Given its key role in construction and urban development, the production levels of cement continue to rise every year. As important as cement is, the process to manufacture it is also a major environmental concern. The production of clinker, a key ingredient in cement, is a chief source of emission of noxious gases, especially carbon dioxide.
In the cement manufacturing process, a mixture of limestone and clayey materials is fed to a kiln operating at 14000C. The clinker production process is highly energy-intensive and releases gaseous effluents. For 1 tonne of cement produced, 0.6 to 1 tonne of carbon dioxide is released. In addition to clinker production, there are other processes in cement manufacturing that give off CO2. But cement is so indispensable in all walks of life; it is hard to imagine a world without cement production. Can there be a viable substitute for cement?
Globally, the cement industry has taken stock of its carbon footprint, and has now begun to function in line with the Paris Climate Accord. This has been found to have a multi-fold benefit, as not only do companies attain their sustainability goals, but investors and stock exchanges prefer organisations with sustainable roadmap.
Companies around the world are also actively developing carbon capture and storage technologies, which are also being tested during cement production, along with carbon cure clinkers. India is actively looking forward to these technologies as the future of carbon neutrality. Some of the technologies used in India towards this purpose include clinker factor reduction and thereby bring down their carbon dioxide emissions by using fly ash, ground granulated blast furnace slag (GGBS), and Calcined clay as primary materials.
Continue reading your story on the app
Continue reading your story in the magazine
Tepid Demand: Awaiting Projects Execution
The industry has a tepid demand in 2019. However, towards the end of the year there were signs of revival and the industry is hopeful to clock 8-10 percent growth in FY2020-21. But, it all depends on how sooner the government’s projects are put on track.
We have lined up few capexes, the payback period are quite attractive
In FY19, our Satna cluster’s utilization levels were at 90 percent, says VIJAY AGGARWAL, Managing Director, Prism Johnson
Ready for Future: India's warehousing sector
The warehousing sector in India is at the threshold of a new era. From simple godowns and sheds it is evolving into an organised sector with highly automated warehouse mechanism catering to the distinctive needs of each industry.
Policy and regulatory push needed for logistics sector
After entering the spotlight in 2018, the logistics and warehousing sector had an average 2019 due to the overall economic slowdown and global headwinds.
Over the next decade, business opportunities in logistics and industrial parks are going to be robust - Dr. Niranjan Hiranandani CMD, Hiranandani Communities
As India’s new-age economy – including e-commerce and organized retail - morph into the larger quantum of growth, in sync with the same, we have seen commercial real estate throw up some surprises.
Green Cement: A Step Closure to Sustainable Construction Green Cement
Cement is a strong binding agent or adhesive, which serves as the primary ingredient in concrete.
High-performance High-Speed Doors
High Performance Doors are automatic doors used for fast access between internal and external areas of buildings.
Komatsu, L&T and Scania reaffirm commitment to the CE Industry
Komatsu, Scania and L&T Construction Equipment (LTCEL) have put up a panoramic display of 19 machines, making it one of the most comprehensive displays of Construction, Earthmoving and Road Machinery.
Addressing the Warehousing & Logistics Woes
Budget 2020 gave the warehousing and logistics sector the much-needed oxygen through monetary support and supportive policy measures, explores EPC World
Budget 2020: A Mixed Bag of Hits & Misses
While the Union Budget has brought in several reasons for India’s infrastructure and construction industry to cheer and applaud, voices from the market draw out mixed sentiments from the stakeholders. Veena Kurup writes…
An Exclusive Interview With Nandakumar Narasimhan
The Little Red Train
A Room for Dad
Before Mom passed, I made a promise to her
THE DANGAL IN THE JUNGLE, PART 1
YOU KNOW YOU’RE SOMEBODY WHEN YOU’VE APPEARED ON AN INDIAN DANGAL POSTER — IN OTHER WORDS, IN A WRESTLING ADVERTISEMENT.
WOUNDS AND THE WOMB
JULIE PETERS explores how to heal a relationship with the sacred womb, a place of death, life, and possibilities.
Giant squirrels, giant lessons? Animal chaplain SARAH BOWEN explores what squirrels can show us about mindfulness.
E8 Caste and the Indian Tech Ivies
IIT grads are highly sought after in Silicon Valley. Are they bringing deep-rooted prejudices with them?
I was happily married, happily employed, just plain happy. Until the accident
IN SEASON Chickpeas (GARBANZO BEANS)
Chickpeas appear in early recordings in Turkey well over 5000 years ago. India produces the most chickpeas worldwide but they are grown in more than 50 countries. An excellent source of carbohydrates, protein, fiber, B vitamins, and some minerals, they are a nutritious staple of many diets. The name chickpea comes from the Latin word cancer, referring to the plant family of legumes, Fabaceae. It is also known by its popular Spanish-derived name, the garbanzo bean. Kidney beans, black beans, lima beans, and peanuts are other familiar foods found in this legume family.
When the Signal Goes Out
Government-ordered internet shutdowns are becoming more frequent
Giving More, Taking Less
FRANCOIS BOUDERLIQUE learnt about the basic principle of Nature – to give more than you take – when he left a high-powered banking job in Paris to live and farm in Kutch, India. He realized that his understanding of eco farming was colored by his past and he needed to open his eyes to a new reality.