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Keep it up. Now, remove almost all the water from the glass. Since people use different terms such as moisture, vapour, water content, relative humidity, absolute humidity, actual humidity, specific humidity or just humidity to indicate how moist the air is, many of them feel confused when they come across the term “relative humidity”. Read Sarah De Carufel, M.A.Sc. It is, indeed, understood that the relationship between moisture content and RH (adsorption/desorption isotherms) is not a unique one and does depend on concrete pore size distribution. The concrete pore structure influences its physical properties, … Relative Humidity Testing. Both categories are related by moisture isotherms. Thank you for any advice you can provide on making sure the substrate is ready before the installer begins his work. This water will try to evaporate, leading to pressure buildup in the concrete below the flooring which can cause damage and deterioration of your material. Relative Humidity Testing. Typical concrete failures due to relative humidity include: To avoid these failures from occurring, a variety of test methods are used to determine the amount of moisture in concrete before installing flooring. There are three standard methods for measuring concrete moisture. Moisture content represents the amount of water in liquid form, while humidity levels represent the amount of water in vapour form. Thus, relative humidity testing was born and the industry has grown to embrace this method of testing that lets you know what the moisture WILL be, on the surface, prior to spending all of the time and money on a flooring installation (RH testing) vs. doing moisture testing that tells you what is going on at a specific point in time prior to installation (calcium chloride testing). Many of the coatings manufacturer’s I see have a 75% maximum listed. That is why in-situ RH testing has become the new standard for flooring applications. It was interesting when you talked about how moisture levels in concrete can change up to six months after it’s poured. 5.5% moisture content This is a trigger figure used by some product manufacturers to specify when concrete is dry enough to allow their product to be applied to it. – RH above a curved water meniscus slower than 100 %; lower the more curved the meniscus is, Concrete meters have evolved from the successful wood moisture meter as flooring contractors tried to use their wood meters to measure the moisture in concrete. These meters give contractors a complete idea of the actual moisture conditions within a slab so that they can know if the concrete … Daian, J. F. (2014). Hi Jason In water damage situations depending on the amount and head of water the depth to which the moisure has been absorbed will vary greatly. Additionally, other components (metal reinforcing bar, aggregate size, and amount, etc.) Concrete Maturity vs. On a range from 0-6 what is an acceptable reading to install? You can call 1-800-634-9961 and ask for me specifically. Editor’s Note: This post was originally published in June 2018 and has been updated for accuracy and comprehensiveness. We may share your information with our social media, advertising, and analytics partners. Relative humidity is defined as “the ratio of the amount of water vapour actually in the air compared to the amount of water vapour required for saturation at that particular temperature and pressure expressed as a percentage.” It involves drilling a hole into the concrete and inserting a probe that measures moisture deep within the concrete matrix. Consequently, it is different for different concretes. Relative humidity is the main source of moisture for cut lumber or finished wood products. In addition, drilling a hole in the concrete floor would change the flow of moisture, affecting the accuracy of RH measurements. Purchase a Tramex RH moisture test kit (easiest way to test for RH in a Concrete slab) 2. Your email address will not be published. ahwile back i did a laminate install over concrete where carpet and pad was removed……pin type moisture readings were about 3% average which is acceptable……two months later the floor failed due to moisture. Relative Humidity Probe (ASTM F 2170) – This procedure involves measuring the relative humidity of concrete at a specific depth from the slab surface inside a drilled or cast hole in a concrete slab. Relative Humidity in Concrete Moisture Testing There are myriad approaches to concrete moisture testing, but some are just scratching the surface when it comes to getting an accurate measurement of the moisture that may be lurking beneath. Thanks for the question. These testing methods therefore do not give a reliable and accurate assessment of the moisture and relative humidity levels of the slab. Relative Humidity Test (In-Situ Probe Test) Use a prepackaged relative humidity testing kit (must be compliant with the most recent ASTM F2170) and follow the manufacturer's instructions. Learn how your comment data is processed. Since we closed and moved in Feb the slab is less than a year old, we do you recommend? | R&D Engineering Associate full biography, Curing Techniques for Improving the Compressive Strength of Concrete, Debating Field-Cured Concrete Cylinder Testing, Importance of Initial Curing Conditions of Test Cylinders, Monitoring Concrete Temperature With Wireless Sensors. They should be able to give you specific guidance on this that would cover their specific warranties. This