Sökning: "Hans Hedlund"
Visar resultat 6 - 9 av 9 avhandlingar innehållade orden Hans Hedlund.
6. Stimulated autogenous self-healing of mechanically and thermally cracked cementitious materials
Sammanfattning : It is estimated that each year, approximately 8 billion cubic meters of concrete are produced worldwide, a vast number comparable to 1 m3 per person, making the construction industry a major contributor to overall global CO2 emissions. Throughout the manufacturing process of the most common cement binder, ordinary Portland cement (OPC), CO2 emissions reach 842 kg per ton of clinker produced. LÄS MER
7. Plastic Shrinkage Cracking In Concrete : Mitigation and Modelling
Sammanfattning : Early-age (up to 24 hours after casting) cracking may become problematic in any concrete structure. It can have a negative influence on the aesthetics of the concrete structure, as well as decreasing the durability and serviceability by facilitating the ingress of harmful materials into the concrete bulk. LÄS MER
8. Applied Modeling of Moisture Phenomena in Concrete
Sammanfattning : This thesis contains new and improved calculation models, based on applied research merging numerical modeling and material research, in the areas of hydration and chemical binding of water, sorption of moisture and transport of moisture in concrete. The proposed model for hydration and chemical binding of water is based on general kinetics modeling and calculates degree of hydration directly, without using of equivalent time of maturity. LÄS MER
9. En konstnärs rätta namn det är hans verk : Orienten, pilgrimen och den svenska poesin i Verner von Heidenstams Vallfart och vandringsår
Sammanfattning : .... LÄS MER