Slide 1In This Unit…Course ObjectivesCourse DescriptionTextbookGrading PolicyAttendance & HomeworkWhy Study Materials?Slide 9Why Sustainability?Sustainable MaterialsSpecificationsNew Materials: The Revolution in Building ScienceSlide 14ConcreteGlassGypsum DrywallFabrics & CarpetEnergy / HVACCoatings & PaintsLightingInsulationThe Future …Lecture 1: IntroductionKamalesh Panthi, Ph.D.Department of Construction ManagementEast Carolina UniversityCMGT 2210 - Construction & Civil Materials1In This Unit…SyllabusThe BasicsIntroduction to MaterialsWhy Study MaterialsMaterial SpecificationSustainable MaterialsNew Materials2Course Objectives Identify key material properties important to the successful application of aggregates, asphalt concrete, portland cement concrete, wood and metals to a variety of construction worksPrepare and test representative samples of these materials and their combinations in accordance with standardized procedures.Record, interpret, and report test results in a manner consistent with professional engineering expectations.Specify aggregates, concrete, and asphalt mixtures for typical applications.Identify sustainable and innovative materials in construction and encourage their usage3Course DescriptionLectures:Who: Dr. PanthiWhen: 10:00 -10:50 AM on Mon and Wed Where: RAWL 130Labs:Who: Dr. Panthi and Mr. Andrew Wilson When: 12:00 – 1:50 on Mon/Fri Where: SCITEC149 and Material Yard4TextbookRequiredBasic Construction Materials8th edition, 2011, T.W. Marotta, J.C. Coffey, C.B. LaFleur, C. LaPlante, Pearson, ISBN 978-0135129692Reference (not required)Building Construction: Principles, Materials, and Systems, Madan Mehta, Walter Scarborough, Diane Armpriest- 2009 update. 5Grading PolicyAssignment 20%Labs 15%Quiz 15%Mid-term Exam 15%Project Work/Presentation 15%Final Exam 20%-----------------------------------------------------Total 100%6Attendance & HomeworkAttendanceUp to 75% attendance requiredInform in advance if you have acceptable excusesHomeworkUsually 7 days after assignedEach day of delay after that will incur 20% penalty of the max possible grade for that HW7Why Study Materials?89Source: Cochran and Townsend, 2010 US Construction Material ConsumptionWhy Sustainability?10Sustainability is the “…meeting the needs of the present generation without compromisingthe ability of future generations to meet their needs.”Sustainable MaterialsCement production accounts for about 5% of CO2 emissionsShare of complex composite cements using a wide variety of substitute materials is increasingSustainable Design & Construction Actions:11Light Colored and CoolQuietSurface TexturesFuel EconomyRenewal and RecyclingLowerEnergy Footprint{Less Fuel Consumed During ConstructionIndustrial By-Product UseImproved Stormwater QualityStructural Capacity{Adapted from Wathne, ACPASpecifications12American Society for Testing and Materials (ASTM)ASTM standards are commonly for materials. For example, for Cement, ASTM issues their Standard C150. Their standards are recognized as industry’s minimum acceptable standards.American National Standards Institute (ANSI)ANSI are commonly involved with industrial productsUS Bureau of Standards (USBS)USBS provide standards for nationally used weights and measuresNew Materials: The Revolution in Building Science1314SteelNanocomposite steel is available & stronger (per ASTM) Withstands temperatures as low as -140F Increased plasticityFree of corrosion-causing carbide pathsResults: reduced amount of steelSimplified placement of structural concrete20 to 40% savings15ConcreteTranslucent concrete? Cool idea by Dutch Architect, Rem Koolhaas16GlassCan block UV & glare Self-cleaning glass coated (titanium dioxide coating breaks down organic matter)17Gypsum DrywallNano-drywall is lighter, stronger and water resistant18Fabrics & CarpetNano-treatments are used on commercial fabrics Color-fast, stain proof and dirt proofNaturally hydrophobic, no mold or mildew19Energy / HVACSolar cells infused with nano-technology are thin, flexible and come in rolls so they can be applied as roofing material20Coatings & PaintsNano particles enhance physical and aesthetic qualitiesHard, durable finishExcellent water resistanceScrub-abilityStain blocking and other properties21LEDs (point source)& OLEDs (sheet)40% of commercial energy goes to lighting LED is most efficient, sustainable solution10X more efficient than incandescent50,000 - 100,000 hours (vs 10,000)Lighting"No other lighting technology offers so much potential to save energy and enhance the quality of buildings" U.S. Dept. of Energy22InsulationAerogel, a translucent thermal-acoustic insulatorLooks like frozen smokeBest insulating solid in the worldWeighs only 90 grams per literExtremely flexibleblankets, beads, sheetsThe new “plastic”**Not really—it’s amorphous silica (sand)23“Because of nanotechnology, we will see more change in our civilization in the next thirty years than we did during all of the 20th century”- M. Roco, National Science FoundationThe Future