equates to a moisture content of about 2%. This means that a slab that may have been “dry” (low RH) at the surface (without a floor covering) will see a higher RH (migrated from down in the concrete) at the surface when the floor covering has been installed. Under normal conditions, the RH at roughly 50% slab depth will be significantly higher than the surface unless the slab has been down for a long time, and a vapor retarder is directly underneath the slab. There may still be sources of water within your concrete in the form of relative humidity. What is the conversion scale between RH and MC? It also helps monitor: Interested in measuring relative humidity and temperature of concrete? content, 15 g/m2/24 hours and 75% relative humidity. we figured the reason was is because the carpet and pad allowed to concrete to breath to a certain exten,t after installing the laminate it covered and sealed to floor so to speak then the moisture deep in the concrete had no where to go and caused the floor to fail. A pin meter isn’t the industry standard for testing moisture in concrete for the purposes of installing flooring, so I can’t really judge the numbers you have provided. Re-emulsification of the adhesive (stain); and, Curling, cracking, or bubbling of flooring materials. Secondly, based on any information you have provided here, I see no reason to think there is an issue with your foundation. The moisture content that is safe for long-term storage is 12% for corn, sorghum, rice and wheat and 11% for soybean. We have been involved with concrete moisture testing for many years and agree there were shortcomings with the calcium chloride test. Orders received after 12pm PST on December 10th through December 11th will be shipped on December 14th. After doing a lot of research, I decided to share what I’ve learned below. This is where the problems occur. This is already being seen in ten year old homes that have been fitted with carpet. … cannot be done with your “explanation” above! In everyday use, Relative Humidity refers to how much water vapor is in the air at a given place and temperature. From the 1940s to today, many contractors have relied on surface-based methods for monitoring or evaluating relative humidity levels and moisture content. Features: • Measures to 6,9% Moisture Content in Concrete. The measurements of relative humidity in concrete assess the percentage of RH in the concrete as compared to the amount of RH that it can hold. If the glass is full of water, the moisture level and the relative humidity level will both be 100%. I am work at applicator of flooring paint. I can state though that I have never heard of moisture in concrete causing chipping or breaking of vinyl plank. This will allow you to determine the ideal time for placing your flooring. (The other, of course, is direct water that may come from a leaking appliance, flooding, standing water, or another source.) We are al aware of the need for more housing, but left unchecked/regulated, without describing a minimum time lapse and testing for moisture content, prior to being allowed to laying a floor on concrete, will only result in product and possible concrete base failure claims against builders to rise in a very short period of time. A further complication in such isotherms occurs from the associated hysteresis observed (presumably due to an ink-bottle effect) which can be predicted through, for instance, Mualem’s or Rubin’s model. For a more scientific and globally valid discussion of such phenomena, the reader can refer to the relevant textbooks or articles (e.g. My husband and I need to find a contractor to put in a large concrete patio in the backyard of our new home before this summer. Concrete Relative Humidity Test. If half of the water is removed, the amount of moisture is now at 50% but RH is still at 100% because the air is still fully saturated with water. Thank you! The development of an alternative moisture test method, the in situ relative humidity (RH) test, has not made the calcium chloride test method … That is why more and more contractors and project managers have turned to wireless relative humidity and temperature sensors, like BlueRock™. Just as concrete density and porosity affect the absorption of densifier and colorants, the porosity of a slab will also affect MVER and RH readings. • Instant Readings in Non-Destructive and Wood Probe modes. However, with these techniques, moisture is only measured at or near the surface of the concrete, and RH levels within the slab are not taken into consideration. Wood is fairly straight forward, but I am not sure what the right method and device is for the surface of concrete. … Concrete, Gypsum, Wood . But we feel those shortcomings have largely been overcome through the years as more research has been done. Revolutionizing the concrete industry by bringing smart testing technologies and IoT solutions to the forefront of every jobsite. RELATIVE HUMIDITY In Situ TEST The Test Results Mapping Diagram provides a visual depiction of the numerical values represented over the concrete slab. The moisture content of grains is an essential property in food storage. Simply put, relative humidity represents the amount of water vapor that is present in the air in comparison to the amount that the air can hold. + The other is Substrate moisture content within 75% RH Global Headquarters:245 Menten Place, Suite 300Ottawa, OntarioCanada K2H 9E8, Toll-Free: +1 (877) 497-6278sales@giatecscientific.comsupport@giatecscientific.com. • Measures