OasisLMS

This session will showcase new information on the use of raw natural pozzolans in concrete mixtures. Natural pozzolans are seeing a resurgence as demand for supplementary cementitious materials for concrete increases. The role of these materials in concrete performance will be presented, including their impact on cement hydration and concrete strength and durability. Presentations will also highlight practical use of these materials in concrete construction. The intended audience includes engineers, contractors, researchers, and students interested in the performance of natural pozzolans.


The contents of this course include 3 recorded presentations from the ACI 2021 Spring Convention:
• Reactivity of Raw Pozzolans and Performance in Concrete; Mahipal Kasaniya, University of New Brunswick
• Characterization, Performance and Development of High-Quality, Raw Natural Pozzolan from the Kirkland Mine; Ivan Diaz-Loya, Boral Resources
• Characteristics and Performance of Three Types of Raw Natural Pozzolans for Use in Concrete; Jan Olek, Purdue University

1. Recall new and emerging sources of supplementary cementitious materials for concrete production.
2. Describe how raw natural pozzolans affect concrete early and late-age properties, including effect on strength gain and durability.
3. Describe the differences between the many types of raw natural pozzolans; unaltered pozzolans, such as pumice and perlite, altered volcanic pozzolans, and sedimentary pozzolans, such as calcined clay.
4. Evaluate the properties of concrete in resisting ASR attack, sulfate attack, and chloride ingress with use of blended cements containing raw natural pozzolans.

Study the materials included in this module. Then, complete and pass the corresponding 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (1.0 PDH).
Continuing Education Credit: 0.1 CEU (1.0 PDH)
Approved AIA and ICC
Access Period: 30 days