Keywords : Slumpflow
journal of kerbala university,
Volume 8, Issue 4, Pages 16-25
This research aims to evaluate of using the glass fiber on the properties of fresh and hardened self compacting concrete (SCC).The work involves four mixes , the mix proportion of these mixes is(1:1.75:2),and water cement ratio is(0.4), superplasticizer of ( 5 ) % of cement content, limestone powder of (100Kg /m3) ,and glass fiber (0,1,3,5)% of mixes volume respectively .
Slumpflow, L-Box and V-funnel tests are using to determine the workability of all mixes, the values of slump flow are (710,680,655,615)mm, the values of t50cm are (2,3,3,5) second, the blocking ratio (H2/H1) values are (0.93, 0.87, 0.86, 0.82) and the flow time through the V-funnel are (6, 9, 11, 12) seconds respectively, the mechanical properties studied in this work are compressive strength with average value of six spacements are (28.6,29.2,29.8,31.5) , (47.3,48.7,51.3,54.7)N/mm2 of (7,28) day ages respectively , and splitting tensile strength with average values of six spacements are (4.1, 4.3,4.6,5.1) , (5.2,5.8,6.1,6.5)N/mm2 of (28,56) days ages respectively .
Flexural strength (Modulus Of Rupture)(MOR) was tested with average values of three spacements are (4.1,4.3,4.6,5.1) , (5.2,5.8,6.1,6.5)N/mm2 of (28,56) day ages, for glass fiber ratio of (0,1,3,5)% respectively .