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  • 1. Andersson, Göran
    et al.
    Schouenborg, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Utmaningar och innovationer för hållbara städer i fokus i Vinnova-projektet2014Ingår i: Movium Direkt, nr 8, s. 9-12Artikel i tidskrift (Övrigt vetenskapligt)
  • 2.
    Appelquist, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Mueller, Urs
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Utveckling av ett nytt funktionstest för ASR i betong2014Ingår i: CBI-nytt, ISSN 0349-2060, nr 2, s. 10-11Artikel i tidskrift (Övrigt vetenskapligt)
  • 3.
    Appelquist, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Trägårdh, Jan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Korrelation mellan tre provningsmetoder för alkalisilikareaktivitet av svensk krossballast för betong2013Ingår i: Svensk Bergs & Brukstidning, ISSN 0039-6435, Vol. 92, nr 3Artikel i tidskrift (Övrigt vetenskapligt)
  • 4. Arm, Maria
    et al.
    Pascal, Suer
    Technical environmental long-term properties of industrial residues: summary of field and laboratory investigations2011Ingår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 31, nr 1, s. 101-107Artikel i tidskrift (Övrigt vetenskapligt)
  • 5.
    Aulin, C.
    et al.
    RISE, Innventia.
    Karabulut, E.
    Tran, A.
    Waisgberg, L.
    Lindström, T.
    RISE, Innventia.
    Transparent nanocellulosic multilayer thin films on polylactic acid with tunable gas barrier properties2013Ingår i: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, nr 15, s. 7352-7359Artikel i tidskrift (Refereegranskat)
  • 6. Babaahmadi, Arezou
    et al.
    Tang, Luping
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Development of an electro-chemical accelerated ageing method for leaching of calcium from cementitious materials2015Ingår i: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    To facilitate the long term durability predictions of nuclear waste repositories, acceleration methods enhancing calcium leaching process from cementitious materials are needed, even though mechanisms not necessarily comparable to those predominant in a natural leaching process may be developed. In the previously published acceleration methods the samples are very small, which limits further physical or mechanical tests. In this paper, a new acceleration method based on electro-chemical migration is presented. The method although not driven with the same kinetics as in natural leaching, was designed in such a way that unnecessarily destructive by-effects could be minimized while promoting a higher leaching rate for a sample size suitable for further testing the mechanical and physical properties. It is shown that approximately 1 × 106C of electrical charge per paste specimen of size Ø50 × 75 mm (approximately 230 g) is required to leach out the total amount of Portlandite. The chemical and mineralogical properties of leached samples are characterized by various techniques. It is concluded that aged samples are comparable to those leached in a natural leaching process as both are characterized by a layered system comprising an unaltered core delineated by total dissolution of Portlandite followed by a progressive decalcification of the calcium silicate hydrate gel.

  • 7. Bardet, R.
    et al.
    Reverdy, C.
    Belgacem, N.
    Leirset, Ingebjörg
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    Syverud, Kristin
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    Bardet, M.
    Bras, J.
    Substitution of nanoclay in high gas barrier films of cellulose nanofibrils with cellulose nanocrystals and thermal treatment2015Ingår i: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 22, nr 2, s. 1227-1241Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study is to design a nanocellulose based barrier film. For this purpose, cellulose nanofibrils (CNFs) are used as a matrix to create an entangled nanoporous network that is filled with two different nanofillers: nanoclay (reference), i.e. the mineral montmorillonite (MMT) and the bio-based TEMPO-oxidized cellulose nanocrystal (CNC-T), to produce different types of nanocelluloses and their main physical and chemical features were assessed. As expected, films based on neat CNFs exhibit good mechanical performance and excellent barrier properties at low moisture content. The introduction of 32.5 wt% of either nanofiller results in a significant improvement of barrier properties at high moisture content. Finally, thermal treatment of a dried CNF/CNC-T film results in a decrease of the oxygen permeability even at high moisture content (>70 %). This is mainly attributed to the hornification of nanocellulose. A key result of this study is that the oxygen permeability of an all-nanocellulose film in 85 % relative humidity (RH), is similar to CNF film with mineral nanoclay (MMT), i.e. 2.1 instead of 1.7 cm3 µm m−2 day−1 kPa−1, respectively.

