Special Equipment

FloorPro for Floor Flatness and Level Testing

Cutting Edge Technology – PEZONELLA ASSOCIATES, INC. is the only firm in Northern Nevada with FloorPro – State-of-the-Art equipment for measuring concrete floors for flatness and level.

Using FloorPro Pezonella Associates, Inc. is able to:

  • Provide immediate flatness results to help contractors produce flatter  floors. Effects of changes made in the installation procedures can be evaluated without waiting for laboratory reports.
  • Immediately check for compliance with ACI and ASTM  flatness measuring requirements. The onboard micro-processor calculates and immediately displays the F-number,  the Waviness Index, or Auto   Straightedge on the LCD  display.
  • Work with all three random traffic flatness specifications. Whether specs call for F-numbers, Auto 10-foot,  Straightedge, or Waviness Index, the fully automatic  FloorPro gives instantaneous results when it reaches the end  of a survey line.

Because FloorPro is versatile it can be used on new or existing floors and elevated or on-grade smooth trowelled surfaces.

Geoprobe 5400

One of the exciting things that Pezonella Associates has to offer is our Geoprobe. A Geoprobe is a hydraulically-powered, direct push machine that enables us to use static force as well as dynamic percussion force to drive steel boring rods at a variety of depths in order to assist in sub-surface sampling.  Geoprobes offer several advantages over conventional drilling for environmental sampling.  In utilizing this machine, it allows us to take undisturbed soil samples for vertical profiling capabilities in order to generate three-dimensional profiles of a site.  Direct push drilling is capable of collecting depth-discrete groundwater samples to detect contaminated layers, and soil samples that are recovered in plastic liners that may contain volatile organics that are not exposed to the atmosphere before dispatch to the laboratory.  And because there is no water or drilling muds present like there would be with conventional drilling, it allows for a cleaner drill.  This also factors in with dual-tube sampling, which allows for a smaller volume of drill spoil required for safe disposal.  The direct push boring provides data at a faster rate when required and with the Geoprobe you have access to confined areas.  The Large Bore and Macro-Core soil samplers operated with the Geoprobe percussion probing machine are one of the most efficient means of collecting a discrete soil sample at depth.  Since this is a single-tubing system, the use and advancement of hollow stem augers to successfully collect a sample is not required.  This minimizes the time and effort required to collect a discrete interval sample and eliminates generation of drill cuttings.

Advantages

  • Allows us to take undisturbed soil samples for vertical profiling capabilities in order to generate three-dimensional profiles of a site.
  • Direct push drilling is capable of collecting depth discrete groundwater samples to detect contaminated layers, and soil samples that are recovered in plastic liners that may contain volatile organics are not exposed to the atmosphere before being dispatched to the laboratory.
  • Dual-tube sampling allows for a smaller volume of drill spoil required for safe disposal.
  • Direct push boring provides data at a faster rate when required.
  • Large Bore and Macro-Core soil samples are one of the most efficient means of collecting a discrete soil sample at depth.
  • Using a single tube system, the use and advancement of hollow stem augers to successfully collect a sample is no longer required.
  • Time and effort are minimized that are required to collect a discrete interval sample and eliminates generation of drill cuttings.

 

geoprobe

GSSI StructureScan™

Pezonella and Associates, Inc. uses the GSSI StructureScan™ Mini system for concrete inspection. This hand held system locates rebar, conduits, post-tension cables, voids and can be used to determine concrete slab thickness in real-time.

The StructureScan Mini safely locates metallic and non-metallic targets within concrete structures up to a depth of 20 inches. The system incorporates an auto target feature that marks the detection of features of interest. This function also estimates the depth of targets and automatically adjusts the depth scale.

Typical Uses for StructureScan Mini Include:

  • Concrete inspection – locate metallic and non-metallic targets in walls, floors and ceilings
  • Structure inspection – bridges, monuments, walls, towers, tunnels, balconies, garages, decks
  • Condition assessment – map relative concrete condition for rehab planning
  • Measure slab thickness
  • Void location
gssi

Elevation (Manometer) Surveys

Pezonella Associates, Inc. performs elevation surveys of constructed environments such as finished interior spaces and concrete slabs. These surveys assess elevation differences at locations throughout the survey space with respect to a chosen datum (reference location) within or near the survey space. Because the device used to measure elevation differences is known as a manometer, these surveys are often called “manometer surveys.” Manometer surveys are commonly performed for—but are not limited to—the following reasons:

  • To determine the likelihood that indications of potential distress (e.g., cracking in floors or walls) have occurred or are occurring due to differential movement of the supporting material beneath the area of interest. In such a scenario, identifiable trends of elevation change over particular distances within the sample space would be expected.

 

  • To determine if and to what degree suspected areas of differential movement within an area of interest are changing over time. This would be determined by conducting successive sampling events of an area of interest at regular intervals and comparing the resulting elevations.

 

  • To determine if a newly-constructed floor or paved area conforms to specified tolerances for levelness or, alternately, a particular degree of slope (e.g., for drainage purposes).

Besides determining if and to what degree differential movement has occurred/continues to occur within an area of interest, the data obtained through manometer surveys constitute an important factor when considering if remedial actions to contain and/or correct such movement may be required.

Equipment

The manometer used in our elevation surveys is the ZIPLEVEL® Pro-2000 High-Precision Altimeter, shown in the photograph below. This manometer consists of a base unit connected to a hand-held measurement module by a durable and flexible cord; it contains a non-toxic and biodegradable liquid. The measurement module is attached to a rigid, 4-foot-long monopole that stabilizes the measurement module at individual measurement locations. The base unit is placed and secured in a position that precludes its movement during the duration of the survey; the measurement module, mounted on top of the monopole, is positioned at the first measurement location. Next, the measurement module is set to zero and the first measurement location becomes the datum of the survey. The rest of the spot elevations, measured at various locations throughout the sample space, are with respect to the survey datum. Differences in pressure between the datum and each location measured cause movement of the fluid within the manometer. These changes in pressure are caused by differences in elevation; the difference in elevation associated with a particular change in pressure is provided as a measurement reading on the display of the measurement module. Following the survey, the respective locations and elevations of all measurements are used to produce a topographic surface that is superimposed over the layout of the sample space. Among other uses, such a drawing facilitates the identification of discrete locations of differential movement.

Refraction Microtremor (ReMi) Survey

With the ReMi Survey equipment, site-specific seismic classification per the IBC can be obtained economically. The survey is performed at the ground surface with no need for a specially cased borehole. The method measures ambient seismic “noise” and can be conducted in seismically noisy areas such as urban environments.

Tinius Olsen Universal Machine

  • Digital/Computerized
  • Rated up to 200k lbs.
  • Able to do yield and tensile strength testing on reinforcing bars
  • Able to do flexural strength testing on concrete.
universal-machine