Sökning: "long-term strength"

Visar resultat 1 - 5 av 274 avhandlingar innehållade orden long-term strength.

  1. 1. Quasi-instantaneous and Long-term Deformations of High-Performance Concrete with Some Related Properties

    Författare :Bertil Persson; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shrinkage; Relative humidity; Long-term; Hydration; High-Performance Concrete; Elastic modulus; Deformations; Creep; Concrete; Cement; Quasi-instantaneous; Strength; Building construction; Byggnadsteknik;

    Sammanfattning : This report outlines an experimental and numerical study on quasi-instantaneous and long-term deformations of High-Performance Concrete, HPC, with some related properties. For this purpose about two hundred small cylinders and about one thousand cubes of eight types of HPC were cast. The age at loading varied between 18h and 28 days. LÄS MER

  3. 2. Studies of the efficiency of granulated blast furnace slag and limestone filler in mortars : long-term strength and chloride penetration

    Författare :Dimitrios Boubitsas; RISE; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. Durability and Long-term Performance of Adhesively Bonded FRP/steel Joints

    Författare :Mohsen Heshmati; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FRP steel joints; durability; fibre reinforced polymer; cohesive zone modelling; long-term performance; adhesively bonded joints; moisture diffusion;

    Sammanfattning : Fibre reinforced polymer (FRP) composites offer excellent properties, such as high specific strength and stiffness, corrosion resistance and light weight. Over the past four decades, FRPs have been increasingly used for strengthening and repair of bridge structures, and more recently, in the manufacture of whole/hybrid FRP bridges. LÄS MER

  5. 4. Degradation mechanisms and long-term performance of PUR insulation in district heating pipes

    Författare :Alberto Vega; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mechanical performance; thermal conductivity; District heating pipe; degradation mechanisms; long-term performance; rigid polyurethane foam;

    Sammanfattning : District heating networks are used worldwide, especially in Scandinavian countries and also in many other countries, e.g. Germany, Russia, United States, South Korea and China. From an environmental point of view, district heating networks are a good alternative to more traditional building heating systems. LÄS MER

  7. 5. Spinal mobility, muscle strength and function in patients with idiopathic scoliosis. Different aspects on long term outcome

    Författare :Karin Romberg; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; idiopathic scoliosis; long-term outcome; spinal mobility; trunk muscle endurance; back function; thoracic mobility; pulmonary function; validity;

    Sammanfattning : Introduction: The long-term physical function outcome in patients treated for idiopathic scoliosis (IS) during childhood and adolescence has not been fully explored. In addition, there is a lack of studies where different methods to measure pulmonary function are validated in patients with early onset scoliosis. LÄS MER