Del 1 Intervjuer har utförts med 41 personer med erfarenhet av relining av avloppsinstallationer ... more Del 1 Intervjuer har utförts med 41 personer med erfarenhet av relining av avloppsinstallationer ochmed ett beställarperspektiv. Dessa personer med insyn i minst 300 relinade fastigheter ärverksamma i fastighetsbolag, förvaltningsbolag, spolföretag, försäkringsbolag och branschföreningar. De relinade fastigheterna har haft cirka 50 lägenheter i genomsnitt. Utredningen omfattar alltså cirka 15 000 lägenheter. Den viktigaste slutsatsen av intervjuundersökningen är att relining har fungerat tillfredsställande i de flesta fall. Det vanligaste problemet som kan ge vattenskador vid själva reliningarbetet är att renspolningen orsakar läckage; enligt intervjuerna kan mindre än 5 procent av fallen hänföras till den kategorin. I vissa fall kan rörledningar också bedömas vara för sköra så att reliningföretaget avråder från relining. I mindre än 5 procent av fallen har relining inte lyckats täta eventuellt läckage direkt. I andra fall (också mindre än 5 procent) har reliningen orsakat hinder i ...
Denna jamforande livscykelbedomning belyser tre huvudalternativ for renovering av avloppsror; ror... more Denna jamforande livscykelbedomning belyser tre huvudalternativ for renovering av avloppsror; rorbyte, relining med rorfoder (strumpmetoden, CIPP-lining) som aven kallas sliplining och renovering i ...
It is well known that from the 160 million buildings in the EU the majority of them (estimated 85... more It is well known that from the 160 million buildings in the EU the majority of them (estimated 85%) are thermally inefficient. Therefore, it is of serious matter that existing buildings become energy renovated. However, experiences gathered during the last decade showed that this process is not straightforward. This project will focus on early phases of a building project when the building owner still hasn't decided what to do and there is a possibility to influence the thoughts about renovation in order to plan for renovation measures that will make the building operate in a more sustainable way. The main purpose of this study is to present the main aspects of initiatives in the field of energy upgrading of buildings in Europe today. Through a comprehensive literature review, light will be shed on issues related to both national policies and the main financial instruments that are currently pressing the energy renovation of buildings. Both the obstacles and the contribution of ...
The motivation for development of energy efficiency and implementation of novel advanced material... more The motivation for development of energy efficiency and implementation of novel advanced materials applied in buildings can be traced to increasing energy costs in conjunction with an enhanced environmental awareness among people. This doctoral dissertation presents contributions towards sustainable building, where factors such as building technology, energy efficiency in buildings, workers' health issues during construction measures, and certain economic considerations for renovation of buildings have been considered. The research study aims to provide a knowledge base for motivating building owners to renovate buildings based on energy efficiency and improved indoor environment. The initial phase of the research study identifies a detailed description of common drivers, expected in renovation projects by building owners. In the second phase, an information base is identified which may facilitate the bidding processes for decision makers by means of technological, social and economic aspects. The aforementioned information base can also contribute to attentive decisions regarding sustainable renovation and energy saving measures. A strategy was developed within the Renovation Workshop of Riksbyggen, in order to promote energy saving measures concurrent with major renovations in residential buildings. This operational decision support process was applied in a tenant owners' cooperative in Sweden. The objective of this process was to showcase and more importantly to implement energy saving measures, based on knowledge transfer between different parties involved in the renovation project. For the conducted case study, this process was shown to be of great importance when decisions regarding energy saving measures in conjunction with scheduled renovations are being planned. A unique case study was conducted on two of the most commonly used environmental certification programs for buildings in Sweden; Environmental Building (Miljobyggnad) and GreenBuilding. Following a granted access to a limited database of submitted applications to Sweden Green Building Council, the most common mistakes in these were identified and categorized. This study contributed to further understanding about the level of ability among building consultants, comprehension of environmental certification, and enhancement of the ability to produce high-quality calculations concerning