Search for dissertations about: "KTH thesis concrete"

Showing result 1 - 5 of 180 swedish dissertations containing the words KTH thesis concrete.

  1. 1. Ultrafine particles in concrete : Influence of ultrafine particles on concrete properties and application to concrete mix design

    Author : Carsten Vogt; Jonas Holmgren; Björn Lagerblad; Jan-Erik Jonasson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; concrete; ultrafine particles; cement replacement; particle grading; Construction materials; Konstruktionsmaterial;

    Abstract : .... READ MORE

  2. 2. Hydrophobic Impregnation of Concrete Structures : Effects on Concrete Properties

    Author : Anders Selander; Johan Silfwerbrand; Jan Trägårdh; Mårten Janz; Andreas Gerdes; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydrophobic impregnation; silane; siloxane; concrete; surface treatment; water repellent agent; building protection; impregnering; betong; silan; siloxan; ytbehandling; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

    Abstract : Hydrophobic impregnations often referred to as water repellent agents, today mainly consisting of alkylalkoxysilanes, are often used on concrete to prolong the service life of the structure. This is accomplished by protecting the reinforcement bars from chlorides or by changing the moisture content inside. READ MORE

  3. 3. Design for 3D Concrete Printing : Optimisation Through Integrated Workflows

    Author : Jose Hernández Vargas; Johan Silfwerbrand; Helena Westerlind; Roberto Naboni; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D concrete printing; digital fabrication; concrete structures; additive manufacturing; robotic fabrication; design for manufacturing; structural optimisation; functionally graded concrete; topology optimisation.; 3D-betongutskrift; digital tillverkning; betongkonstruktioner; additiv tillverkning; robotstyrd tillverkning; design för tillverkning; strukturell optimering; funktionellt graderad betong; topologioptimering.; Betongbyggnad; Concrete Structures;

    Abstract : The transition from conventional cast concrete to 3D Concrete Printing (3DCP) marks a paradigm shift by directly depositing fresh concrete layer upon layer according to a digital model without the need for a formwork. This technology offers the possibility of achieving innovative and complex geometries in an automated process. READ MORE

  4. 4. CONCRETE FORM[ing]WORK : Design, Fabrication, Simulation and Correlation of Parametrically Patterned Flexible Formwork and Concrete

    Author : Annie Locke Scherer; Oliver Tessmann; Jonas Runberger; Remo Pedreschi; KTH; []
    Keywords : HUMANIORA; HUMANITIES; concrete; flexible formwork; geometry; parametric patterning; craft; smocking; simulation; correlation; betong; flexibel formsättning; geometri; parametrisk mönsterkonstruktion; hantverk; smockning; simulering; korrelation; Architectural Technology; Arkitekturteknik;

    Abstract : Concrete is one of the most commonly used construction materials, yet industrial fabrication continues to default to established standards of planar formwork and uniform cross-sections for the sake of simplicity and predictability. The research conducted within Concrete Form[ing]work explored alternative methods of producing concrete formwork with a simple, technical re-imagination of material: exchanging the familiar, i. READ MORE

  5. 5. Material Properties of Bulk Hydrophobic Concrete in a Nordic Environment

    Author : Patrick Rogers; Johan Silfwerbrand; Tang Luping; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alkyl alkoxysilane; capillary suction; chloride ingress; concrete; hydrophobic agents; triacylglycerides; Betongbyggnad; Concrete Structures;

    Abstract : Concrete in its unaltered form allows the mass transfer of fluids into and out of its microstructure. These fluids can contain detrimental solutes which change the chemistry of the cement paste and/or the corrosion properties of the reinforcement bars, most noticeably hydrogen carbonates (HCO3-), oxygen (O2) and chloride ions (Cl-). READ MORE