Concrete

India follows Japanese tech in manufactured sand segmen

Published

4 years ago

December 21, 2021

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Manufactured sand is fulfilling 50 per cent of the total demand for sand being used in concrete mixtures in the country.

Manufactured sand is fulfilling 50 per cent of the total demand for sand being used in concrete mixtures in the country. Sanjay Nikam, CEO and Principal Business Consultant with Suru09 Business Services, feels that with the shortfall in river sand, the demand for m-sand will accelerate manifolds.

Can you explain the different types of sand?

There are different kinds of sands. For instance, the crush stone sand is a fine aggregate produced by crushing hard stone. The crush grail sand is a fine aggregate produced by crushing natural gravel; mix sand is a mix of the two. Then there is manufactured sand which is produced from resources other than natural resources

What are the key challenges faced by the manufactured sand industry?

The industry is facing many challenges. First and foremost is the challenge being the paucity of a uniform regulation pan India. Presently, different state governments have different licensing provisions, norms for royalty payments, sand dredging, etc. This results in disparity, cost undercutting and the easy availability of low-grade sand at cheaper rates in the market. Secondly, the crush quarry are smaller in size (25-50 acres) as compared to a cement mining area that can range beyond 1000 acres. That means one cannot have bigger area of operations. The output from these crusher plants range from 25,000 to 40,000 tons a month. Thirdly, logistics and local issues play a key role in this industry essentially because we are located very close to the city.

What is the ratio of aggregates and m-sand used in concrete?

In concrete, for every ton of cement used, the ration of aggregates used is 7 to 10 times higher. Of this, 50 percent is sand. For e.g., if the requirement of sand is 15,000 million tons, manufactured sand constitutes 50 percent.

Manufactured sand consumption has picked up from 2008, and the uptake was faster because of a decline in the volume of supplied river sand. While river sand registered a negative CAGR (-2 percent), the manufactured sand is registering a CAGR of 35 percent for the past couple of years. Fine aggregate offers better benefit and value than the coarse aggregator.

What kind of investments or expansion plans are you witnessing in the m-sand segment?

Realizing the poetical of the segment, there is a steady flow of investments. The number of players in m-sand segment has increased which encourages healthy competition. Also, there are players who are looking at aggregators and m-sand as apart of portfolio diversification. Globally if you take the leading cement players, they are present in the cement, RMC and aggregator segments. The trend will soon follow in India.

You mentioned changing global trends in the usage of m-sand. Can you elaborate further?

Globally, Japan is the first country to develop technology in the engineered sand segment because of the shortage of river sand. In Asia, China took the first move in the same direction because of the shortfall faced. Now that India also has challenges with river sand, the country has adopted Japanese technology to manufacture m- sand in the country. The adoption of m-sand in Europe and US is comparatively lower as governments in these continents have not imposed restriction on river sand dredging.

Renjini Liza Varghese

Concrete

Ultra Concrete Age

Prof. A. S. Khanna (Retd., IIT Bombay) on how Ultra-high performance concrete (UHPC) improves strength, durability and lifecycle performance.

Published

2 weeks ago

April 1, 2026

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The need of present time is stronger buildings, industrial or common utility buildings, such as Malls, Railway stations, hospitals, offices, bridges etc. For this, there is need of long durable, tough and stable concrete, which could stand under normal and seismic conditions. Tough railway bridges are required for bullet trains to pass without any damage. Railway tunnels, sea-links, coastal roads, bridges and multistorey buildings, are the need of the hour. The question comes, is the normal cement called OPC is sufficient to take care of such requirements or better combination of cements and sand mixtures is required?

Introduction

A good stable building structure can be made with a good quality of cement+sand+water system. Its quality can be enhanced by keeping the density of admixture higher (varies from 30 in normal buildings to bridges etc to 80). Further enhancement in the properties of various cements admixtures is made by adding several additives which give additional strength, waterproofing, flexibility etc. These are called construction chemicals…

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Concrete

NCB Signs MoU With Cement Manufacturer To Boost Construction Skills

Partnership to deliver nationwide training and certification

Published

2 weeks ago

March 31, 2026

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The National Council for Cement and Building Materials (NCB) has signed a memorandum of understanding with a leading cement manufacturer to strengthen skill development and capacity building in the construction sector. The agreement was formalised at NCB premises in Ballabgarh and was signed by the Director General of NCB, Dr L. P. Singh, and the head of technical services at UltraTech Cement Limited, Er Rahul Goel. The collaboration seeks to bring institutional resources and industry expertise into a structured national training effort.

The partnership will deliver structured training and certification programmes across the country aimed at enhancing the capabilities of civil engineers, ready?mix concrete (RMC) professionals, contractors, construction workers and masons. Programme curricula will cover material quality testing, concrete mix proportioning, durability assessment and sustainable construction practices to support improved construction outcomes. Emphasis is to be placed on standardised assessment and certification to raise practice levels across diverse construction roles.

Practical learning elements will include workshops, site demonstrations, technical seminars and exposure visits to plants and RMC facilities to strengthen applied skills and on?site decision making. The Director General indicated confidence that a large number of professionals and workers would be trained over the next three to five years under the initiative. The partnership is designed to complement flagship government schemes such as the Skill India Mission and to align training outputs with national infrastructure priorities.

By combining the council’s technical mandate with industry experience, the initiative aims to develop a more skilled and quality?conscious workforce capable of meeting rising demand in infrastructure and housing. NCB will continue to coordinate programme delivery and quality assurance while industry partners provide practical exposure and technical inputs. The collaboration is expected to support long?term capacity building and more sustainable construction practices nationwide.

Concrete

JSW Cement Commissions Nagaur Plant, Enters North India

New Rajasthan unit boosts capacity to 24.1 MTPA and expands reach

Published

2 weeks ago

March 30, 2026

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JSW Cement has strengthened its national presence by commencing production at its greenfield integrated cement plant in Nagaur, Rajasthan, marking its entry into the north Indian market.

With this commissioning, the company’s installed grinding capacity has increased to 24.1 MTPA, while total clinker capacity, including its joint venture operations, stands at 9.74 MTPA.

The Nagaur facility comprises a 3.30 MTPA clinkerisation unit and a 2.50 MTPA cement grinding unit, with an additional 1.00 MTPA grinding capacity currently under development. Strategically located, the plant is positioned to serve high-growth markets across Rajasthan, Haryana, Punjab and the NCR.

The project has been funded through a mix of equity and long-term debt, with Rs 800 crore allocated from IPO proceeds towards part-financing the unit.

Parth Jindal, Managing Director, JSW Cement, stated that the commissioning marks a key milestone in the company’s ambition to become a pan-India player. He added that the project was completed within 21 months and positions the company to achieve its targeted capacity of 41.85 MTPA by FY29.

Nilesh Narwekar, CEO, JSW Cement, highlighted that the expansion aligns with the company’s strategy to tap into rapidly growing northern markets driven by infrastructure development. He noted that the company remains focused on delivering high-quality, eco-friendly cement solutions while progressing towards its long-term capacity goal of 60 MTPA.

The Nagaur plant has been designed with sustainability features, including co-processing of alternative fuels and a 7 km overland belt conveyor for limestone transport to reduce road emissions. The facility will also incorporate a 16 MW Waste Heat Recovery System to improve energy efficiency and lower its carbon footprint.

JSW Cement, part of the JSW Group, operates across the building materials value chain and currently has eight plants across India, along with a clinker unit in the UAE through its joint venture.