Essays about: "air entraining"

Found 2 essays containing the words air entraining.

1. 1. Experimental Tests of Pre - placed Aggregate Concrete for Concrete Repairs

   University essay from KTH/Betongbyggnad

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

   Abstract : 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. READ MORE

3. 2. Evaluation of air entraining behaviour in concrete using computer aided methods on hardened samples

   University essay from KTH/Betongbyggnad

   Author : Jakub Pawlowicz; [2019]
   Keywords : concrete; air voids; air entraining; AEA; blast furnace slag; BFS; flat-bed scanner; BubbleCounter; traverse method;

   Abstract : Increasing awareness of sustainability in the concrete industry forces structural design and executionto focus on avoiding costly and unpredictable maintenance action, instead paying higher attention todamage prevention by direct actions on early stages of production. One of such approaches, whichdeals with the problem of freezing and thawing deterioration, is intentional air bubble introductionto the concrete mix. READ MORE