  • 8. Billberg, Peter
    Variationsstabil - robust - självkompakterande betong.2009Ingår i: CBI nytt, ISSN 0349-2060, nr 2, s. 8-9Artikel i tidskrift (Övrigt vetenskapligt)
  • 9. Billberg, Peter
    et al.
    Khayat, K H
    L'uso di additivi modificatori di viscosità per aumentare la robustezza dell `SCC2009Ingår i: In concreto : calcestruzzo di qualità (Associazione tecnico-economica del calcestruzzo preconfezionato (ATECAP), ISSN 2039-1218, Vol. 86, s. 74-80Artikel i tidskrift (Övrigt vetenskapligt)
  • 10.
    Billberg, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Utvärdering av formtrycksmodeller vid gjutning med SKB2012Ingår i: CBI-nytt, ISSN 0349-2060, nr 2, s. 2-3Artikel i tidskrift (Övrigt vetenskapligt)
  • 11.
    Blomqvist, Per
    et al.
    RISE - Research Institutes of Sweden, Säkerhet och transport.
    Sandinge, Anna
    RISE - Research Institutes of Sweden, Säkerhet och transport.
    Experimental evaluation of fire toxicity test methods2018Rapport (Övrigt vetenskapligt)
    Abstract [en]

    An experimental evaluation of the most common bench-scale tests methods for fire toxicity was conducted by RISE Fire Research. The background of the work was the on-going discussion in the fire community on the applicability and relevance of these test methods.

    The test methods included in the programme were the ISO/TS 19700 steady-state tube furnace (SSTF), the controlled atmosphere cone calorimeter (CACC), and the EN 45545-2 smoke chamber test (SC). In these tests the production of selected toxic gases was quantitatively analysed using FTIR. Tests for the measurement of toxic gas production were made with eleven different materials used as test specimens, both combustible and non-combustible materials. The materials were commercially available insulation products provided by EURIMA, the sponsor of the project. These materials should not be regarded as typical or fully representative of a product category.

    The evaluation of the results from the different test methods was divided into combustible test specimens and non-combustible test specimens. That was because the test conditions in the first case are greatly influenced by the combustion behaviour of the test specimen, while in the second case the test conditions are more constant.

    A general observation was that there in many cases was correlation between both species composition and level of toxic gas species yields between test methods when the combustion conditions were similar. In cases where yields differed significantly it could in most cases be explained by clear differences in test conditions.

    For combustible materials it was concluded that the SSTF offers the best means for conducting tests at pre-decided and controlled flaming combustion conditions. The CACC does not give steady-state flaming combustion and the influence of vitiation was limited in the tests made. The SC generally accumulates a mixture of gases from both flaming and non-flaming combustion periods in a test, and the yields measured do not in those cases represent any specific combustion stage.

    For non-combustible materials a general observation was that any of the test methods investigated in principle could be used since the influence on the test conditions from the material itself is limited compared to combustible materials. However, there were specific properties and limitations of the different test methods observed that are important to consider.

  • 12. Bolin, L
    et al.
    Johanson, K
    Svensk natursten vinnare i längden2014Ingår i: Sten, nr 3, s. 22-23Artikel i tidskrift (Övrigt vetenskapligt)
  • 13.
    Boubitsas, Dimitrios
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Use of limestone in cement: The effect on strength and chloride transport in mortars2013Ingår i: Nordic Concrete Research, ISSN 0800-6377, nr 47/1, s. 61-80Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper describes studies carried out to examine the influence_x000D_ on strength and chloride ingress when Portland cement is replaced_x000D_ with limestone filler. In the chloride ingress study both an_x000D_ accelerated method and field exposure measurements up to one_x000D_ year were employed. The results show that the method of_x000D_ measuring the resistance to chloride ingress can have a major_x000D_ influence on the assessment of the effect of different binders._x000D_ Further, the effect on chloride resistance, when replacing Portland_x000D_ cement with limestone filler is strongly dependent of the_x000D_ replacement ratio. The effect on compressive strength when_x000D_ replacing Portland cement with limestone filler is also strongly_x000D_ dependent of the replacement ratio.

  • 14.
    Boubitsas, Dimitrios
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Tang, Luping
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    An approach for measurement of chloride threshold values2013Ingår i: International Journal of Structural Engineering, ISSN 1758-7328, Vol. 4, nr 1-2, s. 24-34Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Chloride induced corrosion is one of the major causes for degradation of reinforced concrete structures. One of the most important factors in this process is the critical chloride content (chloride threshold value) in the vicinity of the reinforcement that causes initiation of corrosion. In this work the development of a practice-related approach that includes specimen shape, preconditioning, corrosion measurement techniques, and calculation concepts, for determining the critical chloride content are presented. The results in this study showed that the presented approach for determining chloride threshold values functioned fairly well, and suggestions for further improvement are proposed.

