Page 9 - Open-Access-June-2020

TECHNICAL PAPER

Table 2: Shear Behavior of ECC Elements

type of sl. Cross-seCtion span shear-span details of
speCimen no. referenCes (b×d) (mm) (l)(mm) ratio (a/d) * reinforCement oBjeCtive oBservation
*
1. Li et al. [45] 150 × 210 540 - Wire reinforcement To investigate the 0.1 mm crack width of
-0.75% structural response of the distributed fine crack
ECC shear beam. makes ECC beam more
ductile.
2. Li and Wang [12] 114 x 152 1017&1600 2.62 & 4.88 i) steel-1.47% The shear behavior of GFRP reinforced ECC
ii) GFRP-1.82% & GFRP reinforced ECC beams exhibits enhanced
2.73% beams are investigated. load carrying capacity
and ultimate deflection
of 46% and 56%,
respectively.
3. Shimizu et al. [37] 180 x 280 2480 1.50 0%, 0.15% & 0.30% To study the behavior of ECC beam with 0.30%
ECC and RECC beams steel reinforcement and
using the bending shear fiber volume of 2.0%
test. shows enhanced load
carrying capacity when
compare to other beams.
4. Gideon et al. [38] 320 × 140 - - No reinforcement To investigate the shear ECC significantly
behavior of ECC. improves the structural
durability and reliability
upon diagonal tension
or shear.
5. Kanakubo and 180 x 280 840&700 1.50 & 1.25 0%, 0.15%, 0.30%, To investigate the The bending and shear
Shimizu [36] 0.60%, 0.89% & structural applications cracks were observed at
1.20% and quality assurance for 0.0025 radians.
RECC beam.
6. Kanakubo et al. [26] i) 30 × 50 i) 125 1.25 0.89% & 1.20% The shear behavior Medium-sized ECC
ii) 64 × 100 ii) 250 of plain concrete and specimen showed higher
iii) 180 × 280 iii) 700 ECC in accordance shear strength in case of
with the size effect was no stirrups.
investigated.
7. Kanakubo et al. [46] 180 × 280 700 & 840 1.5 & 1.25 0%, 0.15%, 0.30%, To investigate the shear Shear strength on crack
0.60%, 0.89% & transmission on crack surface is about half of
Beams 1.20% surface by single plane tensile strength.
shear test.
8. Zhang et al. [40] 50 × 200 900&1200 2 & 3 No stirrups To evaluate the behavior Enhanced load carrying
of ECC beams with capacity and crack
different shear-span ratio. pattern was observed for
a/d=3 than a/d=2.
9. Alyousif et al. [41] 125 × 250 1130, 1560, 1, 2&3 No stirrups To investigate the shear For the shear-span
1990, behavior of RECC beams ratio of 1, 2 & 3 the
1080, 1460 with various shear-span load carrying capacity
&1840 ratio. increases 30%, 23% &
108% respectively.
10. Paegle and 125 × 250 1100 1.4 0%, 0.23%, 0.45% To investigate the i) For same amount of
Fischer [34] & 0.9% shear crack mechanism shear reinforcement, the
of RECC beams. In shear capacity of RECC
addition, the results were beams increased 34%
compared with the results than RC beam.
of the RC beams. ii)The shear deformation
and crack formation of
RECC beams was 1.25
and 3 to 5 times higher
than RC beams.
11. Meng et al. [22] 100 × 200 2200 - 0.14% To investigate the The shear resistance of
shear response of ECC RECC beams without
matrix and transverse stirrups were 1.5 times
reinforcement of RECC more than RC beams
beams. without stirrups.
12. Gu et al. [35] 210 × 300 1700, 1900 650, 750 &550 BFRP – 0%, 0.24%, To investigate the BFRP reinforced ECC
& 2100 0.32% & 0.48% shear behavior of FRP- beams with slight
reinforced ECC beams reinforcement ratio
and compared with FRP of 0.24% significantly
reinforced concrete enhances the shear
beams. performance compared
to BFRP reinforced
normal beams.

10 The IndIan ConCreTe Journal | June 2020