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Durability Based Indexes of Coarse Aggregate for Cement Concrete
Indexes of coarse aggregate, such as powder content, sediment percentage, maximum particle size, gradation and coarse aggregate volume ratio, are experimented and analyzed for impermeability, cracking resistance and freezing and thawing. Recommendation value based concrete durability is provided. (1) Coarse aggregate should be washed to keep surface clean during producing. (2) Clay content should not exceed 1%. (3) Coarse aggregate maximum size should not be greater than 26.5mm. 19mm and 26.5mm is the beat generally. (4) Smaller equivalent size should be used within the same gradation. (5) Coarse aggregate volume ratio is not more than 0.75 in improving anti-cracking performance for earlier concrete and in 0.70 to 0.75 in increasing impermeability of concrete.
Durability Based Indexes of Coarse Aggregate for Cement Concrete
Indexes of coarse aggregate, such as powder content, sediment percentage, maximum particle size, gradation and coarse aggregate volume ratio, are experimented and analyzed for impermeability, cracking resistance and freezing and thawing. Recommendation value based concrete durability is provided. (1) Coarse aggregate should be washed to keep surface clean during producing. (2) Clay content should not exceed 1%. (3) Coarse aggregate maximum size should not be greater than 26.5mm. 19mm and 26.5mm is the beat generally. (4) Smaller equivalent size should be used within the same gradation. (5) Coarse aggregate volume ratio is not more than 0.75 in improving anti-cracking performance for earlier concrete and in 0.70 to 0.75 in increasing impermeability of concrete.
Durability Based Indexes of Coarse Aggregate for Cement Concrete
Advanced Materials Research ; 250-253 ; 1941-1946
2011-05-17
6 pages
Article (Journal)
Electronic Resource
English
Durability Based Indexes of Coarse Aggregate for Cement Concrete
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