building-related energy usage. In addition, this insight can provide a basis for planning of continuing education of consultants within the field of building technology. For a church building, a study was conducted subsequent to an exchange of an existing electric coil heating system to a hydronic ground source heat pump system. Analyses of the energy demand and energy signature, prior to and after installation were carried out. The replacement of the original heating system with a ground source heat pump system for the church building constitutes a reduced energy consumption level of approximately 66%, at the average outside temperature of -2.30 °C. This study demonstrated that data from a detailed electric bill can be utilized in order to obtain the energy signature of the building and henceforth assess the energy savings. One aspect of the research, examined the decision making process related to sustainable renovation and refurbishment in buildings. The utilized methodology identified three distinct phases in order to instigate an engagement in sustainable renovation, by means of questionnaires and semi-structured interviews. In particular, the attitudes of stakeholders in Sweden, Denmark and Cyprus to sustainable building were studied through three separate case studies. Within the framework of this study, it was identified that building physics and durability are among the most important drivers for energy renovation. The results provided an insight into the renovation process in the aforementioned countries and identified that drivers such as improvement of indoor air quality and elimination of moisture in the building envelope are also of crucial importance. Another aspect of the conducted research highlights workplace accidents occurring within the Swedish construction sector. The purpose of this study was to serve as a useful tool to track the working environments of construction workers in order to reduce health and safety issues within the construction sector. The findings of this research suggest that despite laws, regulations or additional factors that seek to ensure a safe and healthy environment for construction workers, the Swedish construction work force still faces challenges. Moreover, it is identified that construction workers participating in the study call for additional measures to ensure occupational health and safety. Improved knowledge of economic performance and technical results of renovations can contribute to a snowball effect, with more property owners recognizing the value of energy aspects and thus provide an increased level of…
2-Ethyl hexanol from hydrolysed di-octyl-phthalate (DOP) may cause a secondary emission from buil... more 2-Ethyl hexanol from hydrolysed di-octyl-phthalate (DOP) may cause a secondary emission from building products such as PVC carpets and/or glues causing indoor air pollution. In the present study, a micro-scale headspace vial (MHV) method, earlier developed by us, was refined to study the degradation of DOP and di-isononyl phthalate (DINP) in humid and alkaline environments. By HS-SPME it was possible
Projektet Riksbyggens renoveringsverkstad del 1 och del 2 drevs som ett gemensamt projekt av Riks... more Projektet Riksbyggens renoveringsverkstad del 1 och del 2 drevs som ett gemensamt projekt av Riksbyggen, KTH och Sustainable Innovation med syfte att lyfta fram goda exempel på renoveringsinsatser hos bostadsrättsföreningar som kan bidra till att minska energianvändningen. Projektet gjordes i två delar under 2010-2014. En slutsats från del 1 är att det bör göras fler utvärderingar på genomförda energisparprojekt. Dessa projekts ekonomiska nytta bör så bedömas efter sitt ekonomiska resultat och inte på sin eventuella pay-off tid. Den huvudsakliga slutsatsen av detta arbete är att det finns energibesparande åtgärder som är direkt lönsamma. Det är då närmast en pedagogisk och politisk uppgift att se till att så många sådana projekt som möjligt blir genomförda. Andra noteringar är att eftersom det är bostadsrättsföreningarna själva som har att besluta om rätta och möjliga åtgärder. De behöver dels utvärderade exempel som kan tjäna som inspiration, samt ofta en förhöjd kunskap om sin...
Pipe failure and leakage is a problematic issue and the<br> traditional solution of replaci... more Pipe failure and leakage is a problematic issue and the<br> traditional solution of replacing the pipes is costly and time<br> consuming. Rehabilitation by relining materials based on polymer<br> composites is an alternative solution towards the degradation problem<br> of the old piping. This paper provides a brief summary of advances in<br> technology, methods and materials for relining as well as a summary<br> of the degradation analyses of the two main composite materials used<br> for relining, rubber filled epoxy and reinforced polyester baltoflake<br> when they are exposed in deionized water and elevated temperature<br> up to 80°C for a duration of 2-14 months in the laboratory.
