Service life and life cycle assessment of reinforced concrete systems with limestone calcined clay cement (LC3)

This paper presents data on the chloride diffusion coefficient (Dcl), ageing coefficient (m) and chloride threshold (Clth) 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...

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Bibliographic Details
Published in:Cement and concrete research 2019-04, Vol.118, p.111-119
Main Authors: Pillai, Radhakrishna G., Gettu, Ravindra, Santhanam, Manu, Rengaraju, Sripriya, Dhandapani, Yuvaraj, Rathnarajan, Sundar, Basavaraj, Anusha S.
Format: Article
Language:English
Subjects:
Alternate binders
Bridge piers
Carbon dioxide
Cement reinforcements
Chloride diffusion
CO2 emissions
Concrete
Corrosion
Diffusion coefficient
Environmental impact
Girder bridges
Life cycle assessment
Life cycles
Limestone
Pulverized fuel ash
Pulverized fuels
Reinforced concrete
Roasting
Service life
Service life assessment
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Summary:This paper presents data on the chloride diffusion coefficient (Dcl), ageing coefficient (m) and chloride threshold (Clth) 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.
ISSN:0008-8846
1873-3948
DOI:10.1016/j.cemconres.2018.11.019