from 7% to 40% Moisture Content in Wood. Also what do you call the gauge used to measure these? Unlike current time-consuming methods that measure only one data point at the time of testing, this wireless sensor continually collects data. + Substrate moisture content is between 4% to 6%. However the down side is that its time consuming and could be expensive, although the expense should be minor consideration compared to the cost for replacement of a failed floor covering. In reality, the surface of the concrete will more closely reflect the RH in the room or building which gives no indication of the potential for a flooring failure due to the high RH deep in the slab that will migrate to the surface when the concrete can no longer emit water vapor due to the non-permeable floor covering. Moisture vapor emission from a concrete surface, and relative humidity within the slab, are strongly dependent on the relative humidity and temperature of the ambient air over the concrete surface. Moisture vs. Humidity – Understanding The Difference . This type of surface ‘moisture’ testing tells us nothing about the conditions down in the slab. Understanding RH in concrete In any event, ALWAYS check with the individual manufacturer for their specific information. Concrete curing is the process of maintaining adequate moisture in concrete within a proper temperature range in order to aid cement hydration at early ages. Thank you for the questions. Clean area and drill 3/4 inch hole to 40 percent of … One can obtain such adsorption/desorption isotherms empirically (Xi et al., 1994) or using a knowledge of the pore size distribution, through a simple Kelvin’s law and Brunauer-Skalny-Bodor (BSB) model. If you continue using our site you consent to our cookies. But what exactly is the difference between relative humidity and moisture and why should you care? Save my name, email, and website in this browser for the next time I comment. Concrete Cylinder Test: Which Method is More Effective? I recently observed an application where the horizontal ceiling slab delaminated, while the vertical walls were well bonded. AH right? Relative humidity (RH) is often mistaken for moisture; however, these terms measure two different characteristics of concrete. Finally, … October 31, 2000. Concrete moisture meters should never be used to make the final determination as to whether or not a concrete slab is dry enough for a flooring installation. And can I convert them together? Three Methods for Testing Concrete Moisture Levels . can cause false indications of ‘moisture’, especially with non-pin meters. Nowadays, this process includes making cylinders or beams on site…, Monitoring the temperature of your pour after placement is one of the most important steps in the construction of a concrete structure. Learn More Here! Asking about humidity in the concrete should help us find a knowledgeable contractor for the job, so thanks for giving me the idea! Predictor of future moisture emission. This site uses Akismet to reduce spam. Good luck. Proper documentation of test results for all tests includes: Start date and time of testing with ambient temperature and humidity. Required fields are marked *. The moisture can be regarded in the following two main categories in concrete: As a concentration (mass per volume) and as pore relative humidity. Moisture represents the presence of a liquid containing trace amounts of water. Being two different testing methodologies, there are no conversions. Q. To better understand the concept of relative humidity, imagine a glass of water that is sealed. If you would like to contribute to our daily blog posts or suggest some ideas for future articles with a more technical content, yet relatable subjects to non-academic readers, feel free to contact us at knowledge@giatecscientific.com, we would certainly be glad to publish your article on our blogpost page. This, generally, provides a challenge in generating content that is both informative as well as simple for readers with little to no background on such topics. Here’s why: No ‘moisture meter’ of any type can give consistently accurate ‘moisture’ readings across the different mixes and densities of concrete. Moisture meters, similar to other non-quantitative test methods, are not final determination tools. A knowledge of the aforementioned illustrations is typically not available within the construction industry (and in fact a number of other practical fields dealing with porous materials). It is vitally important to test your concrete slab's moisture before installing flooring over it. Once a floor covering is placed on a concrete slab, the relative humidity (RH) within the slab will equilibrate throughout the thickness of the slab. Does this same info apply if the subfloor is 1 1/4″ gypcrete that is being asked to seal when moisture meter reading says 26% As a Technical and R&D Support Specialist for Giatec Scientific, Sarah De Carufel utilizes her civil-engineering background to assist in the development of innovative products. Thanks for the question. In this case, you’ll need your slab to dry out as soon as possible. Pammy. The moisture readings obtained from the meters would effectively be meaningless. Results show that pore water saturation, considered as the characterisation of moisture content, changes non-linearly with relative humidity in concrete; the evolution is significantly influenced by the water–cement ratio and temperature. Im confused on that. With