# Discussion: Mix Design Report

## Discussion: Mix Design Report

Discussion: Mix Design Report ORDER NOW FOR CUSTOMIZED AND ORIGINAL ESSAY PAPERS ON Discussion: Mix Design Report I need you to write report about the mix design. You MUST follow the lab manual to understand the way that I want you to do it. Also you MUST take all the information such as Abstract, Introduction , Background, Methods and Procedures, Results and Discussion, Conclusions, References and Appendix from the lab manual or the power point. and the data in the Word File. Discussion: Mix Design Report attachment_1 attachment_2 attachment_3 attachment_4 CE 206 Spring 2018 Section A2 (B) Concrete Mix Designs January 25, 2018 Required yield = 0.023 yd3 For a 1 cubic yard mix design, all groups used 360 lbs water 1701 lbs coarse aggregate (maximum size = 3/4) Group Target strength Water/cement ratio Cement Sand Slump 14 day Peak load (lbs) Break geometry 14 day Peak load (lbs) Break geometry 14 day Peak load (lbs) Break geometry 28 day Peak load (lbs) Break geometry 28 day Peak load (lbs) Break geometry 28 day Peak load (lbs) Break geometry B-1 5000 psi 0.48 750 lbs 1104 lbs 3 3/4 B-2 5500 psi 0.445 809 lbs 1055 lbs 6 3/4 B-3 6000 psi 0.41 878 lbs 997 lbs 2 1/4 85955 89315 98870 Shear cone Cone splitting Shear cone 75580 95440 98050 Columnar Columnar Columnar 90590 92420 100995 Columnar Local shear wedge Shear cone 96370 98875 102325 90555 68875 103925 97000 94395 104835 Portland Cement Concrete Mix Design A Real Definition of Portland Cement Concrete A mixture of: Portland Cement Water Air Coarse Aggregate Fine Aggregate Cement and water combine, changing from a moist-plastic consistency to a strong, durable rock-like construction material by means of a chemical reaction called hydration Concrete exists in 3 states 1. Plastic 2. Curing 3. Hardened Concrete Mix Design is, determination of the proportion of the concrete ingredients: (Cement, Water, Fine Aggregate, Coarse Aggregate ++) Possessing Workability (slump) Compressive Strength (w/c ratio) Durability (w/c ratio) Economic Reduce Cost (by use largest gravel possible for the job) Maximize strength good durability (W/cmin No control bleeding & No segregation) (well graded aggregates emin & segregationmin) Water-to-Cement Ratio w/c is the most important parameter with regards to concrete quality Theoretically, about 0.24 is required for complete hydration Practically, the useful limit is around 0.33 Reducing the water for a given amount of cement will densify the hydrated cement paste This increases strength and reduces permeability But makes the concrete more difficult to work less Workability. ASTM C 143 Standard Test Method for Slump of Hydraulic Cement Concrete Slump ACI Standard Mix Design Method The standard ACI mix design procedure can be divided up into 8 basic steps: 1. 2. 3. 4. 5. 6. 7. 8. Choice of slump Maximum aggregate size selection Mixing water and air content selection Water-cement ratio Cement content Coarse aggregate content Fine aggregate content Adjustments for aggregate moisture Step #1: Select Slump Table 6.3.1: Step #2: Max. Agg. Size Check DEFINITION: Nominal maximum aggregate size is the largest sieve that retains some of the aggregate particles. ACI Limits: 1/3 of the slab depth 3/4 of the minimum clear space between bars/form 1/5 minimum dimension of nonreinforced member Aggregate larger than these dimensions may be difficult to consolidate and compact resulting in a honeycombed structure or large air pockets. Step #3: Determine Mixing Water and Air Content Table 6.3.3: Step #4: Select W/C Ratio Table 6.3.4(a): Step #5: Cement Content The calculated cement amount is based on the selected mixing water content and watercement ratio. W/C= Wt. of Water Wt. of Cement Step #6: Coarse Agg. Content Table 6.3.6: Step #7: Fine Agg. Content Step #8: Batch Weight & Water Adjustment Aggregate weights. Aggregate volumes are calculated based on oven dry unit weights, but aggregate is batched in the field by actual weight. Any moisture in the stockpiled aggregate will increase its weight. Without correcting for this, the batched aggregate volumes will be incorrect. Discussion: Mix Design Report Amount of mixing water. If the batched aggregate is anything but saturated surface dry it will absorb water (if dry) or give up water (if wet) to the cement paste. This causes a net change in the amount of water available in the mix and must be compensated for by adjusting the amount of mixing water added. Information About Our Materials Coarse aggregate we are using: nominal maximum size = 3/4 inch dry-rodded weight = 100 lb/ft3 specific gravity = 2.68 moisture content = 1 % absorption = 0.5 % Fine aggregate: fineness modulus = 2.70 specific gravity = 2.64 moisture content = 5~8 % absorption = 0.7 % Step #1: Select Slump Table 6.3.1: Step #2: Max. Agg. Size Check DEFINITION: Nominal maximum aggregate size is the largest sieve that retains some of the aggregate particles. ACI Limits: 1/3 of the slab depth 3/4 of the minimum clear space 3/4 inch between bars/form 1/5 minimum dimension of nonreinforced member Aggregate larger than these dimensions may be difficult to consolidate and compact resulting in a honeycombed structure or large air pockets. Step #3: Determine Mixing Water and Air Content Table 6.3.3: Step #3: Determine Mixing Water and Air Content Weight of Water = 340 lbs/yd3 Volume of Water = 340 lbs/yd3 = 5.44 ft3 62.4 lbs/ft3 Volume of Water = 5.44 ft3 per cubic yard of concrete Step #4: Select W/C Ratio Table 6.3.4(a): Step #5: Cement Content W/C= Wt. of Water Wt. of Cement Wt. of Cement = 340 lbs/yd3 .48 =708 lbs/yd3 Volume of Cement = 708.33 lbs/yd3 3.15 x 62.4 lbs/ft3 GSC Cement Volume of Cement = 3. 