concrete & reinforced concrete
Transcript: Concrete & reinforced concrete Characteristics of concrete Very variable... Concrete Fire safety http://c-est-pas-sorcier.france3.fr/?page=emission&id_article=367 Long service life Composition of concrete http://www.omafra.gov.on.ca/english/engineer/facts/06-023.htm More... Sources http://www.understanding-cement.com/hydration.html http://www.personal.psu.edu/mjb5643/edsgn100/project4/concrete/curing.html Hydration Introduction http://www.ce.memphis.edu/1101/notes/concrete/section_3_properties.html http://www.enggpedia.com/civil-engineering-encyclopedia/dictionary/engineering-materials Dicalcium silicate : Ca2SiO4 -> C2S = Belite composition - Low ratio: higher strength & durability Water/cement ratio Price http://cnx.org/content/m16447/latest/ Reinforced concrete Cement Concrete = strong in compression weak in tension -> reinforcement http://blog.concretecountertopinstitute.com/?Tag=aggregate Prestressed concrete Projet de structure - I, C. DONEUX, 2011, slides University of Louvain Chemical admixture http://www.lafarge.co.uk/wps/portal/uk/2_2_1-Manufacturing_process http://en.wikipedia.org/wiki/Reinforced_concrete Price http://www.understanding-cement.com/hydration.html fine & coarse 3. Hardening & Cooling = "ability of a concrete to fill the form properly without reducing the concrete's quality" Corrosion and long term performance of concrete in NPP and waste facilities, V. L'HOSTIS, F. FOCT, D. FERON, Cadarache, France NUCPERF 2006 http://civil-engineering-center.blogspot.com/ http://www.hedberglandscape.com/Products/Default.aspx?path=|2|6|81 workability 2. Dormancy Abrams cone http://www.icar.utexas.edu/publications/105/105_1.pdf - 5% minor constituents Portland Cement THE solution = steel http://iti.northwestern.edu/cement/monograph/Monograph5_1.html compressive strength : 30 MPa to 131 MPa http://www.understanding-cement.com/milling.html http://matse1.matse.illinois.edu/concrete/prin.html Beton/concrete, Bauhaus-Universität Weimar Fakultät Gestaltung, 2003 http://www.ashireporter.org/photos/thumbnails/2006_12/crack-pattern.gif http://ciks.cbt.nist.gov/~bentz/ci3005bentzreadonly.pdf production http://www.cptechcenter.org/publications/imcp/tech_summaries/4a%20Hydration%20Basics.pdf - 90% clinker (limestone & clay) 1. tensile strength: 300-700 MPa 2. cohesion steel-concrete 3. coefficient of thermal expansion 4. corrosion resistance Concrete curing http://www.ipcc-nggip.iges.or.jp/public/gp/bgp/3_1_Cement_Production.pdf http://enggpedia.com/civil-engineering-encyclopedia/articles/1586-effects-of-different-properties-of-aggregates-on-concrete video http://www.hillbrothers.com/images/kim-l.jpg Mathematical Modeling of creep and shrinkage of concrete, JOHN WILEY & SONS, Illinois, USA, Nortwestern University Evanston, Bazant (editor) Films http://en.wikipedia.org/wiki/Concrete http://texturezine.com/textures/rock-stone/concrete-textures.html http://www.cement.org/basics/concretebasics_concretebasics.asp plasticizers Water http://www.brighthub.com/engineering/civil/articles/52076.aspx 3. Preparation of the cement Tetracalcium aluminoferrite : Ca3Al2O6 -> C3A Energy effiency Tricalcium aluminate : Ca3Al2O6 -> C3A http://seekingalpha.com/article/91539 Post-tensioned concrete Tricalcium Silicate : Ca3SiO5 -> C3S = Alite compressive/tensile strength C3S http://www.tpub.com/content/construction/14043/css/14043_201.htm 1. Mixing http://www.cmt-ltd.co.uk/concrete-and-mortar-testing.php Books ... Properties of the reinforcement 1. High tensile strain 2. Good bond to the concrete 3. Thermal compatibility 4. Durability in the concrete environment http://www.ce.memphis.edu/1101/notes/concrete/concrete_properties_slides.pdf http://www.tlcsupply.com/services_subpages/waste611.html Hydratation 2. Production of the clinker http://iti.northwestern.edu/cement/monograph/Monograph5_1.html C2S http://www.cement.org/tech/cct_curing.asp http://www.aboutcivil.com/Properties-of-concrete-factors-affecting-them.html http://dc149.4shared.com/doc/jWnddyy_/preview.html http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/Physical_Chemical/ThermalExpansion.htm C3A Internet http://en.wikipedia.org/wiki/Cement Aggregates http://training.ce.washington.edu/wsdot/Modules/05_mix_design/05-8_body.htm accelerators & retarders http://training.ce.washington.edu/pgi/Modules/03_materials/03-4_body.htm http://people.ce.gatech.edu/~kk92/hyd07.pdf - high ratio: segregation & shrinkage - 5% calcium sulfate (gypsum) http://training.ce.washington.edu/pgi/Modules/03_materials/03-4_body.htm http://www.theconstructioncivil.com/2009/09/watercement-ratio.html Images http://www.fhwa.dot.gov/pavement/pccp/pubs/06004/index.cfm http://torrentz.eu/99e761891220a820b481e94295b5a01abfd563cf http://www.matweb.com/reference/compressivestrength.aspx Béton, J.-F. CAP, 2007, University of Louvain Manuel de calcul de béton armé, Dr. Ir. P. Boerave, institut Gramme - unité construction 1992 http://howtomakestuff.com/2008/09/07/how-to-make-cement/