Sökning: "coarse aggregate"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden coarse aggregate.

1. 1. Användning av krävande ballastmaterial vid betongtillverkning - En laborativ utvärdering av absorptionshämmande tillsatsmedel för att möjliggöra användning av glimmerrik bergkross och återvunnen betong som ballast

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Avdelningen för Byggnadsmaterial

   Författare :Anna Hagberg; Andreas Andersson; [2023]
   Nyckelord :Absorption inhibitor; admixtures; aggregate; biotite; calorimetry; compressive strength; concrete; heat development; mica; recycled concrete; workability; Technology and Engineering;

   Sammanfattning : Detta examensarbete utvärderar ett absorptionshämmande tillsatsmedel för att möjliggöra användningen av krävande ballast vid betongtillverkning. Den huvudsakliga anledningen till att ballasten benämns som krävande är att den har ovanligt hög absorptionsförmåga. LÄS MER

3. 2. Use of Polyvinyl chloride (PVC) as an aggregate for concrete

   Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :Habib Loubani; [2023]
   Nyckelord :Polyvinyl chloride; PVC aggregates; natural aggregate concrete; PVC fine aggregates concrete; PVC coarse aggregates concrete;

   Sammanfattning : This study investigates the use of polyvinyl chloride (PVC) as a partial substitute of natural aggregates in concrete as fine and coarse aggregates. Concrete was prepared by replacing natural aggregates with equal volume of grinded PVC, with volume replacement ratio as 10%, 50% for fine and then 10% and 50% for coarse aggregates. LÄS MER

4. 3. Utilization of Rubber and Plastic Waste as  A Partial Replacement of Aggregate for  Improved Sound Insulation

   Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Arkitektur och vatten

   Författare :Nooralhuda Chabuk; [2022]
   Nyckelord :concrete; rubber; plastic. PET; insulation.;

   Sammanfattning : Globally, billions of tons of rubber and plastic waste are produced annually, and because these wastes degrade so slowly (about 450 years for plastic bottles and 80 years for tire rubbers), they are extremely difficult to dispose of. As a result, utilizing these wastes directly in building materials can significantly reduce the environmental load while also increasing the sustainability of the building material. LÄS MER

5. 4. Determination of thermal conductivity for mastic asphalt by combining previously performed laboratory work and TASEF

   Master-uppsats, Luleå tekniska universitet/Byggkonstruktion och brand

   Författare :Martin Kruse Lindgren; [2021]
   Nyckelord :Mastic asphalt; BPGJA-11; thermal conductivity; TASEF; FEM; Timber; Gjutasfalt; BPGJA-11; termisk konduktivitet; TASEF; FEM; Trä;

   Sammanfattning : Mastic asphalt is a material which in Sweden mainly is used as coating for bridges, parking decks, courtyards and terraces. Mastic asphalt is a material built-up by a combination of bitumen (a type of binder), well-graded aggregate (consists of both coarse and fine ballast), filler, sand and sometimes also fine graded macadam. LÄS MER

7. 5. Experimental Tests of Pre - placed Aggregate Concrete for Concrete Repairs

   Master-uppsats, KTH/Betongbyggnad

   Författare :Husseen Hassan; Abdifatah Sahal; [2020]
   Nyckelord :Shrinkage; Compressive strength; Splitting tensile strength; Freeze-thaw; resistance; Pre-placed aggregate concrete; PREPAC; Slag; Krympning; Tryckhållfasthet; Spräckhållfasthet; Frostbeständighet; Injekteringsbetong; PREPAC; Slagg;

   Sammanfattning : Since a large part of the hydropower structures in Sweden was built in the 1950s and 1960s, many of them are slowly but surely exhibiting deterioration. The hydropower companies are facing big challenges and are consequently investing in effective repairing methods since a hydropower structure failure could pose serious consequences and dangers to people, the environment, and the community. LÄS MER