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Promoting a circular economy is the key

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Prakhar Shrivastava, Corporate Quality, JK Cement, sheds light on the use of automation and sustainability in processing gypsum.

Explain the role of gypsum in the cement manufacturing process?
Gypsum plays a crucial role in manufacturing cement. It is used to delay cement setting by slowing down the reaction of mixing cement with water to prevent rapid hardening of cement and increase its workability for construction. Gypsum enhances cement strength at all ages. If we grind the clinker without gypsum, then the cement will set immediately after mixing with water and the strength development will be lesser.

What are the proportions of gypsum that are added in various types of cements produced? Tell us in details of the composition and percentage.
Presently different types of gypsum are available and are being added to meet the SO3 in cement, like mineral gypsum, chemical, phospho, marine gypsum, anhydrite, FGD and synthetic gypsum. The composition and percentage depend on the chemistry of clinker and gypsum to adhere to the desired SO3 target in cement. Normally the percentage addition of gypsum is 5 to 8 in cement mix as per gypsum quality and its availability. Few gypsums, which have higher purity above 85 per cent like imported mineral, anhydrite and phospho gypsum usage are less, whereas, Indian mineral gypsum having purity <40 per cent required higher percentage usage to meet the SO3 requirement.

Tell us about the process of obtaining gypsum by your organisation. What are the key resources utilised?
The different sources of gypsum and vendors are identified by our central procurement team. After getting the test report and sample from the supplier, and its testing in our laboratories then clearance by the QC team about the desired quality of gypsum, the procurement of bulk quantity of gypsum gets initiated. The gypsum is transported by road and rail to the plant. The receipt quality and quantity of gypsum is continuously monitored and if any deviation is found, it is immediately informed to the procurement team as well as the vendor. After this, the gypsum is used to feed into the hopper by Raw material handling equipment (eg. JCB, Payloader etc.) and its usage control through a weight feeder from CCR (central control room) to get the desired SO3 level according to the product requirement during the cement manufacturing process.

Tell us about the key technical feasibility factors that make gypsum viable for mixing with cement.
The size, purity, P2O5, chloride and moisture content of gypsum are the key technical feasibility factors that make gypsum viable for its usages. High moisture content and powdery gypsum are a major concern during cement production whereas the dry and adequate size gypsum is easy to use.
Similarly, low purity gypsum required higher usage to meet the SO3 requirement in cement resulted in increased insoluble residue (IR), which affected the product quality and also the fly ash addition in PPC. To consume such a low purity gypsum requirement of high purity gypsums like imported mineral gypsum to meet the SO3 and IR requirement which is not a cost effective solution.
Phospho gypsum has higher P2O5, which causes delay in the setting of cement and lesser early days compressive strength. Hence, it is mandatory to use it in a very controlled manner by blending it with other available gypsums to meet the product quality requirement.

What is the preparation or processing required to make gypsum ready to mix with the clinker?
Presently, preparation or processing of the different types of gypsum is done by handling equipment manually (eg. loader, dozer and JCB, etc.) as per recommended target and quality. Mixed gypsum is then fed to a separate hopper and controlled by a weight feeder and a controlled quantity of gypsum is mixed with clinker in the cement grinding process.
A more suitable solution to prepare uniform gypsum is to mix it separately before feeding
by blending various types of gypsums through
multi hoppers and controlled dosage to get targeted gypsum quality.

How does automation help in obtaining this mineral and increasing productivity of the unit?
The automation gives a timely update about the whole process to track the status and progress of procured material which saves time and avoids delays in procurement. It also helps to increase efficiency by fast process, productivity, growth and profitability of the organisation.
In all our units, the LIMs System has been implemented. All the quality test equipment is linked with the LIMs software and test results are directly transferred in LIMs and SAP. The quality analysis results of each type of gypsum and vendor wise are available in the automation system which helps to identify the deviation and consistency in quality thereby reducing error and confusion.

What are the sustainability measures taken by your organisation in obtaining and processing the desired quality of gypsum?
As part of our sustainability goals we have taken significant measures to replace natural or mineral gypsum with industrial waste. All our manufacturing units are utilising available industrial waste such as chemical gypsum, anhydrite gypsum, FGD, synthetic gypsum etc.
Blending of mineral gypsum with industrial waste as an economical and sustainable solution to replace natural minerals. Promoting a circular economy is our key pillar of the sustainability journey to reduce the environmental impact of our product by replacing natural resource consumption with industrial wastes which in turn has reduced our dependency on natural resources and is economical as well. It benefits our business, society and the environment by eliminating waste and decoupling our growth from the consumption of natural resources.

