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Concrete Presentation

Transcript: Concrete is versatile and adaptable, has many possibilities and if used correctly can be an environmentally friendly material. CONCRETE What is Concrete? What is Concrete? A heavy building material made from a mixture of broken stone or gravel, sand, cement, and water, that can be spread or poured into molds and that forms a stone like mass upon hardening. “Concrete in architecture.” David Report, 8 Feb. 2013, davidreport.com/201302/con/. Strong and Durable Versatile Low maintenance Affordable Fire-resistant Acts as a thermal mass Locally produced and used Reflective Low lifecycle CO2 emissions Properties of Concrete Properties of Concrete How is Concrete made? How is Concrete made? Materials: Concrete is made from water, sand, aggregates and cement. Step One: Materials are combined in a mixer that utilizes a revolving drum to keep the ingredients constantly moving. Concrete can also be mixed by hand in much smaller quantities. Step Two: It is then poured from the mixer into its mold, where it cures and forms a solid, durable material. http://ieltsliz.com/ielts-diagram-model-answer-score-9/ Materials Materials Photo Courtesy of: Portland Cement Association Aggregate is a critical component to concrete. It is a mix of ground up stones, gravel, slag, recycled concrete and geosynthetic aggregates. Aggregates of various mixtures and sizes are used to keep the concrete durable, reduce shrinkage and change the properties of the finished concrete. Aggregate Aggregate http://www.greenspec.co.uk/building-design/aggregates-for-concrete/ Refers to size of aggregate Determines the properties of the concrete Poorly graded concrete needs more cement to fill in the gaps and is less economical Aggregate Gradation Aggregate Gradation Photo Courtesy of: Concrete Countertop Institute Contrary to common belief, concrete and cement are not the same material; cement is an ingredient within the concrete. Cement acts as a binding agent within the concrete. The most commonly used cement is Portland cement, which is created by the heating and grinding of lime, silica, iron and alumina. Cement Cement http://www.lafargeholcim.com/cement-solutions Water plays a very important role in concrete. It determines the strength and placeability of the mixture. Less water=higher strength, but more difficult to place More water=less strength, but easier to place The amount of water added often varies due to the concrete's use. Water Water https://www.ioes.ucla.edu/event/spotlight-sustainability-preparing-company-water-resiliency/ Sand that is used in concrete is typically quartz sand, which is found in forests and river beds. The tearing up of forests for this sand has caused great environmental issues. Sand is used in many products and is currently in a state of shortage. Countries are banning its export and forming black markets for its trade. One solution would be to replace sand with ground up rock, but it is a highly expensive and poor quality option. Sand Sand https://www.indiamart.com/memon-minerals-gandhinagar/ Admixtures can modify the properties of hardened concrete. Admixtures can be anything from pigments, expansive agents, and pumping aids. They usually come in liquid form and can be added to the concrete mix. There are 5 main classes of chemical admixtures: air-entraining, water-reducing, retarding, accelerating, and plasticizers. Admixtures Admixtures Uses of Concrete Uses of Concrete Roman Concrete: The Romans mixed lime and volcanic ash together to form a mortar. How did they do it: Hand mixed wet lime with volcanic ash in a mortar box. Little water was used to create a nearly dry mixture. This composition was carried to the job site in baskets and placed over a prepared layer of rock pieces. Mortar was then pounded into the rock pieces. https://www.youtube.com/watch?v=tOhAfaFboNU Historic Historic One of the greatest examples of the strength of Roman concrete is the Pantheon built in 27AD. Case Study Case Study Shawn, Norris “Pantheon (#3).” Rome Across Europe, 14 Mar. 2017, www.romeacrosseurope.com/?p=7047#sthash.2c8ckyqz.dpbs. Typical uses of concrete today: Buildings: foundations flooring walls countertops stairs gutter applications columns patios Public Transportation: driveways pavement curbs/sidewalks parking lots Other Uses: drainage piping swimming pools bridges dams skyscrapers Current Current Jubilee Church-Rome, Italy designed by American architect Richard Meier Meier won a contest against Frank Gehry, Tadao Ando and others for the design 27,000 square foot church constructed of white, precast concrete walls and glass distinct feature is three curved walls, inspired by sails of a ship Case Study Case Study http://www.richardmeier.com/?projects=jubilee-church-2 http://homesthetics.net/iconic-modern-architecture-jubilee-church-in-rome-by-richard-meier-and-partners/ Pulitzer Arts Foundation-St. Louis, Missouri designed by Japanese architect Tadao Ando first public building designed by Ando in North America showcases Ando's

