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Non-destructive Testing of Materials in Civil Engineering

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ISBN: 9783039216901 9783039216918 Year: Pages: 448 DOI: 10.3390/books978-3-03921-691-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:16
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Abstract

This book was proposed and organized as a means to present recent developments in the field of nondestructive testing of materials in civil engineering. For this reason, the articles highlighted in this editorial relate to different aspects of nondestructive testing of different materials in civil engineering—from building materials to building structures. The current trend in the development of nondestructive testing of materials in civil engineering is mainly concerned with the detection of flaws and defects in concrete elements and structures, and acoustic methods predominate in this field. As in medicine, the trend is towards designing test equipment that allows one to obtain a picture of the inside of the tested element and materials. From this point of view, interesting results with significance for building practices have been obtained

Keywords

non-destructive testing --- masonry structures --- strengthening --- ultrasonic tomography --- adhesion assessment --- autoclaved aerated concrete (AAC) --- compressive strength --- shape and size of specimen --- moisture of AAC --- ultrasonic testing --- gantry crane --- RMF technique --- civil engineering --- fibre-cement boards --- non-destructive testing --- acoustic emission --- degree of degradation --- thermovision --- active thermography --- thermal contrast --- defect detection --- location of inclusions --- non-destructive testing --- materials research --- building partition --- cement-based composites --- fiber cement boards --- durability --- ultrasound measurements --- spun concrete --- micro-computed tomography --- nanoindentation --- deconvolution --- mathematical morphology --- non-destructive evaluation --- structural damage --- natural frequency --- singular value truncation --- multiple feedbacks --- data noise --- NDT methods --- rebar location --- eddy-current method --- GPR method --- concrete --- concrete mix design --- concrete strength prediction --- data mining --- machine learning --- timber structures --- non-destructive methods --- ultrasonic wave --- stress wave --- drilling resistance --- X-ray micro-computed tomography --- waste brick dust --- adsorption --- lead --- cesium --- surface complexation --- precipitation --- solid-state NMR spectroscopy --- Lamb waves --- scanning laser vibrometry --- adhesive joints --- non-destructive testing --- damage detection --- excitation frequency --- nondestructive testing --- thermography --- monitoring of structures --- reinforced concrete chimney --- corrosion processes --- service life of a structure --- viscoelastic parameters --- creep test --- fatigue tests --- asphalt mixtures --- Burgers model --- four point bending beam --- pattern recognition --- acoustic emission --- Structural Health Monitoring --- brittle fracture --- diagnostics --- non-destructive testing --- reinforced concrete grandstand stadium --- vibration analysis --- crowd-induced excitation --- structural tuning --- concrete slabs and floorings --- horizontal casting --- compressive strength --- ultrasonic tests --- fibre-cement boards --- non-destructive testing --- acoustic emission --- artificial neural networks --- SEM --- non-destructive method --- damage --- mercury intrusion porosimetry --- X-ray computed tomography --- acoustic emission AE --- acoustic spectrum --- quasi brittle cement composites --- destruction process --- resistance measurement --- wood moisture sensing --- non-destructive testing --- moisture safety --- cellulose fibre cement boards --- microstructure --- nanoindentation --- SEM-EDS analysis --- temperature --- concrete elements --- concrete strength --- reinforced concrete tanks --- concrete corrosion --- sulphate corrosion --- ultrasound tests --- rebound hammer --- SilverSchmidt --- concrete --- compressive strength --- non-destructive testing --- non-destructive testing --- diagnostic --- acoustic methods --- ultrasound --- building materials --- defects

Wood Properties and Processing

Author:
ISBN: 9783039288212 / 9783039288229 Year: Pages: 350 DOI: 10.3390/books978-3-03928-822-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2020-06-09 16:38:57
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Wood-based materials are CO2-neutral, renewable, and considered to be environmentally friendly. The huge variety of wood species and wood-based composites allows a wide scope of creative and esthetic alternatives to materials with higher environmental impacts during production, use and disposal. Quality of wood is influenced by the genetic and environmental factors. One of the emerging uses of wood are building and construction applications. Modern building and construction practices would not be possible without use of wood or wood-based composites. The use of composites enables using wood of lower quality for the production of materials with engineered properties for specific target applications. Even more, the utilization of such reinforcing particles as carbon nanotubes and nanocellulose enables development of a new generation of composites with even better properties. The positive aspect of decomposability of waste wood can turn into the opposite when wood or wood-based materials are exposed to weathering, moisture oscillations, different discolorations, and degrading organisms. Protective measures are therefore unavoidable for many outdoor applications. Resistance of wood against different aging factors is always a combined effect of toxic or inhibiting ingredients on the one hand, and of structural, anatomical, or chemical ways of excluding moisture on the other.

Keywords

artificial weathering --- blue staining fungi --- colour change --- natural weathering --- wood --- marketing --- material preference --- urban housing --- immigrants --- building culture background --- building material --- chemical changes --- colour changes --- infrared spectroscopy --- hardwoods --- roughness --- Douglas-fir --- lumber --- non-destructive testing --- modulus of elasticity (MOE) --- stiffness --- thinning --- silviculture --- wood based composites --- hybrid beams --- bending stiffness --- flexural rigidity --- aluminium reinforcements --- wooden windows --- end-product-based fiber attribute determinates --- longitudinal stress wave velocity --- mixed-effects hierarchical linear models --- predictive performance --- bamboo grid packing --- cooling packing --- cooling tower --- mechanical properties --- fungi --- bamboo --- heat treatment --- wood --- structural changes --- nondestructive testing --- ultrasound --- Euler-Bernoulli --- modulus of elasticity --- neural network --- high frequency drying --- moisture content --- wood --- brittleness --- density --- dynamic strength --- High-Energy Multiple Impact (HEMI)–test --- Resistance to Impact Milling (RIM) --- bamboo grid packing --- cooling packing --- cooling tower --- chemical composition --- elemental composition --- FTIR --- color --- tropical woods --- brown rot --- Coniophora puteana --- colour --- CIEL*a*b* system --- technological and product innovations --- cyclic loading --- laminated wood --- deflection at the limit of proportionality --- deflection at the modulus of rupture --- wood-processing industry performance --- orthotropic --- elastic constants --- green larch --- compression --- three-point bending --- coefficient of wood bendability --- laminated wood --- technological and product innovations --- minimal curve radius --- orthotropic --- tensile modulus --- tensile strength --- moisture content --- relative humidity --- glued lamella --- flexible chair --- weight of a user --- ultimate state --- volume yield --- European hardwoods --- low quality round wood --- strength grading --- glulam --- ultrasonic wave velocity measurement --- nondestructive assessment --- wood mechanical properties --- intra-ring variation --- dynamic modulus of elasticity --- Pinus massoniana Lamb. --- phenol formaldehyde resin --- wood impregnation --- wood properties --- cell-wall mechanics --- ultrasonic speed --- poplar seedlings --- acoustic resonance --- density --- microfibril angle --- root-collar diameter --- machinability --- Eucalyptus --- plantation timber --- fiber-managed hardwoods

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