What are the major challenges faced in handling and obtaining gypsum for the manufacturing process?
The major challenges in handling and obtaining gypsum are moisture, SO3 and purity, which are the key parameters in deciding the quality of gypsum. Some minor elements also affect the quality of gypsum like phosphorus pentoxide and chloride percentage.
The deviation in SO3 content increases or decreases the quantity of gypsum in cement. Also, typically, a decrease in the SO3 content increases the insoluble residues, especially in Indian mineral gypsum, which causes higher IR in cement and lowers the performance/durability of cement.
In chemical gypsum, the main concern is the moisture of material and colour, which directly affects the operation with reference to jamming, choking and product quality.

-Kanika Mathur

Concrete

Budget 2026–27 infra thrust and CCUS outlay to lift cement sector outlook

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Higher capex, city-led growth and CCUS funding improve demand visibility and decarbonisation prospects for cement

Mumbai

Cement manufacturers have welcomed the Union Budget 2026–27’s strong infrastructure thrust, with public capital expenditure increased to Rs 12.2 trillion, saying it reinforces infrastructure as the central engine of economic growth and strengthens medium-term prospects for the cement sector. In a statement, the Cement Manufacturers’ Association (CMA) has welcomed the Union budget 2026-27 for reinforcing the ambitions for the nation’s growth balancing the aspirations of the people through inclusivity inspired by the vision of Narendra Modi, Prime Minister of India, for a Viksit Bharat by 2047 and Atmanirbharta.

The budget underscores India’s steady economic trajectory over the past 12 years, marked by fiscal discipline, sustained growth and moderate inflation, and offers strong demand visibility for infrastructure linked sectors such as cement.

The Budget’s strong infrastructure push, with public capital expenditure rising from Rs 11.2 trillion in fiscal year 2025–26 to Rs 12.2 trillion in fiscal year 2026–27, recognises infrastructure as the primary anchor for economic growth creating positive prospects for the Indian cement industry and improving long term visibility for the cement sector. The emphasis on Tier 2 and Tier 3 cities with populations above 5 lakh and the creation of City Economic Regions (CERs) with an allocation of Rs 50 billion per CER over five years, should accelerate construction activity across housing, transport and urban services, supporting broad based cement consumption.

Logistics and connectivity measures announced in the budget are particularly significant for the cement industry. The announcement of new dedicated freight corridors, the operationalisation of 20 additional National Waterways over the next five years, the launch of the Coastal Cargo Promotion Scheme to raise the modal share of waterways and coastal shipping from 6 per cent to 12 per cent by 2047, and the development of ship repair ecosystems should enhance multimodal freight efficiency, reduce logistics costs and improve the sector’s carbon footprint. The announcement of seven high speed rail corridors as growth corridors can be expected to further stimulate regional development and construction demand.

Commenting on the budget, Parth Jindal, President, Cement Manufacturers’ Association (CMA), said, “As India advances towards a Viksit Bharat, the three kartavya articulated in the Union Budget provide a clear context for the Nation’s growth and aspirations, combining economic momentum with capacity building and inclusive progress. The Cement Manufacturers’ Association (CMA) appreciates the Union Budget 2026-27 for the continued emphasis on manufacturing competitiveness, urban development and infrastructure modernisation, supported by over 350 reforms spanning GST simplification, labour codes, quality control rationalisation and coordinated deregulation with States. These reforms, alongside the Budget’s focus on Youth Power and domestic manufacturing capacity under Atmanirbharta, stand to strengthen the investment environment for capital intensive sectors such as Cement. The Union Budget 2026-27 reflects the Government’s focus on infrastructure led development emerging as a structural pillar of India’s growth strategy.”

He added, “The Rs 200 billion CCUS outlay for various sectors, including Cement, fundamentally alters the decarbonisation landscape for India’s emissions intensive industries. CCUS is a significant enabler for large scale decarbonisation of industries such as Cement and this intervention directly addresses the technology and cost requirements of the Cement sector in context. The Cement Industry, fully aligned with the Government of India’s Net Zero commitment by 2070, views this support as critical to enabling the adoption and scale up of CCUS technologies while continuing to meet the Country’s long term infrastructure needs.”

