Field Experience on Performance of High Volume Fly Ash Concrete Pavement

Flyash Concrete Pavement

Aravind Kumar. B. Harwalkara, Associate Professor, Dr.S.S.Awanti, Professor and Head, Department of Civil Engg., P.D.A.College of Engineering, Gulbarga, Karnataka, India

Introduction

Road infrastructure projects constitute huge investments that have to serve the society for a long time. High investing cost involved in these projects has to be justified from the benefits of a concrete pavement with less maintenance and vehicle operation cost over longer design life. Efforts have to be made to avoid premature performance failure of concrete pavements since rehabilitation techniques for these pavements are costlier proposition compared to other pavements. Also there is a need for optimization of component materials used in the construction of these pavements to make them safe, environment- friendly and effective to cater to the demands of increasing traffic. It is imperative to keep a good level of competence between different types of road construction and also keeping the costs low.

As per published literature [1], a concrete having minimum cement replacement level of 50% by fly ash is termed as high volume fly ash concrete (HFC). HFC has low heat of hydration, reduced drying shrinkage and better workability. Hence HFC has got all the avenues to become a sustainable material especially for rigid pavement application. A minimum grade of M30 concrete which results in a minimum static flexural strength of 3.9 N/mm2 has been specified for pavement quality concrete by Indian Roads Congress [2].

Currently in India most of ready mix concrete for construction industry has fly ash between 20 to 30% of the cementitious material in it while Indian Roads Congress still have reservations towards usage of high volumes of fly ash and hence restricting the percentage of fly ash to 30% that also to be used only in rural roads but not for other important roads. Awareness about HFC is still very low. Hence confidence building process for utilization of HFC for pavements is essential which can be achieved by field studies.

There are very limited field studies available on rigid pavement response in Indian scenario. Only few demonstration road projects have been undertaken in India to familiarize Indian practitioners with high volume fly ash concrete. Construction of high volume fly ash concrete road (on experimental basis of about 1 km length) was taken up jointly by Public Works Department, Raichur, Karnataka State and Central Road Research Institute Delhi using 50% replacement level. Also Associated Cement Company (ACC) has constructed demonstration roads using high volume fly ash concrete with 50% replacement at its Greater Noida and Faridabad Ready Mix Plants. Muncipal Corporation Delhi has constructed a 100m stretch of pavement of 7m wide at Fatehpur Beri, Mehrauli, New Delhi, with high volume fly ash concrete utilizing 50% cement replacement level.

NBMCW April 2013

Click Here
To Know More / Contact The Manufacturer
Please provide your details we will contact you as soon as possible
Please let us know your name.
Invalid Input
Please let us know your Designation.
Invalid Input
Please let us know your City.
Please let us know your State.
Please let us know your Country.
Please let us know your Contact Number.
Please let us know your email address.
Please brief your query.

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 ...

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 ...
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