concrete crack comparator card

Economy Crack Comparator | Concrete Crack Monitoring and ...

The Economy Crack Comparator is a handy, credit card-sized field width reference gauge that slips easily into your pocket or wallet. Perfect for cracks measurements and monitoring. Clear plastic card is marked with inch and metric scales as well as a range of common crack sizes. Quick view Add to Cart.

Economy Crack Comparator - GlobalGilson

Economy Crack Comparator. HM-639 Economy Crack Comparator measures crack widths of used in roads, pavements, bridges and other structures. This credit card-sized device is inexpensive, fits in a pocket, and can monitor cracks from 0.1 to 7.0mm (0.004 to 0.26in). Marked in inch and metric measurements. View our full line of Concrete Crack Monitors.

CRACKMON® 224R Crack-Width Comparator — BUILDERA

The Buildera CRACKMON® 224R™ economy crack-width comparator is a handy, pocket-sized crack measuring gauge for quick assessment of cracks in reinforced , masonry, drywall, stucco, and other building materials and structures.

: CRACKMON 224R Crack Width Comparator …

May 05, 2015 · CRACKMON 224R Crack Width Comparator Gauge (ACI 224R-01 Compliant) ... So for larger cracks and joints in or flooring, this card basically becomes a $14 ruler. The harrington card also has a big fat blue arrow on the backside of the card, which is incredibly useful for pointing out the subject of a photo.

User rating: 3.1/5

CRACKMON® 224R-50 Crack-Width Comparator (50 Pack ...

The Buildera CRACKMON® 224R-50 crack-width comparator is a handy, pocket-sized crack measuring gauge for quick assessment of cracks in reinforced , masonry, drywall and other building materials and structures. Use for periodic inspection or in conjunction with long-term monitoring with CRACKMON Structural Crack Monitors.

Alternative methods for measuring crack width

A crack comparator card generally has sufficient accuracy to determine crack widths for repairs since the recommended limit for epoxy injecting a crack is 0.01 in. (0.25 mm). In my experience, optical microscopes can be challenging to use even when evaluations are performed in direct sunlight because the models I’ve used only allow light from one side of the scope.

Crack Measuring Device | Concrete Crack Meter | PCTE

Crack Width Meter. The crack width meter is used as a comparator to give an approximate crack size during visual surveys. Made of durable plastic; Graduations from 0.1 mm to 2.5 mm; Crack Monitor. On some structures the rotation at cracks is also significant. This gauge is specifically designed to measure rotation, transverse and longitudinal movement.

Concrete Crack Width Ruler | Elcometer E143

Similar in size to a standard credit card, this transparent ruler is marked with a range of graded lines, each with a specified width. To use, position the gauge over the crack and identify which line is a similar width to the crack.

Measuring crack widths in reinforced walls ...

Jul 23, 2012 · I am interested in knowing how structural engineers measure crack widths in existing reinforced walls. As long back as I can rememeber, we have used the CTL crack width gauge which is a transparent piece of plastic on which are marked lines of different widths from 0.20 mm to …

Crack Monitors for Concrete - Gilson Co.

Economy Crack Comparator is a convenient, easy-to-use device similar in size to a credit card. It is a good field reference for monitoring cracks that range in size from 0.1 to 7.0mm. Standard Crack Monitor has a range of 20mm horizontally and 10mm vertically. The upper plate is transparent and marked with a red crosshair indicator.

Crack Evaluation and Repair| Concrete Construction ...

Dec 21, 2011 · Crack widths. Crack widths typically are estimated using a crack comparator card. Measuring crack widths helps to classify the severity of cracks and evaluate the effectiveness of the aggregate interlock across the crack for vertical slab alignment and load transfer. Also, many repair options are somewhat dependent on crack widths.

Author: Author/Kim-Basham

Contact - CTLGroup

OUR LOCATIONS We serve clients around the globe. CTLGroup engineering services in Michigan, New York, and North Carolina are provided through. CTL Engineers & Construction Technology Consultants, P.C.

CRACKMON® 224R-50 Crack-Width Comparator (50 Pack ...

The Buildera CRACKMON® 224R-50 crack-width comparator is a handy, pocket-sized crack measuring gauge for quick assessment of cracks in reinforced , masonry, drywall and other building materials and structures. Use for periodic inspection or in conjunction with long-term monitoring with CRACKMON Structural Crack Monitors.

