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Testing
Regarding the Application of Hardwire to Existing Concrete Structures
University
of Missouri - Rolla & University of Naples, Italy
Complete
Technical Paper This
27 page paper introduces steel reinforced polymer (SRP) and steel reinforced
grout (SRG) composites that are considered for application in civil engineering
for bridge and concrete buildings upgrade.
Testing
Overview 3 page abstract (.pdf) of above.
Video 1
- This 43 second clip details testing in Italy of Hardwire material
reinforcing a concrete beam. The Hardwire is adhered to the beam solely
with Sika 121 mix.
Video
2 - This 15 second clip details the same as above except concrete
nails were used every 20cm in addition to the Sika 121 to adhere the Hardwire
to the beam.
Video
3 - This 34 second clip gives a closeup of the failures on the
above two tests. Note that both tests were performed on the same beam
in different sections.
Hardwire
Coupon Testing at the United States Navy
GYB3S
Video This
1:30 second clip details the flex testing of the Hardwire 3S compression
optimized cord structure in a 23wpi tape form.
GYB3X2
Video This
2:34 second clip details the flex testing of the Hardwire 3X2 cord structure
in a 23wpi tape form.
Results
This .pdf formated table details the results of the testing in graphical
form.
Flexural
Strengthening of Reinforced Concrete Beams
Queens
University, Canada
Complete
Technical Paper
This paper reports the test results of an experimental investigation carried
out on reinforced concrete beams strengthened in flexure using steel reinforced
polymer (SRP). SRP is an emerging new composite that offers mechanical
properties comparable to those of CFRP at a reduced cost. The study investigates
the effect of reinforcement ratios of SRP, in terms of the width of the
sheet attached to the tension face of the beam as well as the effect of
using SRP U-wraps for the anchorage of longitudinal SRP sheets. This study
is also focused on examining the shear stress concentrations near the
cut-off points of SRP, as well as evaluating the contribution of SRP U-wraps
to flexural stiffness through diagonal crack control and slip control
of the longitudinal SRP sheet.
Hardwire®
Reinforced Wood Glulam Beams
University
of Maine
Complete
Technical Paper
Results from the testing of five Hardwire® reinforced glulam beams
following an ASTM D198, a four-point flexure test.
Hardwire®
Reinforced Double-T Prestressed Concrete Beams
University
of Missouri - Rolla
Complete
Technical Paper
This
paper reports on the test results to failure of three beams: a control
specimen, a beam strengthened with one ply of SRP and a third beam strengthened
with two plies of SRP anchored at both ends with SRP Uwraps. Results showed
that SRP can significantly improve both flexural capacity and enhance
pseudo-ductility.
Cracking
Behavior Of Reinforced Concrete Beams
University
of Naples, Italy
Complete
Technical Paper
This
paper presents experimental results pertaining to the cracking behavior
concrete beams externally reinforced with composite systems. The reinforcements
tested are CFRP and Hardwire® systems.
Blast
Resistant Capacity of Reinforced Concrete Slabs
University
of Missouri - Rolla
Complete
Technical Paper This
research program was initiated to examine the feasibility of assessing
the blast-resistant capacity of reinforced concrete (RC) slabs using the
displacement based design (DBD) method. In order to achieve this objective,
five RC slabs were tested under real blast loads in the out-of-plane direction.
One of the slabs was used as the control unit to establish a baseline
for comparison in terms of performance for the other four slabs, which
were strengthened with fiber reinforced polymer (FRP) and steel fiber
reinforced polymer (SRP). The explosive charge weight and stand-off distance
required to impose a given damage level were predicted by the DBD method.
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