RESULTS FOR POZZOLAN

Definition: a siliceous or silico-aluminous material that will, in finely divided form and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperatures to form compounds having cementitious properties (there are both natural and artificial pozzolans).- ACI Concrete Terminology

A pozzolan is a siliceous or siliceous and aluminous material that in itself possesses little or no cementitious value but will, in finely divided form and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperatures to form compounds having cementitious properties. It is therefore classified as cementitious material. There are both natural, artificial, and silica fume pozzolans.

Informational Resources News, Events & Engagements ACI Web Pages

Informational Resources on pozzolan

STANDARDS, PRACTICES and MANUALS ON POZZOLAN

ACI PRC-211.1-22: Selecting Proportions for Normal-Density and High Density-Concrete - Guide

ACI PRC-225-25: Selection and Use of Hydraulic Cements—Guide

ACI PRC-232.1-12 Report on the Use of Raw or Processed Natural Pozzolans in Concrete

ACI PRC-207.4-20: Cooling and Insulating Systems for Mass Concrete

ACI PRC-232.2-18: Report on the Use of Fly Ash in Concrete

ACI PRC-207.3-18: Report on Practices for Evaluation of Concrete in Existing Massive Structures for Service Conditions

ACI PRC-212.3-16 Report on Chemical Admixtures for Concrete

ACI PRC-304S-00 Guide for Measuring, Mixing, Transporting, and Placing Concrete - Spanish Language (Reapproved 2009)

ACI PRC-308S-01 Guide to Curing Concrete - Spanish Language

ACI PRC-211.8-15 (Reapproved 2023) Guide to Troubleshooting Concrete Mixture Issues as Influenced by Constitutive Materials, Jobsite Conditions

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JOURNAL Articles ON POZZOLAN

Pre-treatment and Processing of Coal Combustion By-products as Sustainable Cement Replacements (Prepublished)

Publication: Materials Journal
Date: 9/23/2026

Valorization of Tunnel Muck into Low-Carbon Concrete: A Green Process Linking Micro-Scale Reaction Mechanisms to Macro-Scale Performance and Life-Cycle Environmental Benefits (Prepublished)

Publication: Materials Journal
Date: 9/23/2026

Pozzolan-Mitigated Alkali-Silica Reaction in Hungry Horse Dam: 70-Year Contrast Between Interior and Exterior Concretes

Publication: Materials Journal
Date: 9/1/2026

Iron-Rich Vanadium Tailings as a Supplementary Cementitious Material (Prepublished)

Publication: Materials Journal
Date: 7/10/2026

Self-Healing Capability of Ambient-Cured High-Calcium-Based Alkali-Activated Engineered Composites

Publication: Materials Journal
Date: 7/1/2026

Investigating Pozzolanic Reactivity of Ground Ferronickel Slag Through the R3 Test for Its Potential Use as Alternative Supplementary Cementitious Material

Publication: IJCSM
Date: 3/31/2026

Mitigating Chloride-Ion Ingress in Cement Composite Using Nanosilica

Publication: Materials Journal
Date: 3/1/2026

Optimizing Pozzolanic Concrete Mixtures Using Machine Learning and Global Sensitivity Analysis Techniques

Publication: IJCSM
Date: 1/31/2026

Portland-Limestone Cement Concrete Incorporated with Clay Pozzolana

Publication: Materials Journal
Date: 1/1/2026

Thermodynamic Modeling of Chemical Acidification of Cementitious Paste (Open Source)

Publication: Materials Journal
Date: 9/1/2025

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Practice oriented papers and articles ON POZZOLAN

Formulation of Hybrid Cements based on Construction Demolition Waste

Publication: Special Publication
Date: 6/1/2026

Damage Progression and Mitigation Potential in Iron Sulfide- Bearing Concrete under Electrochemical Acceleration

Publication: Special Publication
Date: 6/1/2026

Dissolution study of siliceous powders for ASR mitigation

Publication: Special Publication
Date: 6/1/2026

Industrially produced mechanochemically activated clay - the first of its kind

Publication: Special Publication
Date: 5/1/2026

Behaviour of quaternary eco-mortars from carbonated wastes

Publication: Special Publication
Date: 5/1/2026

Porosity, microstructure, durability and performance of low clinker cements

Publication: Special Publication
Date: 5/1/2026

What’s Next After Type IL Cement and How Can We Use Blended Cements Successfully?

