Page 19 - ICJ Jan 2026

TECHNICAL PAPER

[50] Draft IS: 2386: Part-III (2025). “Methods of test for [52] Draft IS: 2386: Part-V (2025),“Methods of test for
aggregates for concrete: Part-III: Determination of aggregates for concrete: Part-V: Petrographic examination
durability properties”, Bureau of Indian Standards, New of aggregates”, Bureau of Indian Standards, New Delhi,
Delhi, India. India.

[51] Draft IS: 2386: Part-IV (2025), “Methods of test for [53] Draft IS: 2430 (2025). “Methods for sampling of aggregates
aggregates for concrete: Part-IV: Determination of for concrete”, Bureau of Indian Standards, New Delhi,
chemical properties and hazardous substances”, Bureau of India.
Indian Standards, New Delhi, India

P. N. OJHA is Joint Director and Head of Centre for Construction Development and Research at
the National Council for Cement and Building Materials (NCCBM), Ballabgarh. He is a nationally and
internationally recognized expert in cement, concrete, and construction materials, with extensive experience
in R&D, performance‑based specifications, durability design, alternate and recycled aggregates, and
utilization of industrial by-products. He represents India in ISO and IRC technical committees and has
authored over 125 research papers and 5 book chapters, contributing significantly to harmonization of Indian
and International Standards. He plays a key leadership role in standardization as Chairman and Member of
several BIS committees and Convener for revision and standard formulation of IS: 383, IS: 2386, IS: 9103, IS:
516, and IS: 1199, including contributions to the revision of IS: 456. Email: pnojhaji@gmail.com

Cite this article: Ojha, P. N. (2026). “Research contributions of national council for cement and building materials in the research-
driven evolution of Indian Standards”, The Indian Concrete Journal, Vol. 100, No. 1, pp. 83-98.

98 THE INDIAN CONCRETE JOURNAL | JANUARY 2026