# HW28 - CEE300/TAM324 HW28 Consider a concrete mixture shown...

• Homework Help
• PresidentHackerFinch3687
• 2
• 100% (6) 6 out of 6 people found this document helpful

This preview shows pages 1–2. Sign up to view the full content.

CEE300/TAM324 HW28 Consider a concrete mixture shown in the table below that has been tested to give a 28-day compressive strength of 5330 psi. Constituent Weight (lb) Specific Gravity Cement 560 3.15 Water 260 1.00 Fine Aggregate 1200 2.60 Coarse Aggregate 1900 2.60 Assume that Abram’s Law applies to this material. Abram’s law is summarized as: Recommend a mixture of the SAME BATCH VOLUME and the SAME AMOUNT OF CEMENT and the SAME FA/CA RATIO to produce a 28-day compressive strength of 6000 psi. Assume that all aggregate is SSD and no admixtures or entrained air are in the mix. (Hint: Solve for new lower water amount to achieve higher strength, then increase FA and CA to compensate for the lost volume.) Fill in your answer in the table below, and add additional sheets with your

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

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: volume.) Fill in your answer in the table below, and add additional sheets with your calculations. Constituent Weight (lb) Cement 560 Water 228 Fine Aggregate 1232 Coarse Aggregate 1950 ࠵ " = ± ² &.( ) " 6000 ³´µ = 14000 ³´µ 4 &.( ) " ¶ · = 0.407 ¶ · = ¸¹´´ º» ¶¹¼½¾ ¸¹´´ º» ·½¸½¿¼ = ¸¹´´ º» ¶¹¼½¾ 560 ÀÁ = 0.407 ¸¹´´ º» ¶¹¼½¾ = 228.2 ÀÁ ÂºÀÃ¸½ = 560 3.15 + 260 1 + 1200 2.6 + 1900 2.6 = 1630.1 1630.1 − 560 3.15 − 228 1 = 1224.3 Ä± 2.6 + Å± 2.6 = 1224.3 1200 1900 = Ä± Å± Ä± + Å± = 3183.2 3819840 − 1200Ä± = 1900Ä± Ä± = 1232.2 Å± = 1951.0...
View Full Document

• Fall '07
• Popovics
• Compressive strength, 28-day, coarse aggregate, Abram, D45CD453 D464D44ED461D452D45F

{[ snackBarMessage ]}

### What students are saying

• 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.

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

• 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.

Dana University of Pennsylvania ‘17, Course Hero Intern

• 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.

Jill Tulane University ‘16, Course Hero Intern