On the Strength and Other Characteristics of the Wet Screened Concrete. (1)

摘要

Generally for concrete structures the strengths of concrete are discussed by the large size test pieces. For instance the compressive strength is determined by testing cylinders 15cm. in diameter and 30 cm. in height. The present tests were made with two distinct objects: to study the general behavior of the wet screened concrete after the screening of the fresh concrete， in which case the coarse aggregates being approximately limited in size less than 1/4 in diameter of test pieces : to study the strengths of the wet screened concrete by the use of small size test pieces，and especially the difference of the strengths caused by the sizes of the test pieces and other characteristics affected by screening the fresh concrete.