Browsing Fakultet for ingeniørvitenskap (IV) by Subject "Bygg- og miljøteknikk, Betongteknologi"
Now showing items 1-17 of 17
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Adsorption Isotherms for Lignosulfonate in Cement with Fly Ash and Blast Furnace Slag
(Master thesis, 2016)Plasticizers are used to increase the workability of cement in its fresh state. When adding plasticizers to a paste, the molecules chemically adsorb on the surface of cement particles. This interaction between the plasticizer ... -
Air entrainment in fly ash concrete: effect of sequence of AEA-SP addition
(Master thesis, 2016)Frost resistance of concrete is directly dependent on its air content and parameters of air void system. Nowadays concrete is rarely produced without water-reducing agents, used also in air-entrained mixes. Sequence of ... -
Betong med høy flyveaskedosering
(Master thesis, 2018)Oppgaven har gjennom ulike laboratorieforsøk gjort målinger av betong- og mørtel sammensetninger med en høy flyveaskedosering, i området 50-80% av total bindemiddelmengde. Tilfredsstillende fasthetsutvikling og støpelighet ... -
Betongkonstruksjoner i herdefasen: - Bruk av slaggsement for å begrense omfanget av opprissing
(Master thesis, 2016)Det er to hovedårsaker til at betongen endrer volum under herding. Den ene er varmeutvikling i betongen som følge av den kjemiske reaksjonen mellom sement og vann. Den andre til volumendringer er svinn i ... -
Debonding length in normal concrete and fiber reinforced concrete
(Master thesis, 2016)In this thesis work an investigation program on normal plain reinforced beams (NC) and fibre reinforced concrete (FRC) was performed. In the first part of the study several ways of investigation of the internal cracking ... -
Ice abrasion of concrete, background theory and testing at the NTNU laboratory
(Master thesis, 2012)Ice abrasion has been reviewed. Concrete and ice and their most important properties in accordance to ice abrasion have been studied. Concrete strength and contact pressure between ice and concrete is found to be important ... -
Influence of cracks and spacers on chloride penetration and reinforcement corrosion in concrete
(Master thesis, 2017)This thesis studies the influence of cracks and spacers on chloride penetration and reinforcement corrosion in concrete. The study was conducted in connection with the Norwegian Public Road Authorities (NPRA) E39 project, ... -
Influence of Cracks on Chloride Ingress and Reinforcement Corrosion
(Master thesis, 2017)Chloride induced reinforcement corrosion is a major durability problem in concrete constructions. It is consensus in literature that cracks facilitate chloride ingress, and may initiate early reinforcement corrosion. This ... -
Influence of Cracks on Chloride Ingress and Reinforcement Corrosion
(Master thesis, 2017)Chloride induced reinforcement corrosion is a major durability problem in concrete constructions. It is consensus in literature that cracks facilitate chloride ingress, and may initiate early reinforcement corrosion. This ... -
Investigation of resistivity, porosity and pore solution composition in carbonated mortar prepared with ordinary Portland cement and Portland-fly ash cement
(Master thesis, 2018)This project investigated how carbonation affected resistivity in mortars made with different cement types. The goal was to explain this by investigating the pore solution composition, the pore structure and the moisture ... -
Lavenergibetong til Powerhouse Brattørkaia - prosjektet
(Master thesis, 2017)Powerhouse Brattørkaia er prosjektert med bæresystem i betong og etasjeskiller i form av etterspente plasstøpte flatdekker. Disse skal utføres i betongklasse B35M90. På grunn av oppspenning av trykkrefter og prosjektets ... -
Mechanical Properties and Durability Aspects of Alkali-activated Fly Ash Mortars With and Without Addition of Blast Furnace Slag
(Master thesis, 2018)The production of ordinary Portland cement (OPC) is associated with large emissions of greenhouse gasses. Alkali-activated materials (AAMs), including the subset named geopolymers, are alternative binders with lower ... -
Micro Proportioning - Use of Industrially Produced Filler - Flow Properties of the Matrix Phase as a Function of the Filler's Specific Surface Area
(Master thesis, 2016)Two water/cement-ratios (w/c), three filler contents (fi/c) within each w/c, and two admixture dosages within each fi/c, were measured. This resulted in twelve matrices with the Velde fillers to determine the matrix's flow ... -
Particle Size Distribution and Specific Surface Area Measurements with X-ray SediGraph on Filler, Cement and Fly Ash
(Master thesis, 2017)The focus of this thesis is producing the Particle Size Distribution (PSD) of filler, cement and fly ash using X-ray sedimentation technique. The Micromeritics SediGraph III Plus (5125) applies the sedimentation theory to ... -
Resistance measurements of high resistance concrete
(Master thesis, 2015)The importance of concrete resistivity in durability and service life aspects is widely recognized. Within this project, different measurement approaches were evaluated, with associated limitations and advantages. The ... -
The effect of accelerated ASR on the mechanical properties and degree of damage of concrete over time - with and without uniaxial compressive stress
(Master thesis, 2018)The aim of this master thesis is to investigate the effect on mechanical properties and degree of damage in concrete exposed to accelerated Alkali-silica reaction (ASR) and uniaxial com-pressive stress, and test if the ... -
Utilization of Rock Materials from Tunnelling as Aggregates for Sprayed Concrete
(Master thesis, 2017)The concrete industry in Norway, as well as other countries, is facing a great challenge nowadays. The enormous increase in demand for concrete production and the consequential increase in aggregate consumption have resulted ...