Concrete / cement

News and Updates

Building that has been destroyed by a tornado

NIST, NSF Award More Than $7.6 Million to Support Disaster Resilience Research

May 4, 2022

The agencies are funding 20 projects to be conducted across 24 institutions through the Disaster Resilience Research Grant (DRRG) program, which they manage

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

Projects and Programs

Accelerated Weathering Laboratory: Metrology and Technology Transfer

Ongoing

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

Carbon Capture and Carbon Sequestration

Ongoing

Direct Assessment of Concrete-Making Materials for Standards and Specifications

Ongoing

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

Low Carbon Cements and Concretes Consortium

Ongoing

The National Institute of Standards and Technology (NIST), an agency of the United States Department of Commerce, in support of efforts to develop standards for

Publications

Retrofit and Repair of Reinforced Concrete Walls With FRP: A Review of Experimental Investigations

July 13, 2023

Author(s)

Jazalyn Dukes, Siamak Sattar

Retrofit and repair of structures occur under differing circumstances but are both necessary to improve existing building stock and increase resilience of

Electrosteric control of the aggregation and yielding behavior of concentrated portlandite suspensions

June 13, 2023

Author(s)

Sharu Kandy, Mathieu Bauchy, Gaurav Sant, Aditya Kumar, Narayanan Neithalath, Samanvaya Srivastava, Torben Gaedt, Edward Garboczi

Portlandite (calcium hydroxide: CH: Ca(OH)2) suspensions aggregate spontaneously and form percolated fractal aggregate networks when dispersed in water. As a

A quantitative characterization of spatial arrangement of air voids in mortars via X-ray CT and numerical calculations

November 4, 2022

Author(s)

Edward Garboczi, Kai Lyu, Yufeng Gao, Changwen Miao, Xiaoyan Liu

Compared with overall air void content and size distribution, the spatial arrangement of air voids is probably of more importance in the durability of cement

Engineering properties and pore structure of lightweight aggregates produced from off-spec fly ash

September 19, 2022

Author(s)

Edward Garboczi, Mohammad Balapour, Thiha Thway, Grace Hsuan, Yaghoob Farnam, Newell Moser

This study characterizes the engineering properties of lightweight aggregate (LWA) manufactured from low calcium (F-FA) and high calcium (C-FA) waste fly ash

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

Stokes Three-Dimensional Permeability Solver

(Return to Cement Hydration and Degradation Modeling Software) A set of C and Fortran computer programs have been developed for computing the permeability of

Estimation of Pore Solution Conductivity

(Return to Cement Hydration and Degradation Modeling Software) The purpose of this form is to provide an estimate of the electrical conductivity (S/m) of the

Concrete / cement

News and Updates

NIST, NSF Award More Than $7.6 Million to Support Disaster Resilience Research

How Fire Causes Office-Building Floors to Collapse

Sticking Together

Projects and Programs

Accelerated Weathering Laboratory: Metrology and Technology Transfer

Carbon Capture and Carbon Sequestration

Direct Assessment of Concrete-Making Materials for Standards and Specifications

Low Carbon Cements and Concretes Consortium

Publications

Retrofit and Repair of Reinforced Concrete Walls With FRP: A Review of Experimental Investigations

Electrosteric control of the aggregation and yielding behavior of concentrated portlandite suspensions

A quantitative characterization of spatial arrangement of air voids in mortars via X-ray CT and numerical calculations

Engineering properties and pore structure of lightweight aggregates produced from off-spec fly ash

Software

Prediction of a Chloride Ion Penetration Profile for a Concrete

MicroChar

Stokes Three-Dimensional Permeability Solver

Estimation of Pore Solution Conductivity

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