New Microsoft Word Document.docx

Procedure for coarse aggregate the aggregate was

Info icon This preview shows pages 6–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Procedure: For coarse aggregate: The aggregate was submerged in water for 24 hours. The aggregate is approximately divided to 4 equal parts (quartering method). One part is taken as a sample. The sample surface is dried by piece of cotton (to become in SSD condition). The mass of sample in SSD condition is measured. The sample is weight when it is put in basket which submerged in water. The sample is weight after put it in oven dry for 24-hours. For fine aggregate:
Image of page 6

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

View Full Document Right Arrow Icon
The aggregate was submerged in water for 24 hours. The aggregate is approximately divided to 4 equal parts (quartering method). One part is taken as a sample. For sand (the sample is dried by the hot plate) but for lenticular aggregate (the sample is dried by piece of cotton). The mass of two types of samples in SSD conditions are measured by the balance which has uncertainty 0.5 The mass of flask which filled in water is measured. The sample is put in the same flask which filled in water. The mass of the flask which contain water and sample is measured. The sample is put in the pan. The mass of the sample is measured after put it in the oven. 6 Data & calculations: For course aggregate: FOLIYEA: Dry mass (A) = 600.5 gm. Saturated surface dry mass (B) = 614.5 gm. Submerged mass(C) = 371.5 gm. Bulk dry specific gravity = A/ (B-C) = 600.5/ (614.5-371.5) = 2.47 Bulk SSD specific gravity = B/ (B-C) =614.5/ (614.5-371.5) = 2.53 Apparent specific gravity = A/ (A-C) = 600.5/ (600.5-371.5) = 2.62 Absorption ratio = ((B-A)/ A) * 100% = ((614.5-600.5)/ 600.5) * 100% = 2.33% HUMOSYIEA: Dry mass (A) = 259.5 gm.
Image of page 7
Saturated surface dry mass (B) = 271.5gm. Submerged mass (C) = 164.5 gm. Bulk dry specific gravity = A/ (B-C) = 259.5/ (271.5-164.5) = 2.43 Bulk SSD specific gravity = B/ (B-C) =271.5/ (271.5-164.5) = 2.54 Apparent specific gravity = A/ (A-C) = 259.5/ (259.5-164.5) = 2.73 Absorption ratio = ((B-A)/ A) * 100% = ((271.5-259.5)/ 259.5) * 100% = 4.62% For fine aggregate: ADASIYEA: Dry mass (A) = 141.38 gm Saturated surface dry mass (B) = 147.76 gm Pycnometer filled with water mass (C) = 1665.2 gm 7 Pycnometer filled with water & sample mass (D) = 1755.66 gm Bulk dry specific gravity = A/ (C+B-D) = 141.38/ (1665.2+147.76-1755.66) = 2.47 Bulk SSD specific gravity = B/ (C+B-D) = 147.76/ (1665.2+147.76-1755.66) = 2.58 Apparent specific gravity = A/ (C+A-D) =141.38/ (1665.2+141.38-1755.66) = 2.78 Absorption ratio = ((B-A)/ A) * 100% = ((147.76-141.38)/ 141.38) * 100% = 4.51% SAND: Dry mass (A) = 165.77 gm Saturated surface dry mass (B) = 166.38 gm
Image of page 8

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

View Full Document Right Arrow Icon
Image of page 9
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