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Christopher C. White, Donald L. Hunston, Adam L. Pintar
Determination of the in-service performance and failure of a building envelope material exposed to outdoor weathering has been a significant research goal for the last 100 years. Typically, estimations of the time to failure or durability of a material is
There has been a long partnership in the materials science of building materials between the National Institute of Standards and Technology (NIST) in the United States and RILEM. This paper discusses on the technical contributions NIST has made to RILEM
Li Piin Sung, Linqian Feng, Nadia Benhamida, Pierre Morel, Andrew T. Detwiler, Jon M. Skelly, Leslie T. Baker, Deepanjan Bhattacharya
As original equipment manufacturers (OEMs) strive to deliver improved coating performance with a sustainable footprint, opportunities for innovation are emerging, particularly on improving mechanical properties, appearance, and solids content. Resistance
Validation of quantitative X-ray powder diffraction measurements traditionally involved compounding test mixtures of known phase compositions. Validation is particularly important with the Rietveld method as the normalization will obscure bias. ASTM C1365
Christopher C. White, Donald L. Hunston, Adam L. Pintar, James J. Filliben
Determination of Design Life in less than real time as eluded researchers for decades. Recently, ASTM has issued a new standard, ASTM C1850, that outlines a procedure to develop accelerated testing methods to determine the design life of a sealant. This
The recent introduction of ASTM C1735 allows a durability assessment of a sealant joint assembly without incurring destruction. Conventional testing of sealant assemblies to ASTM C1135 or ISO 8339 for assessing durability is to fabricate sealant joint
The standard reference materials (SRM) for fineness of cement are SRM 114 and SRM 46h. They are an integral part of the calibration materials routinely used in the cement industry to qualify cements for ASTM C204 (Blaine), C115 (Wagner) and C430 (45 m
Edward Garboczi, Guang Ye, Zhiwei Qian, Yibing Zuo
Many particle-based numerical models have been used to simulate the hydration process of cementitious materials. But most of these models employ regular shape particles, like the commonly used spheres, to represent cement, slag or fly ash, which neglects
This report is a supplement to the paper published as Transient Thermal Response of an Extended Temperature Range 500-mm diameter Guarded Hot-plate Apparatus by Thomas and Zarr (2018) [1], hereafter referred to as the paper. The paper emphasizes the
Chiara F. Ferraris, Paul E. Stutzman, Max A. Peltz
The sulfate resistance of cements used in the construction industry is traditionally assessed by measuring the expansion of a prism of 280 mm (11inch) length and 25 mm (1 inch) square cross section immersed in a sodium sulfate solution for at least one
The Standard Reference Material (SRM) clinkers are intended for use in developing and testing quantitative methods of phase analysis for portland cement and cement clinker. The three NIST clinkers exhibit the range of textures and compositions of North
Edward J. Garboczi, Ann C. Chiaramonti Debay, Thomas V. Lafarge, O Munoz, J Escobar-Cerezo, D Guirado, JC Gomez-Martin, Jay Goguen, F Moreno
We present the experimental scattering matrix as a function of the scattering angle of the lunar soil simulant JSC-1A. The measurements were performed at 488 nm, 520 nm and 647 nm, covering the range of scattering angles from 3o to 177o. The size