Fresh and Hardened Concrete Testing

• Shock-proof pressure gauge mounting.
• Lightweight aluminum construction.
• Heavy-duty plastic carrying case for easy transport.

The Precision Air Entrainment Meter offers the ultimate in an instrument for use in the testing and designing of concrete mixes.

The container is rigid and has a capacity of exactly 0.250 cubic foot, thus providing an accurate device for the performance of unit weight testing. For convenience, the tare weight in grams is stamped on the bottom. The meter’s exclusive multi-range feature accurately measures entrained air up to 22%.

• Direct-reading 3-1/2” (89 mm) diameter gauge.
• Built-in hand pump with instant release valve.
• Quick-operating lid clamps.

The Press-Ur-Meter is a 1/4 cu. ft. (0.007 m3) air meter used to quickly determine the percentage of entrained air in fresh concrete.

The meter is supplied complete with tamping rod, syringe, calibration vessel, straight edge and carrying case.

• Ultra lightweight — weighs one third the weight of brass units and half the weight of the aluminum models.
• No threads to strip — uses expansion type plug top.
• Top and bottom of meter are held securely together by means of a stainless steel V-clamp.
• Leak-proof O-ring seal design.

The Volumetair is designed for use in the rolling method of measuring entrained air in any concrete. Ultra lightweight, accurate, and easy-to-use, the unit is supplied complete with the meter, funnel, syringe, tamper, calibration cup, mallet, strike-off bar and plastic carrying case.

The PVC and fiberglass construction not only makes the unit lightweight; it also allows the user to use water for clean-up or dipping in muratic acid for periodic cleaning.

Included with the Air Indicator is a cleaning brush and plastic squeeze bottle for the alcohol.

The ELE Air Indicator is easy to use. To operate, the small measuring cup is filled with the cement mortar. Placing the finger over the small end, fill with alcohol to the indicating line on the large end of the glass vial. Insert the cup at the large end. After agitation, the number of spaces on the scale that the liquid drops represents the percentage of air in one cubic foot of concrete mix.

• Space-saving, table-top design.
• Even heat distribution.
• Thermostatic controlled for accurate heating.
• Replaceable heating elements.

The Warming Pot is designed for use in any laboratory for melting and maintaining the temperature of capping compounds, paraffins and sealing waxes. All Warming Pots are equipped with a cover, pilot light, and adjustable thermostat.

Mounted on an air cooled base, the pots incorporate fiberglass and air insulation to keep heat losses to a minimum.

• Rust-resistant aluminum frame construction.

• Rust-resistant aluminum frame construction.

• Flake form for easy and convenient handling.
• Consistent from one box to the next.
• Plasticized for minimum odor and even load distribution.
• Minimum compressive strength of 5,000 psi after 2 hours of cooling.
• Wide pouring range and highly reusable.

Supplied in flake form, this Capping Compound provides exceptionally easy and convenient handling and melting compared to powder, block or briquette compounds. Consistent from one box to the next, the compound is plasticized for minimum odor and even load distribution.

• Time saving and odorless.
• Available in a variety of sizes.

Unbonded capping systems are available as an alternative method for use in compression testing of cylindrical concrete specimens. The system is faster, cleaner and odorless as opposed to bonded capping methods.

To obtain reliable and consistent test results, the ends of all concrete cylinders should be capped before testing. The set consists of a complete selection of equipment for capping 6" (152 mm) diameter by 12" (305 mm) long concrete specimens.

Set Includes:
1 6" (152 mm) Cylinder Capper (34-6093).
1 4 qt. Warming Pot (34-6125/0x).
1 Capping Ladle (81-0701).
1 Box. Flake Capping Compound (34-6100).
1 Cylinder Carrier (34-5300)

• Speed 3,600 vpm.
• Heavy-duty design with steel framework and deck.
• Adjustable controller to vary vibrator amplitude.

The Vibrating Table is ideal for vibrating concrete beam forms, cylinder molds and manufactured concrete products. The table will handle loads up to 300 lbs. (136 kg). The highspeed (3,600 vpm) of these tables, coupled with a controlled low-amplitude that does not exceed 1/16” (1.58 mm) linear vibration, produces a gentle settling action.

Through this action, the coefficient of friction of the material is reduced. As the material settles, the entrapped air is more readily removed.

