Underground Construction - October 2017 - 26

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LMK Technologies Continues to Innovate in the
Trenchless Rehabilitation of Main-to-Lateral Connections

Located in Ottawa, Illinois, LMK Technologies has been a leader in trenchless
Cured-In-Place-Pipe (CIPP) lining since 1993. LMK is recognized by many municipalities and engineering firms as the innovative leader for the trenchless
renewal of sewer laterals, manholes and mainlines. LMK has over 100 issued
patents and many pending. Overall, LMK has continuously innovated solutions towards trenchless rehabilitation of main-to-lateral connections year-inand-year-out while also striving to find new ways to change the industry.
LMK's Sectional
Connection Liner
process renews pipes
from 8 to 12 inches
in diameter and in
continuous lengths up
to 6 ft. while simultaneously renewing
the connection and
the lateral service
pipe for up to 8 ft. The
liner can be inverted
anywhere in the pipe with no trimming or cutting. The result is a structural,
root proof, watertight liner. Gasket sealing technology is used at the terminating points of the liner by embedding LMK patented Insignia™ Hydrophilic
O-Rings between the liner and the host pipe to ensure a watertight seal.
LMK's Man Entry Lapel Liner was announced in 2015 as a large diameter
liner using patent pending technology that allows for a watertight connection
to be made to either the CIPP lining or to the original host pipe. This is a mechanically anchored liner that also includes the use of molded gaskets made
of hydrophilic rubber and a metal brim flange. The liner system consists of a
fabric tube of the desired length with a factory attached brim and a
thermoset CIPP resin system. The mainline brim and lateral tubes are vacuum
impregnated with the resin, the hydrophilic gaskets are installed, and then
the liner is mechanically placed inside the pipes via man entry into the mainline. The connection stays in place with the stainless steel compression ring
that is fastened to the main pipe to create a one-piece lateral lining and sealed
connection.
LMK's T-Liner® is a one-piece
main-to-lateral connection
system with Insignia™ hydrophilic gasket sealing technology fully compliant with ASTM
F2561-16. The full circle CIPP
mainline portion creates a 50
year structural repair while the
lateral portion simultaneously
renews the lateral up to 150
feet. T-Liner 3.0 uses Insignia
O-ring gaskets at the lateral
termination and a connection
hat, both made of hydrophilic
rubber at the main-to-lateral
connection, creating a longterm watertight seal to match the structural life. This system can be installed
with either polyester or epoxy resin in lined or unlined mainlines.
For shorter lateral shots, LMK's T-Liner Shorty and Stubby are available.
Shorty is ASTM F2561 compliant and extends up the lateral a length of 10
feet. Stubby renews the connection and 6 inches of the lateral. Both of these
shorter T-Liner systems utilize the Insignia junction hat at the connection,
ensuring a watertight renewed system.

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Installed from the mainline are T-Liner, Shorty and Stubby and are positioned
at the lateral using the latest in positioning technology including robotics and
cameras. The inversion and steam or ambient cure process ensures a consistent quality installed liner that is compliant with ASTM F2561 and F1216.
All of LMK main-to-lateral connections systems are installed by licensed
trained independent contractors who make a significant investment to ensure
quality installations. LMK's installers are required to complete an extensive
and rigorous training course at LMK's state of the art facility as well as onthe-field training.
For manhole to manhole CIPP rehabilitation, the LMK Insignia™ End Seal
sleeve is available in diameters from 6 inches and up. When used in conjunction with mainline CIPP lining, the Insignia gasket forms a watertight seal in
the annular space between the liner and the host pipe after 24 to 36 hours of
being exposed to water. An annular space always exists between the host pipe
and the liner because CIPP resins do not bond to the host pipe. Without the
compression gasket, water will track behind the liner and re-enter the collection system. The Insignia End Seal is available to all contractors installing
manhole to manhole CIPP.
For lining lateral pipes
only, LMK's Performance Liner System is
installed from one access
point using custom fabricated, highly engineered
equipment. LMK's lateral
liner repairs and rehabilitates broken and leaking
pipes with diameters of
3 to 8 inches. No digging
is required to line 4 inch
pipes up to 130 feet or 6
inch pipes up to 100 feet. Performance Liner Lining System is NSF/ANSI 14
certified and meets ASTM F1216.
If an outside cleanout is not available, LMK's VAC-A-TEE® can be easily
installed by vacuum or hydro excavation of a small diameter hole. Outside
cleanouts ensure proper resin wet-out, allow for steam venting and minimize
disruption to the homeowner. VAC-A-TEE meets the ASTM F3097-15 Standard, a practice for installation of an outside sewer service cleanout through a
minimally invasive small bore created by a vacuum excavator.
LMK offers truly engineered solutions that are backed by a 10 year CIPP
limited warranty, world class research and development, technical sales and
service teams.
LMK is a major supporter of the underground
construction and trenchless technology industry
and participates in many
major educational and
business events throughout the United States
and Canada. A member
of NASSCO, NASTT,
WEF and numerous other organizations, LMK
gladly opens its Interactive Technical Education Center (ITEC) for training
sessions and demonstrations.
For more information about LMK's industry leading solutions please visit
www.lmktechnologies.com or call 815-640-9302.
Underground Construction October 2017

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Underground Construction - October 2017

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