Road structures can necessitate horizontal and vertical formwork

01 Jun 2019 Editorial Team

When JMC Projects (India) started to implement the Mankhurd flyover project, the structural design majorly influenced the choice of formwork. The horizontal parts of the flyover were to be built with precast segments in some sections and in-situ concrete in others. The formwork had to be chosen accordingly.

“We opted for a customised cribs formwork for the in-situ concrete because this formwork suited the site conditions both technically and economically,” explains More. “We had to work in a confined area with ongoing traffic, so using cribs allowed us greater spans for passing traffic. Cribs formwork can be easily erected and dismantled with the help of a crane and supports a greater slab thickness. There could have been several other options like as deck, shoring or flex formwork; however, we preferred to use our own asset bank.”

“For precast segments, custom-made formwork in mild steel is suitable and can be designed as per the desired loading conditions unlike modular panels,” adds More. “This formwork has a two to three-day cycle; it is easy to align and gives the desired finish. It can be best handled with hydraulic systems. As we had to separately cast the peir (column) and the peir cap because of the large size, we needed separate vertical formwork for these elements.” Custom-made formwork in mild steel, which supports greater loads/pressured, was preferred over other modular formwork. This had a two to three-day cycle and necessitated the use of a crane.

JMC Projects (India) fabricated all this formwork itself.

CHARU BAHRI

Road construction necessitates formwork for retaining walls, culverts, tunnels and flyovers (in-situ obligatory span or precast segments). The type of structure is the foremost factor influencing the choice of formwork. “Other factors influencing the choice of formwork are desired finish, site safety needs, targeted cycle times, availability, repetitions needed, weight of the formwork and handling ability, whether single use or multipurpose, repairs and maintenance costs, training cost and client specifications,” says Sachin More, Head, Formwork, JMC Projects (India). When JMC Projects (India) started to implement the Mankhurd flyover project, the structural design majorly influenced the choice of formwork. The horizontal parts of the flyover were to be built with precast segments in some sections and in-situ concrete in others. The formwork had to be chosen accordingly. “We opted for a customised cribs formwork for the in-situ concrete because this formwork suited the site conditions both technically and economically,” explains More. “We had to work in a confined area with ongoing traffic, so using cribs allowed us greater spans for passing traffic. Cribs formwork can be easily erected and dismantled with the help of a crane and supports a greater slab thickness. There could have been several other options like as deck, shoring or flex formwork; however, we preferred to use our own asset bank.” “For precast segments, custom-made formwork in mild steel is suitable and can be designed as per the desired loading conditions unlike modular panels,” adds More. “This formwork has a two to three-day cycle; it is easy to align and gives the desired finish. It can be best handled with hydraulic systems. As we had to separately cast the peir (column) and the peir cap because of the large size, we needed separate vertical formwork for these elements.” Custom-made formwork in mild steel, which supports greater loads/pressured, was preferred over other modular formwork. This had a two to three-day cycle and necessitated the use of a crane. JMC Projects (India) fabricated all this formwork itself. CHARU BAHRI

Infrastructure Transport

01 Jun 2026

MMRDA advances 250 m on Orange Gate–Marine Drive tunnel

The Mumbai Metropolitan Region Development Authority (MMRDA) has completed 250 m of underground tunnelling for the Orange Gate–Marine Drive Urban Road Tunnel using India’s largest slurry shield tunnel boring machine (TBM) deployed for an urban road project.The project involves twin tunnels extending over 7 km beneath critical transport corridors, including Central Railway, Western Railway and Metro Line 3. The work requires high-precision engineering to navigate densely developed urban infrastructure.Once completed, the tunnel is expected to reduce travel time between Orange Gate and Marin..

Infrastructure Urban

01 Jun 2026

Hindustan Zinc Pays Rs 188.46 Billion in FY26

Hindustan Zinc contributed Rs 188.46 billion to the public exchequer in FY 2025-26, according to its 9th Tax Transparency Report. The contribution, equivalent to 46 per cent of the company’s revenue, included direct and indirect taxes, government royalties, dividends to the Government of India, withholding taxes and other statutory levies.The company’s five-year cumulative contribution to the exchequer stood at Rs 915.72 billion. In FY26, Hindustan Zinc reported revenue of Rs 408.44 billion, EBITDA of Rs 221.62 billion and profit after tax of Rs 138.32 billion. It also achieved its highest..

Infrastructure Urban

01 Jun 2026

World of Concrete India 2026 Opens in Mumbai

Informa Markets in India will host the 12th edition of World of Concrete India 2026 from 3–5 June 2026 at the Bombay Exhibition Centre, Mumbai. The specialised B2B exhibition will bring together manufacturers, suppliers, contractors, developers, architects, consultants, infrastructure companies, project leaders and government stakeholders.The event is expected to feature over 350 brands and more than 18,000 trade professionals. It will cover concrete and cement, dry mortar, precast technologies, formwork, construction chemicals, industrial and commercial flooring, scaffolding, safety solutio..