Underground Construction - April 2018 - 37

EMERGING TECHNOLOGY

Next-generation Technology Achieves
Firsts for SIPP, Rehab Industries

D

Due to their reduced environmental and community impact,
trenchless technologies are increasingly preferred by municipal engineers and project owners
- even required, in some cases
- for rehabilitating and renewing
the aging underground water infrastructure.
One trenchless method,
Sprayed in Place Pipe (SIPP),
involves applying one or more
layers of polymeric material directly to the inside a pipe, in a
single pass or multiple passes, via
a hand-held spray for man-entry
pipe, or a spin-cast-spray device
in small-diameter pipe. It's been
used over the past 20 years to
rehabilitate both gravity and
pressure pipe systems non-structurally.
Specific SIPP uses include
stopping and preventing internal
corrosion, restoring hydraulic capacity, and eliminating
water-quality deterioration
caused by iron or steel corrosion and associated scaling. In
the process, it's been recognized
for providing easier and faster
(including, same-day) return to
service, more versatility and cost
effectiveness, and less environmental and community impact,
compared to other trenchless
methods.
Despite these advantages,
SIPP application has been limited
in pressure pipe rehabilitation,
largely because its unreinforced
composition cannot meet the
"structurally independent" classification.
"As the term implies, this
class of lining-structure is
self-sufficient," said Kent
Weisenberg, CEO and chief
technology officer of SippTech.

"It's designed to stand alone, spanning perforations, cracks and other
discontinuities of the host pipe, and
resisting all external load and internal pressure. Essentially, the host
pipe is irrelevant, serving as a mold,
or form, for the composite lining,
which becomes a replacement, or
'new,' pipe."
Such independence gives the lining-structure a useful life of at least
50 years, and a valuable edge over
other rehabilitation options. In most
cases, structurally independent is the
most cost-effective method.
"Those funding the projects understandably want to get the most
for their money, especially in today's
budget-cutting and -restrictive environment," added Weisenberg.

Top: SippSteel composite lining sample with cross-sectional "slice" in the center displays the flexible, filament-reinforcement
and rigid layers. Bottom: Robotic assembly fuses impregnated filament to the flexible (CCP) material.
UConOnline.com | APRIL 2018

37



http://www.UConOnline.com

Underground Construction - April 2018

Table of Contents for the Digital Edition of Underground Construction - April 2018

Underground Construction - April 2018
Contents
Editor’s Log
Newsline
Washington Watch
Pipeline Projects
Utility & Communications Construction Outlook
CGA Issues Report Examining Advancements, Gaps in Underground Safety Tech
Modern Utility Investigations to Eliminate Some Project Risk
Digging Safely Starts With a Call or Click
Last-Minute Design Change Benefi ts Akron Project
DCA Convention Breaks Attendance, Auction Records
Study Warns Pipe Failures are Cause for Concern
First Look: Elgin Introduces Vertical Cuttings Dryer For HDD fluid Management System
Industry Honors Vic Weston with 2018 MVP Award
UCT Emerging Technology: Next-generation Technology Achieves Firsts for SIPP, Rehab Industries
Product Focus: CIPP Liners
Rehab News
Business
New Products
Equipment Spotlight
Business Cards
Sales Reps
Events
Ad Index
Underground Construction - April 2018 - Underground Construction - April 2018
Underground Construction - April 2018 - IFC
Underground Construction - April 2018 - Contents
Underground Construction - April 2018 - Editor’s Log
Underground Construction - April 2018 - 3
Underground Construction - April 2018 - Newsline
Underground Construction - April 2018 - 5
Underground Construction - April 2018 - 6
Underground Construction - April 2018 - 7
Underground Construction - April 2018 - Washington Watch
Underground Construction - April 2018 - 9
Underground Construction - April 2018 - Pipeline Projects
Underground Construction - April 2018 - 11
Underground Construction - April 2018 - Utility & Communications Construction Outlook
Underground Construction - April 2018 - 13
Underground Construction - April 2018 - 14
Underground Construction - April 2018 - 15
Underground Construction - April 2018 - CGA Issues Report Examining Advancements, Gaps in Underground Safety Tech
Underground Construction - April 2018 - 17
Underground Construction - April 2018 - 18
Underground Construction - April 2018 - 19
Underground Construction - April 2018 - Modern Utility Investigations to Eliminate Some Project Risk
Underground Construction - April 2018 - 21
Underground Construction - April 2018 - 22
Underground Construction - April 2018 - 23
Underground Construction - April 2018 - Digging Safely Starts With a Call or Click
Underground Construction - April 2018 - 25
Underground Construction - April 2018 - 26
Underground Construction - April 2018 - 27
Underground Construction - April 2018 - Last-Minute Design Change Benefi ts Akron Project
Underground Construction - April 2018 - DCA Convention Breaks Attendance, Auction Records
Underground Construction - April 2018 - 30
Underground Construction - April 2018 - 31
Underground Construction - April 2018 - Study Warns Pipe Failures are Cause for Concern
Underground Construction - April 2018 - 33
Underground Construction - April 2018 - First Look: Elgin Introduces Vertical Cuttings Dryer For HDD fluid Management System
Underground Construction - April 2018 - Industry Honors Vic Weston with 2018 MVP Award
Underground Construction - April 2018 - 36
Underground Construction - April 2018 - UCT Emerging Technology: Next-generation Technology Achieves Firsts for SIPP, Rehab Industries
Underground Construction - April 2018 - 38
Underground Construction - April 2018 - 39
Underground Construction - April 2018 - Product Focus: CIPP Liners
Underground Construction - April 2018 - Rehab News
Underground Construction - April 2018 - Business
Underground Construction - April 2018 - 43
Underground Construction - April 2018 - 44
Underground Construction - April 2018 - 45
Underground Construction - April 2018 - New Products
Underground Construction - April 2018 - 47
Underground Construction - April 2018 - 48
Underground Construction - April 2018 - 49
Underground Construction - April 2018 - Equipment Spotlight
Underground Construction - April 2018 - 51
Underground Construction - April 2018 - 52
Underground Construction - April 2018 - Business Cards
Underground Construction - April 2018 - 54
Underground Construction - April 2018 - 55
Underground Construction - April 2018 - Ad Index
Underground Construction - April 2018 - IBC
Underground Construction - April 2018 - BC
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