60 ft3 per cubic yard of concrete Step #6: Coarse Agg. Content Table 6.3.6: 2.7 Step #6: Coarse Agg. Content Weight (Dry) =.63 x 27 ft3/yd3 x 100 lb/ft3 = 1,701 lbs Dry Rodded Unit Wt of Stone Volume = 1,701 lbs = 10.17 ft3 2.68 x 62.4 lbs/ft3 GS Stone Step #7: Fine Agg. Content = 0.02×27 ft3 27 ft3 = Yd3 of Concrete 5.44 ft3 0.54 ft3 3.6 ft3 10.17 ft3 7.24 ft3 Wt of Sand(Dry) = 7.24 ft3 x 2.64 x 62.4 lbs/ft3 = 1,194.1 lbs. GS Sand Calculate the volume you need for 6 cylinders (4x8) and slump test. Factor the volume by 1.15 to cover the concrete lose. Every team design for certain compressive strength. Final Batch Wts.= Volume x (Wts. of 1 Cubic Yard) Diagnostic accuracy of multiparametric MRI and TRUS biopsy in prostate cancer JOHN GABLE Diagnosis of Prostate Cancer ? Solid organ cancers are diagnosed with imaging ? Prostate cancer diagnosis requires TRUS-biopsy in men with elevated serum prostate specific antigen ? Unnecessary biopsies Side effects of TRUS-biopsy ? Bleeding, pain, infection ? Life-threatening sepsis ? Inaccuracy ? Insignificant cancers detected ? Significant cancers missed MP-MRI ? ? Multi-parametric magnetic resonance imaging (MP-MRI) used as a triage test may: ? Reduce unnecessary biopsy ? Improve diagnostic accuracy MP-MRI provides prostate characteristics ? ? Volume, cellularity, vascularity Tends to detect higher risk disease, overlook low risk disease Procedure of Study ? Around 576 men tested ? MP-MRI test ? TRUS-biopsy ? TPM-biopsy as reference test Results MRI Results TRUS Sensitivity & Specificity Test Conclusion ? MP-MRI recommended to all men with elevated serum PSA before biopsy ? Reduce unnecessary biopsies of men who are at a low risk of having significant cancer (27%) ? Reduce diagnosis of insignificant disease and improve detection of clinically significant cancers (5%) ? TRUS-biopsy poor diagnostic test Future ? ? As engineers it is important to explore new ideas and ways to solve problems and better the technology used today ? New system designDiscussion: Mix Design Report ? New methods from existing technologies MP-MRI allows diagnosis from characteristics of prostate (volume etc.) Thank You! Questions? Widener University Department of Civil Engineering CE 206 Structures and Materials Laboratory Spring 2018 Syllabus CE 206A2 & A3 (Thursday Labs) Instructors: Dr. Nazieh Jlilati (lecture & A2 instructor) Office: Room 349C Kirkbride Hall Email: [email protected] Dr. Mohammad Falamarz (A3 instructor) Office: Room 265 Kirkbride Hall Email: [email protected] Required Texts: A Guide to Writing as an Engineer by Beer & McMurrey, Wiley Publishing, either 3rd or 4th edition is acceptable. CE 206 Lab Manual, Widener University Civil Engineering Department, Spring 2018. (Available through the shared files on the Campus Cruiser course web page). Co-requisites: ENGR 323 Mechanics of Deformable Bodies Course Purpose: CE 206 is a writing enriched course that provides students an opportunity to conduct laboratories and participate in a group design-build-test project in Civil Engineering topics including engineering mechanics, construction materials, and structures. The labs and projects give students hands-on experiments that demonstrate theoretical topics covered in previous/concurrent engineering courses and provide an introduction to topics that will be covered in future courses. The laboratories emphasize measurement techniques, analysis and interpretation of data, and technical writing in the form of lab reports and executive summaries. The design-build-test project gives students an opportunity to work in teams and present their work in an oral presentation and group report. Course Objectives: The Structures and Materials Laboratory is intended to (1) supplement theoretical knowledge in CE structures and construction materials; (2) provide exposure to basic measurement and experimental techniques to examine properties of materials and structural components; (3) develop the ability for planning and design of projects; (4) familiarize the student with basic statistics for analysis of experimental data; (5) develop written and oral communication skills; and (6) provide exposure to the interpersonal relationships involved in group work. Upon successful completion of the course, students will be able to: 1. Conduct experiments to measure properties of materials and systems for civil engineering applications. 