Concrete Overlays

Concrete Overlays

The need has never been greater for engineered strategies to preserve and maintain the nation's pavements. With shrinking budgets, ever increasing traffic volumes and loads, and the critical emerging focus on infrastructure sustainability, highway agencies and local road consultants and municipal bodies are being asked to "do more with less" in managing their pavement networks.

Agencies need to be proactive, sustainable pavement mountainous and rehabilitation strategies that last longer and at reasonable costs. In many situations, concrete overlays or similar to "Thin White Toppings" represent such strategies. They offer cost effective, versatile, short-and long-term solutions for the full range of concrete, asphalt, and composite pavements needs. In addition, they contribute to more sustainable construction practices by preserving pavement service for several decades beyond original service life.

Many concrete overlays have been in service for decades, extending the life of the original pavement structures for 30 years or more! Because concrete distributes the traffic loads over a wide area, the underlying pavement does not experience highly concentrated stresses. As long as the original pavement remains stable and uniform, a concrete overlay can be placed, replaced, or recycled as needed for maintenance and or rehabilitation cycles.

In this manner, the concrete overlay systems can be sustainable for 100 years or longer. Rather than removing and reconstructing on year on year basis adding top coats which give away within weeks of facing rains or heavy traffic conditions, a concrete overlay effectively returns its original investment within 2-3 years of the differential cost and does away with yearly maintenance and suffering to the general public and saving a lot for nations spending.

There are several genuine benefits of the Concrete Overlays:

1) Concrete Overlays consistently provide cost effective solutions. Rupee for Rupee they are one of the most effective long-term maintenance and rehabilitation options for the existing pavements with distress.

2) Concrete Overlays can be constructed quickly and continently as

a) The existing pavement does not need to be removed.

b) Simple operations of surface milling or scarifying is enough for "bonded overlays"

c) Few or no pre-overlay repairs are necessary or even desirable in most cases.

d) Concrete Overlays are placed better using TRTP Fixed Form with Gang Mounted Vibrators or such machines with normal construction practices.

e) Many concrete overlays can be opened to traffic within 3-4 days to traffic from date of placement.

f) Accelerated construction practices can be used throughout the normal construction season.

3) Concrete Overlays are easy to repair.

4) Concrete Overlays are durable rehabilitation tool and most cost effective option

5) Concrete Overlays can survive in and of themselves, as complete preventive maintenance or rehab solutions, or can be used in conjunction with spot repairs of isolated distress.

6) Concrete Overlays enhances pavement sustainability by improving surface reflectance, increasing structural longetivity and enhancing surface profile stability.

Concrete Overlays

A recent event has carried this feature at a heavily trafficked junction near Electronic City where with the joint inputs of Ultratech and ACC and the vital study by their team and the approval of the Bruhat Bangalore Mahanagar Palike a 4 lane road stretch of almost 10,000 SQ. Mtrs with equipment from Allen Concrete Pavers (USA) a leader in Fixed Form Paving technology with more than a dozen machines performing at various sites in India was selected for this sensitive task. The project has been successfully executed to the satisfaction of the general public and the inspection agencies too. Once the outcome is quantified and commercial considerations weighed against the age old practice of asphalt top coats and repeated costs etc are tabled, it is expected to save the agency enough to divert funds to more creative infrastructure needs while the Concrete Overlaid pavements meets the best ride quality and almost nil involvement of rehab for years to come is a new chapter herald by the citizens of Bangaluru.
NBM&CW March 2011
Admixture-Cement Compatibility For Self-Compacting Concrete

Admixture-Cement Compatibility For Self-Compacting Concrete

An admixture is now an essential component in any modern concrete formula and plays a significant role in sustainable development of concrete technology. Dr. Supradip Das, Consultant – Admixture, Waterproofing, Repair & Retrofitting

Read more ...

Amazecrete's Icrete: New Age Material for Concrete Construction

Amazecrete's Icrete: New Age Material for Concrete Construction

By maximizing the durability and use of supplementary cementitious materials, Icrete has emerged as a new age material for Concrete Construction V. R. Kowshika Executive Director Amazecrete

Read more ...

Nanospan’s Spanocrete® Reduces Cement & Curing Time in Fly Ash Bricks

Nanospan’s Spanocrete® Reduces Cement & Curing Time in Fly Ash Bricks

Hyderabad-based Ecotec Industries is a leading manufacturer of fly ash bricks and cement concrete blocks in South India under the trademark NUBRIK. Their products are known for their consistency and quality. Ecotec was earlier owned

Read more ...

Ready-Mix Concrete: Advancing Sustainable Construction

Ready-Mix Concrete: Advancing Sustainable Construction

A coordinated approach by the government, industry stakeholders, and regulatory bodies is needed to overcome challenges, implement necessary changes, and propel the RMC sector towards further growth such that RMC continues to play a vital

Read more ...

Advancements & Opportunities in Photocatalytic Concrete Technology

Advancements & Opportunities in Photocatalytic Concrete Technology

Research on photocatalytic concrete technology has spanned multiple decades and involved contributions from various countries worldwide. This review provides a concise overview of key findings and advancements in this field

Read more ...

