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 Featured Systems
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  *NABL Accredited Tests
 Concrete Strength & Quality Assessment
Rebound Hammer Test
Rebound Hammer*
(IS 13311 Part 2)

This test measures the surface hardness of concrete. For new structures, the hardness reading is used to co-relate the strength of concrete. The hammer has to be used normal to the test surface, vertically (up or down) or horizontally depending on the structural element.


Ultrasonic Pulse Velocity*
(IS 13311 Part 1)

This test is used to measure the quality of concrete by velocity of ultrasonic pulse. The velocities are affected by composition of Concrete, Presence of Cracks, Voids & Other Imperfections that affect the quality of concrete. Distance/Time=Velocity. Concrete is classified as excellent, good, medium, doubtful depending on the velocity calculated.

UPV Test


Compression Test

Compressive Strength of Core*
(IS:516)

75mm or 100mm diameter cores are taken on site using state of the art core cutting machines. Cover meter is used to locate the reinforcement steel before core cutting. This prevents structural damage to the RCC member by avoiding the reinforcement. These cores are dressed in our lab and tested using standard compression testing methods to determine compressive strength and arrive at equivalent cube strength of concrete.

 Chemical Tests on Concrete
Ph Chloride and Sulphide Tests

To check conformity to IS 456:2000, these tests are designed to measure the PH value of concrete and determination of sulphates and chloride content in concrete. Samples collected on site are transported to the laboratory for further processing.


PH-testing-kit


ChlorideTesting Kit

Chloride Profile Test

Using sophisticated onsite and laboratory methods, the chloride content is plotted against depth. This gives an indication of the extent of chloride content across the structural member.

 Corrosion Assessment
Half cell potential*

ASTM C876-91

Half cell potential test determines the probability of corrosion activity taking place at the point in the Reinforcement. A higher probability means more chances of corrosion. This test measures the probability and not the extent of corrosion.

Halfcell Potential test

Carbonation-Depth

Carbonation Depth*

(BS 1881 Part 201)

When the cover concrete is carbonated the process of corrosion enhances due to the reduction in the alkalinity surrounding the reinforcement bars. The estimation of carbonation depth thus helps in predicting the period of protection from corrosion.

 Reinforcement Check
Cover Depth Measurement*

( BS: 1881 Part 204)

This test measures the distance between the surface and the rebar. Used to determine spacing between rebars and the concrete cover, this is an important test for in-situ quality control.


CoverDepth Measurement


Reinforcement-Mapping

Reinforcement Mapping

This method is used to assess reinforcement bar diameter and spacing of main bars and stirrups. For new structures it can be used to determine the exact usage of steel. In old buildings this is used to gather information on the reinforcement, not available or otherwise. This information is then used to prepare the structural drawings as constructed.

 Inspection
Visual Inspection

A detailed visual inspection is carried out by extensive photography and marking on the drawings. This provides a ready reference for structural audits, structural repairs schemes and technical meetings. All structural observations are codified for quick assessment and incorporation into the BOQ for repairs.


Visual-Inspection


Endoscopic-Inspection

Endoscopic Inspection

Ideal for inspection in false ceilings, crevices and other difficult to inspect areas, this computer based system is designed to capture still photos and videos of the hidden surface. Ideal to capture spalling above false ceilings during inspection and other applications, this test is a critical test.


Crack Width Measurement

Using standard thickness measurement devices, crack width is measured either one time or over a period of time say, 6 months, specially fabricated devices ensure that measurements are taken exactly at the same place again and again for plotting historical trends. ideal for structural designers to check progressive development of cracks, this is quick, low cost method.


Crack Width Measurement

 Other Tests

Verticality Check

Verticality Check

Verticality Check to ascertain the vertical face of the building/shafts.


Slab Load Test

Conducted over a period of 72 hours, this test confirms to IS 456.:2000 clause 17.6 An elaborate system of cables and dial-gauges ensures that the test is rapid, does not require any special construction (like columns) to be done and is done with available material at site (sand bags).

Slab Load Test


Slab Deflection Test

Slab Deflection Test

Using a system of weights and calibrated scales, the slab deflection is measured at the ends, middle and midpoints. The results of the deflection are then compared with the national building codes for checking acceptable limits.

 Timber Tests
Moisture Meter

Measuring the moisture content in elements like timber and plaster, this tests indicates the quality of the material especially after ageing over a long number of years.


Moisture Meter


Timber Test

Timber Test

Visual inspection for qualitative assessment of the state of timber to identify Defects and alterations including
knots and fibre deviation, longitudinal splitting, ring shakes, biological damage and insect attacks. Using Non-Destructive Methods (NDT) to measure the moisture content of the wood, which severely affects its
Mechanical properties and its susceptibility to degradation by decay, Ultrasonic investigations, Assessment of the material hardness and superficial consistence, Detection of internal defects and density variations by means of measure of drilling resistance, Compression tests and Bending tests (10 specimens type b) for modulus of elasticity and strength.

 Steel Assessment
Ultrasonic Thickness Gauge

Recommended for most of the steel structures, the thickness measured is compared with the standard section thicknesses. A reduction is measured in percentage.


Ultrasonic Thickness Gauge


Dye Penetration Test

Dye Penetration Test

Designed to detect surface welds, the test generates patterns that are photographed for reference. Ideal for key welds where defects are visible to the naked eye, this is a quick test applicable for steel structures.


Magnetic Particle Test

Designed to detect sub surface welding defects, the test generates patterns that are photographed for reference. Ideal for key welds where defects are not visible to the naked eye, this is a quick test applicable for steel structures.


Magnetic-Particle-Test


Ultrasonic-Thickness-Gauge-Over-Coatings

Ultrasonic Thickness Gauge Over Coatings

Normally, steel thickness gauges do not measure thickness over coatings. Using the latest globally available instrumentation technology, this test measures the steel thickness from upto 20 mm of coatings and underwater, making it the ideal choice for marine applications and industrial applications.

 Pile Foundation Tests
Pile Dynamic Test

Pile dynamic test is used to assess the load bearing capacity of the pile. This test uses a impact hammer (of weight in proportion of the weight of pile). Test are conducted to comply to international codes like ASTM 4995 (High Strain Dynamic Test) and IS-2911 (part-1 section-1) using Hileys formula based on the preference of the client/consultant. Data is captured using state of the art instruments. Data processing is done to arrive at the dynamic load bearing capacity as per applicable standards. This test is relatively easy to conduct and requires very few site arrangements as compared to a static load test.

Pile-Dynamic-Test


Pile Integrity Test
Pile Integrity Test*
(ASTM D-5882)

Pile integrity test is used to assess the continuity of piles. With this test, necking or bulging and uniformity of quality of concrete is checked.


Foundation Measurement

Usually done for structures that require additional loading or change of use, footings are excavated near the periphery of the structure. The type of footing, its dimensions, water table (if observed) are recorded. Mapping provides information to an extent of the reinforcement.


Foundation Mesurement

 Vibration Testing
Pile Integrity Test
Vibration Monitoring
Vibration Monitoring

Ideally suited for assessing the vibrations on structures, this test quantifies frequency from 0Hz to 200 Hz. The output of this test is taken for dynamic loading calculations by the designers.

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