Sustainable Road Construction Technology

Anil Banchhor, Chief Executive - Concrete Business at ACC Limited, Mumbai

krishnagiri wp Road

ACC Set up the first commercial Ready Mix concrete plant in Mumbai in 1994. It Concrete is one of the largest Ready Mix Concrete manufacturers with a network of over 50 plants spread across all major cities in India. ACC's pioneering efforts in promoting use of ready mix concrete coupled with the promotion of bulk cement handling facilities have been responsible for redefining the pace and quality of construction activity in metropolitan areas and major infrastructure projects. The company has been at the forefront of sustainable construction in all the areas that it operates in.

In India, cement concrete roads were built in isolated locations on national highways, state highways and city roads since early 1950. In the last decade of the 20th century, few major road projects like Mumbai-Pune Expressway (90Km), Delhi-Mathura (100Km section), Indore bypass road (35Km) etc. were undertaken with concrete pavement. These experiences accelerated the construction of 1600Km concrete road under Golden quadrilateral. Further the advantages of cement concrete road over bitumen road in terms of longer life, less maintenance, good riding quality, better skid resistance, lower life cycle cost, no effect of rain water, no effect of spillage of oil, better reflectivity, saving in fuel consumption, etc. has also lead to construction of more concrete roads in several parts of India.

However, due to higher initial cost and the requirement of higher degree of care in design and construction, the concrete roads were not preferred over bitumen roads. Now the major road projects are being implemented using modern equipment, there has been substantial confidence and capacity building among the engineers and the contractors in the area of concrete roads. The cost difference between concrete and bitumen roads, which used to be over 50% earlier, has come down from 15 to 25% now. This gap has further come down to 10 from 15% due to adaptation of High Volume Fly Ash Technology in concrete road.

High Volume Fly Ash (HVFA) concrete was developed nearly two decades ago. In this type of concrete, about 40-60% of the Portland cement is replaced by a suitable quality of fly ash for different applications including concrete pavements. HVFA concrete exhibits improved fresh concrete properties and excellent mechanical properties and long-term durability along with economy.

Improvement in properties of HVFA concrete with respect to bleeding, setting time, autogenous temperature rise, development of compressive strength with age, flexural- and splitting-tensile strength, drying shrinkage, resistance to abrasion along with efficient use of cementitious material is leading the increased use of HVFA concrete in various applications in concrete constructions.

Good quality HVFA concrete can be produced with judicious use of cement and superplasticisers for different structural applications with varying percentage of fly ash additions. It can be used successfully in our country with very low life cycle cost and good performance, because fly ash is abundantly available and the temperature is also conducive for better reactivity of fly ash as compared to countries like Canada and US, where the cold climate is prevailing for most of the year.

NBM&CW March 2016

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 ...

Repair of Scaled Surface Areas of Newly Constructed Cement Concrete Pavement Slabs

After 2014, the speed of the construction of cement concrete road for national highways and expressways, in cities and even at village level has significantly increased due to the policy adopted by the Government of India Read More ...

ArcelorMittal Long Products - Benefits of steel solutions in bridge design

Today's modern bridge construction projects face totally new challenges. The public, the regulators and the authorities demand structures that are cost effective during their planning, execution, lifetime and dismantling. Read More ...

From Yarn to Bridges – Strata Takes Another Giant Leap in Technical Textiles

Strata Geosystems, a global leader in the soil reinforcement industry, has opened its new state-of-the-art manufacturing facility, which will meet the growing demand for geosynthetic products in India and around the Read More ...

Bogibeel Rail-cum-Road Bridge

There are a lot of legends and prophesies floating with the current of the mighty Brahmaputra River as it tracks its course from Tibet to Bangladesh, roaring down through narrow chasms and gobbling up land in its pursuit Read More ...

Advantages of Precast Concrete in Constructing Highways & Bridges

Prefabrication of any structure component off-site during highway construction (or reconstruction) offers major time and user cost savings in comparison with the traditional cast-in-place methods of construction. Read More ...

Long-life Pavements - European & American Perspectives

Long-life Pavements European & American Perspectives Road infrastructure investment has increased less in many countries than road traffic. If these trends continue, the outcome will be increasing intensity of Read More ...

Performance Management for Durable Pavements

Satisfactory pavement performance can be assured only with an appropriate design with a well-calibrated algorithm, material selection based on the appropriate mix design, proper processing of the materials for Read More ...

Experimental Study on Tunnel Excavation Muck for Road Construction

Substantial parts of India are covered by hills and Himalayas stand foremost among them. The border areas in the North and North-East of our country are mountainous with steep topography, difficult and hazardous Read More ...

Geocells For Pavement Reinforcement

Roads are essential for the economic growth of the country, and unlike the railway network, various classes of roads-from expressways to rural road, assure last mile connectivity. India’s growing economy requires Read More ...

Pervious Concrete Technology for Urban Roads and Pavements

Pervious Concrete Technology for Urban Roads and Pavements In recent years, the rise in employment and higher standard of living, amongst numerous other factors, has led to a gradual shift of people from rural to urban Read More ...

Durable and Economical Technology for Bituminous Surfacing of Rural Roads

The Pradhan Mantri Grameen Sadak Yojna (PMGSY) has been one of the most successful flagship programmes launched by former Prime Minister Atal Bihari Vajpayee in 2000 for constructing a wide network of rural roads Read More ...

Precast Concrete - Smart Pavement - The future of road building

The term “information superhighway” was introduced in the 1990s. Back then, it was used to describe a worldwide communications network. Today, Kansas City, Mo.-based Integrated Roadways is putting a different Read More ...

Faster & Better Road Construction is Possible

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 Read More ...
NBM&CW

New Building Material & Construction World

New Building Material & Construction World
MGS Architecture

Modern Green Structures & Architecture

Modern Green Structures & Architecture
L&ST

Lifting & Specialized Transport

Lifting & Specialized Transport
II&TW

Indian Infrastructure & Tenders Week

Indian Infrastructure & Tenders Week