Some of the main causes for degradation of polymeric materials are thermal aging, hydrolysis, oxi... more Some of the main causes for degradation of polymeric materials are thermal aging, hydrolysis, oxidation or chemical degradation by acids, alkalis or water. The first part of this paper provides a brief summary of advances in technology, methods and specification of composite materials for relining as a rehabilitation technique for sewage systems. The second part summarizes an investigation on frequently used composite materials for relining in Sweden, the rubber filled epoxy composite and reinforced polyester composite when they were immersed in deionized water or in dry conditions, and elevated temperatures up to 80°C in the laboratory. The tests were conducted by visual inspection, microscopy, Dynamic Mechanical Analysis (DMA), Differential Scanning Calorimetry (DSC) as well as mechanical testing, three point bending and tensile testing.
Five different types of seams made of single-ply roofing membranes were investigated for water du... more Five different types of seams made of single-ply roofing membranes were investigated for water durability. Test samples were exposed to either distilled, acidic or alkaline solution. Mechanical strength of seams and materials was tested with and without immersion by either tensile test, lap-shear test or T-peel test. Mechanical strength and fracture mechanisms in different tests were discussed. After 6000 h of exposure in water, for some products the changes in either mechanical strength or fracture mechanisms of a sample were in some cases related to their mechanical strengths. It is concluded that the long-time exposure of watertight seams to ponding water on flat roofs can cause a decrease in mechanical strength of seams. Der EinfluB von Wasser auf die mechanische Festigkeit von Fugen in Einschicht-Abdeckungen bei Flachdiichern Fugen in Werkstoffen auf Basis SBS, APP, ECB, PVC und EPDM, die in Einschicht-Abdeckungen van Flachdiichern eingesetzt werden, sind auf ihre Wasserbestiindigkeit untersucht warden. Die Experimente wurden mil destilliertem, saurem und alkalischem Wasser durchgefGhrt. Die mechanische Festigkeit der Fugen und der Materialien wurde durch Zug-, Schub-und Abzugsprufungen ermittelt. Die verschiedenen bei den Prufungen auftretenden Bruchmechanismen wurden diskutiert. Einige Produkte zeigen nach 6000 h Aufbewahrung im Wasser Veriinderungen. Die SchluBfolgerung isl, daB Fugen in Einschicht-Abdichtungen, die längere Zeit dem Wasser ausgesetzt werden, eine verringerte mechanische Festigkeit aufweisen k6nnen.
In this paper, rehabilitation methods for piping systems by relining in Sweden are reviewed. The ... more In this paper, rehabilitation methods for piping systems by relining in Sweden are reviewed. The paper also includes analyzing relined pipes which have been in the field between one to ten years to ...
Simhallar har olika problem, avseende bade halsoaspekter och bestandighet. Dessutom forbrukar sim... more Simhallar har olika problem, avseende bade halsoaspekter och bestandighet. Dessutom forbrukar simhallar stora resurser ur ett ekonomiskt perspektiv. Neris-projektet har skaffat sig ett helikopterpe ...
The comparison of building clusters based on energy and the quality of energy (exergy) is akey as... more The comparison of building clusters based on energy and the quality of energy (exergy) is akey aspect for determining steps towards cleaner energy supply structures. This papercompares two building ...
Knivstamodellen BoKvar for renovering av bostader : Hur man kan fa en vettig avvagning mellan ins... more Knivstamodellen BoKvar for renovering av bostader : Hur man kan fa en vettig avvagning mellan insatser och hyreshojning
Vattenskadorna kostar forsakringsbolag och fastighetsagare stora belopp varje ar. I runda tal ske... more Vattenskadorna kostar forsakringsbolag och fastighetsagare stora belopp varje ar. I runda tal sker det varje ar vattenskador i en lagenhet av 150 och varje skada kostar i snitt nagot over 100 000 k ...
Syftet med detta projekt ar att studera funktionen av elektroosmos som atgard mot fukt-problem i ... more Syftet med detta projekt ar att studera funktionen av elektroosmos som atgard mot fukt-problem i byggnader i Sverige samt att utifran detta ge rekommendationer kring om och i sa fall nar det ar lam ...