  • 15.
    Boubitsas, Dimitrios
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Tang, Luping
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    The influence of reinforcement steel surface condition on initiation of chloride induced corrosion2015Ingår i: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873, Vol. 48, nr 8, s. 2641-2658Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper describes a part of the work in the development of a "standard" test method for determining chloride threshold values required to initiate corrosion on reinforcement in concrete. The prerequisites of the test set-up are that the test conditions should be reasonably comparable to those in service and the test method should be fairly reproducible and as rapid as possible concerning the slow diffusion nature of the investigated phenomenon. This paper presents the results from a study on the influence of steel bar surface condition on chloride induced corrosion. Various electrochemical techniques were employed in the study to monitor the corrosion behaviour of the embedded bars with three different surface conditions. It is shown that the steel surface condition has a strong effect on the corrosion initiation of reinforcement in concrete, and can likely be the most decisive parameter attributing to the variability in the reported chloride threshold values

  • 16.
    Brander, Linus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Hydrasplit: ett avslutat EU-projekt2014Ingår i: Svensk Bergs & Brukstidning, ISSN 0039-6435, Vol. 93, nr 5-6Artikel i tidskrift (Övrigt vetenskapligt)
  • 17.
    Brander, Linus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Kristallografin i geologin2014Ingår i: Kemivärlden Biotech med Kemisk Tidskrift, ISSN 1650-0725, nr 11, s. 20-22Artikel i tidskrift (Övrigt vetenskapligt)
  • 18.
    Brander, Linus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Tid för ett kvartssamtal2013Ingår i: Svensk Bergs & Brukstidning, ISSN 0039-6435, Vol. 92, nr 2Artikel i tidskrift (Övrigt vetenskapligt)
  • 19.
    Brander, Linus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Schouenborg, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Kompetenscentrum för byggande av och i berg2013Ingår i: Svensk Bergs & Brukstidning, ISSN 0039-6435, Vol. 92, nr 1Artikel i tidskrift (Övrigt vetenskapligt)
  • 20.
    Brodin, Ida
    et al.
    RISE., Innventia.
    Ernstsson, Marie
    YKI, Stockholm, Sweden.
    Gellerstedt, Göran
    RISE., Innventia.
    Sjöholm, Elisabeth
    RISE., Innventia.
    Oxidative stabilisation of kraft lignin for carbon fibre production2012Ingår i: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, nr 2, s. 141-147Artikel i tidskrift (Refereegranskat)
  • 21. Chen, F.
    et al.
    Gällstedt, Mikael
    RISE, Innventia.
    Olsson, R. T.
    Gedde, U. W.
    Hedenqvist, M. S.
    Unusual effects of monocarboxylic acids on the structure and on the transport and mechanical properties of chitosan films2015Ingår i: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 132, s. 419-429Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The purpose of this study was to study the transport of monocarboxylic acids in chitosan films, since this is important for understanding and predicting the drying kinetics of chitosan from aqueous solutions. Despite the wealth of data on chitosan films prepared from aqueous monocarboxylic acid solutions, this transport has not been reported. Chitosan films were exposed to formic, acetic, propionic and butyric acid vapours, it was found that the rate of uptake decreased with increasing molecular size. The equilibration time was unexpectedly long, especially for propionic and butyric acid, nine months. A clear two-stage uptake curve was observed for propionic acid. Evidently, the rate of uptake was determined by acid-induced changes in the material. X-ray diffraction and infrared spectroscopy indicated that the structure of the chitosan acetate and buffered chitosan films changed during exposure to acid and during the subsequent drying. The dried films previously exposed to the acid showed less crystalline features than the original material and a novel repeating structure possibly involving acid molecules. The molar mass of the chitosan decreased on exposure to acid but tensile tests revealed that the films were always ductile. The films exposed to acid vapour (propionic and butyric acid) for the longest period of time were insoluble in the size-exclusion chromatography eluent, and they were also the most ductile/extensible of all samples studied.

