Tarptautinės konferencijos / International Conferences: Recent submissions
Dabar rodomi įrašai 81-100 iš 2221
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Development of a quality criteria system for facilities management services in Lithuania
(Procedia Engineering, 2013)Service quality management and evaluation is a very complex and problematic process. In order to improve the quality of services, it is necessary to understand the characteristics and features of services which are ... -
Impact assessment of lime additive and chemical admixtures on selected properties of mortars
(Procedia Engineering, 2013)Durability of the structure is still a problem, particularly in masonry. Contemporary European standards of masonry mortar are vague and leave insufficiency for the specification of requirements that should be fulfilled ... -
Uni-axial compression test of concrete-filled-steel-tube columns confined by tie bars
(Procedia Engineering, 2013)Concrete-filled-steel-tube (CFST) columns have been adopted due to its superior strength and ductility performance contributed by the composite action. However, this beneficial composite action cannot be fully developed ... -
Studies of RC beams made of recycling aggregate concrete strengthened with the HSC-HPC inclusions
(Procedia Engineering, 2013)This paper presents the studies of innovative RC flexural members made of recycled aggregate concrete strengthened by the local use of High Strength - High Performance Concrete. This concept of is based on precast concrete ... -
The framework of an optimization model for building envelope
(Procedia Engineering, 2013)Building design is an iterative process from the conceptual design up to the final process, so the use of computer-based tools here is vital. The purpose of this research was to investigate the most popular tools for ... -
Assessment of priority options for preservation of historic city centre buildings using MCDM (ARAS)
(Procedia Engineering, 2013)Numerous countries are trying to find the best method for suitable management of real estate objects that encompass both material value and cultural property. Cultural property can be defined as historical heritage in the ... -
Selection of efficient retrofit scenarios for public buildings
(Procedia Engineering, 2013)Over the past two decades, the importance of the management of existing buildings is continuously increasing with time. Refurbishment of buildings requires execution of various measures that have to be carefully chosen, ... -
Conventional stochastic sequences in reliability assessments and predictions of structural members
(Procedia Engineering, 2013)A simplification of probability based approaches on safety assessments and predictions of structural members is discussed. The modelling of time-dependent survival probabilities and reliability indexes of particular and ... -
Measuring and time variability of the sorptivity of concrete
(Procedia Engineering, 2013)The article presents measurements of sorptivity. They were performed not only, as usual, after 28 days, but also after longer periods of time (2, 3, 6, 9, 12, 24 months) on samples made of the same concrete. Four different ... -
The investigation of alkali – silica reactivity (ASR) of Lithuanian aggregates
(Procedia Engineering, 2017)The potential alkali-silica reactivity (ASR) of Lithuanian aggregates from five quarries was investigated using national chemical method, accelerated mortar bar test method RILEM AAR-2 (specimens 40×40×160 mm) and storage ... -
Impact of chemical and physical modification on thermoplastic characteristics of bitumen
(Procedia Engineering, 2017)In spite of strong competition of synthetic materials (including PVC, EPDM), bitumen remains the major component of most waterproofing materials. It makes up approx. 80% by weight of the final product. The characteristics ... -
Impact of recycled aggregates on selected physical and mechanical characteristics of cement concrete
(Procedia Engineering, 2017)The issue of using construction rubble was recognized in Europe not earlier than in the nineties of the twentieth century. This was due to economic and ecological considerations. However, recycled aggregate is characterized ... -
Improvement of viscoelastic damping for the Hertz contact of particles due to impact velocity
(Procedia Engineering, 2017)One of the most important task in application of the Discrete Element Method (DEM) to simulation of geomaterials is the adequacy of description of contact between interacting mineral particles. In most of the cases the ... -
Influence of aggregate granulometry on air content in concrete mixture and freezing - thawing resistance of concrete
(Procedia Engineering, 2017)Concrete frost resistance is one of the main factors that effects its durability. This is particularly important in the harsh climate regions where the water in concrete pores gets multiple freeze-thaw cycles. Concrete ... -
Chemical technologies for modern concrete production
(Procedia Engineering, 2017)Modern era is linked with global issues in limited energy resources and ecological degradation as hurdles for sustainable industrialization and urbanization. In these contexts, concretes are the most widely adopted ... -
Modification of cement matrix using carbon nanotube dispersions and nanosilica
(Procedia Engineering, 2017)Complex nanodispersed systems with multi-walled carbon nanotubes and nanodispersed silica have a significant impact on the processes of hydration, setting and hardening of construction composites with Portland cement ... -
The influence of a low bearing subgrade on the stability of a shared street (woonerf) foundation
(Procedia Engineering, 2017)The paper presents an example of a shared street (woonerf) implemented on low bearing areas as well as the analysis of its technical condition after several years of exploitation. As soon as in the 19th century a previously ... -
Combined wind engineering, smoke flow and evacuation analysis for a design of a natural smoke and heat ventilation system
(Procedia Engineering, 2017)wind conditions, along with chosen numerical tools such as Computational Fluid Dynamics method and evacuation modelling as their supplement. First, results of comparison of different natural ventilation systems a series ... -
Comparison between different fiber optical strain measurement systems based on the example of reinforcing bars
(Procedia Engineering, 2017)Fiber optical measurement systems come to the fore after having been intensively investigated during the last two decades. One example is Fiber-Bragg-Gratings (FBG). This technology allows a sufficient strain measurement ... -
Analysis of the adoption rate of building information modeling [BIM] and its return on investment [ROI]
(Procedia Engineering, 2017)In an effort to remedy the issue of stagnant labor productivity in the construction industry, Building Information Modeling was proposed in the late 80’s as a new solution for streamlining the design and delivery process ...