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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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JULY
1997
Slurry Displacement Piles
9-46
Otherwise, additional cleaning of the mineral slurry and removal of settled materials from
the bottom of the drilled hole may be required.
The reason for testing mineral slurries at different levels is to make sure the mineral
slurries are well mixed and have consistent physical properties throughout the length of the
drilled hole. The mineral slurry’s physical properties should be the same at both locations.
This indicates that the mineral slurry is completely mixed and that any sand or particles
contained are in suspension.
For polymer slurries, sampling for testing shall be conducted as necessary to control the
physical properties of the polymer slurry. Samples shall be taken at the midheight and at
the bottom of the drilled hole. Samples for testing shall be taken as necessary to verify the
properties of the polymer slurry during the drilling operation. Once the drilling operation
has been completed, samples for testing shall be taken. When the polymer slurry’s physical
properties are consistent at the two sampling locations and meet the requirements of the
contract specifications, the bottom of the drilled hole can be cleaned.
Polymer slurries are cleaned by allowing for an unagitated settlement period, usually of
about 30 minutes in length. Because polymer slurries in general will not suspend sands, the
sands will settle to the bottom of the drilled hole during the settlement period.
Once the bottom of the drilled hole has been initially cleaned, further settlement periods
may be required. Usually, the initial cleaning will stir up the settled materials at the bottom
of the drilled hole, thus requiring the polymer slurry to be recleaned so it meets the require-
ments of the contract specifications. Several iterations may be required before both the
polymer slurry and the bottom of the drilled hole are clean. To verify the cleanliness of the
polymer slurry, the contract specifications require additional samples to be taken for testing.
Samples shall be taken at the midheight and at the bottom of the drilled hole. Once the test
samples show the polymer slurry’s properties to be within the specification parameters and
there is no settled material on the bottom of the drilled hole, the last cleaning of the bottom
of the drilled hole can be considered to be the final cleaning. At this point, the rebar cage
can be placed. The contract specifications require that samples for testing be taken just
prior to concrete placement to verify the properties of the polymer slurry. Samples shall be
taken at the midheight and at the bottom of the drilled hole. If the test samples have
consistent test properties within the specification parameters, concrete may be placed.
Otherwise, additional settlement periods and removal of settled materials from the bottom
of the drilled hole may be required.