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#Building settlement marker installation guide series

Clean and finish area.Īfter monument has been poured in place, allow to set for 5-10 minutes and then insert marker into proper position. Repeat process until all voids are filled. Insert marker into hole and determine how much additional grouting material must be used. Put a small amount of grouting material into hole (we recommend DRYLOCK™ brand anchoring cement, which is non-shrinking and sets in 5-20 minutes). Continue enlarging area as required to provide for a flush-mounted installation. Reinsert marker into hole to verify proper fit. Using a chisel, enlarge hole to marked outline. Using chalk, felt-tip marker, or other writing instrument, outline outside edge of the marker.

#Building settlement marker installation guide series

Clean debris from hole and epoxy or grout marker in place.Įxisting Concrete/Rock Without Using Berntsen Countersink Drill Bit:Ĭhisel or drill a 3/4 to 1 inch (19mm to 25mm) diameter hole – (3 ½ inches deep for C or R series Markers 2 ¼ inches deep for the model cd2 marker series).Ĭlean out hole and surrounding surface area (T1854 Blow-out Bulb). If installing the RT series markers, use a 1 ¼” bit. Drill the countersink deep enough to accommodate the thickness of the marker top.Īfter countersink is complete, re-drill stem hole with 1” bit. Start drilling the hole, being sure to keep your drill straight and not at an angle. Thread countersink bit to small pilot drill then thread on the SDS-plus, SDS-Max or Spline drill shank.

RSAMG80/RSAM80 Metal Adapter w/ Smart Angle TargetĮxisting Concrete/Rock Using Berntsen Countersink Drill Bit:Īssemble the three-piece drill bit.

The incremental extensometer survey is taken with the T-REX system.

The guide tube is an ABS inclinometer column with reference magnetic rings installed at 1 meter spacing to each other.

Accessories for Concrete Survey Markers The T-REX incremental extensometer able to detect meter by meter ground settlement with high accuracy.

PERMAMARK Plastic Survey Caps for Rebar and Pipe.

MORASSE Plastic Survey Monument Markers.

Carsonite Utility Posts | Carsonite Utility Markers.

Accessories for Concrete Utility Markers.

Automation allows frequent measurements and provides graphs and reports just minutes after each measurement cycle.

Elevations of the prisms are then measured automatically using an AMTS system. Each set of elevation measurements requires a visit by the surveyor, who then prepares and delivers a report.Īutomated: The top of each riser is fitted with a prism. Traditional: Settlement plates are traditionally monitored by a surveyor, who measures the elevation of the top of each riser. When fill approaches the top of the riser, an extension is added and step 3 is repeated.Paint, flags, cones, or fences are used to make the riser visible to equipment operators. Fill is hand-compacted around the riser to the specified level of the lift.Pressure Gauge, T-assembly and a Vibrating Wire sensor (optional) with. Settlement will be calculated by comparing the subsequent measurements to the initial measurement. instruments including high technology to meet nation building objectives. The initial elevation of each plate and riser is noted carefully.

Settlement plates are installed at specified locations.

Extensions to the riser, required as the height of the surcharge increases.

Steel riser pipe fixed to the base plate.

Monitoring settlement during construction of embankments.

This allows you to build a settlement profile.

Monitoring consolidation of ground treated with wick drains and surcharges. Beams with tilt sensors (tiltmeters) can be installed end-to-end along a wall to form a continuous string.