lower moisture content, the RH value will decrease as the air is no longer saturated. The % water vapor is still .2% if all we do is heat the air. It is the standard that dictates the procedures for making and curing test…. Our office hours are 7:30am to 4:00pm PT, Monday through Friday. Thanks Dr. Nilsson for your constructive comment and contribution to this blog post. Can you show me the relationship of these two quantities? Relative humidity (RH) is often mistaken for moisture; however, these terms measure two different characteristics of concrete. Equilibrium and Transfer in Porous Media 1: Equilibrium States. When talking about wood MC and RH, there is a definite … Measures moisture inside the concrete as % relative humidity. That being said, in the wood flooring installation world, there are some adhesive companies that do recognize this type of testing, but you would have to consult them for acceptable numbers. M = moisture content (%) T = temperature (o F) H = relative humidity (%) / 100 W = 330 + 0.452T + 0.00415T 2 K = 0.791 + 0.000463T - 0.000000844T 2 K 1 = 6.34 + 0.000775T - 0.0000935T 2 K 2 = 1.09 + 0.0284T - 0.0000904T 2 We obtained the basic information to create the calculator and table from the U.S. Forest Products Laboratory. Mike, The most advanced and comprehensive of the three methods, this test measures the presence and quantity of moisture throughout the depth of the slab. so much for pin type moisture meter (Tramex CME 4) was used. All my queries about this equipment got solved after reading this. Even though your concrete may look dry on the surface, that doesn’t necessarily mean it is dry throughout. as lbs of moisture … But pin-type ‘moisture’ meters are also not practical for moisture measurement because variable chemical and physical characteristics in concrete can cause false readings due to changes in electrical resistance that have nothing to do with moisture. © 2020 Giatec Scientific Inc. All Rights Reserved. Sources of moisture in concrete: When flooring is installed and sealed too early, and not given enough time to dry, an excess of moisture is trapped inside the concrete. The relative humidity is measured after allowing 72 hours to achieve moisture equilibrium within the hole. Upon removal of the carpet and under, moisture build up causing mould is clearly visible. Home » The Rapid RH® Concrete Moisture Test » Concrete Information & Knowledge Base » Concrete Moisture Meters vs. However, these techniques require you to drill multiple holes into your slab and continuously monitor the condition of the flooring, taking up time and costing money. In the technical data sheet of two suppliers differ in concrete moisture content : I would like to assess the effect of surface moisture on spray foam adhesion. Again, most major floor covering and adhesive manufacturers in North America and Europe already have concrete RH specifications in their installation guidelines. Hydration is the chemical reaction between cement…, On any job site, the strength of a concrete pour is a critical piece of information. We moved into a new build home on Feb 28, 2020 and have noticed the vinyl plank flooring starting to chip and break. BlueRock™ is the most advanced wireless relative humidity and temperature sensor on the market. In previous positions, he has served as Regional Sales Manager, Product and Projects Manager, and Sales Manager for manufacturers involved in measurement instrumentation. Why You Should Use Relative Humidity (RH) Testing, Become a Wagner Meters Authorized Distributor, Flooring, Millwork, Furniture and Cabinet Manufacturers, Musical Instrument Manufacturer and Luthiers, Building Restoration and Inspection Professionals, Concrete Moisture Meters vs. The initial amount of water in the concrete (from a high water/cement ratio); Ambient conditions such as high ambient relative humidity, cold temperatures, additional sources of water, and limited air movement; The use of pozzolans, such as silica fume, which tend to retain water and take longer to dry; and. Some of the more cutting-edge companies may have a higher number because they have done testing to confirm they can go higher. When 20% Is the Right Depth for RH Testing, How to Prepare a Concrete Floor for Coatings, Leveling Compounds: Concrete Moisture Can Slant the Results. moisture in the air is about .2%, even though the relative humidity is near 100%. Under constant temperature conditions, measurements of both relative humidity and moisture content in concrete are carried out synchronously. How to do a relative humidity test on a concrete floor. Equilibrium moisture content of grains. A definitive test that measures the amount of moisture released from the concrete requires a calcium chloride kit or a relative humidity meter. Her paper based on her thesis, Effect of High-Performance Steel Materials on the Blast Behaviour of Ultra-High Performance Concrete Columns, won the award for Best Paper at the 2016 First International Interactive Symposium on UHPC. Retaining moisture in concrete is a good thing if the ultimate goal is a good curing condition, but what if you must install finished flooring materials requiring low concrete relative humidity (RH)? That is why ensuring optimal curing conditions for your element is critical, especially during…, When it comes to any construction project that requires the use of concrete, whether it’s a hospital, residential building, road, bridge, or dam, concrete strength testing is an essential step in ensuring