water absorption

water absorption

Of a test specimen, the increase in weight after immersion in water for a specified time, expressed as a percentage of its dry weight; usually the test conditions are specified.
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7] indicated that the mechanical properties of specimens containing recycled plastics were statistically comparable with those of composites made from virgin plastics; however, the maximum water absorption increased with the increase of recycled plastic loading.
Moisture resistance was investigated by measuring water absorption according to ISO 2380 using a PB specimen of 300 x 300 [mm.
But whereas pre-War players had to cope with water absorption and heavy stitching which made heading, in particular, a painful experience, the current FA Cup ball is described by manufacturers Nike as having "Aerowtrac grooves and a micro-textured casing for accuracy, control and a true flight.
Glass fiber has a unique combination of characteristics: high compressive strength and tensile, heat resistant, non-flammability, low water absorption, resistance to chemical and biological attack, the
Cyclic olefin polymers/copolymers (COP/COC) are said to have become popular choices in the point-of-care device industry because of their many advantages, including high strength, hardness, low water absorption and excellent biocompatibility.
Mitadera, Kurokawa, and Takano developed a polyamide resin having high elastic modulus, good gas-barrier properties, low water absorption, and excellent flexibility.
The effects of formation conditions and rice straw powder content on the mechanical properties, water absorption, and moisture absorption performance of the composites were studied.
Areas addressed include types of plant roots, root nutrient uptake and water absorption, rhizosphere chemistry, effects of mineral nutrition on root growth, management strategies for maximizing root systems, and optimizing cultural practices.
Based on the results, by changing 5% of the amount of cement by shiver ashes, which density of the particles is 10% less in respect to cement particles, the mechanical and physical properties (density, water absorption, tensile strength by splitting, etc.
Furthermore, influence of silica nano-particles on durability and microstructure of concrete for 28-days specimens were tested by conducting water absorption test, Scanning Electron Microscopy (SEM), and Energy Dispersive X-ray Analysis (EDAX), respectively.
Table 2 and 3 present the measured values of water absorption and elongation of preliminary studies.
Another aspect of durability is an increased intensity of rebar corrosion due to increased permeability and capillary water absorption of concrete caused by the second main constituent.