Engineering in Practice
Date, time & venue
15th June 2022 (Wednesday), 17:00-18:00, Seminar via Zoom Meeting
HKIE Civil Division and The Hong Kong Polytechnic University
Currently, Hong Kong purely relies on landfills for disposing the city’s waste. Given that land is scarce in Hong Kong, the government is building an Integrated Waste Management Facilities (IWMF) to address this imminent waste problem in a holistic manner, and a 3000 ton/d moving grate incinerator is the most critical component of it. However, incineration is not an end of pipe MSW treatment method, as about 600 tons/d of incineration bottom ash (IBA) is expected to be generated when IWMF Phase 1 starts commissioning in 2025. How to utilize this residue becomes a new challenge. A low-carbon cement was synthesized primarily from municipal solid waste incineration (MSWI) residues at a low clinkering temperature. The resulting clinker (low-carbon cement) demonstrated latent hydraulicity when reacted with water and strong carbonation reactivity when reacted with carbon dioxide. Under carbonation curing, the binder performance was benched against control specimens prepared from ordinary Portland cement (OPC), while permanently storing considerable amount of CO2 in the paste matrix. The synthesis of low-carbon cement, and its use as a carbon-sequestering alternative binder in concrete, holds reasonable merit for consideration as an adaptable cleaner production to improve current-day MSW incineration practice.
*Please complete the on-line registration at https://us02web.zoom.us/webinar/register/WN_7wxLlCCiSBWk6lKWwb5y_g.
Free of Charge.
Dr Shipeng Zhang
Dr. Shipeng Zhang is a Research Assistant Professor at Hong Kong Polytechnic University. He obtained his BSc (2013) in Civil Engineering from the University of Minnesota, MEng (2016) and Ph.D. (2020) in Civil Engineering from McGill University. Prior to joining PolyU, he worked as a postdoctoral fellow at McGill University from 2020 to 2021. Dr. Zhang’s main research interests include development and characterization of sustainable construction materials, waste recycling and management, carbon sequestration in concrete, and concrete durability assessment.
Registration & Enquiries
The number of participants is limited to 500 on a first-come-first served basis. Priority will be given to members of the Civil Division.
Email registration will not be accepted. Successful applicants will be informed by email and provided a link to the Zoom Meeting at the designated time slot. Participants need to sign in using the membership no. and name entered at the time of registration. A CPD certificate will be issued 3 weeks after the seminar based on this membership no. and name.
For enquiries, please contact Mr. Vincent Tam via email: firstname.lastname@example.org.
Copyright ©2018 The Hong Kong Institution of Engineers. All rights reserved.