This standard (Part 1) encompasses the production, physical, and chemical specifications of Portland pozzolana cement - fly ash pozzolana. The Indian Standard (Part 1) was adopted by the Bureau of Indian Standards following approval by the Civil Engineering Division Council, upon finalization of the draft by the Cement and Concrete Sectional Committee.

The standard outlines both the chemical and physical prerequisites of the cement, including aspects like fineness, compressive strength, and soundness. Additionally, it delineates the storage conditions for the cement.

Portland Pozzolana Cement, a type of Blended Cement, is crafted by either inter-grinding OPC clinker with gypsum and pozzolanic materials in precise ratios or by separately grinding OPC clinker, gypsum, and pozzolanic materials like fly ash, then thoroughly blending them in specific proportions. According to the standard, the fly ash component must constitute no less than 15% and no more than 35% by mass of Portland pozzolana cement.

Pozzolana, like fly ash, primarily consists of siliceous material. While it possesses minimal or no inherent cementitious properties, when finely divided and in the presence of water, it reacts with calcium hydroxide at ambient temperature to form compounds with cementitious properties. Portland-pozzolana cement must adhere to the chemical and physical specifications outlined in the standard.

TESTS

The specified tests must be conducted for PPC fly ash-based cement.

• Insoluble Residue

• Loss of ignition

• Fineness test

• Soundness test

• Setting time

• Compressive Strength

• Transverse Strength Test

• Drying shrinkage

• Chemical testing

• Fly ash testing

An appropriately maintained laboratory is required for conducting various tests as per the methods specified in the standard.

The manufacturer is responsible for demonstrating compliance with this standard for Portland Pozzolana Cement-fly ash based. Each bag or drum of cement must bear the BIS Standard Mark (ISI Mark) on its label, provided the material meets specification requirements. Marking procedures must adhere to IS 1489 (Part 1). Additionally, manufacturers need a BIS license from the Bureau of Indian Standards to use the standard mark (ISI Mark). This license is granted upon successful assessment of manufacturing infrastructure, quality control measures, testing capabilities, and production processes.

INDIAN STANDARD FOR CEMENTS

BIS CERTIFICATION PROCESS

Acquiring a BIS license requires a comprehensive review of manufacturing infrastructure, quality control abilities, testing resources, and production procedures. This thorough assessment guarantees that products not only adhere to regulations but also prioritize consumer safety and reliability.

NOTE:

For comprehensive guidance on the BIS ISI Certification process, please explore:

• Procedure for Domestic Manufacturers

• Procedure for Foreign Manufacturers

WHY USE ABSOLUTE VERITAS?

Absolute Veritas is a prominent organisation from the private sector of India primarily dealing with the Inspection, Testing, Audits, Certification of products& consulting services to various industries in India and worldwide, ensuring compliance with regulatory standards and industry requirements. Offering a comprehensive range of services including product certification, testing, training, auditing, and compliance services, Absolute Veritas helps manufacturers and importers achieve higher production efficiency and quality standards.

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For any questions regarding the most recent update on FMCS registration licenses, please reach out to us via email at cs@absoluteveritas.com