An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Some people like plastic Christmas trees; others prefer real wood and needles. This year, NIST is printing a tree out of concrete. The tree is not only festive
The National Construction Safety Team has reached an important milestone in its investigation into the 2021 partial collapse of Champlain Towers South.
Objective To improve residential and industrial building energy efficiency by decreasing measurement uncertainties of the thermal resistance of insulating materials and develop measurement techniques for innovative insulation materials and systems using PCMs. Technical Idea One of the most cost
Objective To enable low-flammability products which do not contain flame retardants by 1) providing a methodology and guidance to assess the performance of functional barriers at bench-scale, 2) enabling the development of functional barriers with improved performance, and 3) exploring the use of
Objective - Create new measurement technology and reference data that characterize the structure, composition, and reactivity of cementitious materials.
What is the new technical idea? The new technical idea is to create the measurement science, data and understanding required for the concrete
Objective - To develop the measurement science needed to enable greater industry use of innovative concretes, such as 3D printing, more durable and limestone replacement concretes.
What is the new technical idea? Manufacturing of cement and production/placement of concrete requires significant
Donald Scott, Jennifer Goupil, Shane Crawford, Alex Griffin, Cherylyn Henry, Marc Levitan, Franklin Lombardo, John van de Lindt, Peter Vickery
The Structural Engineering Institute (SEI) has a long history of working with NIST and other federal partners to improve ASCE/SEI 7 Minimum Design Loads and
Ronald Lankone, Mauro Zammarano, Song Jhang, Ickchan Kim, David Goodwin, Gianluca Sarti, Stefano Gardi, Camillo Cardelli, Lipiin Sung
Vinyl siding has become a popular choice for residential exteriors across the United States. In its insulated form, this siding includes a shell, capstock, and
Noah Last, Joshua D. Kneifel, Amy Costello, Catherine Houska, Katherine Morris
ASTM International's committee on sustainability (E60), in collaboration with the National Institute of Standards and Technology (NIST), hosted the virtual
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
(Return to Cement Hydration and Degradation Modeling Software)
Accurate quantitative data on cement and clinker microstructure images can prove valuable for
(Return to Cement Hydration and Degradation Modeling Software) The effective properties of composites have been studied analytically for a long time, back to
In the artificial ultraviolet (UV) weathering of materials, a need exists for weathering devices that can uniformly illuminate test specimens with a high level
The 1-meter guarded hot-plate apparatus measures thermal conductivity of building insulation. This facility provides for absolute measurement of thermal
In the artificial ultraviolet (UV) weathering of materials, a need exists for weathering devices that can uniformly illuminate test specimens with a high level
The Large Aperture Scanner (LAS) scans a radar transceiver over a 5 meter by 20 meter aperture. Image reconstruction techniques enable a three-dimensional