Self-Compacting Concrete

Self-Compacting Concrete

Self-compacting concrete (SCC) is a special type of concrete which can be placed and consolidated under its own weight without any vibratory effort due to its excellent deformability, which, at the same time, is cohesive enough to be handled

Read more ...

Nanospan's Spanocrete® Additive for Waterproofing & Leak-Free Concrete

Nanospan's Spanocrete® Additive for Waterproofing & Leak-Free Concrete

Nanospan's Spanocrete Additive for Waterproofing & Leak-Free Concrete has proven its mettle in the first massive Lift Irrigation project taken up by the Government of Telangana to irrigate one million acres in the State.

Read more ...

Accelerated Building & Bridge Construction with UHPC

Accelerated Building & Bridge Construction with UHPC

UHPC, which stands for Ultra High-Performance Concrete, is a testament to the ever-evolving panorama of construction materials, promising unparalleled strength, durability, and versatility; in fact, the word concrete itself is a misnomer

Read more ...

Innovative Approaches Driving Sustainable Concrete Solutions

Innovative Approaches Driving Sustainable Concrete Solutions

This paper explores the evolving landscape of sustainable concrete construction, focusing on emerging trends, innovative technologies, and materials poised to reshape the industry. Highlighted areas include the potential of green concrete

Read more ...

GGBS: Partial Replacement Of Cement For Developing Low Carbon Concrete

GGBS: Partial Replacement Of Cement For Developing Low Carbon Concrete

Dr. L R Manjunatha, Vice President, and Ajay Mandhaniya, Concrete Technologist, JSW Cement Limited, present a Case Study on using GGBS as partial replacements of cement for developing Low Carbon Concretes (LCC) for a new Education University

Read more ...

Behaviour of Ternary Concrete with Flyash & GGBS

Behaviour of Ternary Concrete with Flyash & GGBS

Evaluating the performance of concrete containing Supplementary Cementitious Materials (SCM) like FlyAsh and Ground Granulated Blast Furnace Slag (GGBS) that can be used in the production of long-lasting concrete composites.

Read more ...

Nanospan's Spanocrete®: nano-admixture for concrete

Nanospan's Spanocrete®: nano-admixture for concrete

Nanospan’s Spanocrete, a Greenpro-certified, award- winning, groundbreaking nano-admixture for concrete, actualizes the concept of “durability meets sustainability”. This product simplifies the production of durable concrete, making it cost-effective

Read more ...

The Underwater Concrete Market in India

The Underwater Concrete Market in India

India, with its vast coastline and ambitious infrastructural projects, has emerged as a hotspot for the underwater concrete market. This specialized sector plays a crucial role in the construction of marine structures like bridges, ports

Read more ...

The Path to Enhanced Durability & Resilience of Concrete Structures

The Path to Enhanced Durability & Resilience of Concrete Structures

This article highlights a comprehensive exploration of the strategies, innovations, and practices for achieving concrete structures that not only withstand the test of time but also thrive in the face of adversity.

Read more ...

Self-Curing Concrete for the Indian Construction Industry

Self-Curing Concrete for the Indian Construction Industry

The desired performance of concrete in the long run depends on the extent and effectiveness of curing [1 & 2]. In the Indian construction sector, curing concrete at an early age is a problematic issue because of lack of awareness or other

Read more ...

BigBloc Construction an emerging leader in AAC Block

BigBloc Construction an emerging leader in AAC Block

Incorporated in 2015, BigBloc Construction Ltd is one of the largest and only listed company in the AAC Block space with an installed capacity of 8.25 lakh cbm per annum. The company’s manufacturing plants are located in Umargaon

Read more ...

Decarbonizing Cement Industry: Sustainable & Energy-Efficient Measures

Decarbonizing Cement Industry: Sustainable & Energy-Efficient Measures

Dr. L R Manjunatha (VP), Manoj Rustagi (Chief Sustainability & Innovation Officer), Gayatri Joshi (ASM), and Monika Shrivastava (Head of Sustainability) at JSW Cement Limited, discuss new approaches for Decarbonizing the Cement

Read more ...

Concrete Rheology: Technology to Describe Flow Properties of Concrete

Concrete Rheology: Technology to Describe Flow Properties of Concrete

Concrete is a heterogeneous composite complex material, and its hardened property is influenced by its fresh property. Concrete today has transformed into an advanced type with new and innovative ingredients added - either singly or in

Read more ...

Amazecrete ICRETE: Making Concrete Economical & Durable

Amazecrete ICRETE: Making Concrete Economical & Durable

ICRETE offers many benefits apart from reducing cement content and giving high grades saving to ready-mix concrete companies; it helps reduce shrinkage and permeability in concrete slabs, increases the durability of concrete, and also works

Read more ...

To get latest updates on whatsapp, Save +91 93545 87773 and send us a 'Saved' message
Click Here to Subscribe to Our eNewsletter.