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This Crack Comparator is a handy, credit card-sized field width reference gauge that slips easily into your pocket or wallet. Perfect for cracks measurements and monitoring. Clear plastic card is marked with inch and metric scales as well as a range of common crack sizes.

Concrete Crack Ruler | Everything Branded USA

This crack ruler calculator is made of a plastic material and offers a great way to promote paving companies. To use it, simply enter the width, length, and thickness of your pour. The calculator will estimate the number of cubic yards of that will be required. An ideal item for construction companies, developers, carpenters,...

Evaluating Concrete Cracking by Measuring Crack Width ...

Evaluating Concrete Cracking by Measuring Crack Width. They come with interchangeable reticles that hold the measuring scale against the work. To use the optical comparator, first focus the instrument's scale to your eye while looking at a light source. Then position the reticle tightly against the crack to be measured and orient the scale to the proper measuring position across the crack.

CRACKMON 224R Crack Width Comparator Gauge (ACI ... …

So for larger cracks and joints in or flooring, this card basically becomes a $14 ruler. The harrington card also has a big fat blue arrow on the backside of the card, which is incredibly useful for pointing out the subject of a photo.

crack comparator card - montexvenray.nl

A crack comparator card generally has sufficient accuracy to determine crack widths for repairs since the recommended limit for epoxy injecting a crack is 0.01 in. (0.25 mm). Crack Measuring Device| Concrete Crack Meter | PCTE. Crack Width Meter. The crack width meter is used as a comparator to give an approximate crack size during visual surveys.

Elcometer 143 Crack Width Ruler

Elcometer 143 Crack Width Ruler. Similar in size to a standard credit card, this transparent gauge is marked with a range of graded lines. Each line is a specified width. To use, position the gauge over the crack and identify whcih line is a similar width to the crack. Read off the width value.

Magnifying Crack Comparator - testmark.net

Magnifying Crack Comparator. CA-0810. This magnifying comparator simply monitors cracks in and masonry structures. Minimum scale is .001" and maximum is .050. Comes in a holder that will easily fit in your pocket. Shipping Weight: 0.06 lbs.

Quantification of Cracks in Concrete Bridge Decks in …

•“Structural” cracks were located over the supports •Shrinkage cracks were perpendicular to the structural cracks •Several hairline cracks were located throughout the bridge decks •Select crack widths measurements were between 0.04 – 0.06 inches •Structural cracks were as wide as 0.125 inches 41

Authors: Sai Ganapuram · Michael Adams · Anil PatnaikAbout: Cracking · Ultimate tensile strength · Service life · Corrosion

Crack Gauge for Concrete Crack Monitoring - Humboldt Mfg

Concrete Crack Width Gauge. Designed to measure widths and locations of cracks prior to crack monitoring program. HC-2942A Concrete Crack Monitor Adhesive. Very-fast-hardening 2-component Epoxy Adhesive. HC-2944 Concrete Crack Gauge, Screws and Plugs. Suitable for affixing a crack gauge to a flat surface. HC-2943 Concrete Crack Monitoring Caliper Marks. Plasltic caliper marks used to …

Wholesale Custom Promotional Crack Gauge from China

Concrete crack gauge 4''. This version features inches. We are also able to provide any other cm or inch scales required. 4" L x 1 1/8" W x 0.02" ThickImprint Method: Screen printed Color: White Product Dimentions: 4" L x 1 1/8" W x 0.02" Thick Additional Information: Basic pricing includes 1-color customer imprint in the same color as the scales on both sides.

Crack Comparators - ndtsupplies

Crack Comparators. Crack comparators are used to measure the actual size of indications identified during the liquid penetrant inspection process.

Opentip: Custom Crack Comparator, 3 1/3" L x 2 1/5" …

This Crack Comparator is a handy, credit card-sized field width reference gauge that slips easily into your pocket or wallet. Perfect for cracks measurements and monitoring. Clear plastic card is marked with inch and metric scales as well as a range of common crack sizes.

Opentip: Custom Concrete Crack Width Ruler, 3 1/3" L …

Similar in size to a standard credit card, this transparent ruler is marked with a range of graded lines, each with a specified width. To use, position the gauge over the crack and identify which line is a similar width to the crack.