Download or read book Interface Influence on Moisture Transport in Building Components written by João M. P. Q. Delgado and published by Springer Nature. This book was released on 2019-09-10 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The knowledge of moisture migration inside building materials and construction building components is decisive for the way they behave when in use. The durability, waterproofing, degrading aspect and thermal behaviour of these materials are strongly influenced by the existence of moisture within their interior, which provoke changes in their normal performance, something that is normally hard to predict. Due to the awareness of this problem, the scientific community have per-formed various studies about the existence of moisture inside porous materials. The complex aspects of moisture migration phenomenon tended to encompass monolithic building elements, since the existence of joints or layers contributes to the change of moisture transfer along the respective building element that contribute to the change of mass transfer law. The presentation of an experimental analyses concerning moisture transfer in the interface of material that makes up masonry is described in such a way as to evaluate the durability and/or avoid building damages. In this work it was analysed, during the wetting process, the influence of different types of interface, commonly observed in masonry, such as: perfect con-tact, joints of cement mortar, lime mortar, and the air space interface. The results allow the calculation of the hygric resistance. With these results, it is possible to use any advanced hygrothermal simulation program to study the water transport in building elements, considering different interfaces and their hygric resistance.

Download or read book Drying Kinetics in Building Materials and Components written by João M. P. Q. Delgado and published by Springer Nature. This book was released on 2019-09-24 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents an extensive experimental characterisation of two different ceramic brick blocks with different interface, at different heights, during the drying process. First, a laboratory characterization of the building material used (ceramic bricks and different mortars) is presented, showing their hygrothermal, mechanical and thermal properties, namely, bulk porosity and density, water vapour permeability, capillary absorption, retention curve, moisture diffusivity as a function of moisture content and thermal conductivity. Moreover, the moisture transfer in multi-layered systems was analysed in detail taking into account the interface contact between the building elements.

Download or read book Heat air moisture Transport written by Phalguni Mukhopadhyaya and published by ASTM International. This book was released on 2007 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building Physics Heat Air and Moisture written by Hugo S. L. Hens and published by John Wiley & Sons. This book was released on 2012-10-04 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Note: New editions of this book have been published: the 3rd edition in 2017, and the 4th edition in September 2023. Bad experiences with construction quality, the energy crises of 1973 and 1979, complaints about 'sick buildings', thermal, acoustical, visual and olfactory discomfort, the need for good air quality, the move towards more sustainability, all have accelerated the development of a field, which until some 40 years ago was hardly more than an academic exercise: building physics. Building physics combines several knowledge domains such as heat and mass transfer, building acoustics, lighting, indoor environmental quality and energy efficiency. In some countries, also fire safety is included. Through the application of existing physical knowledge and the combination with information coming from other disciplines, the field helps to understand the physical phenomena governing assembly, building envelope, whole building and built environment performance, although for the last the wording "urban physics" is used. Building physics has a true impact on performance based building design. This volume focuses on heat, air, moisture transfer and its usage in building engineering applications.

Download or read book Building Physics Heat Air and Moisture written by Hugo S. L. C. Hens and published by John Wiley & Sons. This book was released on 2008-03-28 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bad experiences with construction quality, the energy crises of 1973 and 1979, complaints about 'sick buildings', thermal, acoustical, visual and olfactory discomfort, the move towards more sustainability, have all accelerated the development of a field, which until 35 years ago was hardly more than an academic exercise: building physics. Through the application of existing physical knowledge and the combination with information coming from other disciplines, the field helps to understand the physical performance of building parts, buildings and the built environment, and translates it into correct design and construction. This book is the result of thirty years teaching, research and consultancy activity of the author. The book discusses the theory behind the heat and mass transport in and through building components. Steady and non steady state heat conduction, heat convection and thermal radiation are discussed in depth, followed by typical building-related thermal concepts such as reference temperatures, surface film coefficients, the thermal transmissivity, the solar transmissivity, thermal bridging and the periodic thermal properties. Water vapour and water vapour flow and moisture flow in and through building materials and building components is analyzed in depth, mixed up with several engineering concepts which allow a first order analysis of phenomena such as the vapour balance, the mold, mildew and dust mites risk, surface condensation, sorption, capillary suction, rain absorption and drying. In a last section, heat and mass transfer are combined into one overall model staying closest to the real hygrothermal response of building components, as observed in field experiments. The book combines the theory of heat and mass transfer with typical building engineering applications. The line from theory to application is dressed in a correct and clear way. In the theory, oversimplification is avoided. This book is the result of thirty years teaching, research and consultancy activity of the author.

