Superabsorbent polymers to seal and heal cracks in cementitious materials
نویسندگان
چکیده
منابع مشابه
Superabsorbent Polymers and Superabsorbent Polymer Composites
This article briefly describes the general aspects and cross-linking polymerization of superabsorbent polymers (SAPs) and superabsorbent polymer composites (SAPCs). Research and development of SAPs has become very active after the Northern Region Laboratory of the United States Department of Agriculture invented the first SAP, used as a soil conditioner. Based on the advancements in organic/ino...
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Cracking is a major concern in building applications. Cracks may arise from shrinkage, freeze/thawing and/or structural stresses, amongst others. Several solutions can be found but superabsorbent polymers (SAPs) seem to be interesting to counteract these problems. At an early age, the absorbed water by the SAPs may be used to mitigate autogenous and plastic shrinkage. The formed macro pores may...
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Peroxyl radicals have a key role in the degradation of volatile organics in the atmosphere, as well as the oxidation of cellular lipids and other integral biomolecules. The excited electronic (B) state of alkylperoxyl radicals is dissociative and lies reliably in the ultraviolet region. Arylperoxyl radicals, on the other hand, are predicted to have a dissociative state accessible within the vis...
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15 صفحه اولPotential of Applying Bacteria to Heal Cracks in Concrete
Concrete is a construction material that is used world-wide because of its first-rate properties. However, the drawback of this material is that it easily cracks due to its low tensile strength. As large costs are involved in crack repair, the potential of self-healing of these cracks by means of calcium carbonate (CaCO3) precipitating bacteria was investigated in this study. First, the surviva...
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ژورنال
عنوان ژورنال: RILEM Technical Letters
سال: 2018
ISSN: 2518-0231
DOI: 10.21809/rilemtechlett.2018.64