Underground Construction - January 2019 - 46

REHABTECHNOLOGY

Avanti Initiates 50-Year Warranty for Grout
Jeff Griffin | Senior Editor

Avanti International has announced a 50-year product warranty on the company's AV-100
chemical grout.
AV-100 is an ultra-low viscosity, chemically reactive gel
primarily used to seal municipal
wastewater collection systems
from infiltrations.
"For 40 years, AV-100 has
been the go-to resin material for
sealing mainlines, service laterals,
lateral connections and manholes," said Don Rigby, Avanti
vice president of marketing and
education. "Avanti always has
operated on premise: 'If there's a
problem with the product, we'll
replace it.'"
How many times has that happened? "Zero," answers Avanti
President Britt Babcock.
Therefore, Avanti has committed to warrant the AV-100 acrylamide grout for 50 years against
groundwater infiltration due to
product failure. No other comparable grout products have such a
warranty, said Rigby.
With the same viscosity as
water, AV-100 can permeate anywhere water can travel and cures
within a controllable time frame
anywhere from five seconds to
plus-or-minus 10 hours. Once
cured, it creates an effective,
long-lasting water barrier and
provides superb soil stabilization.
For background on the decision to offer the 50-year warranty, Rigby cited new, independent
research that even in the most
arid environments, soils retain
100 percent relative humidity
(RH) at depths from one to f14
feet. Further, the third-party
tests showed that in the presence
of high RH, acrylamide grout
(AV-100) will not shrink from
desiccation.

JANUARY 2019 | UConOnline.com

For background on the decision to offer the
50-year warranty, Rigby cited new, independent research that even in the most arid environments, soils retain 100 percent relative
humidity (RH) at depths from one to f14 feet.
"According to U.S. Department
of Energy," continued Rigby, "a
20 percent acrylamide grout in
soil has a 362-year half-life. At 10
to 1 percent concentration, AV100 acrylamide grout can extrapolate a design/service life in the
soil greater than 150 years."
Based on thermodynamic
analysis, field testing and laboratory testing, AV-100 chemical
grout installed below the shallow
surface layer will not shrink from
desiccation, the test concluded.

Growth
In 1978, Avanti launched one
product, acrylamide chemical
grout, with a goal to serve the
municipal market.
"Today," Rigby said, "Avanti offers more than 20 injection
grouts to multiple markets including industrial, commercial
and geotechnical. No other com-

pany supplies acrylamide, acrylic,
acrylate, hydrophilic and hydrophobic grouts, ultra-fine cement
and the technical expertise that
comes with being the most experienced grout supplier in the U.S."
Rigby emphasizes the single
best impact on the life of grout is
the quality of installation.
"Avanti and Allied Technology
Partners," he said, "are doing a
great deal to advance the quality
of execution. Municipal grouting is a multi-vendor solution.
It requires grout/CCTV trucks,
remote packers for mainline and
service laterals, and grouting materials. Together, those of us in
the industry teach to the NASSCO/ICGA (Infiltration Control
Grouting Association) standards
with multiple levels of course
work available.
" Level 100 is a no-cost, online
course available at www.mu-

nicipalgrouting.com. Level 200
course is a two-day Municipal
Grout School conducted regionally six times each year (dates and
locations are available at www.
avantigrout.com)."
"Beginning in April, a new Level 300 course covering advanced
chemistry and best practices
will earn graduates a certified
technician credential. For quality
execution, in 2019 engineers and
municipal owners will begin specifying this level of knowledge on
each truck and requiring a service
warranty from the contractor.
"Execution is everything, and
together we are raising the bar."
Avanti offers on-site field
training about how-to techniques
for achieving desired results. Also
available are web-based tutorials
and demonstrations, videos, and
animations providing step-bystep instructions about how to
inject Avanti products safely and
efficiently.
FOR MORE INFORMATION:
Avanti International,
(281) 486 5600 or (800) 877 2570,
avantigrout.com

http://www.municipalgrouting.com http://www.municipalgrouting.com http://www.avantigrout.com http://www.UConOnline.com

Underground Construction - January 2019

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