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Manufactured sand gaining traction

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The state government should device a mechanism to ensure the quality of M-sand distributed in the state. Low quality material not only gives a low quality precast but also affects the durability of concrete, says Joseph Jacob, Director, POABS Group

The state government should device a mechanism to ensure the quality of M-sand distributed in the state. Low quality material not only gives a low quality precast but also affects the durability of concrete, says Joseph Jacob, Director, POABS Group

Manufactured sand or M-sand is gaining popularity among customers as many states have banned the use of river sand. What were the challenges?

M-sand is a registered trademark of POABS. This concept was launched in 2002, in Kerala. The company had some crusher plants and was looking at ways to use crusher dust/ crusher sand—the byproduct from the plants, in concrete. However, there were challenges like the shape of the dust and presence of varied percentages of microcytes. Use of these type of concrete dust can cause durability and load bearing (strength) issues. So, these were used as landfill or dumped. However, with the price of river sand moving upward, and the restriction on extraction of river sand led us to innovate and convert the crusher sand to usable manufactured sand. With the support of College of Engineering Trivandrum, we have established the first M-sand plant in Thiruvananthapuram. Till then the industry was dependent on river sand that is cylindrical in shape which blends well in the concrete mix.

With new concepts come new technologies. Can you describe the technologies being used in manufacturing sand?

The first plant was set up with wet technology. Crushed particles are first passed through a vertical shaft and then through a wet process. While the river sand is cylindrical in shape, crushed sand it is cubical. The cubical shape adds more strength to the concrete. The only challenge now remaining is the removal of microcytes. The Indian Bureau of standards permits use of 150 microns not exceeding 10 percent and 75 microns not exceeding 2 percent in the concrete mixture. When crush sand is washed, in the process we lose 300 and 600 microns. So, challenge was to retain the 300 and 600 microns and remove the 150 and 75 microns from the same lot.

What is your market in m-sand?

Till FY2009 -10, we held 50 percent market share in Kerala. Increase in number of palmers and import of m-sand from the neighboring states has impacted our market share. Also, there is no mechanism in Kerala to check the quality of m-sand distributed in the state. Cheap quality material is easily available in the market at lower rates, and that is chief competition.

What are the regulatory challenges?

There is no quality check for the m-sand coming from different places. The QC is possible only if it is produced locally. If the material is transported from other states, implementing QC check is very difficult. Once such low-grade m-sand is used in concrete, there are ways to check the strength but difficult to gauge durability.

Which segment is your major consumer RMC or retail? And what are your expansion plans?

We have our own RMC business arm. We do cater to both—RMC and the retailers. The demand for m-sand is growing is rising from states where local governments have imposed restrictions on river sand. Most South Indian and West Indian states have moved to m-sand now. Considering the opportunities, we are definitely looking at expanding. We are in advanced talks with some states, though it is too early to divulge details. Currently we operate only in Kerala and Tamil Nadu.