  • 22.
    Chinga-Carrasco, Gary
    et al.
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    Kuznetsova, N.
    Garaeva, M.
    Leirset, Ingebjörg
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    Galiullina, G.
    Bleached and unbleached MFC nanobarriers:: Properties and hydrophobisation with hexamethyldisilazane2012Ingår i: Journal of nanoparticle research, ISSN 1388-0764, E-ISSN 1572-896X, Vol. 14Artikel i tidskrift (Refereegranskat)
  • 23.
    Chinga-Carrasco, Gary
    et al.
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    Syverud, Kristin
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    On the porosity and oxygen barrier properties of cellulose nanofibril-based films2011Konferensbidrag (Refereegranskat)
  • 24.
    Chinga-Carrasco, Gary
    et al.
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    Syverud, Kristin
    RISE, Innventia, PFI – Paper and Fiber Research Institute.
    On the structure and oxygen transmission rate of biodegradable cellulose nanobarriers2012Ingår i: Nanoscale Research Letters, ISSN 1931-7573, E-ISSN 1556-276X, Vol. 7Artikel i tidskrift (Refereegranskat)
  • 25. Cooper, Barry J
    et al.
    Marker, Brian R
    Establishment of the "Heritage Stone Task Group" (HSTG)2013Ingår i: Episodes, ISSN 0705-3797, Vol. 36, nr 1, s. 8-10Artikel i tidskrift (Övrigt vetenskapligt)
  • 26. Cornell, D H
    et al.
    Brander, Linus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    The Plat Sjambok Anorthosite and its tonalitic country rocks: mesoproterozoic pre-tectonic intrusions in the Kaaien Terrane, Namaqua-Natal Province, southern Africa2013Ingår i: International Geology Review, ISSN 0020-6814, E-ISSN 1938-2839, Vol. 55, nr 12, s. 1471-1489Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The Plat Sjambok Anorthosite crops out near Prieska Copper Mines in the Namaqua-Natal Province of southern Africa. It is a massif-type anorthosite, previously regarded as a late-tectonic intrusion and part of the ca. 1100 Ma bimodal Keimoes Suite. Our new ion probe U-Pb zircon data show that the Plat Sjambok massif intruded at 1259 ± 5 Ma, before the 1220 Ma Namaqua collision events and is thus approximately 150 million years older than the Keimoes Suite. Despite the proximity to Prieska Mines, the anorthosite is located in the Kaaien Terrane close to the Brakbos Fault, which is the boundary with the Areachap Terrane in which Prieska Mines is situated. We dated the Nelspoortjie Tonalite, the main country rock of the Plat Sjambok Anorthosite, by laser ablation ICPMS at 1273 ± 13 Ma. Both intrusions thus originated concurrently with the 1286-1241 Ma volcanic rocks of the Areachap Group, which developed in a subduction-related arc setting, prior to its collision with the Kaaien Terrane and Kaapvaal Craton. Metamorphic zircon rims in the Plat Sjambok Anorthosite give an age of 1122 ± 7 Ma, a time that corresponds to a quiet period in the Areachap Terrane. We propose a tectonic model in which formation of the Nelspoortjie Tonalite and Plat Sjambok Anorthosite was driven by intrusions from the mantle into a back-arc related tensional environment within the Kaaien Terrane, possibly situated above an Archaean crustal tongue. This led to heating in a thickened crustal setting in which the tonalite originated as a partial melt of amphibolite. The anorthosite then formed as a mixture of mantle-derived gabbro and Archaean crustal rocks, which explains the 2100-2600 Ma zircon-Hf crustal residence ages and the Sm-Nd trend towards an old crustal source. The anorthosite and its country rocks were only juxtaposed with the Prieska Copper Mining District by late-tectonic uplift and transpressional movements on the Brakbos Fault towards the end of the Namaqua tectogenesis.

  • 27. Coronelli, D
    et al.
    Zandi, Kamyab
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Severely corroded RC with cover cracking2013Ingår i: Journal of Structural Engineering, ISSN 0733-9445, E-ISSN 1943-541X, Vol. 139, nr 2, s. 221-232Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    It is not uncommon that cover cracking, spalling, and delamination occur in many corroding RC structures. Previous research has mainly been concerned with corrosion levels leading to cover cracking along the main reinforcement, whereas corrosion of stirrups is often overlooked. Corrosion phenomena, including stirrup corrosion, were studied in an experimental investigation presented in this paper. High levels of corrosion were reached, up to 20% of the main bars and 34% of the stirrups legs. The occurrence of crack initiation, propagation, and cover delamination were examined. The specimens had the shape of a beam end and were corroded with an accelerated method; an imposed current was used, taking care to keep the current density as low as practically possible for the duration of the laboratory testing. The effects of this process were compared with those of natural corrosion using models from the literature. The location of the bar, middle and corner placement, the amount of transverse reinforcement, and the corrosion level of longitudinal reinforcement and of transverse reinforcement were studied. The results concerning the concrete cracking in the experimental campaign are presented. The crack patterns and widths were analyzed, showing differences between specimens with or without stirrups and whether stirrups were corroding. Finally, the effect of corrosion was simulated as the expansion of corrosion products in a finite-element (FE) model, and the results, mainly the crack pattern and width, were compared with the test results. The conclusions addressed the importance of taking into consideration both high corrosion levels and corrosion of stirrups for the assessment of deteriorated structures.