• Flexible shaft for full vibrating flexibility and long life.

The Laboratory Vibrator is used in vibrating concrete test cylinders and beams in both the laboratory and in the field.

• Pocket size instrument for checking speed in RPM or vibration in CPM.
• Includes carrying case.

This pocket tachometer is recommended for use by engineers concerned with concrete construction operations. It is possible to check forms for the vibration which is being imparted by vibrators to make sure that the vibration is going to all parts of the form.

The Master Humidifier produces 5 pounds (2 kg) of water vapor per hour. The unit is designed to develop about 95% humidity in 30 minutes in a 2,000 cubic-foot room with moderately insulated, non-absorbent walls and without appreciable air exchange.

• Heavy-duty galvanized steel construction with zinc coating for long life.

• Thermostatic controlled heating coils.
• Easily mounts on curing tank.

• 22 kg x 0.1 g capacity balance system.
• Quickly and accurately determines concrete density.
• Heavy-duty support frame construction.

The density of hardened concrete specimens such as cylinders and cubes can be quickly and accurately determined using the ELE Buoyancy Balance.

The system consists of a heavy-duty support frame, incorporating a water tank mounted on a platform. A mechanical lifting device is used to raise the water tank and immerse the specimen suspended below the balance system. The electronic balance supplied with the system can also be used for standard weighing applications in the laboratory.

Unit Weight Measures are designed in accordance with ASTM specifications.

Yield Buckets are made of heavy-duty steel and are used for weight over volume determinations of concrete samples.

• 3 cu. ft. (85 liter) mixing capacity.
• All steel yoke and drum yoke.

The Laboratory Concrete Mixer is designed for mixing trial batches for mix designs. The welded steel drum and integral ring gear are combined with an all-welded steel frame to deliver long, reliable service with smooth and quiet operation. A five position adjustable drum lock allows the drum to be set at the best possible mixing angle.

• Molded single unit for consistent dimensional uniformity.
• Test cylinder molds are virtually non-absorptive.
• Molded polypropylene construction for quick and easy stripping.
• Strong, durable and weather resistant – eliminates jobsite storage problems.
• Optional plastic lids and stripping tool available.

Single use, Plastic Cylinder Molds are used to form standard, 4” x 8” and 6” x 12” concrete cylinders used in compression test applications. Formed in a single unit out of polypropylene, the molds meet all of the requirements outlined in ASTM and AASHTO standards.

• Heavy-duty reusable steel design.
• Quick acting clamps for easy removal of specimen.
• Meet ASTM and AASHTO specifications.
• Plated for rust resistance and long life.

Heavy-Duty Cylinder Molds are made of steel and have a wall thickness of 1/4” (6.3 mm). Two quick acting clamps are welded to the mold along the longitudinal split. When the clips are released, the mold springs move apart slightly to facilitate removal of the specimen.

The molds are supplied complete with base plates, which can be easily attached by means of two stud and clip assemblies.

• Reduces mess and aids in rapid clean-up
• Minimizes fragment scattering
• Easy installation/removal with velcro tabs

The Concrete Cylinder Canvas Wrap is used to wrap a concrete test specimen in order to minimize fragment scattering. It is designed with velcro tabs for quick and easy installation and removal. The wrap is reusable and available in two sizes.

• Reusable, lightweight and inexpensive.
• Will not rust and easy to maintain.

The new, durable, lightweight Plastic Beam Form is used to mold concrete test beams. Simple thumb screws are utilized for ease of stripping, cleaning and assembly.

• Designed for easy specimen removal.
• Heavy-duty steel construction, plated for rust resistance.

Heavy-Duty Beam Forms are used to mold concrete specimens for flexure testing in accordance with ASTM and AASHTO specifications.

• Easy-to-use clamping action.
• Reduces technician fatigue and back stress.

The Heavy-Duty Cylinder Carrier is used as a handle for lifting 6” (152 mm) diameter concrete specimens. Designed to transport specimens, it is also used in removing specimens from the curing tank.

• Lightweight construction with hardened steel spindles.
• No-glare satin chrome sleeve and thimble finish.
• 5-1/2” to 6-1/2” range with 6” position at center point on sleeve.

