ASTM C Standard Specification for Aggregate for Job-Mixed Portland Cement-Based Plasters. Questions and answers on Stucco and Plastering March, Graded sand for cement-plaster and interior plaster. ASTM C , and ASTM C Find ASTM C products and abstract using the BuildSite database. Get the right product for the spec.

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His formula is 7 bags of varied grits of sand, that is one bag each of 1, 2, etc. Sstm of the PDF is not permitted.

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The word “pound” in Spanish, Italian and Latin is “Libra”. This sandblasting sand is graded from medium about mm down to a very fine powder. Fine powder is packaged as silica fines. When used as a stucco finishdifferent grades are usually mixed together to vary the size for improved strength and appearance.

This abstract is a brief summary of the referenced standard. This atm what we usually use in our stucco finish coat.

ASTM C to the rescue. The breaking strength of these boats was well f897 10, PSI.

This specification covers natural or manufactured aggregate for qstm in job-mixed base and finish-coat full thickness Portland cement, Portland cement-lime and modified Portland c89 plasters. Now, gypsum plaster is only avaiable in 50 lb. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of c879 standard.


ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Also, since the sand is v897 shaped, larger width particles can pass through the sieves. Sand like Q-ROK is used in stucco finishes, but the grading is different. The PDF Download is licensed per individual in which the individual can place on up to four electronic devices for their personal use.

Imagine how strong other high abuse applications can be, such as mud floors, simply by spending a few bucks for graded silica sand. Link to Active This link will always route to the current Active version of the standard.

The main difference is that number 3 is all the same size about 3 mm.

This chart is completely ambiguous if you do the math, but the idea is that the sand is graded from coarse down to fine powder. The varied grits, or different particle size adds increased strength and crack resistance to stucco.

Aggregate subjected to five cycles of the soundness test shall show a loss, when weighed in accordance with the grading of a sampling complying with the limitations set forth. These notes and footnotes excluding those in tables qstm figures shall not be considered as requirements of the specification. Use on a local area network or other network is not permitted. ASTM C astn currently being specified a lot for interior basecoat plaster in Federal government work.


What I am trying to say with all of this is that mortar can develop incredible strength by simply varying the grit of the sand, and using silica sand.

ASTM C – 00 Standard Specification for Aggregate for Job-Mixed Portland Cement-Based Plasters

For a volume license the PDF is licensed to the person in which it is assigned. I know somebody out west who plasters boats. Number two is all mediumand number 1 is all fine. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not asym standard.

The reason is that the smaller grains fill in the voids when the mortar is packed down. JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website. Silica sand usually crushed quartz or sandstone is passed through various screen sizes and measured as to the percentage of what size the grains are. We recommend users of early versions of Internet Explorer to update to Version 10 or later.

Have you ever wondered why the word “pound” is abbreviated lb. Historical Version s – view previous versions of standard.