Del 1 Intervjuer har utförts med 41 personer med erfarenhet av relining av avloppsinstallationer ... more Del 1 Intervjuer har utförts med 41 personer med erfarenhet av relining av avloppsinstallationer ochmed ett beställarperspektiv. Dessa personer med insyn i minst 300 relinade fastigheter ärverksamma i fastighetsbolag, förvaltningsbolag, spolföretag, försäkringsbolag och branschföreningar. De relinade fastigheterna har haft cirka 50 lägenheter i genomsnitt. Utredningen omfattar alltså cirka 15 000 lägenheter. Den viktigaste slutsatsen av intervjuundersökningen är att relining har fungerat tillfredsställande i de flesta fall. Det vanligaste problemet som kan ge vattenskador vid själva reliningarbetet är att renspolningen orsakar läckage; enligt intervjuerna kan mindre än 5 procent av fallen hänföras till den kategorin. I vissa fall kan rörledningar också bedömas vara för sköra så att reliningföretaget avråder från relining. I mindre än 5 procent av fallen har relining inte lyckats täta eventuellt läckage direkt. I andra fall (också mindre än 5 procent) har reliningen orsakat hinder i ...
Denna jamforande livscykelbedomning belyser tre huvudalternativ for renovering av avloppsror; ror... more Denna jamforande livscykelbedomning belyser tre huvudalternativ for renovering av avloppsror; rorbyte, relining med rorfoder (strumpmetoden, CIPP-lining) som aven kallas sliplining och renovering i ...
It is well known that from the 160 million buildings in the EU the majority of them (estimated 85... more It is well known that from the 160 million buildings in the EU the majority of them (estimated 85%) are thermally inefficient. Therefore, it is of serious matter that existing buildings become energy renovated. However, experiences gathered during the last decade showed that this process is not straightforward. This project will focus on early phases of a building project when the building owner still hasn't decided what to do and there is a possibility to influence the thoughts about renovation in order to plan for renovation measures that will make the building operate in a more sustainable way. The main purpose of this study is to present the main aspects of initiatives in the field of energy upgrading of buildings in Europe today. Through a comprehensive literature review, light will be shed on issues related to both national policies and the main financial instruments that are currently pressing the energy renovation of buildings. Both the obstacles and the contribution of ...
The motivation for development of energy efficiency and implementation of novel advanced material... more The motivation for development of energy efficiency and implementation of novel advanced materials applied in buildings can be traced to increasing energy costs in conjunction with an enhanced environmental awareness among people. This doctoral dissertation presents contributions towards sustainable building, where factors such as building technology, energy efficiency in buildings, workers' health issues during construction measures, and certain economic considerations for renovation of buildings have been considered. The research study aims to provide a knowledge base for motivating building owners to renovate buildings based on energy efficiency and improved indoor environment. The initial phase of the research study identifies a detailed description of common drivers, expected in renovation projects by building owners. In the second phase, an information base is identified which may facilitate the bidding processes for decision makers by means of technological, social and economic aspects. The aforementioned information base can also contribute to attentive decisions regarding sustainable renovation and energy saving measures. A strategy was developed within the Renovation Workshop of Riksbyggen, in order to promote energy saving measures concurrent with major renovations in residential buildings. This operational decision support process was applied in a tenant owners' cooperative in Sweden. The objective of this process was to showcase and more importantly to implement energy saving measures, based on knowledge transfer between different parties involved in the renovation project. For the conducted case study, this process was shown to be of great importance when decisions regarding energy saving measures in conjunction with scheduled renovations are being planned. A unique case study was conducted on two of the most commonly used environmental certification programs for buildings in Sweden; Environmental Building (Miljobyggnad) and GreenBuilding. Following a granted access to a limited database of submitted applications to Sweden Green Building Council, the most common mistakes in these were identified and categorized. This study contributed to further understanding about the level of ability among building consultants, comprehension of environmental certification, and enhancement of the ability to produce high-quality calculations concerning