The Concrete Micrometer is used to measure the diameters of concrete cylinders and the dimensions of cubes. The Micrometer is designed specifically for concrete specimen measurements and has a range from 5-1/2” to 6-1/2”.

• Accurate results to within approx. 15% on 1,250 to 8,500 psi concrete.
• Calibration curves plot the hammer rebound number versus compressive strength.
• Lightweight and portable.
• Carrying case and instructions included.

The Concrete Test Hammer is used as a control and test instrument for measuring the quality and strength of in-place concrete. This quick and inexpensive instrument is not intended as a substitute for control testing of concrete cylinders. The Concrete Test Hammer is valuable for use in the field for trouble-shooting to determine when test cores are needed and where they should be drilled.

Device used to measure properties of cured concrete by sending an ultrasonic signal through the sample and indicating it's findings on a display.

• Specifically designed for measuring crack widths.
• 4 mm measuring range.
• Includes pocket size carrying case.

Cracks can appear in a structure for a variety of reasons including frost action, sulfate expansion, natural shrinkage, expansion or movement and corrosion of reinforcement.

The Crack Detection Microscope is specifically designed to measure the crack width in concrete. This high definition microscope operates via a battery powered, adjustable light source.

• Inexpensive, simple yet accurate device for monitoring crack movement.
• Weather resistant, water proof design permits use in salt water.
• Hot-stamped crosshairs and grid.

The Calibrated Crack Monitor is a simple, accurate device for monitoring the movement of cracks and joints in concrete, brick, or cement block structures.

The Calibrated Crack Monitor consists of two acrylic plates. One plate is white with a black grid calibrated in millimeters, and the overlapping transparent plate has red crosshairs centered over the zero lines of the grid.

After installation, the tape which holds the plates together is cut, allowing the two plates to move independently of each other. Any vertical or horizontal movement of the crack or joint will cause the crosshair to change position on the grid.

A chart is supplied with each gauge for periodic recording of movement. The position of the crosshairs is copied onto a grid facsimile on
the chart.

• Approved for tests on both fresh and mature concrete.
• Can measure concrete strength up to 17,000 psi (110 MPa).
• Supplied complete with new electronic measuring device.

The new Windsor HP Probe System is designed to evaluate the compressive strength of concrete in-place. The test is nondestructive and can be used on fresh or mature concrete with equal effectiveness.

The system features a new electronic measuring device for enhanced accuracy and efficiency. Three individual tests can be automatically averaged and displayed on the LCD in compliance with ASTM procedures. The data together with time and date of the test can be stored in the memory for subsequent uploading to a PC.

The silver probes can be used for high performance concrete with a strength up to 17,000 psi (110 MPa).

• Complete test can be performed on-site.
• Minimal technician training and no special equipment required.
• Uses only two, environmentally safe dyes.
• Identifies ASR in concrete and differentiates ASR from other causes of degradation.

One of the primary causes of premature concrete deterioration is alkali-silica reaction (ASR). ASR causes concrete to deteriorate when sodium and/or potassium from cement attacks silica rich components of aggregate, producing gels that expand and eventually crack the structure.

In use, two reagents are applied to the broken surface of a concrete core and the excess rinsed off. On contaminated concrete, the resulting stains reveal the presence of ASR. The stains also reveal the extent of the ASR in the concrete and indicate the stage of ASR progress. A yellow color indicates that degradation has begun and a pink color warns that degradation is advancing.

• Pre-installed gasket system eliminates need to handle sticky tape material.
• Unique O-ring design seals dome to concrete instantly and installs quickly.
• Instructions provide simple 1-2-3 step approach.
• Precision dome reduces variability.
• Specifically metered calcium chloride ensures consistent measurement up to 20 pounds.

Designed for measurement of concrete moisture, the Vapor Emission Test Kit consists of the equipment needed to conduct the anhydrous calcium chloride test. This test works by a change in weight of moisture-absorbing anhydrous calcium chloride and represents the amount of moisture transmitting out of a large concrete surface area.

A scientifically engineered dome and a packet containing the proper type and amount of calcium chloride reduce variability in results. A pre-installed gasket ensures accuracy and easy installation. A gram weight scale with gradations to 1/10 of a gram is required.

