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...
متن کاملCrack Mitigation in Concrete: Superabsorbent Polymers as Key to Success?
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...
متن کاملThe Effects of Superabsorbent Polymers on Soils and Plants
Current climate change is projected to have significant effects on temperature and precipitation profiles, increasing the incidence and severity of drought. Drought is the single largest abiotic stress factor leading to reduced crop yields. Given the large share of water use in the agriculture sector and very low efficiency in this sector, selection and development of the new strategies to impr...
متن کاملSmart superabsorbent polymers for self-sealing and -healing of mortar
ID No: 54 Abstract: Concrete is an important building material, due to its ease to use and relatively low cost. However, the presence of cracks endangers the durability of concrete and can result in reinforcement corrosion since a pathway for harmful particles dissolved in fluids and gases is generated. Manual repair costs can go up to half of the annual construction budget. Instead, introducin...
متن کاملPhysical Properties of Concrete Modified with Superabsorbent Polymers
This dissertation deals with the effect of a new concrete additive, called salt-insensitive superabsorbent polymer, on the physical properties of normal and high strength concrete. Superabsorbent polymers, short SAP, are special polymers that are able to absorb many times more water than their own weight within short time. They can even store water when exposed to gentle mechanical stress. When...
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ژورنال
عنوان ژورنال: Ambiente e Agua - An Interdisciplinary Journal of Applied Science
سال: 2020
ISSN: 1980-993X
DOI: 10.4136/ambi-agua.2533