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Geotechnical News • September 2013
37
THE GROUT LINE
covering rock investigation and
characterization methods. Different
philosophies for rock grouting were
covered by Trent Dreese (US pratice),
Trevor Carter (aperture controlled
grouting) and myself (GIN method).
The second day also included a pre-
sentation/demonstration by Brian Iske
on chemical grouts.
On the third day, case histories of Dam
Foundation grouting were presented
by Trent Dreese, and George Burke
delivered a detailed presentation on jet
grouting. The (always much antici-
pated) field demonstration took place
Wednesday afternoon, and it was a
fantastic show! The field demonstra-
tion was organized by Bill Warfield
and was hosted at the facilities of Hank
Baski (Baski, Inc.) I would like to give
recognition here and to thank publi-
cally the companies that supported this
very “unique” demonstration:
• Aerix Industries,Golden, Colorado
(foaming agents)
• Atlas Copco CMT – Ground Engi-
neering Products Roseville, Cali-
fornia (overall organization, grout
plant and data recording system)
• Avanti International, Webster,
Texas (chemical grouting prod-
ucts)
• Bandimere Grouting Consulting
Services, Denver, CO. (compac-
tion grouting test with drilling,
grouting and real time monitoring
of the grouting parameters)
• BASF Beachwood, Ohio (colloidal
silica, bleed tests, basic grout tests,
admixtures)
• Baski, Inc. Denver, Colorado
(inflatable packers)
• ChemGrout, Inc.La Grange Park,
Illinois (grout plant, sand column
experiments)
• Con-Tech Systems Ltd. British
Columbia, Canada (data recording
system)
• De Neef Construction Chemicals/
Grace, Inc. Waller, Texas (polyure-
thane injection, microfine cement)
• Graz University of Technology,
Austria (sand column experiments)
• Hayward Baker, Inc. Broomfield,
Colorado (annular grouting, sand
column experiments, anchor grout-
ing)
• NCFI Polyurethanes Fort Worth,
TX (chemical grouting for slab
lifting)
• Rio Grande Co., Denver, Colorado
(catered BBQ, provided materials
for sand column experiments)
• RST Instruments Ltd., British
Columbia, Canada (data recording
system, low mobility grouting)
• Surecrete, Inc. Seattle, Washington
(with their partner Nittetsu from
Japan, showing the new HNP-
1500 nano cement and microfine
cements)
• US Grout, Malad City, Idaho
(microfine cement)
• Williams Form Engineering,
Golden, Colorado (anchor grouting
and testing)
Thanks to all of you for a very inter-
esting and entertaining afternoon!
Presentations recommenced on Thurs-
day with a series of excellent lectures
by Donald Bruce. Topics included:
evolution of drilling, grouting of rock
anchors and micropiles, cutoff walls,
composite walls, and crisis manage-
ment strategies. The day was rounded
out by presentations on foaming
agents (Rich Palladino), grouting
equipment (Bill Warfield), and a case
history of jet grouting for the Zeballos
Lake IPP (Paolo Gazzarrini).
The final day began with a presen-
tation on grouting instrumentation
(“avec mon ami”, Pierre Choquet),
followed by a series of lectures deal-
ing with grouting in underground
construction (Scott Kieffer, Hans-
Olaf Hognestad, Scott Wimmer, and
Niels Kofoed). Slab jacking was then
covered by Joe Harris, and “dulcis in
fundo” Jim Warner and Sam Bandi-
mere concluded the course.
What I found really interesting is that
while it was my 4th consecutive year
at the course, I always find something
new to learn and to share with my
grouting colleagues!
In closing, I wish to extent thanks to
Scott Kieffer of the Graz University of
Technology in Austria, for his orga-
nization, leadership, and dedication
to this unique and valuable course. It
was an intensive but productive 5 day
course for everybody interested in
grouting!
I hope to see you next year in Golden!