2. Analyze data for error analyses, comparison of experimental and theoretical results, and application of regression analyses. 3. Prepare engineering laboratory reports using appropriate technical writing methods. 4. Design, conduct, and present an independent project that requires evaluation of alternative strategies for achieving goals. Program Outcomes: This course supports the following CE Program Outcomes: b. an ability to design and conduct experiments, and to analyze and interpret data in several civil engineering areas; c. an ability to design a civil engineering system, component, or process to meet desired needs within realistic constraints; d. an ability to function on multidisciplinary teams; g. an ability to communicate effectively; k. an ability to use the techniques, skills, and modern engineering tools necessary for civil engineering practice; Grading: The +/- system will be used for course grades. Labs and Lab Reports: 70% (6 lab reports @ 10% each, a technical writing assignment @5%, and participation in 2 field trips and lab cleanup day @ 5%) of the course grade will be based on participation in laboratory experiments and activities (field trips and lab cleanup) and preparation of lab reports (both writing and editing). Discussion: Mix Design Report Lab reports are usually due one week after the completion of the lab. Lab reports handed in after the due date but not more than one week late will receive a maximum score of 80%. LAB REPORTS WILL NOT BE ACCEPTED MORE THAN ONE WEEK AFTER THE DUE DATE. A LAB REPORT MUST BE HANDED IN TO RECEIVE A NON-ZERO GRADE FOR THE LAB. Two writing assignments will be edited by the instructors and handed back to students to revise and resubmit so that students can learn to edit and improve their technical writing. The first lab report submitted must be revised and resubmitted by every student. A second writing assignment of the students choice may be revised and resubmitted; the final grade for the lab will be based on the resubmitted lab report. The original graded report MUST be handed in to receive full credit for the lab. Students performance and preparation for the lab will be assessed as part of the lab grade. Students are expected to be familiar with the objectives and lab procedures prior to the lab. Lab procedures will be discussed in the lecture period prior to the lab, with any changes or deviations from the lab manual explained by the instructor. Design-Build-Test Project: 20% of the course grade will be based on the design, conduct, and presentation (oral presentation and written group project report) of a group design-build-test (DBT) project. This year the EDPACI Concrete Beam student competition will be the DBT project. Lecture Assignments: 10% of the course grade will be based on homework assignments from the weekly lectures. Attendance: Attendance and participation is required in order to receive a grade for each lab, unless prior notification and arrangements are made with the instructor. All unforeseen emergencies will be dealt with on a case by case basis. Instructors will NOT routinely excuse students from lab. Documentation of ANY planned or emergency absence will be required. ALL LABS ARE HELD IN STRUCTURES LAB AT WELLNESS CENTER UNLESS NOTED OTHERWISE Week Wednesday Lecture Thursday Lab 1: Jan. 17~18 Course Expectations Technical Writing Orientation in KH 123 Ethics, documentation & accessing information: Chapters 8 & 11 in text 2: Jan. 24~25 Concrete Mix Design Lab #1 Concrete Mixing Assignment Due Technical Writing Assignment 3:Jan.31~Feb.1 Experimental Statistics & Technical Writing Lab #2 Uniaxial Tension Tests Graphics & Equations: Chapters 5, 6, & 7 in text (Room: KH 138) 4: Feb. 7~8 Truss Lab Calculations Lab #3 Trusses/Hookes Law & 14 Day Concrete (Room: KH 138) Tension Test Lab #2 Report 5: Feb. 14~15 Design-Build-Test (DBT) Project DBT Design Trusses Lab #3 Executive Summary 6: Feb. 21~22 Project Management Skills 28 Day Concrete & DBT Build DBT Project Proposal Due MONDAY DBT Project Pour Concrete Lab #1 Report 7:Feb.28~Mar.1 Self Editing SPRING BREAK 8: Mar. 14~15 Design-Build-Test (DBT) Calculations Field Trip #1 Revised Tension Test Lab #2 Report 9: Mar. 21~22 Wood Beams Calculation Lab #4 Wood Beams DBT Predictions 10: Mar. 28~29 Oral Presentations (Chapter 9 in text) DBT Project Test Wood Beams Lab #4 Executive Summary 11: Apr. 4~5 Lab #5 Beam Deflections DBT GROUP Report * 12: Apr. 11~12 Project Management Skills DBT Project Presentations DBT Presentation 13: Apr. 18~19 Asphalt Design Lab #6 Asphalt Lab #5 Beam Deflections Executive Summary 14: Apr. 25~26 Peer Editing Field Trip #2 Asphalt Lab #6 Report 15: May 2~3 Lab Cleanup OPTIONAL Revised Assignment Beam Deflection Calculations Presentation Evaluations Get a 10 % discount on an order above $ 100 Use the following coupon code : NURSING10

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