Background Presentation

Transcript: 14th Week Consulting interns can be expensive Time and Money Personal Experience Preliminary Design Stage NFPA 101 and NFPA 13 New and Existing Education, Business, and Mercantile Definition of Project This app would be used to provide interns and recent graduates with an outline of guidelines for how to design and review designs of specific occupancies. With the given time frame, I will be writing the information that will go into the app Begin parametric study: Speak with my mentor and Jason to understand more about what critical variables I could concentrate on for this app. Choose those parameters and begin my study Gather information from NFPA 101 and NFPA 13 for new and existing education, business, and mercantile occupancies. By: Breanne Thompson Next Steps (Continued) Finish preparing for Draft of Analysis Pull together and discuss results of project Draw my conclusions and state future work needed Turn in Final Paper! 10th and 11th Week Turn in my parametric study Begin draft of analysis Map out the process of the app for the key elements 15th Week References Next Steps 7th Week Prepare for Final Presentation Summarize my draft of analysis into presentation Work on how to incorporate a live demonstration for my presentation App Development Background Information 8th-9th Week Continuous Process Objective-C for Apple products Java for Android products 6 months of studying Places to Learn: Codecademy, iOS Dev Center, Android Developers Training Hire App Developer will cost thousands Prepare Final Paper Dive into Shark Tank! 1. http://lifehacker.com/5401954/programmer-101-teach-yourself-how-to-code 2. http://www.bluecloudsolutions.com/blog/cost-develop-app/ 6th Week Background Presentation 12th-13th Week

Background Presentation

Transcript: Real action and accountability Amnesty International Non-state actors/ Rebel Groups?? ...and what about men?? ignoring male rape victims? would rape exist without a man? Weapons of War: Rape UN as an Arena - NGO's - Discussion and dialogue Arena Instrument Actor Critical Thinking Weapons of War: Rape UN as an instrument UNSC Resolution 1820 (2008) UN as an Actor - UN Action Against Sexual Violence in Conflict Weapons of War: Rape Problems with 1820 "Roles and Functions of International Organizations" "Sexual violence, when used as a tactic of war in order to deliberately target civilians or as a part of a widespread or systematic attack against civilian populations, can significantly exacerbate situations of armed conflict and may impede the restoration of international peace and security… effective steps to prevent and respond to such acts of sexual violence can significantly contribute to the maintenance of international peace and security" (UNSC Resolution 1820, p. 2)" http://www.stoprapenow.org/uploads/advocacyresources/1282164625.pdf Background Presentation- Kristin Mann Weapons of War: Rape Brief Insight - used to manipulate social control - destabilize communities - weaken ethnic groups and identities Examples: - Sudanese Militia - Rwanda Genocide - DRC Critical Thinking http://www.womenundersiegeproject.org/blog/entry/the-need-for-numbers-on-rape-in-warand-why-theyre-nearly-impossible-to-get Critical Thinking Increased Data Collection by international organizations - determine humanitarian responses - ensures justice and reparation - provides recognition and dignity

Concrete Presentation

Transcript: 6500 B.C. Created underground waterproof containers with hydraulic lime which is a type of cement that hardens underwater Structure did not allow any water to leak out, nor did it allow any particles to leak into the water contributed to their survival in the desert for so long. Imperialism (late 1800s- early 1900s) Britain wanted India for spices/other reasons Rest stop at southern most tip of Africa Suez Canal cut travel distance down 4,300 miles linked Red Sea an the Gulf of Suez with the Mediterranean 3000 B.C. Influenced by Egyptians, used similar concrete to build Great Wall of China helped to ensure peace throughout China; established a new pattern of defense for future generations to come Works Cited Li, Xiaobing, and Michael Molina. "Suez Canal." World Geography: Understanding a Changing World, ABC-CLIO, 2018, worldgeography.abc-clio.com/Search/Display/ 2064442. Accessed. 2018. Longmead, Donald, and Christine Garnaut. "Panama Canal." World Geography: Understanding a Changing World, ABC-CLIO, 2018, worldgeography.abc-clio.com/ Search/Display/130045. Accessed. 2018. Sui, Tongbo, and Per Jahren. History Of Concrete: A Very Old And Modern Material. SG, World Scientific Publishing Company. The History of Concrete. 2006, www.nachi.org/history-of-concrete.htm. Accessed 2018. The Secrets of Ancient Roman Concrete. 21 June 2013, www.history.com/news/ the-secrets-of-ancient-roman-concrete. Accessed 2018. Thirsty Concrete. 28 Sept. 2015, www.businessinsider.com/ how-magical-concrete-absorbs-water-2015-9. Accessed 2018. (Sui) 3000 B.C. Mud mixed with straw to build houses Used a form of cement that had included gypsum, from deposits in the earth, and lime mortars helped the Egyptians build the Great Pyramids of Giza Picked up by the U.S. in 1904 48 miles long Cut boat trip around South America Linked Atlantic and Pacific Oceans Allows ships of commercial goods to save time and money lower consumer prices for consumers everywhere Concrete is the greatest human discovery. Used clay bricks as concrete and stacking stones to build houses Entirely for cosmetic purposes no support Pantheon architecture miracle due to its reinforced dome used thicker walls with different cement prevented destruction from earthquakes (Suez) (InterNACHI) (InterNACHI) (The Secrets of Ancient Roman Concrete)

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