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Micro Piles |
Pressure Grouting |
Rock Anchors |
Permeation Grouting
Soil Nailing |
Compaction Grouting |
Micropiles |
Injection Grouting |
Chemical Grouting
Our
techniques apply when adding new structures:
especially
rock anchor,
microfine cement,
soil nailing,
micropile
installations for
foundation support.
We
specialize in
slope stabilization,
anchors,
permeation grouting,
foundation repair
and support,
grouting,
soil nails,
rock drilling,
micropile installations, and
sinkholes. We
use a
problem-solving approach geotechnical
architecture of buildings, bridges,
water plants, sewage plants, tunnels,
sinkholes,
caisson,
shoring,
underpinning,
agriculture, and
roads
construction. We
are experienced in these applications:
micro piles,
sinkhole repair,
permeation grouting, pressure
grout,
soil nails,
chemical grouting,
micropiles,
compaction grout, and
rock anchors.
Our specialties are
rock anchor,
acrylamide and
compaction grouting,
mini piles,
sinkhole repair,
micropiles,
acrylamide grouting, and
soil nailing.
We will continue to dedicate ourselves to
excellence,
including
insurance mortgage, in our performance, in our
integrity, and in our relationships with our
customers. We will carefully weigh our
decisions, actions, and results to make sure
that we remain the most trusted name in the
geotechnical contracting industry. Please
visit our website
http://www.rembco.com/.
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Slurry Displacement Piles
JULY
1997
CALTRANS FOUNDATION MANUAL
9-21
Polymer
Polymer drilling slurries have been gaining wide acceptance in the construction industry
over the last 10 years. The main advantage of polymer slurries is that they are easier and
cheaper to dispose of than mineral slurries and do not require slurry plants to physically
clean the slurry. Polymer slurries are grouped into three groups: (1) naturally occurring
polymers, (2) semi-synthetic polymers, and (3) synthetic polymers. The synthetic polymers
currently consist of two types: (1) emulsified Partially Hydrolyzed Polyacrylamide,
Polyacrylate (PHPA) polymers, and (2) dry vinyl polymers.
Research has been performed at the University of Houston, by the various polymer slurry
manufacturers, and by Caltrans on the effect of polymer slurries on rebar bond, pile skin
friction, and concrete contamination. Although incomplete, this research has resulted in
the approval of some polymer slurries for use on Caltrans contracts. As of 1994, the contract
specifications permit the use of two brands of synthetic polymer slurries. These are Super
Mud, manufactured by PDS Company and SlurryPro CDP™, manufactured by KB Tech-
nologies, LTD.
Super Mud is an emulsified PHPA polymer type of synthetic polymer slurry. Emulsified
PHPA polymers rely on the positive effective stress principle because they do not control
filtration in open ground formations and will not form a filter cake on the sides of the
drilled hole. However, the polymer chains in the drilling slurry do enter the ground forma-
tion and bond to the individual soil grains. This helps to stabilize the sides of the drilled
hole. Continuous addition of drilling slurry may be required in order to stabilize the level of
the drilling slurry in the drilled hole. Because a filter cake is not formed, maintaining the
level of the drilling slurry well above the groundwater level is essential. A liquid form of
Super Mud is currently approved for use on Caltrans projects. No other form is approved.