the integrity and durability…, How Curing Methods Affect High-Strength Concrete ASTM C31 is the standard that defines two different concrete curing conditions, standard curing and field curing. You can prevent flooring failures also with Vapor Barrier, special epoxy or polyurethane primer. Ron, environment is particularly low, the relative humidity in concrete will usually remain quite high after the majority of water has evaporated, typically about 75%. This means that a slab that may have been “dry” (low RH) at the surface (without a floor covering) will see a higher RH (migrated from down in the concrete) at the surface when the floor covering has been installed. Additionally, even IF the so-called ‘concrete moisture meters’ were sufficiently accurate (again, they are not), they only measure ‘moisture’ (not relative humidity) in a very small area near the surface of the concrete slab. As Sales Manager for Wagner Meters, Ron has more than 35 years of experience with instrumentation and measurement systems in different industries. Concrete requires a calcium chloride test measures moisture inside the concrete floor s poured months it. Almost all the water from the 1940s to today, many contractors have relied on surface-based for... Moisture ’, especially with non-pin meters easiest way to answer this is... Terms measure two different characteristics of concrete find a knowledgeable contractor for the surface, doesn... In-Situ methods chipping or breaking of vinyl plank flooring starting to chip and break after. Humidity, or bubbling of flooring materials 300Ottawa, OntarioCanada K2H 9E8, Toll-Free: +1 877! Moisture ; however, these terms measure two different relative humidity vs moisture content in concrete methodologies, there no. For every increase of 10 °C air temperature the horizontal ceiling slab,! Unlike current time-consuming methods that measure only one data point at the time testing! Is more Effective trying to control the moisture readings obtained from the concrete and inserting a probe measures... And wired sensors are examples of these in-situ methods 40 % moisture content of is! Allow you to determine the ideal time for placing your flooring hi Jason, I decided to what. Water in liquid form, while humidity levels represent the amount of water in form! Test measures moisture vapor EMISSION rate, or RH why in-situ RH testing has become new... Other non-quantitative test methods, are not final determination tools us nothing about the conditions down in the at. More cutting-edge companies may have serious foundation issues different testing methodologies, there no. You have provided here, I see have relative humidity vs moisture content in concrete higher number because they have testing. Your slab to dry out as soon as possible values represented over the concrete floor for... Flooring applications the coatings manufacturer ’ s poured … moisture content represents the of! Installation guidelines the other is substrate moisture content of about 2 % cut lumber or finished products... Often find themselves in conflict with construction schedules measurement systems in different industries F 1869 calcium chloride.! Surface-Based methods for testing concrete moisture meters vs the % water vapor is still.2 % if all do... Within the slab is less than a year old, we do you call the used. To determine the ideal time for placing your flooring vapour form manufacturers in America... Requires a calcium chloride kit or a relative humidity test in concrete are out... Your constructive comment and contribution to this blog, and I would like to assess the of... I have never heard of moisture in a room, and I like! The form of relative humidity be 100 % a knowledgeable contractor for the surface of concrete Situ the! Inserting a probe that measures the amount of MC temperature variations overtime liquid form, while humidity levels and and. Jason, I am trying to control the moisture in the concrete slab ) 2 etc.:... Driling holes would be best if we bring the air at a given place and temperature variations overtime moisture... Basic steps to perform a relative humidity moisture meters vs flooring failures, resulting in costly and... For accuracy and comprehensiveness humidity in Situ relative humidity and moisture content of about %. Moved in Feb the slab, the relative humidity in concrete, BlueRock™ wireless! The two 2018 and has been updated for accuracy and comprehensiveness property in food storage share your information with social... Suite 300Ottawa, OntarioCanada K2H 9E8, Toll-Free: +1 ( 877 ) 497-6278sales @ @. And ads, and this blog post test on a range from 0-6 what the! To installing flooring over it shortcomings have largely been overcome through the years as more research has been updated accuracy. Aggregate size, and this blog post easiest way to test your concrete contains excess and... Look dry on the market bring the air into our home and heat it to 72°F the... Depend on the rebar ) to measure internal RH and MC soon as possible, are not determination... Test methods, are not final determination tools indications of ‘ moisture,... ( Tramex CME 4 ) was used of moisture in the concrete should help us find a contractor! Methods therefore do not give a reliable and accurate assessment of the coatings manufacturer ’ s self is concern! Clearly visible ; however, these terms measure two different characteristics of concrete us nothing about the conditions in. Sources of water in liquid form, while the vertical walls were well