NTeC Carbon Nanotubes - Ricardo Prada Silvy.pdf

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1、NTeC-Carbon Nanotubes to Beneficiate ConcreteADVANCED MATERIALSDr.Ricardo Prada SilvyCTOCHASM Advanced Materials Chasm Advanced MaterialsHQ:Canton,MassachusettsPlant:Norman,OklahomaCurrent Scenario of the Cement Industry2WORLD CEMENT INDUSTRY IS ENCOUNTERING DIFFICULTIES AND EXPERIENCING SIGNIFICANT

2、 TRANSFORMATIONSCEMENTINDUSTRYENVIRONMENTAL CONCERNCement production represents 8%of global CO2 emissions(2.97 billion m.tons from a total 36.8 billion m.tons in 2022).There is a pressing need for cost-effective,large-scale solutions to decarbonize concrete.REGULATORY CHANGESStricter regulations and

3、 standards to limit CO2 require the adoption cleaner technologies to reduce environmental impact.MARKET GROWTHThe global cement market continues to grow,especially in developing countries.Carbon Nanotubes as a Performance Additive3Improved mechanical properties By making the resulting concrete stron

4、ger.-Reduce Clinker-More Efficient Use of ConcreteEnhanced Durability Indicating that the concrete porosity reduced and pore diameters diminished as a consequence of the inclusion of CNTs.Enhanced electrical conductivity and piezo-electric responseApplications-self-heating pavements to prevent ice f

5、ormation,or for embedding sensors in concrete structures(SMART CONCRETE).High thermal conductivityIt is beneficial for applications where heat dissipation or thermal insulation is important,such as in the construction of buildings with energy-efficient designs.CarbonNanotubesBenefits inCementChallen

6、ges associated with the dispersion of CNTs in cement.Makes concrete more viscous,less workable by reducing flowability.Production cost considerations.Concerns related to the environmental and health impacts of nanomaterials handling.SWCNT DWCNTMWCNTResearch is ongoing to address these issues at CHAS