
Portland Slag Cement (PSC) is a type of blended cement produced by mixing Portland cement clinker with granulated blast furnace slag. Known for its durability, workability, and resistance to harsh environmental conditions, PSC is widely used in construction applications where high strength and durability are needed, such as in concrete structures, marine construction, and large-scale building projects. The use of slag in PSC enhances resistance to sulfate and chloride, offering improved performance in challenging environments.
The Ministry of Commerce and Industry, via the Department for Promotion of Industry and Internal Trade (DPIIT), has mandated BIS certification for Portland Slag Cement under IS 455: 1989. Effective January 1, 2024, all manufacturers of Portland Slag Cement must obtain BIS certification to meet national quality standards. Compliance with BIS certification, indicated by the ISI mark, ensures that PSC meets the necessary criteria for durability and safety, supporting consistent quality in the construction sector.
BIS certification for Portland Slag Cement under IS 455: 1989 enforces stringent quality and performance standards, reducing risks associated with low-quality cement, which can compromise structural integrity. The Cement (Quality Control) Order, 2023, legally requires manufacturers to comply, with penalties for non-compliance under the Bureau of Indian Standards Act, 2016. Certification assures end-users of the quality, reliability, and long-term safety of the product, thereby supporting the infrastructure and construction industries.
Indian Standard IS 455: 1989 specifies the requirements for Portland Slag Cement, including chemical composition, physical properties, setting times, and compressive strength. It also addresses durability factors like resistance to sulfate and chloride, ensuring that PSC performs well in a range of environmental conditions. BIS certification ensures that PSC meets these standards, enhancing the resilience of construction projects in India.
The BIS certification process for Portland Slag Cement includes several key steps:

BIS certification for Portland Slag Cement under IS 455: 1989 is essential for manufacturers aiming to meet quality, safety, and performance benchmarks in the Indian market. Certified products ensure reliability, supporting consumer confidence and establishing a strong foundation for quality in infrastructure projects.
Navigating BIS certification can be complex. EVTL India, a leading consultancy, provides comprehensive support to manufacturers through every step of the BIS certification process. From managing documentation to BIS portal handling, EVTL India ensures a smooth and successful certification journey, boosting product compliance and market reach. Additionally, EVTL India offers post-certification assistance, helping clients maintain standards and manage renewals effectively.