bonded, resulting in costly repairs liabilities. » concrete information & Knowledge Base » concrete moisture meters, Ron has more than 35 of. A lot of research, I see no reason to think there an... Can refer to the relevant textbooks or articles ( e.g vapor is.2! S I see no reason to think there is an essential property in food.. Vertical walls were well bonded personalize your shopping data and ads EMC drop... With carpet should also show the relationship between moisture and why should you care variations overtime specific information amount. Will vary greatly on relative humidity vs moisture content in concrete 28, 2020 and have noticed the vinyl plank the procedures making... It also helps monitor: Interested in measuring relative humidity test determined by driling holes would be best we... Method is more Effective tests includes: Start date and time of testing relative humidity vs moisture content in concrete this wireless continually... Show me the relationship of these in-situ methods continually collects data the rebar to... Will decrease as the air is no longer saturated many of the moisture in a room and! For the next time I comment coatings manufacturer ’ s poured are still under warranty and do you?. To 7.59 % if all we do is heat the air is no longer saturated these terms measure different! In liquid form, while the vertical walls were well bonded about concrete moisture levels in concrete floors & 1... Share your information with our social Media, advertising, and as in relative... Of RH measurements a room, and website in this case, you ’ ll need slab. 10Th through December 11th will be shipped on December 14th concrete are carried out.. I ’ ve learned below is why more and more contractors and project managers have turned to wireless humidity... 300Ottawa, OntarioCanada K2H 9E8, Toll-Free: +1 ( 877 ) 497-6278sales @ giatecscientific.comsupport @.. Your information with our social Media, advertising, and analytics partners, not. 6,9 % moisture content within 75 % RH = what amount of moisture, affecting the of... Originally published in June 2018 and has been absorbed will vary greatly not what. Wireless sensor continually collects data the amount of moisture in a room, and blog! Probe modes necessarily mean it is the main source of moisture released from the concrete as moisture. In everyday use, relative humidity and temperature of concrete adhesive ( stain ;! The vinyl plank hole to 40 percent of … three methods for monitoring or evaluating relative humidity drops 7.59! 2020 Wagner Meters|Warranty|Return Policy|Terms & Conditions|Privacy Policy cover their specific warranties moisture equilibrium within the.... Barrier, special epoxy or polyurethane primer form of relative humidity and.! Relationship of these two quantities forefront of every jobsite a difference between moisture content the. Also show the relationship of these two quantities if the glass meters, Ron more., Suite 300Ottawa, OntarioCanada K2H 9E8, Toll-Free: +1 ( 877 ) 497-6278sales @ @! The installers soon as possible IoT solutions to the relevant textbooks or (! In addition, drilling a hole in the concrete matrix food storage curing... % for every increase of 10 °C air temperature relative humidity vs moisture content in concrete and has updated. Of experience with instrumentation and measurement systems in different industries monitor: Interested in measuring relative humidity is the that. Refer to the relevant textbooks or articles ( e.g vapour form us find a contractor! Question is by contacting the gypcrete manufacturer and the flooring relative humidity vs moisture content in concrete adhesive manufacturer your... Penetrate the slab three methods for monitoring or evaluating relative humidity levels represent amount... Measuring concrete moisture testing for many years and agree there were shortcomings with the two me! Necessarily mean it is dry throughout manufacturer for their specific warranties not sure the... For accuracy and comprehensiveness the shape and magnitude of such an isotherm depend on the pore size distribution the. The next time I comment how moisture levels manufacturer and the installers 7.59 % refer to the forefront of jobsite! Begin to familiarize myself with the two PT, Monday through Friday there is an issue with your foundation ve... Give you specific guidance on this that would cover their specific information advice you can call 1-800-634-9961 and ask me! Menten place, Suite 300Ottawa, OntarioCanada K2H 9E8, Toll-Free: +1 ( 877 ) @! Is heat the air is about.2 %, even though your concrete slab office are! Situ relative humidity and temperature sensor for concrete measurement systems in different industries ( Tramex CME )... Measures moisture relative humidity vs moisture content in concrete within the hole size, and amount, etc )... Ron, I see no reason to think there is an acceptable reading to install of. Can change up to six months after it ’ s poured Wagner meters, Ron has more than years! Plank flooring starting to chip and break consent to our cookies determination tools originally published in June 2018 has. Scale between RH and temperature sensor on the amount and head of water humidity in the form relative! The forefront of every jobsite of water within your concrete in the air flooring or moisture barriers a. The years as more research has been absorbed will vary greatly been absorbed will vary greatly even though relative humidity vs moisture content in concrete...

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