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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Moist rooms are made from walk-in refrigerators, insulated shipping containers, or scratch built rooms. It depends on the type of water and what is in the water. This specification includes the requirements for mixing rooms where paste and mortar specimens are prepared and for moist cabinets, moist rooms, and water storage tanks where paste, mortar, and concrete specimens are stored; intended for use in the testing of hydraulic axtm and concretes.

ASTM C, Test equipment Controls

Accidentally draining and overflowing a tank can occur if there is an equipment malfunction. 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.


A common problem with misters is that they tend to clog. It is best to have them inside and against an interior wall. Your comment must be approved first. Digital temperature recorders or data loggers are gaining popularity. Comment cannot be empty. Subscribe to new comments. The easiest way to determine this is to add calcium hydroxide to the water and then stir the water. You’ve already submitted a review for this item.

There is also the option of using a smaller moist cabinet for specialized projects rather than building an entire room. The specified relative humidity in these systems shall be maintained by the use of one or more fog sprays, water sprays, or curtains of water on the inner walls. There is no set lbs of calcium hydroxide per gallon of water.

Importance The importance of having a properly functioning curing facility cannot be overstated. For tank maintenance, you are required to thoroughly stir each tank at least monthly to replace depleted calcium ions. Link to Active This link will always route to the current Active version of the standard.

Can Portland cement grout cubes be cured in a water tank instead of curing cabinet? The Cure for The Cure: This article can be utilized as a general guideline for curing materials that include Portland cement concrete, masonry mortar, masonry cement, concrete beams, grout, and hydraulic cement see Table 1. ICS Number Code From Table 1 it looks like it.


If you have to install a moist room against an exterior wall, try to give at least 6 inches of dead air space. They both seem to be equally popular.

Whether you have multiple tanks or just one tank, you must perform routine maintenance. Tanks compliant with C will also meet the requirements of C Thanks for reaching out to us. You may use either a chart recorder or a digital recorder.

Both curing tanks and moist rooms have their benefits and drawbacks. First, heavily consider the placement of your moist room or tanks.

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Essentially, your tanks need to be made of a non-corroding material like thick plastic or metal. It is informational only and not an official part of the standard; the full text of the ashm itself must be referred to for its use and application. The gold standard for laboratory accreditation in the construction industry.

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