisation of Waste Materials in Road Construction

The Road sector has been receiving a lot of attention by the central as well as state governments during the last two decades. As a result, new roads are being constructed and existing ones are being upgraded to meet the traffic demand Read More ...

Construction of Sustainable Pavements Through Recycling

Increased connectivity and improved road infrastructure developed in the country in the recent past has resulted in significant increase in the growth of traffic in terms of the number of vehicles and axle loads. However, the increased Read More ...

StrataWeb®: An Innovative Solution for Embankment Slope Protection Stabilization

Side slope erosion has always been an issue for highway embankments. Especially during the monsoons, these slopes pose a challenge. The Larsen & Toubro-IDPI SPV, constructing its 163km long Rourkela-Sambalpur toll-way road Read More ...

Role of Concrete in - Road Infrastructure

In India, the emphasis in recent years has rightly been on the housing and infrastructure, including, amongst other things, roads, power and irrigation sectors. The Global Infrastructure Outlook reflects that rising income levels Read More ...

Ammann ARS 121 Soil Compactors deployed at 354-km Purvanchal Expressway

Ammann ARS 121 Soil Compactors are bringing efficiency to an enormous, high-profile roadbuilding project in India. The compactors are handling soil work for a key section of the 354-km Purvanchal Expressway, the longest current Read More ...

Ashoka Buildcon constructs Package 4 of landmark Eastern Peripheral Expressway project

Ashoka Buildcon, which was awarded package 4 of the EPE project, constructed 22km of the 135 km EPE, at a cost of ₹789 crores. It built three grade separators, one ROB, 12 VUPs, 22 PUPs, four minor bridges and 20 Read More ...

Wirtgen: Cold milling machines have a decisive impact on quality of road rehabilitation

Wirtgen offers the widest range of cold milling machines in the industry. Customers can choose from more than 30 different types of machines, with each also available with a variety of milling widths. The lower Read More ...

Smart Pavement Materials and Emerging Technologies

Smartness describes self-adaptability, self-sensing, and multiple functionalities of the materials. These characteristics provide numerous possible applications of such materials in manufacturing and civil Read More ...

New Building Material & Construction World

New Building Material & Construction World
MGS Architecture

Modern Green Structures & Architecture

Modern Green Structures & Architecture

Lifting & Specialized Transport

Lifting & Specialized Transport

Indian Infrastructure & Tenders Week

Indian Infrastructure & Tenders Week