  • 28.
    Davant, Nils
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Östersjöns enda krokodil är nu renoverad2014Ingår i: CBI-nytt, ISSN 0349-2060, nr 1, s. 8-Artikel i tidskrift (Övrigt vetenskapligt)
  • 29.
    Dehestani, Mahdi
    et al.
    Purdue University, West Lafayette, USA.
    Adolfsson, Erik
    RISE - Research Institutes of Sweden, Swerea, Swerea IVF AB.
    Stanciu, Lia A.
    Purdue University, West Lafayette, USA.
    Mechanical properties and corrosion behavior of powder metallurgy iron-hydroxyapatite composites for biodegradable implant applications2016Ingår i: Materials and Design, ISSN 0264-1275, Vol. 109, s. 556-569Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Nine Fe–HA composites were fabricated via powder metallurgy method by varying the amount (2.5, 5, 10 wt%) and particle size (< 1 Όm, 1–10 Όm, 100–200 Όm) of hydroxyapatite (HA) as a bioactive phase in the iron (Fe) matrix. X-ray diffraction did not detect any phase changes in HA after the sintering process. Uniaxial tensile tests measured the strengths of the composites. Polarization and immersion tests estimated the corrosion rates (CR). Yield strength, tensile strength, and ductility of the composites decreased with increasing HA content and decreasing HA particle size, whereas their corrosion rates increased. The strongest composite was Fe–2.5 wt% HA (100–200 Όm) with σy = 81.7 MPa, σu = 130.1 MPa, fracture strain of 4.87%, and CR = 0.23 mmpy. The weakest composite was Fe–10 wt% HA (< 1 Όm) which did not exhibit plastic deformation, fractured at σu = 16.1 MPa with 0.11% strain, and showed the highest CR of 1.07 mmpy. This study demonstrates how the relative particle size between Fe and HA determines the mechanical and corrosion properties of Fe–HA composites, thereby aiding in enhancing future resorbable implant designs. The model can also be used when designing other bioactive composites (i.e. Ti–HA, Mg–HA) via powder metallurgy.

  • 30.
    During, Otto
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Betongens livscykel2013Ingår i: CBI-nytt, ISSN 0349-2060, nr 2, s. 4-Artikel i tidskrift (Övrigt vetenskapligt)
  • 31.
    During, Otto
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Livscykelanalys2011Ingår i: CBI-nytt, ISSN 0349-2060, nr 1, s. 7-Artikel i tidskrift (Övrigt vetenskapligt)
  • 32.
    During, Otto
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Några reflexioner om LCA2013Ingår i: CBI-nytt, ISSN 0349-2060, nr 1, s. 10-Artikel i tidskrift (Övrigt vetenskapligt)
  • 33.
    During, Otto
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Malaga, Katarina
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Life cycle cost analysis on impregnated bridge edge beams2014Ingår i: Restoration of Buildings and Monuments, ISSN 1864-7251, Vol. 20, nr 6, s. 441–446-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    the edge beams. However, results from this study pointed out that in most cases there is a clear economic benefit to impregnate the bridge edge beams even if it has to be repeated every 15 years.

