Concrete

Currently, we are not using fly ash in the cement and concrete blend due to regulatory issues

Published

12 years ago

July 31, 2014

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Sudhir Hoshing, CEO-Roads, Reliance Infrastructure Though the regulatory systems are yet to evolve and embrace the new construction material, fly ash has already proved its worth in several large-scale construction projects all over the world. Fly ash has been used in tall building structures like the Petronas Towers in Malaysia. Eurotunnel, the second largest rail tunnel had fly ash mixed in the concrete. In India it has been used in Bhakhra Dam, Rihand Dam, Rajasthan Atomic Power Plant, private builders like Hiranandani Developers, DLF have been using fly ash in residential buildings. ICR interacts with Sudhir Hoshing, CEO-Roads, Reliance Infrastructure, to gauge how the trend is catching up in India.

What are the benefits of blending fly ash in cement?
Fly ash, being a by-product of coal combustion, offers environmental advantages by diverting the material from the waste stream, reducing the energy investment in processing virgin materials, conserving virgin materials, and by allaying pollution.

It also improves the performance and quality of concrete as it:

Affects the plastic properties of concrete by improving workability, reducing water demand, reducing segregation and bleeding, and by lowering heat of hydration.
Fly ash increases strength, reduces permeability, reduces corrosion of reinforcing steel, increases sulphate resistance, and reduces alkali-aggregate reaction.
Fly ash reaches its maximum strength more slowly than concrete made with only Portland cement.
Reduces requirement of cement for same strength of concrete thus making the mix economical.
No special technique is needed to use fly ash blended concrete. It is to be used as per standard established method.

Does blending vary, based on the type of fly ash or application?
Based on the type of coal used, two different types of fly ashes are produced. Anthracite and bituminous coal produces fly ash classified as Class F. Class C fly ash is produced by burning lignite or sub-bituminous coal. For sulfate environments, only Class F fly ash will be permitted and under no circumstances will Class C fly ash be used.

Class F fly ash will typically require an air entraining agent to be added. Class C fly ash will not.

How is the availability of good quality fly ash in the country?
In India fly ash is being used to produce fly ash based PPC. Because in India the power plants basically use lignite and sub-bituminous coal, the Class F fly ash is relatively easy to obtain.

Do you use fly ash in your cement/concrete blends? To what extent?
Currently, we are not using fly ash in cement/concrete blends due to regulatory issues. However, fly ash is permitted for use in embankments, earthwork, etc. Generally, 15 to 28 per cent fly ash is used in such applications.

No special technique is needed to use fly ash blended concrete.

Concrete

India’s Core Sector Growth Eases to 4.8 Per Cent in August

Cement, electricity and iron ore offset declines in other sectors

Published

3 hours ago

September 26, 2026

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India’s output across eight core industries grew 4.8 per cent year-on-year in August 2026, easing from the revised 5.0 per cent growth recorded in July, according to provisional data released by the Ministry of Commerce and Industry. The Index of Core Industries (ICI), which tracks eight key infrastructure sectors, accounts for a significant share of the Index of Industrial Production.

Cement production led the expansion with growth of 12.5 per cent, followed by electricity at 11.6 per cent and iron ore at 5.5 per cent. Steel output increased 3.4 per cent, while refinery products rose 2.6 per cent during the month. The ministry identified cement, electricity and iron ore as the main contributors to overall core sector growth in recent months.

The gains were partly offset by contractions in several sectors. Coal output declined 3.8 per cent year-on-year, while natural gas and crude oil production fell 4.9 per cent and 3.6 per cent, respectively. Fertiliser production recorded the sharpest decline, falling 12.4 per cent in August.

Cumulative growth in the ICI during April-August 2026 stood at 4.3 per cent, compared with 2.4 per cent in the corresponding period a year earlier. Steel output increased 4.1 per cent during the period, while cement and electricity production grew 10.3 per cent and 9.6 per cent, respectively.

Coal, natural gas, crude oil, refinery products and fertilisers recorded negative cumulative growth during April-August. Their contractions stood at 3.2 per cent, 4.4 per cent, 4.1 per cent, 1.4 per cent and 6.7 per cent, respectively. The ministry also revised the final ICI for July to 120.8 from the earlier provisional estimate of 121.2, resulting in a downward revision in the month’s growth rate to 5.0 per cent from 5.4 per cent.

Concrete

Jammu Division Begins First Cement Rail Traffic to Anantnag

Cement Loading From Kathua for Anantnag to Begin on September 14

Published

5 days ago

September 21, 2026

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Jammu Railway Division has placed an indent for the first movement of cement by rail within the division, linking Shaheed Captain Sunil Kumar Choudhary Kathua Railway Station with Anantnag Railway Station. Loading for the consignment is scheduled to begin on September 14.

Concrete

Hard Worker Wins Three Honours at Kyoorius Design Awards

Ramco Cements’ brand secures Grand Prix and two Blue Elephant honours.

Published

5 days ago

September 21, 2026

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The Ramco Cements Limited’s construction chemicals brand, Hard Worker, has won three honours at the Kyoorius Design Awards 2026, including the Grand Prix – Grey Elephant in the Design in Action category.

The brand also secured two Blue Elephant honours, one for Design in Action and another for Packaging, recognising the design approach behind its brand identity and packaging.

Launched in 2025, Hard Worker entered the construction chemicals segment with the brand promise, “Hard-working products for hardworking people.” Its visual identity uses animals and birds to represent product benefits. The camel represents the water-retention capability of Hard Worker Eco Plaster, while the cheetah represents the speed and performance of Hard Worker Block Fix.

The visual language has been extended across packaging, retail, communication, literature, digital platforms and other brand touchpoints. Hard Worker uses bold colours, distinctive animal illustrations and simple visual storytelling to communicate product benefits across markets and audiences, including construction workers and applicators.

“For Hard Worker, design was never an afterthought. It was fundamental to how we wanted to build the brand. In a category that is largely functional, we wanted to create a brand that people could recognise, understand and remember instantly. The Kyoorius recognition is a wonderful validation of this design-led approach,” said Mr. AV Dharmakrishnan, CEO, The Ramco Cements Limited.

Mr. Balaji K. Moorthy, Executive Director – Marketing, Ramco Cements said “In a category where communication has traditionally been product-led and functional, we wanted Hard Worker to stand apart by making design an integral part of the brand experience. From the distinctive animal-led packaging to our communication across consumer and trade touchpoints, every element was designed to make the brand more memorable and the product benefits easier to understand.”

Within its first 12 months, Hard Worker crossed Rs 3.5 bn in sales. The latest recognition follows six honours secured by the brand’s campaign at the Kyoorius Creative Awards earlier in 2026, including the Grey Elephant Grand Prix for its Eco Plaster film.

The Kyoorius Design Awards recognise outstanding design work in India’s visual communications sector across multiple categories and platforms. The 2026 awards were announced on 12 September in Goa.

The Ramco Cements Limited is part of the Ramco Group and operates across cement and allied building-material solutions. Hard Worker is its construction chemicals brand, offering solutions across key construction applications.