Concrete / cement

News and Updates

A fire test of an office building floor replica occurring in a fireproof compartment.

How Fire Causes Office-Building Floors to Collapse

March 24, 2020

Engineers and technicians at the National Institute of Standards and Technology (NIST) spent months meticulously recreating the long concrete floors supported

Sticking Together

January 16, 2018

NIST helps to ensure the strength of buildings, bridges, roadways, and other critical structures all over the world. The Material Measurement Lab at NIST makes

Steel-Reinforced Concrete Building with Severe Corrosion Damage

Move Over, Superman! NIST 'Spectral Fingerprinting' Sees Through Concrete to Detect Early Corrosion

April 26, 2017

When you suffer a fall, an on-the-field collision or some other traumatic blow, the first thing the doctor will do is take an X-ray, CT scan or MRI to determine

Projects and Programs

Continuing Support of Cement Manufacturing

Cement manufacturers and their customers rely on the NIST Portland cement SRMs for laboratory qualification under ASTM International C 114-07 Standard Test

Engineered Materials for Resilient Infrastructure Program

Infrastructure is essential for commerce. Planners and stakeholders want to develop infrastructure that is resilient to both chronic (e.g., material degradation

Accelerated Weathering Laboratory: Metrology and Technology Transfer

The NIST Accelerated Weathering Laboratory provides researchers with well-quantified accelerated aging environments, using a unique SPHERE (Simulated

Direct Assessment of Concrete-Making Materials for Standards and Specifications

Today's cement and concrete specifications are based on the 1948 work,” Long-Time Study of Cement Performance in Concrete”. While the 1948 study established

Publications

How Do Specific Surface Area and Particle Size Distribution Change When Granular Media Dissolve?

February 14, 2021

Author(s)

Jeffrey W. Bullard, Qingxu Jin, Kenneth A. Snyder

The measured dissolution rate of a granular medium depends on its surface area and how the surface area changes during the course of the measurement. Moreover

Structural Performance of Nuclear Power Plant Concrete Structures Affected by Alkali-Silica Reaction (ASR) - Task 1: Assessing In-Situ Mechanical Properties of ASR-Affected Concrete

February 8, 2021

Author(s)

Fahim H. Sadek, Travis E. Thonstad, Sorin Marcu, Jonathan Weigand, timothy J. barrett, Hai S. Lew, Long Phan, Adam L. Pintar

This report describes the results of Task 1 of a five-task comprehensive research program being conducted at the National Institute of Standards and Technology

Structural Performance of Nuclear Power Plant Concrete Structures Affected by Alkali-Silica Reaction (ASR) - Task 2: Assessing Bond and Anchorage of Reinforcing Bars in ASR-Affected Concrete

February 3, 2021

Author(s)

Travis E. Thonstad, Jonathan Weigand, Fahim H. Sadek, Sorin Marcu, timothy J. barrett, Hai S. Lew, Long Phan, Adam L. Pintar

This report describes the results of Task 2 of a five-task comprehensive research program being conducted at the National Institute of Standards and Technology

Dissolution and Initial Hydration Behavior of Tricalcium Aluminate in Low Activity Sulfate Solutions

January 22, 2020

Author(s)

Alexander Brand, Steven B. Feldman, Paul E. Stutzman, Anton V. Ievlev, Matthias Lorenz, Darren C. Pagan, Sriramya Nair, Justin Gorham, Jeffrey W. Bullard

The effects on cubic tricalcium aluminate (C3A) hydration of alkali or alkaline earth sulfate electrolytes were evaluated by in situ dissolution rate

Software

Prediction of a Chloride Ion Penetration Profile for a Concrete

January 13, 2017

Prediction is based on a one-dimensional finite difference solution of Fick's second law of diffusion, with a variable external chloride concentration and a two

MicroChar

April 1, 2015

(Return to Cement Hydration and Degradation Modeling Software) Accurate quantitative data on cement and clinker microstructure images can prove valuable for

VCCTL Software

(Return to Cement Hydration and Degradation Modeling Software) The Virtual Cement and Concrete Testing Laboratory (VCCTL) software provides a virtual testing

Virtual Rapid Chloride Permeability Test

(Return to Cement Hydration and Degradation Modeling Software) The purpose of this form is to estimate the results of a rapid chloride permeability test

Concrete / cement

News and Updates

How Fire Causes Office-Building Floors to Collapse

Sticking Together

Move Over, Superman! NIST 'Spectral Fingerprinting' Sees Through Concrete to Detect Early Corrosion

Projects and Programs

Continuing Support of Cement Manufacturing

Engineered Materials for Resilient Infrastructure Program

Accelerated Weathering Laboratory: Metrology and Technology Transfer

Direct Assessment of Concrete-Making Materials for Standards and Specifications

Publications

How Do Specific Surface Area and Particle Size Distribution Change When Granular Media Dissolve?

Structural Performance of Nuclear Power Plant Concrete Structures Affected by Alkali-Silica Reaction (ASR) - Task 1: Assessing In-Situ Mechanical Properties of ASR-Affected Concrete

Structural Performance of Nuclear Power Plant Concrete Structures Affected by Alkali-Silica Reaction (ASR) - Task 2: Assessing Bond and Anchorage of Reinforcing Bars in ASR-Affected Concrete

Dissolution and Initial Hydration Behavior of Tricalcium Aluminate in Low Activity Sulfate Solutions

Software

Prediction of a Chloride Ion Penetration Profile for a Concrete

MicroChar

VCCTL Software

Virtual Rapid Chloride Permeability Test

Awards

Long Phan Receives American Concrete Institute (ACI) Concrete Research Council Arthur J. Boase Award

Dale Bentz Elected American Concrete Institute (ACI) Fellowship

Paul Stutzman Receives the Bryant Mather Award from ASTM Committee C01