Sökning: "betongplattor"

Hittade 5 avhandlingar innehållade ordet betongplattor.

  1. 1. Betongplattor på pelare : dimensioneringsmetoder för plattor med icke vidhäftande spännarmering

    Författare :Ghassem Hassanzadeh; KTH; []
    Nyckelord :Columns; Slabs;

    Sammanfattning : .... LÄS MER

  3. 2. Concrete slab on the ground and moisture control : verification of some methods to improve the moisture conditions in the foundation

    Författare :Lars-Erik Harderup; Avdelningen för Byggnadsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete slab; moisture; repair methods; ventilated foundation; drainage; numerical methods; grunder; grundplattor; platta på mark; betongplattor; fuktskador; reparationsmetoder; dränering; ventilerade konstruktioner; fukt; fukttransport; relativ fuktighet; temperatur; luftflöden; beräkningsmodeller; teori; fältundersökningar; mätresultat;

    Sammanfattning : This work deals with different types of repair methods for concrete slab on the ground damaged by moisture. Many of the available methods involve some kind of mechanical ventilation of the foundation. The basic principle for all these systems is the same. LÄS MER

  4. 3. Concrete pavements’ repair techniques and numerical assessment of dowel bar load transfer efficiency

    Författare :Saima Yaqoob; Johan Silfwerbrand; Larissa Strömberg; Anne Beeldens; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete pavements; Rapid repair; Precast slabs; Dowel bar; Load transfer efficiency; Betongbyggnad; Concrete Structures;

    Sammanfattning : Concrete pavements are a suitable alternative for high-traffic volume roads, concentrated loads and roads exposed to severe weather conditions. In Sweden, among other reasons, the scarcity of concrete pavements is attributed to the need for more national knowledge and expertise in the field. LÄS MER

  5. 4. Redistribution of moisture and ions in cement based materials

    Författare :Magnus Åhs; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Moisture redistribution; ion redistribution; cement based materials; hysteresis; sorption isotherm; scanning;

    Sammanfattning : There were two principal objectives for this thesis. The first was to develop a methodology and evaluation model of moisture redistribution in order to make the future relative humidity in a screeded concrete slab predictable. The second objective was to develop a method to determine the critical humidity for ion transport in concrete. LÄS MER

  7. 5. Nondestructive testing and antenna measurements using UWB radar in industrial applications

    Författare :Vipin Choudhary; Magnus Jansson; Daniel Rönnow; Niclas Björsell; Mats Pettersson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Many industries are rapidly substituting the manual test operations and move towards automated operations using modern technologies.Modern technologies such as digital cameras, sonic sensors, infrared sensors, and radar and lidar systems are used for non-destructive testingoperations. LÄS MER