![\"astm](\"\/img\/vsi6x_crusher.jpg\")
\n*(Includes ACV-related procedures for smaller aggregates.)*<\/p>\n
The Aggregate Crushing Value (ACV) test is a standardized procedure used to determine the resistance of coarse aggregates to crushing under a gradually applied compressive load. The test is specified by ASTM C131\/C131M (for aggregates smaller than 37.5 mm) and ASTM C535 (for larger aggregates, up to 75 mm).<\/p>\n
ASTM C131\/C131M \u2013 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Mach
\n*(Includes ACV-related procedures for smaller aggregates.)*<\/p>\n
Key Steps in the Aggregate Crushing Value Test (General Procedure):
\n1. Sample Preparation:
\n – Dry the aggregate sample and sieve it to obtain the required size fraction (typically 12.5\u201310 mm for ASTM C131).
\n – Fill a cylindrical mold (internal diameter \u2248 152 mm, height \u2248 100\u2013115 mm) in three layers, compacting each layer with a tamping rod.<\/p>\n
2. Loading:
\n – Place the aggregate-filled mold on the compression testing machine.
\n – Apply a gradually increasing load up to 400 kN (\u224840 tons) over 10 minutes.<\/p>\n
3. Crushing & Sieving:
\n – After crushing, remove the sample and sieve it through a 2.36 mm sieve.
\n – Weigh the material passing the sieve (fines) and retained on it.<\/p>\n
4. Calculation of ACV:
\n \\[
\n \\text{ACV (\\%)} = \\left( \\frac{\\text{Mass of fines passing 2.36 mm}}{\\text{Total mass of sample}} \\right) \\times 100
\n \\]
\n A lower ACV indicates stronger, more durable aggregate.<\/p>\n
Acceptable Limits:
\n– For high-quality base courses, ACV should generally be \u226430%.
\n– For sub-base layers, values up to 45% may be acceptable.<\/p>\n
Comparison with Other Standards:
\n– BS 812-110 (British Standard): Similar but uses a different loading rate and mold size.
\n– IS 2386-4 (Indian Standard): Follows a comparable method but specifies slightly different sieves.<\/p>\n
Would you like details on ASTM C535 for larger aggregates or other related tests like the Los Angeles Abrasion Test?<\/p>\n","protected":false},"excerpt":{"rendered":"
The Aggregate Crushing Value (ACV) test is a standardized procedure used to determine the resistance of coarse aggregates to crushing under a gradually applied compressive load. The test is specified by ASTM C131\/C131M (for aggregates smaller than 37.5 mm) and ASTM C535 (for larger aggregates, up to 75 mm). ASTM C131\/C131M \u2013 Standard Test Method […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-9461","post","type-post","status-publish","format-standard","hentry","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/posts\/9461","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/comments?post=9461"}],"version-history":[{"count":0,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/posts\/9461\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/media?parent=9461"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/categories?post=9461"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/tags?post=9461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}