Dr Raghavpat Singhania, Vice President, CMA, said, “The government’s sustained infrastructure push supports employment, regional development and stronger local supply chains. Cement manufacturing clusters act as economic anchors across regions, generating livelihoods in construction, logistics and allied sectors. The budget’s focus on inclusive growth, execution and system level enablers creates a supportive environment for responsible and efficient expansion offering opportunities for economic growth and lending momentum to the cement sector. The increase in public capex to Rs 12.2 trillion, the focus on Tier 2 and Tier 3 cities, and the creation of City Economic Regions stand to strengthen the growth of the cement sector. We welcome the budget’s emphasis on tourism, cultural and social infrastructure, which should broaden construction activity across regions. Investments in tourism facilities, heritage and Buddhist circuits, regional connectivity in Purvodaya and North Eastern States, and the strengthening of emergency and trauma care infrastructure in district hospitals reinforce the cement sector’s role in enabling inclusive growth.”

CMA also noted the Government’s continued commitment to fiscal discipline, with the fiscal deficit estimated at 4.3 per cent of GDP in FY27, reinforcing macroeconomic stability and investor confidence.

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Concrete

Steel: Shielded or Strengthened?

CW explores the impact of pro-steel policies on construction and infrastructure and identifies gaps that need to be addressed.

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Going forward, domestic steel mills are targeting capacity expansion
of nearly 40 per cent through till FY31, adding 80-85 mt, translating
into an investment pipeline of $ 45-50 billion. So, Jhunjhunwala points
out that continuing the safeguard duty will be vital to prevent a surge
in imports and protect domestic prices from external shocks. While in
FY26, the industry operating profit per tonne is expected to hold at
around $ 108, similar to last year, the industry’s earnings must
meaningfully improve from hereon to sustain large-scale investments.
Else, domestic mills could experience a significant spike in industry
leverage levels over the medium term, increasing their vulnerability to
external macroeconomic shocks.(~$ 60/tonne) over the past one month,
compressing the import parity discount to ~$ 23-25/tonne from previous
highs of ~$ 70-90/tonne, adds Jhunjhunwala. With this, he says, “the
industry can expect high resistance to further steel price increases.”

Domestic HRC prices have increased by ~Rs 5,000/tonne
“Aggressive
capacity additions (~15 mt commissioned in FY25, with 5 mt more by
FY26) have created a supply overhang, temporarily outpacing demand
growth of ~11-12 mt,” he says…

To read the full article Click Here

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Concrete

JK Cement Commissions 3 MTPA Buxar Plant, Crosses 31 MTPA

Company becomes India’s fifth-largest grey cement producer

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JK Cement  has commissioned its new 3 MTPA grey cement plant in Buxar, Bihar, taking the company’s total installed capacity to 31.26 million tonnes per annum (MTPA) and moving it past the 30 MTPA milestone. With this addition, JK Cement now ranks among the top five grey cement manufacturers in India, strengthening its national presence.

Commenting on the development, Dr Raghavpat Singhania, Managing Director, JK Cement, said, “Crossing 31 MTPA is a significant turning point in JK Cement’s expansion and demonstrates the scale, resilience, and aspirations of our company. In addition to making a significant contribution to Bihar’s development vision, the commissioning of our Buxar plant represents a strategic step towards expanding our national footprint. We are committed to developing top-notch manufacturing capabilities that boost India’s infrastructure development and generate long-term benefits for local communities.”

Spread across 100 acres, the Buxar plant is located on the Patna–Buxar highway, enabling efficient distribution across Bihar and neighbouring regions. While JK Cement entered the Bihar market last year through supplies from its Prayagraj plant, the new facility will allow local manufacturing and deliveries within 24 hours across the state.

Mr Madhavkrishna Singhania, Joint Managing Director & CEO, JK Cement, said, “JK Cement is now among India’s top five producers of grey cement after the Buxar plant commissioning. Our capacity to serve Bihar locally, more effectively, and on a larger scale is strengthened by this facility. Although we had already entered the Bihar market last year using Prayagraj supplies, local manufacturing now enables us to be nearer to our clients and significantly raise service standards throughout the state. Buxar places us at the center of this chance to promote sustainable growth for both the company and the region in Bihar, a high-growth market with strong infrastructure momentum.”

The project has involved an investment of Rs 5 billion. Commercial production began on 29 January 2026, following construction commencement in March 2025. The company said the plant is expected to generate significant direct and indirect employment and support ancillary industrial development in the region.

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