Electrical characteristics of dry cement – based composites modified with coconut husk ash nanomaterial

• Autorzy: Robert Ubong Williams , Etuk Sunday Edet , Ekong Sylvester Andrew , Agbasi Okechukwu Ebuka , Ekpenyong Nsikak Edet , Akpan Samuel Sunday , Umana Eme Aniefiok

Identyfikatory

DOI

10.2478/adms-2022-0008

• Języki publikacji: EN

Abstrakty

EN

Coconut husk is generated yearly as waste in large quantities but majorly under-utilized. Also, as a result of high embodied carbon, cement production is one of the largest contributors to construction sector carbon footprint. Since accumulation of unmanaged agro-waste like coconut husk has an increased environmental concern due to its pollution effect, recycling it into sustainable construction materials is a viable solution for future generation. In this study, experiments were performed to investigate the influence of coconut husk ash nanomaterial (CHAN) inclusion on electrical characteristics of plain cement paste (BCP) and mortar (CSM) samples at curing ages of 7 and 28 days. The results showed increase in electrical resistivity, thermal constant, and activation energy with curing duration for heating and cooling cycles of BCP and CSM. With inclusion of CHAN, the developed cement paste (CAP) and mortar (CASM) possessed lower values in all cases compared to their counterparts. Also, during heating at 28 days, both the CAP and CASM exhibited decrease in thermal constant. Though electrical resistance of all the samples varied inversely with temperature, CAP and CASM were found to possess greater potentials to make building structures intrinsically smart. Hence, in addition to solving disposal problems, utilization of coconut husks as described herein could enhance development of safe, inexpensive, and sustainable buildings that have large temperature sensing volume.

Słowa kluczowe

EN

activation energy; building; electrical resistivity; temperature sensing; thermal constant

PL

energia aktywacji; budownictwo; oporność elektryczna; czujnik temperatury

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2022
• Tom: Vol. 22, nr 2(72)
• Strony: 64--77
• Opis fizyczny: Bibliogr. 34 poz., rys., tab., wykr.

Twórcy

autor

Robert Ubong Williams

• Department of Physics, Akwa Ibom State University, Ikot Akpaden, Mkpat Enin, Akwa Ibom State, Nigeria

autor

Etuk Sunday Edet

• Department of Physics, University of Uyo, Uyo, Akwa Ibom State, Nigeria

autor

Ekong Sylvester Andrew

• Department of Physics, Akwa Ibom State University, Ikot Akpaden, Mkpat Enin, Akwa Ibom State, Nigeria

autor

Agbasi Okechukwu Ebuka

• Department of Physics, Michael Okpara University of Agriculture, Umudike, Abia, Nigeria

autor

Ekpenyong Nsikak Edet

• Department of Physics, Akwa Ibom State University, Ikot Akpaden, Mkpat Enin, Akwa Ibom State, Nigeria

autor

Akpan Samuel Sunday

• Department of Physics, Akwa Ibom State University, Ikot Akpaden, Mkpat Enin, Akwa Ibom State, Nigeria

autor

Umana Eme Aniefiok

• Department of Chemistry, Akwa Ibom State University, Ikot Akpaden, Mkpat Enin, Akwa Ibom State, Nigeria

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