building-related energy usage. In addition, this insight can provide a basis for planning of continuing education of consultants within the field of building technology. For a church building, a study was conducted subsequent to an exchange of an existing electric coil heating system to a hydronic ground source heat pump system. Analyses of the energy demand and energy signature, prior to and after installation were carried out. The replacement of the original heating system with a ground source heat pump system for the church building constitutes a reduced energy consumption level of approximately 66%, at the average outside temperature of -2.30 °C. This study demonstrated that data from a detailed electric bill can be utilized in order to obtain the energy signature of the building and henceforth assess the energy savings. One aspect of the research, examined the decision making process related to sustainable renovation and refurbishment in buildings. The utilized methodology identified three distinct phases in order to instigate an engagement in sustainable renovation, by means of questionnaires and semi-structured interviews. In particular, the attitudes of stakeholders in Sweden, Denmark and Cyprus to sustainable building were studied through three separate case studies. Within the framework of this study, it was identified that building physics and durability are among the most important drivers for energy renovation. The results provided an insight into the renovation process in the aforementioned countries and identified that drivers such as improvement of indoor air quality and elimination of moisture in the building envelope are also of crucial importance. Another aspect of the conducted research highlights workplace accidents occurring within the Swedish construction sector. The purpose of this study was to serve as a useful tool to track the working environments of construction workers in order to reduce health and safety issues within the construction sector. The findings of this research suggest that despite laws, regulations or additional factors that seek to ensure a safe and healthy environment for construction workers, the Swedish construction work force still faces challenges. Moreover, it is identified that construction workers participating in the study call for additional measures to ensure occupational health and safety. Improved knowledge of economic performance and technical results of renovations can contribute to a snowball effect, with more property owners recognizing the value of energy aspects and thus provide an increased level of…
2-Ethyl hexanol from hydrolysed di-octyl-phthalate (DOP) may cause a secondary emission from buil... more 2-Ethyl hexanol from hydrolysed di-octyl-phthalate (DOP) may cause a secondary emission from building products such as PVC carpets and/or glues causing indoor air pollution. In the present study, a micro-scale headspace vial (MHV) method, earlier developed by us, was refined to study the degradation of DOP and di-isononyl phthalate (DINP) in humid and alkaline environments. By HS-SPME it was possible
Projektet Riksbyggens renoveringsverkstad del 1 och del 2 drevs som ett gemensamt projekt av Riks... more Projektet Riksbyggens renoveringsverkstad del 1 och del 2 drevs som ett gemensamt projekt av Riksbyggen, KTH och Sustainable Innovation med syfte att lyfta fram goda exempel på renoveringsinsatser hos bostadsrättsföreningar som kan bidra till att minska energianvändningen. Projektet gjordes i två delar under 2010-2014. En slutsats från del 1 är att det bör göras fler utvärderingar på genomförda energisparprojekt. Dessa projekts ekonomiska nytta bör så bedömas efter sitt ekonomiska resultat och inte på sin eventuella pay-off tid. Den huvudsakliga slutsatsen av detta arbete är att det finns energibesparande åtgärder som är direkt lönsamma. Det är då närmast en pedagogisk och politisk uppgift att se till att så många sådana projekt som möjligt blir genomförda. Andra noteringar är att eftersom det är bostadsrättsföreningarna själva som har att besluta om rätta och möjliga åtgärder. De behöver dels utvärderade exempel som kan tjäna som inspiration, samt ofta en förhöjd kunskap om sin...
Pipe failure and leakage is a problematic issue and the<br> traditional solution of replaci... more Pipe failure and leakage is a problematic issue and the<br> traditional solution of replacing the pipes is costly and time<br> consuming. Rehabilitation by relining materials based on polymer<br> composites is an alternative solution towards the degradation problem<br> of the old piping. This paper provides a brief summary of advances in<br> technology, methods and materials for relining as well as a summary<br> of the degradation analyses of the two main composite materials used<br> for relining, rubber filled epoxy and reinforced polyester baltoflake<br> when they are exposed in deionized water and elevated temperature<br> up to 80°C for a duration of 2-14 months in the laboratory.
