Blar i Institutt for konstruksjonsteknikk på dokumenttype "Chapter"
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Critical investigation of TGA sample preparation for composite cements
(Chapter, 2015)Thermogravimetric analysis (TGA) is a frequently used technique to investigate the phase assemblages of hydrated cements. However the obtained results are sensitive to the sample preparation. A commonly used technique for ... -
Damage and Failure in an X65 Steel Pipeline Caused by Trawl Gear Impact
(Chapter, 2013)Offshore pipelines subjected to accidental impact loads from trawl gear or anchors may experience large global deformations and large local strains, creating a complex stress and strain history. In this study experiments ... -
Design of a monitoring system for a long-span suspension bridge: optimal sensor placement
(Chapter, 2020)The design of systems for structural health monitoring is an exercise that requires careful planning of optimal sensor locations. The number of possible locations usually outnumbers the number of available sensors, which ... -
Determination of the polarization resistance of steel in carbonated fly-ash concrete- effect of measurement technique
(Chapter, 2017)The polarization resistance (Rp) of a metal gives an indication of the corrosion condition at a given time. The Rp of embedded reinforcement in concrete is usually determined using the linear polarization resistance or the ... -
Durability aspects of cracks in concrete: field observations
(Chapter, 2019)The research presented in this paper briefly summarises findings from a project on impact of cracks on reinforcement corrosion within the Norwegian Public Roads Administration’s R&D program “Ferry-free coastal route E39”. ... -
Durability testing of low clinker blends - chloride ingress in similar strength mortar exposed to seawater
(Chapter; Peer reviewed, 2017)Resistance to chloride ingress of ten different binders was investigated. Most of the binders were prepared with 35% substitution of a new clinker by limestone filler, calcined clay, burnt shale and/or siliceous fly ash. ... -
Dynamic optimization of railway catenary system by turning unwanted lumped-mass into tuned-mass
(Chapter, 2017)The railway catenary is suspended to its supports with droppers, clamps and oth-er fittings. These lumped-masses are made light and small to minimize disturbances. The mass-es cannot be completely removed but can be adjusted ... -
Dynamic Response of a Floating Bridge Structure
(Chapter; Peer reviewed, 2016)A theoretical overview of the stochastic dynamic analysis of a floating bridge structure is presented. Emphasis is on the wave-induced response and the waves on the sea surface are idealized as a zero mean stationary ... -
Early age crack assessment of concrete structures: Experimental and theoretical approaches
(Chapter, 2017)The present paper contains a brief overview of work performed within the Ph.D. thesis "Crack assessment of concrete structures: experimental investigation of decisive parameters" (2010 – 2016). The main objective of the ... -
Earthquake Geotechnics in Offshore Engineering
(Chapter, 2018)This paper presents a number of geotechnical issues encountered in earthquake design of offshore structures and subsea facilities. Parallel with construction of traditional structures such as jackets and gravity-based ... -
Effect of AEA-SP dosage sequence on air content and air void structure in fresh and hardened fly ash mortar
(Chapter; Peer reviewed, 2017)Laboratory measurements show that varying the dosage sequence of air-entraining agent and copolymer in the mix (SP added before, after or together with AEA) greatly affects air entrainment in fresh and hardened fly ash ... -
Effect of materials on sedimentation of cement paste
(Chapter; Peer reviewed, 2013)A conceptual model for the stability of paste was proposed and an experimental system, HYdroStatic Pressure Test (HYSPT), was developed for detecting the sedimentation of fresh cement paste. By accurate measurements of the ... -
Efficient Long-Term Extreme Response Analysis of Floating Bridges Using Multiple Timescale Spectral Analysis
(Chapter, 2022)Floating pontoon bridges offer viable alternatives to cable-supported bridges when crossing long straits. Design of such large floating structures requires estimation of long-term load effects (e.g. 100years) under stochastic ... -
Electro active repair of concrete demonstration of applicability
(Chapter, 2017)Conventional concrete patch repairs have poor durability: 50% fail within ten years. A major cause is insufficient removal of contaminated concrete and insufficient steel cleaning. Chlorides left behind reactivate the ... -
Electrokinetics Application in Concrete and Well Construction
(Chapter, 2020)Electrically induced or coupled transport processes including electrophoresis, electroosmosis and electromigration in solutions and porous media under an external electric field have been extensively studied and employed ... -
End plate connection for rectangular hollow section in bending
(Chapter, 2015)An extended end plate connection for rectangular hollow sections subjected to bending moment is examined. The end plate extends on two sides of the RHS and has one bolt on each side. The connection is commonly considered ... -
Excavated rock materials from tunnels for sprayed concrete
(Chapter; Peer reviewed, 2017)Sand extracted from natural resources is widely used in concrete production nowadays. The increase in demand for concrete production has resulted in shortage of natural sand resources, especially in terms of suitable ... -
Fatigue Capacity of Concrete Subjected to Partially Loaded Areas
(Chapter, 2022)The compressive strength of concrete at bearing areas is increased due to the confinement of surrounding concrete and reinforcement. In these partially loaded areas, local crushing and transverse tension forces must be ... -
FOAM INDEX MEASUREMENTS ON MIXES OF AIR ENTRAINING AGENTS, SUPERPLASTICIZERS AND FLY ASH-CEMENT- FILLER BLENDS
(Chapter, 2016)Foam Index (FI) measurements were made to investigate the foaming efficiency of different AEAs with varying cements (OPC, blended), fly ashes (FA) and fillers, and the effect on foaming of mixing sequence of AEA and SP. ... -
Forming limit diagrams with an FE-based approach for sheets under non-proportional loading
(Chapter, 2009)In this study, LS-DYNA was used to predict the experimental forming limit diagrams (FLDs) for prestrained sheets in aluminum alloy Al2008-T4 found by Graf and Hosford [1]. The original data of Graf and Hosford [1] includes ...