Journal
CEMENT AND CONCRETE RESEARCH
Volume 118, Issue -, Pages 111-119Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cemconres.2018.11.019
Keywords
Concrete; Alternate binders; Chloride diffusion; Corrosion; Service life; Life-cycle assessment; CO2 emissions
Funding
- Swiss Agency for Development and Cooperation through the Climate Change program
- Department of Science and Technology (DST), Government of India
- Ministry of Human Resource Development, Government of India
- Department of Civil Engineering, Indian Institute of Technology Madras, Chennai
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This paper presents data on the chloride diffusion coefficient (D-cl), ageing coefficient (m) and chloride threshold (Cl-th) related to seven concrete mixes (four M35 and three M50) with OPC, OPC + PFA (pulverised fuel ash) and limestone-calcined clay cement (LC3). Using these, the service lives of a typical bridge pier and girder with the PFA and LC3 concrete were found to be much higher than those with OPC concrete of similar strength. From life cycle assessment, the CO2 footprint of PFA and LC3 concrete were found to be significantly lower than those of OPC concrete of similar strength. Further, the CO2 emissions per unit of concrete per year of estimated service life, as a combined indicator of service life and carbon footprint, are similar for concrete with PFA and LC3, which are much lower than that with OPC.
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