Underground Construction - August 2018 - 35

REHABTECHNOLOGY
NASSCO Awards TTC Project to Measure Styrene, Compounds in CIPP
After a careful and thorough review of multiple responses to a request for proposals regarding cured-in-place pipe (CIPP), NASSCO
accepted the proposal from the Trenchless Technology Center at
Louisiana Tech University. The project will include a comprehensive
evaluation of air emissions from steam CIPP installations and potential impacts on workers and surrounding communities. TTC will
partner with the U.S. Army Corps of Engineers' Engineer Research
Development Center (ERDC) on this important study.
The project is Phase 2 of a larger study, and calls for measurement of styrene and other organic compounds at six CIPP installation sites, representing different pipe diameters (8 inches and larger)
and lengths to capture variation in emissions. Measurements will be
conducted before, during and after curing at the termination manhole, as well as various locations in the surrounding outside area and
inside nearby buildings. Worker exposure will also be measured via
personal exposure monitors. Dispersion modeling will be conducted
to estimate compound concentrations at many locations for a wide
variety of meteorological conditions. Measured and modeled concentrations will be compared to appropriate health-based action levels to
determine if any potential health risks exist for workers or citizens in
the surrounding communities.
Phase 1 was a four-month study focused on the review of published literature pertaining to chemical emissions during CIPP installations using styrene-based resins. That study, completed on April 6
by researchers at the University of Texas at Arlington's (UTA) Center
for Underground Infrastructure Research and Education (CUIRE),
and the Institute for Underground Infrastructure (IKT) in Germany,
found that existing studies do not adequately capture worker exposures or levels in the surrounding areas to which workers or citizens
may be exposed. The team further determined that spatial variation

of concentrations and variations in concentrations with different
meteorological conditions are not well-determined.

Leaders
In late 2017, NASSCO formed a workgroup consisting of industry
leaders to develop the requests for proposals for both Phases 1 and 2,
and to select from the multiple responses to ensure the highest levels
of integrity.
"As the NASTT representative on the workgroup for the CIPP
Emission Testing project, I am delighted with the selection of TTC
as the most meritorious candidate for this important research," said
Mike Willmets, NASTT executive director. "For nearly 30 years, TTC
has contributed novel and significant work to further the advancement of the trenchless industry. This will be an exciting assignment
with definitive results and will undoubtedly have a far-reaching impact on worksite safety."
NASSCO Executive Director Sheila Joy also commented on the
critical need to partner with other industry organizations for important initiatives such as this.
"One of my top priorities is to join forces with associations and
organizations such as NASTT, WRc, WEF, NUCA and others so that
we may have a unified voice and serve our industry to the best of
our ability.," she said. "TTC's proposal to partner with the U.S. Army
Corps of Engineers demonstrates their understanding of this concept. We all share the same goal when it comes to the safety of our
workers and communities, and this study is a perfect example of how
unification will reveal the information we need to make smarter decisions for our industry as a whole."
FOR MORE INFORMATION:
NASSCO, (410) 442-7473, nassco.org

PRODUCTS
Perma-Liner Launches High-Performance
Vinyl Ester for CIPP Repairs
Perma-Liner Industries, LLC, a leading manufacturer and supplier of
trenchless pipeline rehabilitation equipment and materials for North
America, introduced a new, high-performance epoxy vinyl ester resin. This
vinyl ester product is Bisphenol-A Epoxy-based resin dissolved in styrene.
The new resin provides the corrosion resistance, durability and
toughness that is required within the cured-in-place-pipe (CIPP)
industry. When it comes to certain specific applications where fluid
temperature is relatively higher, the resin has an advantage over epoxy.
It also meets the demanding needs of high-pressure and/or corrosive
environments, as well as other applications.
"We are excited to introduce our newest resin into our already broad
spectrum of products," said Jerry D'Hulster, president of Perma-Liner.
"Vinyl ester offers an excellent balance of corrosion and performance
properties and will allow Perma-Liner to expand to new markets with
its unique capabilities."
FOR MORE INFORMATION
Perma-Liner Industries LLC, (866) 336-2568, perma-liner.com

HammerHead Unveils
New Purpose-Built
CIPP trailer
HammerHead Trenchless, a
Charles Machine Works company,
introduced a new, purpose-built
trailer for cured-in-place-pipe (CIPP) applications that gives installers
a uniquely versatile and efficient workstation suited to almost any job
they encounter.
The 20-foot-long trailer's modular design not only maintains an
efficient workspace during installations, but keeps all components
secure and at-the-ready while traveling. On more restrictive job sites,
all equipment in the LT-20PRO can be unmounted for easy relocation.
Each trailer can be outfitted with the desired inversion drum size,
curing equipment, reinstatement and drain cleaning tools to meet each
customer's individual needs. LT-20PRO CIPP trailers are also available
ready-made for immediate sale and delivery.
FOR MORE INFORMATION
HammerHead Trenchless, (920) 648-4848, hammerheadtrenchless.com
UConOnline.com | AUGUST 2018

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Underground Construction - August 2018

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