Download or read book Building Pathologies Experimental Campaigns and Numerical Procedures written by J. M. P. Q. Delgado and published by Springer Nature. This book was released on 2023-03-01 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a collection of recent research works related to building pathologies, in order to contribute to the systematization and dissemination of knowledge related to construction pathology, hygrothermal behavior of buildings, durability and diagnostic techniques and, simultaneously, show the most recent advances in this domain. It is divided into six chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues, scientists, students, practitioners, lecturers, and other interested parties to network. At the same time, this book encounters a variety of scientific and engineering disciplines, such as civil, mechanical, and materials engineering.

Download or read book Concrete Structures New Trends and Old Pathologies written by João M. P. Q. Delgado and published by Springer Nature. This book was released on 2023-12-01 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a collection of recent research works related to new trends and pathologies associated with concrete structures, in order to contribute to the systematization and dissemination of knowledge related to moisture transport, durability, construction pathology, diagnostic techniques, and the most recent advances in this domain. The book is divided into five chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues, scientists, students, practitioners, lecturers, and other interested parties to network. At the same time, these topics will be going to the encounter of a variety of scientific and engineering disciplines, such as civil, mechanical, and materials engineering.

Download or read book Research in Building Physics written by J. Carmeliet and published by CRC Press. This book was released on 2020-12-18 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides a broad view of the research performed in building physics at the start of the 21st century. The focus of this conference was on combined heat and mass flow in building components, performance-based design of building enclosures, energy use in buildings, sustainable construction, users' comfort and health, and the urban micro-climate.

Download or read book Numerical Methods for Diffusion Phenomena in Building Physics written by Nathan Mendes and published by Springer Nature. This book was released on 2019-11-29 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the second edition of Numerical methods for diffusion phenomena in building physics: a practical introduction originally published by PUCPRESS (2016). It intends to stimulate research in simulation of diffusion problems in building physics, by providing an overview of mathematical models and numerical techniques such as the finite difference and finite-element methods traditionally used in building simulation tools. Nonconventional methods such as reduced order models, boundary integral approaches and spectral methods are presented, which might be considered in the next generation of building-energy-simulation tools. In this reviewed edition, an innovative way to simulate energy and hydrothermal performance are presented, bringing some light on innovative approaches in the field.

Download or read book Hot Mixed Lime and Traditional Mortars written by Nigel Copsey and published by The Crowood Press. This book was released on 2019-03-25 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditional mortars are eminently workable, effectively porous, economic in use and appropriately durable. Used in buildings for thousands of years, these materials are ideal for repair and conservation work. Unlike cement or modern hydraulic lime, their routine use would make a significant contribution in the struggle against climate change. However, despite the 1975 'lime revival' there remains a deficit in research into the most-used traditional mortars. This book seeks to redress the balance. Drawing upon historic literature, material science and industry case studies, topics covered include: a historical overview of traditional mortars; slaking and mixing hot mixed lime mortars; the essentials of pozzolans, aggregates and lime tempering; plasters, lime washes and sheltercoats, and finally, the revival of interest in the use of like-for-like and compatible mortars. A comprehensive book on the true understanding of hot mixing limes and traditional mortars for the twenty-first century. It is fully illustrated with 286 colour photographs and 11 line artworks. Nigel Copsey is an accredited conservator-restorer and works as a Research Associate in the Dept of Archaeology, University of York.

Download or read book Durability of Building Materials and Components written by Vasco Peixoto de de Freitas and published by Springer Science & Business Media. This book was released on 2013-07-16 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Durability of Building Materials and Components provides a collection of recent research works to contribute to the systematization and dissemination of knowledge related to the long-term performance and durability of construction and, simultaneously, to show the most recent advances in this domain. It includes a set of new developments in the field of durability, service life prediction methodologies, the durability approach for historical and old buildings, asset and maintenance management and on the durability of materials, systems and components. The book is divided in several chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues.

Download or read book Moisture Storage and Transport in Concrete written by Lutz H. Franke and published by John Wiley & Sons. This book was released on 2024-07-29 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive insight on moisture transport in cement-based materials by means of experimental investigations and computer simulations Moisture Storage and Transport in Concrete explores how moisture moves through cementitious materials, focusing on its absorption, storage, and distribution with the help of experimental investigations and computer simulations. The text discusses the different ways moisture moves, such as through vapor or capillary action, as well as how it affects the properties of cement-based materials, offering new insights and models to help understand and predict moisture behavior in these materials, which can be important for construction and maintenance. After a short introduction to the topic, the text is split into five parts. Part I covers surface energetic principles for moisture storage in porous materials. Part II explores real pore structure and calculation methods for composition parameters. Part III explains basic equations for the description of moisture transport. Part IV discusses experimental investigation results with regard to the modeling of moisture transport in concrete materials. Part V showcases modeling of moisture transport, taking into account sorption hysteresis and time-dependent material changes. Written by a highly qualified author, Moisture Storage and Transport in Concrete also includes discussion on: Dependence of surface energy of water on temperature, on relative humidity of air, and for aqueous salt solutions Calculation of the pore size dependent distribution of inner surfaces using the moisture storage function Temperature influence on the capillary transport coefficients and differences between capillary pressure and hydraulic external pressure Adsorption and desorption isotherms of the CEMI reference material and causes of differences between adsorption and desorption isotherms Sorption isotherms and scanning isotherms of hardened cement paste and concrete Moisture Storage and Transport in Concrete is an essential reference to help researchers and professionals to make informed decisions for the construction of concrete-based infrastructure, enabling them to avoid common issues such as corrosion of reinforcement steel, deterioration of concrete strength, and the growth of mold and mildew.

