Indore: As Indore grapples with water shortage, researchers at Shri Govindram Seksaria Institute of Technology and Science (SGSITS) have developed a solution that could transform the city’s construction practices by turning treated sewage water and quarry dust from stone crushing industries into a valuable resource.
Study Findings
A study conducted by MTech scholar Avinash Pandey under the guidance of assistant professor Vivek Tiwari has found that treated sewage water and quarry dust from stone crushing industries can successfully replace freshwater and natural river sand in the production of durable, high-strength concrete.
The research titled, Experimental and Durability Assessment of Concrete Using Alternative Fine Aggregate and Treated Water, emerged from a question posed by veteran structural engineer and SGSITS alumnus HI Mehta: Can treated sewage water be used in construction?
Significance for Indore
The findings assume significance for Indore, where rapid urbanisation through Metro rail works, expansion of the Super Corridor, industrial growth and a boom in highrise housing has sharply increased demand for concrete. Construction activities consume thousands of kilolitres of water annually, often relying on borewell water and tankers at a time when the city has witnessed repeated concerns over depleting water resources.
Testing and Results
The team tested concrete ranging from M30 grade, commonly used in buildings, to M60 and M90 high-performance grades suitable for major infrastructure projects. Potable water was replaced with treated wastewater from sewage treatment plants, while quarry dust was used as an alternative to river sand. “We wanted to find out whether material treated as waste could replace conventional resources in concrete. Our tests showed that, with the right mix, performance need not be compromised,” said Avinash Pandey.
Tiwari said the findings should extend beyond academic journals. “Sustainable alternatives are no longer optional. Our aim is to see such solutions move from laboratories to real projects,” he said.
Industry Response
The study has drawn interest from the construction sector. “If such a solution becomes commercially viable, builders will definitely adopt it. We largely depend on borewell water and tankers for curing and concrete production. From an environmental perspective, it is a welcome option,” said a builder Bhushan Suryawanshi, noting that STPs are already mandatory in several township projects.
Another builder Aayush Joshi termed the innovation promising but urged caution. “The concept appears sustainable considering future water scarcity and concerns over sand mining. However, durability and strength under practical conditions will have to be thoroughly evaluated,” he said.
Recognition and Future
The research, recognised at the 41st Madhya Pradesh Young Scientist Conference and recommended for a Young Scientist Fellowship, offers a practical pathway for conserving potable water, reducing dependence on river sand and promoting a circular economy.
