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Test Mode

Direct Transmission Indirect or

Surface TransmissionSemidirect Transmission

CONCRETE TESTING

NDT / Protection and repair of concrete structures . . Quality and homogeneity evaluation

Ultrasonic pulse velocity (continued)

Testing equipment for the construction industry

REBOUND MEASUREMENT

q STANDARD

EN 12504: Part 4, BS 1881:203, ASTM

C597, NF P18-418, UNI 7997-9189-9524,

UNE 83308, CUR 69

� 58-E0049/B

Dual Tester for Ultrasonic and

Rebound tests including electronic

rebound hammer directly connected

� 58-E0049/A

Dual Tester for Ultrasonic and

Rebound tests (with manual input

of rebound hammer results)

General description and specifications

Measures the velocity of ultrasonic pul-ses through a concrete section providing information on cracks, voids, strength and gives quick estimates of dynamic modulus of elasticity and Poisson’s Ratio, on site or in the laboratory. Can also be used for estimating times for formwork striking. The pulse velocity can be combined with the rebound hammer value for the streng-th evaluation based on the mathematical equation of the test report CUR 69 publi-shed by the Research Institute of the Dutch Concrete Association.The measuring unit houses an integral data logger for data acquisition and processing with memory for up to 1200 readings.The model 58-E0049/B combined tester is a compact apparatus including UPV meter and electronic rebound hammer.

58-E0049/B tester

This provides significant practical and eco-nomic benefit by offering one system for both ultrasonic and rebound testing. The 58-E0049/A version provides a lower cost alternative which gives the same results but with manual input of rebound results measured using a standard concrete ham-mer 58-C0181/N.

- UNIQUE FEATURE:

Combined ultrasonic and rebound ham-

mer determination

- Non-destructive evaluation of homoge-

neity of concrete and detection of cracks

and voids

UPV meter

Microprocessor incorporatedFrequency range: 24 to 150 kHz

Receiver input impedance: 1 MΩ

RS 232 output Connectable to oscilloscopeTransit time measurement: from 0.1 to 1999.9 µs

Pulse rate: from 1 to 10 per second, selectable

Accuracy: 0.1 µs

Transmitter output: up to 1500 V

Battery operated by internal rechargeable battery pack and internal chargerBattery life: 18 working hours

Electronic concrete test hammer

Impact energy: 2.207 N•m

B Dimensions: dia. 78x335 mm

A Weight approx.: 1 kg

- Non-destructive estimation of the

mechanical properties of the concrete,

strength and modulus of elasticity

- Light, portable and easy to use

- Probe with sampling button

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289

Spare parts

s58-E0046/1 Cylindrical head, 54 kHz nominal frequency, dia. 50x54 mm

s58-E0046/S Cylindrical head with sampling buttom, 54 kHz nominal fre-quency, dia. 50x54 mm.

s58-E0048/5 Spare 3 m cable for transducers or for oscilloscope connec-tion

s58-E0046/3 Coupling agent (contact paste), 250 cc bottle

CONCRETE TESTING

. . NDT / Protection and repair of concrete structuresQuality and homogeneity evaluation

Ultrasonic pulse velocity (continued)

Testing equipment for the construction industry

General

Memory: stores up to 1,200 results

Power supply: internal rechargeable batteries and internal battery charger

Ambient temperature range: 0-40°C

RS 232 outputB Dimensions: 210x300x300 mm approx.

A Weight approx.: 3 kg

Standard outfit

The standard version comprises the 54 kHz Transmitter and Receiving heads (one of the two probes is fitted with a sampling button in order to select readings to be recorded) with 3 m cable, calibration rod, 250 cc bottle of contact paste and carrying case. Electronic rebound hammer included (58-E0049/B model only).

sCode Nominal Shape Dimensions frequency (mm) (kHz)

58-E0046/30 24 cylindrical dia. 50x7558-E0046/33 150 cylindrical dia. 25x54

Other available heads

Oscilloscope

s58-E0048/10 Oscilloscope. For labo-ratory use. 110-230, 50-60 Hz, 1 ph. Complete the oscilloscope with three cables 58-E0048/5. See spare parts.

UPV meter calibration

The tester is supplied complete with a 150 mm calibration rod corresponding to approx. 50 µs transit time.

Accessories

Testing headsThe 54 kHz transducers are supplied with the tester because this is the assumed standard. Different heads are available with different nominal working frequency, between 24 and 150 kHz (this is the usual range for normal concrete): the highest frequencies (82, 150 kHz) are indicated for homogeneous concrete, the lowest (24 kHz) for heterogeneous concrete.

58-E0048/10

58-E0046/1S Probe with sampling button(for 58-E0049/B and 58-E0049/A only)

Sampling button