Sökning: "flygaska"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet flygaska.

1. 1. Hydration, pore structure, and related moisture properties of fly ash blended cement-based materials : Experimental methods and laboratory measurements

   Författare :Oskar Linderoth; Avdelningen för Byggnadsmaterial; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cement; Murbruk; Betong; Hydratation; Porstruktur; Sorption; Fukttransport; Mineraliska tillsatsmaterial; Flygaska; Cement; Mortar; Concrete; Hydration; Pore structure; Water vapour sorption; Moisture transport; Supplementary cementitious materials; Fly ash;

   Sammanfattning : Cement-based materials, such as mortar and concrete, are the most employed construction materials in the world. Cement is an important component; it reacts with water to form a glue, called cement paste, which causes the material to harden. Today, cement production accounts for a significant portion of the world’s annual carbon dioxide emissions. LÄS MER

3. 2. Alkaline by-products as amendments for remediation of historic mine sites

   Författare :Lotta Sartz; Bert Allard; Ernest Yanful; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oxidized mine waste; lime mud; green liquor dregs; fly ash; lime kiln dust; steel slag; water works granules; Oxiderat gruvavfall; mesakalk; grönlut; flygaska; filterkalk; stålslagg; vattenverksgranuler; NATURAL SCIENCES; NATURVETENSKAP; Environmental chemistry; Miljökemi; Enviromental Science; Miljövetenskap;

   Sammanfattning : Mining has been and still is an important industry in Sweden, it has strongly contributed to the standard of living we have today. Extraction of ore began in the 12th century, but did not come about frequently until the 16th century, which is often seen as the starting age for ore processing and metal extraction. LÄS MER

4. 3. De-icing salt frost scaling in concretes with fly ash or slag with low air void contents

   Författare :Martin Strand; Avdelningen för Byggnadsmaterial; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betong; Tösalt-frost avskalning; Flygaska; Slagg;

   Sammanfattning : .... LÄS MER

5. 4. Experimental Study of De-icing Salt-frost Scaling in Concrete with Low-calcium Fly Ash or Slag : Influence of Drying and Carbonation, and Air Content

   Författare :Martin Strand; Avdelningen för Byggnadsmaterial; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betong; Cement; Beständighet; Tösalt-frost avskalning; Tillsatsmaterial; Masugnsslagg; Flygaska; Concrete; Durability; De-icing salt-frost scaling; Cement based materials; Supplementary cementitious materials SCMs ; Ground granulated blast furnace slag; Low-calcium fly ash;

   Sammanfattning : In order to reduce the net climate impact of concrete production, it is necessary for the industry to undertake several actions. Among these is to include fly ash and slag as supplementary cementitious materials. Accordingly, this project has studied concrete containing low-calcium fly ash or ground-granulated blast-furnace slag. LÄS MER

7. 5. Waste incineration residues : Persistent organic pollutants in flue gas and fly ash from waste incineration

   Författare :Eva Weidemann; Lisa Lundin; Stellan Marklund; Jean-Francois Boily; Henrik Bristav; Kees Olie; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MSW; PCDD; PCDF; PCN; PCB; POP; formation; degradation; case study; flue gas sampling thermal treatment; fly ash; surface characterization;

   Sammanfattning : Modern societies produce large quantities of municipal solid waste (MSW), which is commonly disposed of by incineration. This has several advantages: it reduces the waste’s volume and sterilizes it while also enabling energy recovery. LÄS MER