A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The ability of three commercially available concrete Super Water Reducers (SWRs) to improve the asbuilt surfaces of New Jersey barrier curb, their effect on basic concrete properties, including workability, air content, compressive strength, the air-void system in the hardened concrete and durability were evaluated. Study test data represents over one hundred days of concrete production consisting of both precast and cast-in-place (C-I-P) SWR concretes. While the increased workability provided had a positive effect on constructability, particularly on precast elements containing reinforcement steel, C.I.P. asbuilt curb surfaces were only moderately improved. As expected, study admixtures facilitated reductions in w/c ratio. In the case of three C-I-P trial curb installations, the average compresive strength (6255 psi.) represented a 21 percent increase over the strength level attained by the same mix without a SWR admixture.
The ability of three commercially available concrete Super Water Reducers (SWRs) to improve the asbuilt surfaces of New Jersey barrier curb, their effect on basic concrete properties, including workability, air content, compressive strength, the air-void system in the hardened concrete and durability were evaluated. Study test data represents over one hundred days of concrete production consisting of both precast and cast-in-place (C-I-P) SWR concretes. While the increased workability provided had a positive effect on constructability, particularly on precast elements containing reinforcement steel, C.I.P. asbuilt curb surfaces were only moderately improved. As expected, study admixtures facilitated reductions in w/c ratio. In the case of three C-I-P trial curb installations, the average compresive strength (6255 psi.) represented a 21 percent increase over the strength level attained by the same mix without a SWR admixture.
Superplasticized Concrete Curb
R. R. Santoro (author)
1991
68 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Portland cements , Highway construction , Water reducing agents , Specifications , Admixtures , Compressive strength , Concrete construction , Water cement ratio , Concrete durability , Precast concrete , Reinforced concrete , Concrete curbs
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