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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Number two is all mediumand number 1 is all fine. The fineness modulus, friable particles, light constituents, organic impurities, material soundness, and sieve analysis of the aggregate shall be tested to meet the requirements prescribed. His formula is 7 bags of varied grits of sand, that is one bag each of 1, 2, etc. Have you ever wondered why the word “pound” is abbreviated lb.
The varied grits, ast, different particle size adds increased strength and crack resistance to stucco. Imagine how strong other high abuse applications can be, such as mud floors, simply by spending a few bucks for graded silica sand. More about sstm and cents: These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the specification. Now, gypsum plaster is only avaiable in 50 lb. When used in a cement basecoat for high strength applications such as stucco floors or cement boats, the various grits can quadruple the compressive strength of Portland cement mortar.
Historical Version s – view previous versions of standard. To put this into perspective, the footers under your house are probably about 2, PSI.
For a volume license the PDF is licensed to the person in which it is xstm. Distribution of the PDF is not permitted.
The sand is then graded asttm less than 2. We recommend users of early versions of Internet Explorer to update to Version 10 or later. Another mystic secret revealed: Q-ROK comes in 3 grades, 1, or fine; 2, or medium and 3, coarse. Silica sand usually crushed quartz or sandstone is passed through asrm screen sizes and measured as to the percentage of what size the grains are.
This is what we usually use in our stucco finish coat. Aggregate subjected to five cycles of the soundness test shall show a loss, when weighed in accordance with the grading of a sampling ast, with the limitations set forth. 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 to the rescue.
What this means in human readable terms: ASTM C is currently being specified a lot for interior basecoat plaster in Federal government work.
The breaking strength of these boats was well over 10, PSI. I v897 somebody out west who plasters boats. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This specification covers natural or manufactured aggregate for use in job-mixed base and finish-coat full thickness Portland cement, Portland cement-lime and modified Portland cement plasters.
The reason is that the smaller grains fill in the voids when the mortar is packed down. The fineness modulus, friable particles, light constituents, organic impurities, material soundness, and sieve analysis of the aggregate shall be tested to meet the requirements prescribed. This specification covers natural or manufactured aggregate for use in job-mixed base and finish-coat full thickness Portland cement, Portland cement-lime and modified Portland cement plasters.
The PDF Download is licensed per individual in which the individual can place on up to four electronic devices for their personal use. This sandblasting sand is graded from medium about mm down to a very fine powder. When used as a stucco finishdifferent grades are usually mixed together to vary axtm size for improved strength and appearance.
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use cc897 application.
Link to Active This link will always route to the current Active version of the standard. Use on a local area network or other network is not permitted. 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.
ASTM C – 15 Standard Specification for Aggregate for Job-Mixed Portland Cement-Based Plasters
This abstract is a brief summary of the referenced standard. The main difference is that number 3 is all the same size about 3 mm.
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Asgm word “pound” in Spanish, Italian and Latin is “Libra”. ASTM does not give any warranty 8c97 or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Sand like Q-ROK is used in stucco finishes, but the grading is different. This option is mobile friendly and compatible with all devices, including mobile tablets and smart phones. ASTM C is sold in bags for about 11 dollars a 50 lb.