Publication: Concrete International
Date: 2/1/2026

Optimizing Concrete with Pozzolanic Reactivity

Publication: Concrete International
Date: 1/1/2026

Chemical Reactivity Assessment of Glass Powder in R³ Method Synthetic Concrete Pore Solution by Accelerated Solubility Testing

Publication: Special Publication
Date: 6/18/2024

Enhancing Reactivity of Calcined Clays for Sustainable Cement Production through Optimization of Rotary Kiln Parameters

Publication: Special Publication
Date: 6/17/2024

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Certification Resources on POZZOLAN

There are no Certification Resources on pozzolan

View all ACI Certification Resources on pozzolan »

Education Publications on POZZOLAN

E3-25: Cementitious Materials for Concrete

View all ACI Education Publications on pozzolan »

Online Learning - ACI University on POZZOLAN

On-Demand Course: Raw Natural Pozzolans in Concrete

On-Demand Course: E3-25: Cementitious Materials for Concrete (Part 2)

On-Demand Course: E3-25: Cementitious Materials for Concrete (Part 1)

On-Demand Course: Introduction to Cementitious Materials for Concrete (Part 2)

On-Demand Course: Evaluation and Use of Harvested Fly Ash and Ground Bottom Ash as SCM in Concrete

On-Demand Course: The Role of Silica Fume in Reducing the Carbon Footprint of Concrete

On-Demand Course: Use of Bottom Ash as a Concrete SCM

On-Demand Course: The A to Zs of Supplementary Cementitious Material Reactivity

View all ACI Online Learning Courses on pozzolan »

FREE ONLINE EDUCATION PRESENTATIONS ON POZZOLAN (VIDEOS)

A Condensed Look at Liquid Densifiers

by Tarr

A New Test for Measuring Soluble Alkalis in SCMs and Predicting Their Influence on Concrete Pore Solution

by Farshad Rajabipour

Activation of Na- and Ca- Bentonites: Comparison of Thermal and Mechanical Treatments

by Alastair Marsh

Are High-Alkali Natural Pozzolans (HANP) Capable of Mitigating Alkali-Silica Reaction (ASR) in Concrete?

by Wang

Assessing Deterioration of Concrete Structures using Self-Sufficient Reactive-Transport Modeling

by Isgor

Bottom Ash for Use as a Pozzolan in Concrete

by Cole Spencer

Carboaluminates: The Overlooked Key to High Performance, Low-Carbon LC3 Cements

by Zunino

Changes to ASTM Cement & Concrete Standards to Facilitate Sustainable Initiatives

by R Doug Hooton

Characterization and Quantification of the Pozzolanic Reactivity of Natural and Non-Conventional Pozzolans

by Farshad Rajabipour

Chloride Binding Capacity of Pastes and Scaling Resistance of Concretes with Natural and Non-Traditional Pozzolans (NNPs) Exposed to Different Types of Chloride Solutions

by Tokpatayeva

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FREQUENTLY ASKED QUESTIONS ON POZZOLAN

Question: Definition of concrete, hydraulic cement, mortar, and grout

Question: Hardening of hydraulic cement

Question: The effect of entrained air on the workability of concrete

Question: Why is Type IV cement rarely produced and Type V cement rarely used?

Question: What is a pozzolan?

Question: What does a pozzolan do in the concrete?

Question: Using and handling pozzolans

Question: Pozzolans in mass concrete

Question: Importance of using pozzolans in hydraulic and environmental structures

Question: Are pozzolans all alike?

View all Frequently Asked Questions on pozzolan»

ACI Web Pages on pozzolan

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RESULTS FOR POZZOLAN

Informational Resources on pozzolan

STANDARDS, PRACTICES and MANUALS ON POZZOLAN

JOURNAL Articles ON POZZOLAN

Practice oriented papers and articles ON POZZOLAN

Certification Resources on POZZOLAN

Education Publications on POZZOLAN

Online Learning - ACI University on POZZOLAN

FREE ONLINE EDUCATION PRESENTATIONS ON POZZOLAN (VIDEOS)

FREQUENTLY ASKED QUESTIONS ON POZZOLAN

News, Events & Engagements on pozzolan

EVENTS ON POZZOLAN

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