Obtained by using this formula percentage of abrasion

Info icon This preview shows pages 3–6. Sign up to view the full content.

View Full Document Right Arrow Icon
obtained by using this formula: Percentage of abrasion = ((original weight - weight retained on sieve #12)/ original weight) * 100% The value of percentage of abrasion must be less than 45% in order to be accepted for construction use, according to the ASTM standard. Materials & Apparatus Materials: Sample of aggregate that retain in sieve number 12 Instrument: 3
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
los angelos machine. See figure number 2 pans. See figure number 3 balance that its sensitivity is not less than 0.1 from the particle weight. See figure number 4 metal balls which put inside los angelos machine. see figure number 5 sieve number 12.see figure number 6 figure number 1 figure number 2 figure number 3 figure number 4 figure number 5 figure number 6 4
Image of page 4
Procedure : The sample of dry aggregate was obtained and was put in the sieve. The aggregate which retained on the sieve 12.5 and 9.5 was taken. 2500 gram was taken from two types as total 5000 gram. The sample was put in the los angelos machine with 11 metal balls. The machine was calibrated to work just 15 min. (approximately 500 rev). The sample was taken from machine after 15 min. The sample was sieved by the sieve NO.12. The aggregate which retained by sieve NO.12 was weighted by electronic balance.
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern