Results 21 to 30 of about 62,299 (282)

Activation of Blast Furnace Slag with CFB Fly Ash as a Supplementary Binder Material: Hydration Products and Effects of Sulfate Attack

Crystals, 2021
Circulating Fluidized Bed (CFB) combustion is a clean technology for burning, with advantages of adapting to a large variety of fuel, high combustion efficiency, lower NOx emissions, and stable operation. The residue collected from the ash-hoppers of the
Guan-Yu Chen, Wei-Hsing Huang
doaj   +1 more source

Long-term properties and microstructure change of engineered cementitious composites subjected to high sulfate coal mine water in drying-wetting cycles

Materials & Design, 2021
The mine water environment in underground reservoirs poses great threat to the durability of artificial concrete dams, mainly due to the coupled sulfate and drying-wetting cycles.
Zhenbo Wang, Peng Sun, Jianping Zuo, Chang Liu, Yudong Han, Zishan Zhang   +5 more
doaj   +1 more source

Evaluation of Relationship between Water Absorption and Durability of Concrete Materials

Advances in Materials Science and Engineering, 2014
Environment has significant effects on the water absorption of concrete materials. This paper presents an experimental study of the influence of water absorption on the durability of concrete materials.
S. P. Zhang, L. Zong
doaj   +1 more source

Examination of sulfate resistance of nano-alumina added ordinary Portland cement paste, focusing on the two different crystallinity of nano-aluminas

International Journal of Concrete Structures and Materials, 2023
This study examined the influence of the crystallinity of added nano-alumina on the sulfate resistance of ordinary Portland cement (OPC) paste. Two crystalline types of nano-aluminas (α-and γ-phase) were incorporated in cement pastes, which were exposed ...
Juan Yu, Sungwon Sim, Haemin Song, Dohoon Kim, Kyungcheol Jang, Dongho Jeon, Seung Cho, Jae Eun Oh   +7 more
doaj   +1 more source

Statistical Model for Predicting the Optimum Gypsum Content in Concrete

Journal of Engineering, 2023
The problem of internal sulfate attack in concrete is widespread in Iraq and neighboring countries.This is because of the high sulfate content usually present in sand and gravel used in it.
Zena Kudair Abbas, Riyadh S. Al-Rawi , Ali H. Al-Neaime   +2 more
doaj   +1 more source

Anticholinergic therapy for acute asthma in children. [PDF]

, 2012
Inhaled anticholinergics as single agent bronchodilators (or in combination with beta(2)-agonists) are one of the several medications available for the treatment of acute asthma in ...
Beakes, Beck, Benito Fernandez, Bever, Bratteby, British Thoracic Society, Brown, Browne, Calvo, Cook, Craven, Cugell, DeStefano, Ducharme, Everard, Goggin, Gross, Guill, Hayday, Iramain, Lew, Lin, Lung, Mallol, McDonald, Mirsadraee, National Asthma Council Australia, Ni, Plotnick, Pulejo, Quereshi, Qureshi, Rayner, Reisman, Rodrigo, Schuh, Sienra Monge, Storms, Storr, Tal, Timsit, Ulrik, Undem, Wade, Ward, Ward, Yeung, Youngchaiyud, Zimmerman, Zorc   +49 more
core   +2 more sources

Cracking of residential concrete foundations in eastern Connecticut, USA from oxidation of pyrrhotite

Case Studies in Construction Materials, 2022
Extensive cracking in thousands of residential foundations in eastern Connecticut is found to be due to expansions from oxidation of pyrrhotite in crushed gneiss coarse aggregate in concrete.
Dipayan Jana
doaj   +1 more source

Cloud condensation nuclei activity, closure, and droplet growth kinetics of Houston aerosol during the Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) [PDF]

, 2009
In situ cloud condensation nuclei (CCN) measurements were obtained in the boundary layer over Houston, Texas, during the 2006 Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) campaign onboard the CIRPAS Twin Otter.
Dubey, Manvendra K., Feingold, Graham, Flagan, Richard C., Gates, Harmony, Jonsson, Haflidi H., Lance, Sara, Mazzoleni, Claudio, Murphy, Shane M., Nenes, Athanasios, Rissman, Tracey A., Seinfeld, John H., Sorooshian, Armin, Varutbangkul, Varuntida   +12 more
core   +2 more sources

One-electron oxidation and reduction of glycosaminoglycan chloramides: a kinetic study. [PDF]

, 2013
Hypochlorous acid and its acid-base counterpart, hypochlorite ions, produced under inflammatory conditions, may produce chloramides of glycosaminoglycans, these being significant components of the extracellular matrix (ECM).
A.W.J. Paterson, Akeel, Al-Assaf, Al-Assaf, B.J. Parsons, Balazs, C. Houee-Levin, Camenisch, Chawla, D.J. Heyes, Dogliotti, Eriksen, Hardingham, Hawkins, Hayon, Hayon, Heckel, Heinecke, Huie, Ivanov, J.-L. Marignier, Jiang, Johnson, Kennett, Kennett, Kettle, Laurent, Laurent, McElroy, McElroy, McGowan, Milner, Misra, Parsons, Parsons, Pattison, Pattison, Pattison, Pe Myint, Poskrebyshev, Redpath, Rees, Rees, Rees, Rees, Rees, Rees, S. Sibanda, Schwarz, Stern, Swallow, Tang, Thomas, Thomas, Thorne, Toole, Toole, Toole, Turley, van Golen, von Sonntag, Weeks, Weiss, Weiss, Wine, Wolfenden, Woods, Zao   +67 more
core   +1 more source

Experimental study on sulfate resistance of concrete with recycled aggregate modified with polyvinyl alcohol (PVA)

Case Studies in Construction Materials, 2021
Using the wastes as a recycled concrete aggregate (RCA) is a promising technology to reduce the impact of construction and demolition wastes on the environment and the shortage of natural resources.
Haider M. Al-Baghdadi
doaj   +1 more source