• Measures both air and water permeability at the same time.
• Permeability measurements at the surface as well as within the concrete mass can be determined.
• The porosity of sealants and surface mortars can be checked.

Permeability, an important parameter in assessing concrete durability, can be accurately measured by this unique field test system.

In air permeability test applications, the system measures the time it takes for air to flow into a known volume of a sealed, evacuated chamber in the concrete, while reducing the vacuum.

For water permeability testing, the device uses the same chamber, filled with water and measures the total time in seconds for a volume of 0.01 ml of water to escape.

Through the use of the Surface Chamber Kit, the system can be used to measure the surface porosity of the concrete.

• Ideally suited for use on bridge decks, concrete piers and docks, highway slabs and parking garages.
• Complete system packaged in a convenient carrying case for easy transport to the field.

Half cell potential measurements serve as an important means of determining the probability of corrosion activity on the structure reinforcing steel. These measurements, which are related to the electrochemical nature of corrosion, allow an accurate survey to be performed in a short period of time.

Data from these surveys can be plotted to provide an easy to interpret graphic picture of the structure. From these plots, probable corrosion areas and the total area of the structure subject to corrosion can be determined.

The Corrosion Mapping System consists of all the necessary items required to perform this test in accordance with ASTM C-876 Testing Standard.

• On-site results within 5 minutes.
• Low cost per sample compared to laboratory testing.
• Covers a range of 0.002% to 2% chloride by weight.
• Digital display for direct reading of lbs/cu. yd. and percentage of chloride by weight.

The Chloride Field T`est System is designed for on-site testing of chloride content in concrete. The system measures the electrochemical reaction of a drilled powder sample of concrete in an extraction liquid. A direct, temperature compensated reading of the percent of chlorides is automatically displayed.

The system consists of a hand-held digital meter with combination electrode, 12 jars of extraction liquid, 5 jars of colored calibration liquid, electrode wetting agent and carrying case.

• Designed for easy transporting to the test site.
• Includes our graduated tamping rod for accurate slump determinations.

The popular Portable Slump Test Set is preferred by many field technicians for its portability and ease in transporting to the test site.

• Large cement pan provides greater surface area and ease in cleanup.
• Ideal set for educational training and in laboratory use.
• Includes cleaning brush and mixing trowel.

The Slump Test Set is designed for technicians who prefer to use the large cement pan during slump testing.

• Available in either steel or plastic construction.
• Metal cones plated for rust resistance and long life.
• ELE Slump Cones feature a heavy-duty, spun steel design and are available in English and Metric dimensioned models.

ELE Slump Cones are available in either a heavy-duty, spun steel design or in lightweight plastic. Both versions are available in English and Metric dimensioned models.

• Heavy-duty cast aluminum construction.
• Designed for easy transport to the job-site.

The cast aluminum construction of the Slump Cone Base provides a hard and level working surface for slump testing on the job site. The octagonal base has cast-in cleats on the underside to help dig into the ground surface. Two clamps slide over the foot grips of a standard slump cone and hold it securely while filling and rodding.

Tamping Rods are used with the Slump Cone, molds and other devices to eliminate air voids in fresh concrete.

• Simple and economical to use.
• Reduces testing time.
• No special calibration required.
• Plated for rust resistance and long life..

The K-Slump Tester was developed to determine the slump and workability of fresh concrete. The device can be used for in-place measurements and for measurements inside of test molds and forms. The device is used as an indicator to correlate to the standard slump test.

In operation, the K-Slump Tester is wetted and inserted into the concrete for 40 seconds. The K-Slump reading is then taken on the scale to the height that the concrete has penetrated the tester. The tester is then removed from the concrete vertically and the workability reading is taken on the scale as the height of concrete retained in the tester. After the readings, the unit is easily cleaned with water.

• Particularly suited for on-site checks.
• Graduated handle for depth measurement.
• Stirrup to guide handle and serve as reference point.

The Kelly Ball Apparatus measures the workability of concrete by the depth of penetration test. This simple field test determines the depth to which the apparatus will sink under its own weight into fresh concrete. It is particularly suited to the quick checking of fresh concrete delivered to site in skips, wheelbarrows, etc.

The apparatus consists of a 30 lb. (14 kg) cylindrical weight, stirrup and a handle graduated in increments of 1/4” (6.35 mm).