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A COMPARISON STUDY OF INITIAL SURFACE ABSORPTION PROPERTY FOR CONVENTIONAL AND SELF COMPACTING CONCRETES | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 2, 2011, Pages 153-162 | ||
| Authors | ||
| Jabbar abbas Jabbar; Mohammad kareem Abid | ||
| Abstract | ||
| In this study ,an experimental investigation is carried out to compare the initial surface absorption (ISA ) as well as compressive strength between self compacting concrete ( S.C.C) and ordinary concrete . Two series of mixes were cast , one belonged to ordinary concrete while the second was for ( S.C.C ). Additives included in these mixes were limestone dust and Super plasticizer of retarding effect called ( Glenium 51 ) with a ratio by weight of cement of ( 2 % ).The tests performed on the fresh state of both types of concrete were , slump , slump flow , T 50 cm , U – box flow , flow time of V funnel, as well as , flow time of V funnel at T = 5 sec . In the hardened state , initial surface absorption , and compressive strength were measured for both types of concrete.Results indicated Slump flow of S.C.C was about ( 8 ) times more than that of conventional concrete , while ISA of S.C.C was about ( 5 ) times less than that of conventional concrete . S.C.C . Compressive strength of S.C.C was about (25 % ) higher than that of conventional at age ( 28 ) days , but at age of (14) days , both types of concrete showed same compressive strength . | ||
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