Download or read book High Performance and Optimum Design of Structures and Materials written by W. P. De Wilde and published by WIT Press. This book was released on 2014-06-09 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of novel materials and new structural concepts nowadays is not restricted to highly technical areas like aerospace, aeronautical applications or the automotive industry, but affects all engineering fields including those such as civil engineering and architecture. Addressing issues involving advanced types of structures, particularly those based on new concepts or new materials and their system design, contributions highlight the latest developments in design, optimisation, manufacturing and experimentation. Also included are contributions on new software, numerical methods and different optimisation techniques. Optimisation problems of interest involve those related to size, shape and topology of structures and materials. Most high performance structures require the development of a generation of new materials, which can more easily resist a range of external stimuli or react in a non-conventional manner. Particular emphasis is placed on intelligent structures and materials as well as the application of computational methods for their modelling, control and management. Optimisation techniques have much to offer to those involved in the design of new industrial products. The formulation of optimum design has evolved from the time it was purely an academic topic, able now to satisfy the requirements of real life prototypes. The development of new algorithms and the appearance of powerful commercial computer codes, with easy to use graphical interfaces, have created a fertile field for the incorporation of optimisation in the design process in all engineering disciplines. This proceedings volume is the first from a new edition of the High Performance Design of Structures and Materials and the Optimum Design of Structures conferences, which follows the success of a number of meetings that originated in 1989. Topics covered include: Composite materials & structures; Material characterisation; Experiments and numerical analysis; Steel structures; High performance concretes; Natural fibre composites; Transformable structures; Lightweight structures; Timber structures; Environmentally friendly and sustainable structures; Emerging structural applications; Optimisation in civil engineering; Evolutionary methods in optimisation; Shape and topology optimisation; Aerospace structures; Structural optimisation; Biomechanics application; Material optimisation; Life cost optimisation; Intelligence structures and smart materials.

Download or read book Building Science for Building Enclosures written by John F. Straube and published by . This book was released on 2005 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hygrothermal Behaviour and Building Pathologies written by J.M.P.Q. Delgado and published by Springer Nature. This book was released on 2020-07-13 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent research in the area of construction pathology, hygrothermal behaviour of buildings, service life and diagnostic techniques, and highlights the latest developments in building physics, hygrothermal behaviour, durability and numerical models applied to building materials analysis. Discussing the state of the art in the field, and covering topics relevant to variety of engineering disciplines, such as civil, materials and mechanical engineering, it will appeal to scientists, students, practitioners, lecturers and other stakeholders.

Download or read book Hygrothermal Numerical Simulation Tools Applied to Building Physics written by João M.P.Q. Delgado and published by Springer Science & Business Media. This book was released on 2012-12-15 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a critical review on the development and application of hygrothermal analysis methods to simulate the coupled transport processes of Heat, Air, and Moisture (HAM) transfer for one or multidimensional cases. During the past few decades there has been relevant development in this field of study and an increase in the professional use of tools that simulate some of the physical phenomena that are involved in Heat, Air and Moisture conditions in building components or elements. Although there is a significant amount of hygrothermal models referred in the literature, the vast majority of them are not easily available to the public outside the institutions where they were developed, which restricts the analysis of this book to only 14 hygrothermal modelling tools. The special features of this book are (a) a state-of-the-art of numerical simulation tools applied to building physics, (b) the boundary conditions importance, (c) the material properties, namely, experimental methods for the measurement of relevant transport properties, and (d) the numerical investigation and application The main benefit of the book is that it discusses all the topics related to numerical simulation tools in building components (including state-of-the-art and applications) and presents some of the most important theoretical and numerical developments in building physics, providing a self-contained major reference that is appealing to both the scientists and the engineers. At the same time, this book will be going to the encounter of a variety of scientific and engineering disciplines, such as civil and mechanical engineering, architecture, etc... The book is divided in several chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues.

Download or read book Frost Resistance of Concrete written by R Auberg and published by CRC Press. This book was released on 2004-03-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book forms the proceedings of the international workshop to be held in Essen, Germany. This workshop summarises the conclusion of the technical committee's investigations into the resistance of concrete to freeze-thaw attack, specific in this to resistance with or without de-icing chemicals. It presents the RILEM recommendations on testing the freeze-thaw and de-icing salt resistance of concrete.