Modern Building Materials, Structures and Techniques (MBMST): Recent submissions
Now showing items 181-200 of 450
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Mechanical behavior of polymeric synthetic fiber in the concrete
(Procedia Engineering, 2017)Results of damage and failure investigation in a concrete reinforced by short polymeric fibers are reported in the present work. Two types of fibers were used in experiments 30mm and 6mm long. Pull-out experiments were ... -
Fire resistance of unprotected steel beams – comparison between fire tests and calculation models
(Procedia Engineering, 2017)The paper presents results of fire resistance test of unprotected steel beams, compared with simple and advanced calculation models given in EN 1993-1-2. The comparison shows differences between temperatures recorded ... -
The sustainability of the construction industry in Sub-saharan Africa: some new evidence from recent data
(Procedia Engineering, 2017)The relationship between a country’s level of construction activity and its stage of economic development has been the subject of study at the macroeconomic level for a number of years. The dominant paradigm in the field ... -
Research into influence of ultra- and nanodisperse size additives on the structure and properties of heat insulating autoclaved aerated concrete
(Procedia Engineering, 2017)The paper presents the results of the research into the influence of various ultra- and nanodisperse size additives on the structure and mechanical-and-physical properties of heat insulating autoclaved aerated concrete ... -
Free vibrations of uniform and hollow-sectional elastic arches
(Procedia Engineering, 2017)Free vibrations of elastic arches with rectangular cross sections are studied. The arches under consideration have piece wise constant dimensions of the cross section. Moreover, the arches are weakened with cracks of given ... -
Experimental and numerical analysis of an aluminum cantilevered beam with polymer adhesive
(Procedia Engineering, 2017)In this paper, experimental and numerical investigation on a composite cantilevered aluminum beam has been conducted. The subject of the study consists of two plain aluminum elements bonded with polymer adhesive of different ... -
Structural performance of wood based sandwich panels in four point bending
(Procedia Engineering, 2017)Current paper describes design, prototyping and experimental tests of wood based sandwich panels with plywood surfaces. In the first case 3D core of the sandwich panel is formed by thermoplastic glass fibre / polypropylene ... -
Mesoscopic analysis of crack propagation in concrete by nonlinear finite element method with crack queuing algorithm
(Procedia Engineering, 2017)By means of nonlinear finite element method, the initiation and propagation of cracks in concrete are analysed numerically at the mesoscopic level. The concrete is treated and modelled as a three-phase system consisting ... -
Change of moisture distribution in ribbed plate with different opposite surface temperatures
(Procedia Engineering, 2017)Nowadays to predict hygrothermal performance the methodology of ISO 13788:2012 is widely used. In calculations according to this methodology no material properties are taken into account that leads to overestimate of the ... -
Analysis of oxygen index to support candle-like combustion of polyurethane
(Procedia Engineering, 2017)The main component of plastics are polymers, which despite numerous advantages also entail certain drawbacks. The least desired features of polymers comprise the low thermal stability and flammability, which in turn depend ... -
Ecological high performance concrete
(Procedia Engineering, 2017)In this paper the authors present the possibility to utilize two waste materials to produce high performance concrete (HPC). To prepare the mixes, Recycled Concrete Aggregate (RCA) of 4-16 mm fraction and Class F fly ash ... -
Investigations on physical-mechanical properties of effective thermal insulation materials from fibrous hemp
(Procedia Engineering, 2017)Depletion of fossil fuels resources and large amounts of pollutants emitted to the atmosphere enforce searching for alternative renewable resources. One of these resources is fibred hemps. The main components obtainable ... -
Identification of the parameters of a concrete damage material model
(Procedia Engineering, 2017)Today, the advanced numerical analysis of concrete structures requires the use of nonlinear material models of concrete in order to take into account the nonlinear behavior of concrete within finite element simulations. ... -
Elastic stability of uniform and hollow columns
(Procedia Engineering, 2017)The stability of elastic beams and columns is investigated. The beams are subjected to the axial pressure at the elastically supported end whereas the other end of the beam is clamped. The attention is confined to the ... -
Comparative evaluation and modification of laboratory compaction methods of road base mixtures manufactured in low-emission CIR technology with foamed bitumen and bitumen emulsion
(Procedia Engineering, 2017)The paper evaluates the influence of laboratory compaction methods on the properties of recycled mixtures with foamed bitumen (Foam-Mix) and bitumen emulsion (Emulsion-Mix). In Poland, the requirements concerning the ... -
Analysis of IT-CY stiffness modulus of foamed bitumen asphalt concrete compacted at 95°C
(Procedia Engineering, 2017)This study is to compare the results of temperature sensitivity tests of foamed bitumen asphalt concrete (AC 8) compacted at 95ºC with that of the reference mixture compacted at the conventional temperature of 140ºC. The ... -
Big data in building energy efficiency: understanding of big data and main challenges
(Procedia Engineering, 2017)Data generation has increased drastically over the past few years. Data management has also grown in importance because extracting the significant value out of a huge pile of raw data is of prime important thing to make ... -
Influence of raw concrete material quality on selected properties of recycled concrete aggregates
(Procedia Engineering, 2017)Recycling of construction waste is an enterprise that is extremely important as well as difficult to accomplish in terms of environmental protection. One of the possible ways of the application of the construction waste, ... -
Flame transfer through the external walls insulation of the building during a fire
(Procedia Engineering, 2017)The article contains a description of the problems of the risk associated with flammable insulation of the building external walls. According to fire statistics, 80% of lives are taken because of the smoke presence. The ... -
ETA tests and design of HPKM column shoe connections
(Procedia Engineering, 2017)In Europe interest and relevance of CE marking of construction products stood up at the beginning of the 21st century. ETA approval was the only solution for innovative products such as Column Shoes to get user right of ...