Essays about: "elasticitetsmodul"

Showing result 11 - 15 of 20 essays containing the word elasticitetsmodul.

1. 11. Simulation of Hardening of the MahanaKhon Tower Mat Foundation

   University essay from KTH/Betongbyggnad

   Author : Zakaria Kazi-tani; [2019]
   Keywords : Hydration; MahanaKhon tower; mat foundation; young concrete; temperature development; thermal stresses; cracking; fly ash; finite element analysis; COMSOL Multiphysics; Hydratation; MahanaKhon tower; bottenplatta; ung betong; temperaturutveckling; termiska spänningar; sprickbildning; flygaska; finita elementanalys; COMSOL Multiphysics;

   Abstract : Cement hydration is the result of a series of simultaneous chemical reactions occurring during the production of concrete. An excessive amount of heat is generated, which consequently may give rise to thermal stresses and cause early age cracks in concrete that may affect its structural integrity, and load bearing capacity. READ MORE

3. 12. Investigation of the frost resistance in bacteria treated self-healing concrete

   University essay from Lunds universitet/Avdelningen för Byggnadsmaterial

   Author : Karin Persson; [2016]
   Keywords : Concrete; Hydraulic Structures; Hydro Power; Frost Resistance; Self- healing; Bacteria; Precipitation; Calcium Carbonate Betong; Vattenbyggnader; Vattenkraft; Frostbeständighet; Självläkn- ing; Bakterier; Utfällning; Kalciumkarbonat; Technology and Engineering;

   Abstract : Vattenkraften står för hälften av vårt elbehov i Sverige idag. Merparten av vattenkraftverken är gjutna i betong och som många andra betongkonstruktioner så drabbas betongen av sprickbildning av olika orsaker. För vattenkraften är genomgående sprickor ett problem då dessa skapar läckage. READ MORE

4. 13. Second-order FE Analysis of Axial Loaded Concrete Members According to Eurocode 2

   University essay from KTH/Betongbyggnad

   Author : Nessa Yosef Nezhad Arya; [2015]
   Keywords : Second-order; nonlinear; slender reinforced concrete column; ABAQUS; FE analysis; curvature method; nominal stiffness method; eccentrically loaded; benchmark experiment; parametric study; Andra ordningens effekt; icke-linjär; slank armerad betongpelare; ABAQUS; FE-modellering; krökningsmetoden; styvhetsmetoden; excentrisk last; utvärderingsförsök; parameterstudie;

   Abstract : A nonlinear finite element analysis was performed for an axial loaded reinforced concrete column subjected to biaxial bending taking into account second-order effects. According to Eurocode there are two ways to take second-order effects into consideration: nonlinear FE analysis and hand calculation based on the simplified methods explained in Eurocode 2. READ MORE

5. 14. Rheological changes at the air-liquid interface and examining different kind of magnetic needles

   University essay from Karlstads universitet/Avdelningen för kemiteknik

   Author : Fredrik Anderson; [2015]
   Keywords : Interfacial Shear Rheometer; rheometry; magentic needles; oscillation; surface chemistry; modulus; elastic; viscous; viscoelasticity; Reologi; elasticitetsmodul; oscillering; magnetiska nålar; viskositet; viskoelasticitet;

   Abstract : The main objective in this work was to learn how the instrument, the Interfacial Shear Rheometer (ISR400), worked and to investigate how the rheological properties, storage modulus (elasticity), G' and loss modulus (viscous), G'', changes when the surface pressure at the air-liquid interphase changes. The second objective were to examine the different kind of magnetic needles used in the experiments and to conclude which type of needle is best for its specific field of analysis. READ MORE

6. 15. Triaxial testing of lime/cement stabilized clay : A comparison with unconfined compression tests

   University essay from KTH/Jord- och bergmekanik

   Author : Diyar Amin; [2015]
   Keywords : elasticity modulus; undrained shear strength; compression triaxial test; extension triaxial test; unconfined compression test; elasticitetsmodul; odränerad skjuvhållfasthet; aktiva triaxialförsök; passiva triaxialförsök; enaxligt tryckförsök;

   Abstract : Detta examensarbete presenterar resultat från en laboratoriestudie på en lera från Enköping stabiliserad med kalk och cement. I laboratoriet har isotropiskt konsoliderade odränerade aktiva triaxialförsök utförts på provkroppar och jämförts med enaxliga tryckförsök som utförts på provkroppar från samma inblandningstillfälle. READ MORE