  • 34.
    During, Otto
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Öhrling, P
    Goda möjligheter till höga miljöcertifieringspoäng med betong2014Ingår i: Husbyggaren, ISSN 0018-7968, nr 1, s. 33-36Artikel i tidskrift (Övrigt vetenskapligt)
  • 35.
    Döse, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Radongas i byggnadsmaterial2014Ingår i: CBI-nytt, ISSN 0349-2060, nr 1, s. 10-11Artikel i tidskrift (Övrigt vetenskapligt)
  • 36.
    Döse, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Silfwerbrand, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Evaluation of the I-index by use of a portable hand-held spectrometer and laboratory methods: a risk assessment of Swedish concrete by use of different crushed aggregates2014Ingår i: Mineralproduksjon, ISSN 1893-1057, E-ISSN 1893-1170, nr 5, s. A35-A52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    The recommended levels of ionizing radiation from construction materials in effective dose is set to a maximum of 1 mSv/year, EC (1996, 1999, 2013), ICRP (2007), IAEA (2011). By using a theoretical model proposed by the European Union (1999), this is equivalent to I-index 1. By using of concrete slabs with dimensions of 1.5 m × 1.5 m × 0.15 m, an empirical approach is suggested for the calculation of the I-index of naturally occurring ionizing radiation from construction materials. Measurements of 40K, 226Ra, 232Th and the total gamma radiation were conducted and the I-index values were calculated for each concrete mix. A good linear relationship could be established between measurements performed by the Swedish Cement and Research Institute (CBI) and the laboratory results acquired from the Radiation and Nuclear Safety Authority of Finland (STUK) and Centre de Recherches Pétrographique et Géochimiques/ Le Centre National de la Recherche Scientifique (CRPG/CNRS). The results indicate that 60 % of the investigated construction materials are in agreement with the stipulated levels set out by the EC (1999, 2013). The cause for the higher levels of ionizing radiation is often elevated concentrations of all the radioactive elements measured. Regarding the concrete samples yielding values of I-index > 1, 232Th makes the largest contribution.

  • 37.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Innovationsplattform - ByggaBad 20202013Ingår i: CBI-nytt, ISSN 0349-2060, nr 1, s. 9-Artikel i tidskrift (Övrigt vetenskapligt)
  • 38.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Optimalt skydd av parkeringsdäck vid nybyggnad och renovering2013Ingår i: Parkeringsnytt, ISSN 1103-8721, nr 2, s. 17-Artikel i tidskrift (Övrigt vetenskapligt)
  • 39.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Provläggning i parkeringsgarage2013Ingår i: Parkeringsnytt, ISSN 1103-8721, nr 3, s. 18-19Artikel i tidskrift (Övrigt vetenskapligt)
  • 40.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Provläggning i parkeringsgarage - Åkeshov2014Ingår i: Parkeringsnytt, ISSN 1103-8721, nr 2, s. 18-19Artikel i tidskrift (Övrigt vetenskapligt)
  • 41.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    SBUF-projekt om skydd av parkeringsdäck2014Ingår i: Svensk Bergs & Brukstidning, ISSN 0039-6435, Vol. 93, nr 4Artikel i tidskrift (Övrigt vetenskapligt)
  • 42.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Surt lakvatten från matavfall skadar biogasanläggning2011Ingår i: Husbyggaren, ISSN 0018-7968, Vol. 53, nr 2, s. 34-36Artikel i tidskrift (Övrigt vetenskapligt)
  • 43.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Tätskikt för brobaneplattor av betong2011Ingår i: CBI nytt, ISSN 0349-2060, nr 1, s. 3-4Artikel i tidskrift (Övrigt vetenskapligt)
  • 44.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Tösalt förstör betongen i garage: En lösning på väg2014Ingår i: AMA-nytt Hus, ISSN 1404-8973, nr 1Artikel i tidskrift (Övrigt vetenskapligt)
  • 45.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Urban växtkraft2014Ingår i: Cementa, ISSN 0346-8771, nr 3, s. 13-17Artikel i tidskrift (Övrigt vetenskapligt)
  • 46.
    Edwards, Ylva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Workshop - Gröna tak2014Ingår i: CBI-nytt, ISSN 0349-2060, nr 1, s. 9-Artikel i tidskrift (Övrigt vetenskapligt)
  • 47.
    Edwards, Ylva
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Johansson, Lars
    Garage och p-hus2010Ingår i: Betong, ISSN 1101-9190, nr 1, s. 32-35Artikel i tidskrift (Övrigt vetenskapligt)
  • 48.
    Edwards, Ylva
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Kinnmark, Mikael
    Betongens del att undvika blåsor i beläggningen2010Ingår i: Betong, ISSN 1101-9190, nr 3, s. 38-39Artikel i tidskrift (Övrigt vetenskapligt)
  • 49.
    Edwards, Ylva
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Kinnmark, Mikael
    Betongens del i att undvika blåsor i beläggningen2010Ingår i: Betong, ISSN 1101-9190, nr 3Artikel i tidskrift (Övrigt vetenskapligt)
  • 50.
    Edwards, Ylva
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Pettersson Skog, A
    Systemlösningar för gröna anläggningar/tak2014Ingår i: Bygg & Teknik, ISSN 0281-658X, Vol. 106, nr 4, s. 31-33Artikel i tidskrift (Övrigt vetenskapligt)
123456 1 - 50 av 293
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