Renjini Liza Varghese

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Concrete

India Sets Up First Carbon Capture Testbeds for Cement Industry

Five CCU testbeds launched to decarbonise cement production

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The Department of Science and Technology (DST) recently unveiled a pioneering national initiative: five Carbon Capture and Utilisation (CCU) testbeds in the cement sector, forming a first-of-its-kind research and innovation cluster to combat industrial carbon emissions.
This is a significant step towards India’s Climate Action for fostering National Determined Contributions (NDCs) targets and to achieve net zero decarbonisation pathways for Industry Transition., towards the Government’s goal to achieve a carbon-neutral economy by 2070.
Carbon Capture Utilisation (CCU) holds significant importance in hard-to-abate sectors like Cement, Steel, Power, Oil &Natural Gas, Chemicals & Fertilizers in reducing emissions by capturing carbon dioxide from industrial processes and converting it to value add products such as synthetic fuels, Urea, Soda, Ash, chemicals, food grade CO2 or concrete aggregates. CCU provides a feasible pathway for these tough to decarbonise industries to lower their carbon footprint and move towards achieving Net Zero Goals while continuing their operations efficiently. DST has taken major strides in fostering R&D in the CCUS domain.
Concrete is vital for India’s economy and the Cement industry being one of the main hard-to-abate sectors, is committed to align with the national decarbonisation commitments. New technologies to decarbonise emission intensity of the cement sector would play a key role in achieving of national net zero targets.
Recognizing the critical need for decarbonising the Cement sector, the Energy and Sustainable Technology (CEST) Division of Department launched a unique call for mobilising Academia-Industry Consortia proposals for deployment of Carbon Capture Utilisation (CCU) in Cement Sector. This Special call envisaged to develop and deploy innovative CCU Test bed in Cement Sector with thrust on Developing CO2 capture + CO2 Utilisation integrated unit in an Industrial set up through an innovative Public Private Partnership (PPP) funding model.
As a unique initiative and one of its first kind in India, DST has approved setting up of five CCU testbeds for translational R&D, to be set up in Academia-Industry collaboration under this significant initiative of DST in PPP mode, engaging with premier research laboratories as knowledge partners and top Cement companies as the industry partner.
On the occasion of National Technology Day celebrations, on May 11, 2025 the 5 CCU Cement Test beds were announced and grants had been handed over to the Test bed teams by the Chief Guest, Union Minister of State (Independent Charge) for Science and Technology; Earth Sciences and Minister of State for PMO, Department of Atomic Energy, Department of Space, Personnel, Public Grievances and Pensions, Dr Jitendra Singh in the presence of Secretary DST Prof. Abhay Karandikar.
The five testbeds are not just academic experiments — they are collaborative industrial pilot projects bringing together India’s top research institutions and leading cement manufacturers under a unique Public-Private Partnership (PPP) model. Each testbed addresses a different facet of CCU, from cutting-edge catalysis to vacuum-based gas separation.
The outcomes of this innovative initiative will not only showcase the pathways of decarbonisation towards Net zero goals through CCU route in cement sector, but should also be a critical confidence building measure for potential stakeholders to uptake the deployed CCU technology for further scale up and commercialisation.
It is envisioned that through continuous research and innovation under these test beds in developing innovative catalysts, materials, electrolyser technology, reactors, and electronics, the cost of Green Cement via the deployed CCU technology in Cement Sector may considerably be made more sustainable.
Secretary DBT Dr Rajesh Gokhale, Dr Ajai Choudhary, Co-Founder HCL, Dr. Rajesh Pathak, Secretary, TDB, Dr Anita Gupta Head CEST, DST and Dr Neelima Alam, Associate Head, DST were also present at the programme organized at Dr Ambedkar International Centre, New Delhi.

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JK Lakshmi Adopts EVs to Cut Emissions in Logistics

Electric vehicles deployed between JK Puram and Kalol units

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JK Lakshmi Cement, a key player in the Indian cement industry, has announced the deployment of electric vehicles (EVs) in its logistics operations. This move, made in partnership with SwitchLabs Automobiles, will see EVs transporting goods between the JK Puram Plant in Sirohi, Rajasthan, and the Kalol Grinding Unit in Gujarat.
The announcement follows a successful pilot project that showcased measurable reductions in carbon emissions while maintaining efficiency. Building on this, the company is scaling up EV integration to enhance sustainability across its supply chain.
“Sustainability is integral to our vision at JK Lakshmi Cement. Our collaboration with SwitchLabs Automobiles reflects our continued focus on driving innovation in our logistics operations while taking responsibility for our environmental footprint. This initiative positions us as a leader in transforming the cement sector’s logistics landscape,” said Arun Shukla, President & Director, JK Lakshmi Cement.
This deployment marks a significant step in aligning with India’s push for greener transport infrastructure. By embracing clean mobility, JK Lakshmi Cement is setting an example for the industry, demonstrating that environmental responsibility can go hand in hand with operational efficiency.
The company continues to embed sustainability into its operations as part of a broader goal to reduce its carbon footprint. This initiative adds to its vision of building a more sustainable and eco-friendly future.
JK Lakshmi Cement, part of the 135-year-old JK Organisation, began operations in 1982 and has grown to become a recognised name in Indian cement. With a presence across Northern, Western, and Eastern India, the company has a cement capacity of 16.5 MTPA, with a target to reach 30 MT by 2030. Its product range includes ready-mix concrete, gypsum plaster, wall putty, and autoclaved aerated fly ash blocks.

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Holcim UK drives sustainable construction

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Holcim UK has released a report titled ‘Making Sustainable Construction a Reality,’ outlining its five-fold commitment to a greener future. The company aims to focus on decarbonisation, circular economy principles, smarter building methods, community engagement, and integrating nature. Based on a survey of 2,000 people, only 41 per cent felt urban spaces in the UK are sustainably built. A significant majority (82 per cent) advocated for more green spaces, 69 per cent called for government leadership in sustainability, and 54 per cent saw businesses as key players. Additionally, 80 per cent of respondents stressed the need for greater transparency from companies regarding their environmental practices.

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