Some of the main causes for degradation of polymeric materials are thermal aging, hydrolysis, oxi... more Some of the main causes for degradation of polymeric materials are thermal aging, hydrolysis, oxidation or chemical degradation by acids, alkalis or water. The first part of this paper provides a brief summary of advances in technology, methods and specification of composite materials for relining as a rehabilitation technique for sewage systems. The second part summarizes an investigation on frequently used composite materials for relining in Sweden, the rubber filled epoxy composite and reinforced polyester composite when they were immersed in deionized water or in dry conditions, and elevated temperatures up to 80°C in the laboratory. The tests were conducted by visual inspection, microscopy, Dynamic Mechanical Analysis (DMA), Differential Scanning Calorimetry (DSC) as well as mechanical testing, three point bending and tensile testing.
Five different types of seams made of single-ply roofing membranes were investigated for water du... more Five different types of seams made of single-ply roofing membranes were investigated for water durability. Test samples were exposed to either distilled, acidic or alkaline solution. Mechanical strength of seams and materials was tested with and without immersion by either tensile test, lap-shear test or T-peel test. Mechanical strength and fracture mechanisms in different tests were discussed. After 6000 h of exposure in water, for some products the changes in either mechanical strength or fracture mechanisms of a sample were in some cases related to their mechanical strengths. It is concluded that the long-time exposure of watertight seams to ponding water on flat roofs can cause a decrease in mechanical strength of seams. Der EinfluB von Wasser auf die mechanische Festigkeit von Fugen in Einschicht-Abdeckungen bei Flachdiichern Fugen in Werkstoffen auf Basis SBS, APP, ECB, PVC und EPDM, die in Einschicht-Abdeckungen van Flachdiichern eingesetzt werden, sind auf ihre Wasserbestiindigkeit untersucht warden. Die Experimente wurden mil destilliertem, saurem und alkalischem Wasser durchgefGhrt. Die mechanische Festigkeit der Fugen und der Materialien wurde durch Zug-, Schub-und Abzugsprufungen ermittelt. Die verschiedenen bei den Prufungen auftretenden Bruchmechanismen wurden diskutiert. Einige Produkte zeigen nach 6000 h Aufbewahrung im Wasser Veriinderungen. Die SchluBfolgerung isl, daB Fugen in Einschicht-Abdichtungen, die längere Zeit dem Wasser ausgesetzt werden, eine verringerte mechanische Festigkeit aufweisen k6nnen.
In this paper, rehabilitation methods for piping systems by relining in Sweden are reviewed. The ... more In this paper, rehabilitation methods for piping systems by relining in Sweden are reviewed. The paper also includes analyzing relined pipes which have been in the field between one to ten years to ...
Simhallar har olika problem, avseende bade halsoaspekter och bestandighet. Dessutom forbrukar sim... more Simhallar har olika problem, avseende bade halsoaspekter och bestandighet. Dessutom forbrukar simhallar stora resurser ur ett ekonomiskt perspektiv. Neris-projektet har skaffat sig ett helikopterpe ...
The comparison of building clusters based on energy and the quality of energy (exergy) is akey as... more The comparison of building clusters based on energy and the quality of energy (exergy) is akey aspect for determining steps towards cleaner energy supply structures. This papercompares two building ...
Knivstamodellen BoKvar for renovering av bostader : Hur man kan fa en vettig avvagning mellan ins... more Knivstamodellen BoKvar for renovering av bostader : Hur man kan fa en vettig avvagning mellan insatser och hyreshojning
Vattenskadorna kostar forsakringsbolag och fastighetsagare stora belopp varje ar. I runda tal ske... more Vattenskadorna kostar forsakringsbolag och fastighetsagare stora belopp varje ar. I runda tal sker det varje ar vattenskador i en lagenhet av 150 och varje skada kostar i snitt nagot over 100 000 k ...
Syftet med detta projekt ar att studera funktionen av elektroosmos som atgard mot fukt-problem i ... more Syftet med detta projekt ar att studera funktionen av elektroosmos som atgard mot fukt-problem i byggnader i Sverige samt att utifran detta ge rekommendationer kring om och i sa fall nar det ar lam ...
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