Posted on July 7, 2019


This standard is issued under the fixed designation C; the number Conversion and rounding given in Standard IEEE/ASTM SI. The intention of this article is to clarify the specifications listed in ASTM C, Standard Specification for Mixing Rooms, Moist Cabinets, Moist. ASTM C Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage. Tanks Used in the Testing of Hydraulic Cements and Concretes.

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According to an informal poll of CCRL inspectors, the number of laboratories with curing tanks versus curing rooms is about evenly split. This will significantly help maintain the temperature and humidity requirements.

Referenced Documents purchase separately The documents listed below are referenced within the subject asmt but are not provided as part of the standard. Moist rooms can be expensive to build and maintain, but they also hold more specimens, which are easier to organize and locate when placed on shelves.

Most labs that choose this method use a fish pond circulator. No other units of measurement are included in this standard.

Learn how to be an AASHTO lab 24/7

They both seem to be equally popular. Common Errors CCRL inspectors write many findings in their reports on curing facilities and associated records. Importance The importance of having a properly functioning curing facility cannot be overstated. This article can be utilized aatm a general guideline for curing materials that include Portland cement concrete, masonry mortar, masonry cement, concrete beams, grout, and hydraulic cement see Table 1.


The first option is to equip each tank with a temperature recorder that is monitored weekly. Special ast to Jan Prowell and the other employees of CCRL who shared their experiences evaluating curing facilities and records.

ASTM C Standard

If you have more than one tank, you have two options for configuration. Each laboratory will need to consider the unique requirements of asmt testing needs when designing and maintaining a curing facility.

Air in moist cabinet or moist room shall be saturated with moisture in order to provide specified storage conditions and air temperature shall be controlled with provisions made for heating, cooling, or both.

Tanks compliant with C will also meet the requirements of C The Cure for The Cure: Thanks for reaching out to us. Whichever option you choose, you must be capable of heating or cooling the system, regardless of your geography, even if the laboratory is located in a region with a fairly consistent climate.

How much calcium hydroxide do you use per gallon of water for a cure c5111

ASTM C, Test equipment Controls

Comment cannot be empty. The benefit of a chart recorder is that the information is readily available and in full view at all times, and labs that use these tend not to get written up for not evaluating the asttm temperature data. Curing tanks might be a more cost-effective solution, but temperature control can be difficult, and they take up a lot of floor space.


The temperature of ashm solution in the tanks must also be monitored.

Have you ever wondered which option your competitor is using? Your review has been submitted successfully. From Table 1 it looks like it. Tanks also require additional documentation. Also consider all the man hours lost to atm maintenance and quick-fixes, not to mention having to spend time writing corrective action reports for your AASHTO re: Since awtm seems to be a xstm of confusion and misunderstanding regarding curing facilities and their requirements, I decided to write an article about them.

Some of the most common errors include: Take extra care to ensure that the flow between the tanks is even. Trying to cut corners on curing can produce erroneous test results. There is also the option of using a smaller moist cabinet for specialized projects rather than building an entire room.

It is important to choose temperature charts that are easily read and do not have a scale so small that the pen or marker line width exceeds the ast, lines.

Fill the tanks with water that has been saturated with lime calcium hydroxide, a. Maintaining two sets of working spray nozzles will be less time consuming than continuously repairing dripping nozzles, or suffering the consequences of improperly cured materials.

There are two options to fulfill this requirement.