Blar i Institutt for konstruksjonsteknikk på tidsskrift "Construction and Building Materials"
Viser treff 1-18 av 18
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25 years of field exposure of pre-cracked concrete beams; combined impact of spacers and cracks on reinforcement corrosion
(Peer reviewed; Journal article, 2021)The state of corrosion of three pre-cracked concrete beams was investigated after 25 years of marine exposure (atmospheric, tidal and submerged). The influence of inadequate plastic spacers was found to overrule the possible ... -
5 years of in situ reinforcement corrosion monitoring in the splash and submerged zone of a cracked concrete element
(Peer reviewed; Journal article, 2021)Results of more than 5 years of in situ reinforcement corrosion monitoring are presented including continuous measurements of concrete resistivity, temperature, and open circuit corrosion potential measurements. Depth ... -
A density-dependent failure criterion for concrete
(Journal article, 2016)This work focuses on the large effect of small secondary stresses on the compressive strength of concrete. The strength and especially the ductility of structural concrete members depend on local triaxial stress conditions ... -
Aerogel-Incorporated Concrete: An Experimental Study
(Journal article; Peer reviewed, 2014)Lightweight concrete can be prepared by replacing the normal aggregate of concrete, either partly or totally, with lightweight materials. In this work, by incorporating silica aerogel particles into concrete matrix, we ... -
Analysing limitations of the FlowCyl as a one-point viscometer test for cement paste
(Journal article; Peer reviewed, 2019)The FlowCyl is a simple flow viscometer – a modification of the Marsh Cone test apparatus – developed to quantify the flow behaviour of cement pastes. The FlowCyl gives a one-parameter characterisation of rheology called ... -
Calibration of simplified safety formats for structural timber design
(Journal article; Peer reviewed, 2017)A framework for calibrating the reliability elements in simplified semi-probabilistic design safety formats is presented. The objective of calibration is to minimize the increase of construction costs, compared to the ... -
Carbonation-induced corrosion: Investigation of the corrosion onset
(Journal article; Peer reviewed, 2018)There are different views in the literature on the relationship between the location of the carbonation front and the onset of reinforcement corrosion. Theoretically, corrosion starts when the carbonation front reaches the ... -
Comparison of the condition of steel fiber-reinforced shotcrete with water-glass and alkali-free activators after more than 20 years of service in a subsea road tunnel
(Peer reviewed; Journal article, 2022)The in-service condition of steel fiber-reinforced shotcrete installed more than 20 years ago as single-shell rock support lining in the Nordkapp subsea road tunnel was investigated. The novelty of this study is the ... -
The cracking risk of hardening concrete exposed to realistic curing temperature regimes and restraint conditions – Experimental investigations of important parameters
(Peer reviewed; Journal article, 2022)Early age cracking in hardening concrete can be evaluated using dedicated calculation methods. Such calculations require a wide selection of input parameters, e.g. autogenous- and thermal deformation, hydration heat ... -
Experimental investigation of ASR-affected concrete – The influence of uniaxial loading on the evolution of mechanical properties, expansion and damage indices
(Peer reviewed; Journal article, 2020)The alkali silica reaction (ASR) in concrete causes internal localized swelling and micro cracking, which result in expansion and correlated deterioration of the concrete material. The stress state of the concrete is known ... -
Experimental investigation on axially-loaded threaded rods inserted perpendicular to grain into cross laminated timber
(Journal article; Peer reviewed, 2023)This paper presents an experimental work on axially-loaded threaded rods inserted perpendicular to grain into the narrow face of cross laminated timber (CLT). Penetration length, loading type (tension, compression, fully ... -
Impact of electrodialytic remediation of MSWI fly ash on hydration and mechanical properties of blends with Portland cement
(Peer reviewed; Journal article, 2021)Municipal solid waste incineration (MSWI) residues such as fly ash and air pollution control (APC) residues may serve as new supplementary cementitious materials (SCM). These SCMs may, however, require a pre-treatment to ... -
Moment resisting splice of timber beams using long threaded rods and grout-filled couplers – Experimental results and predictive models
(Journal article, 2017)In order to achieve larger spans of timber arch bridges, glulam massive timber sections must be spliced on-site by moment resisting and rotationally stiff joints. In this paper, a novel timber splice connection utilizing ... -
Moment-resisting beam-to-column timber connections with inclined threaded rods: Structural concept and analysis by use of the component method
(Peer reviewed; Journal article, 2022)The use of moment-resisting frames with semi-rigid connections as a lateral load-carrying system in timber buildings can reduce the need for bracing with diagonal members or walls and allow for more open and flexible ... -
On strength and stiffness of screwed-in threaded rods embedded in softwood
(Peer reviewed; Journal article, 2020)Screwed-in threaded rods with wood screw threads feature high axial capacity and stiffness and can be used as fasteners in highly resistant and stiff timber connections. The purpose of the present paper is to review the ... -
Phase development and mechanical response of low-level cement replacements with wood ash and washed wood ash
(Peer reviewed; Journal article, 2020)A significant increase is seen worldwide in the amounts of wood ashes (WAs) produced by the heating and power industry. This study investigates the potential utilisation of two different WAs as low-level cement replacements, ... -
Portland metakaolin cement containing dolomite or limestone – Similarities and differences in phase assemblage and compressive strength
(Journal article; Peer reviewed, 2017)The scarceness of high-quality limestone obliges the cement industry to consider alternative supplementary cementitious materials (SCMs) for the production of blended cements. This study investigated the potential usage ... -
Reaction mechanisms of wood ash for use as a partial cement replacement
(Peer reviewed; Journal article, 2021)An increase in the produced amounts of wood ashes (WAs) is seen worldwide. In this study, the potential use of two representative WAs as a partial cement replacement is investigated. The WAs originate from combustion of ...