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The agencies are funding 20 projects to be conducted across 24 institutions through the Disaster Resilience Research Grant (DRRG) program, which they manage
Engineers and technicians at the National Institute of Standards and Technology (NIST) spent months meticulously recreating the long concrete floors supported
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
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
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
Cement manufacturers and their customers rely on the NIST Portland cement SRMs for laboratory qualification under ASTM International C 114-07 Standard Test
Infrastructure is essential for commerce. Planners and stakeholders want to develop infrastructure that is resilient to both chronic (e.g., material degradation
Retrofit and repair of structures occur under differing circumstances but are both necessary to improve existing building stock and increase resilience of
Portlandite (calcium hydroxide: CH: Ca(OH)2) suspensions aggregate spontaneously and form percolated fractal aggregate networks when dispersed in water. As a
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
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
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) Version 1.0 of CEMHYD3D included three computer programs (statsimp.c, corrcalc.c, and corrxy2r.c)
(Return to Cement Hydration and Degradation Modeling Software) The purpose of this form is to compute the results of a bulk electrical conductivity of concrete