Boosting Portland cement-free composite performance via alkali-activation and reinforcement with pre-treated functionalised wheat straw

dc.contributor.authorChougan, Mehdi
dc.contributor.authorGhaffar, Seyed Hamidreza
dc.contributor.authorSikora, Pawel
dc.contributor.authorMijowska, Ewa
dc.contributor.authorKukułka, Wojciech
dc.contributor.authorStephan, Dietmar
dc.date.accessioned2022-05-23T08:34:06Z
dc.date.available2022-05-23T08:34:06Z
dc.date.issued2022-02-09
dc.description.abstractUtilising wheat straw reinforced OPC-free composites in the construction industry requires efficient, eco-friendly pre-treatment coupled with surface functionalisation methods to turn it into a high-performance material. Herein, alkali-activated material (AAM) was used as an OPC-free matrix, while eco-friendly hybrid pre-treatment and surface functionalisations were applied to mitigate the surface quality deficiencies of wheat straw and improve its compatibility with low-carbon binders. Wheat straw particles were subjected to a mild physical pre-treatment (hot-water followed by steam) and surface functionalisation using attapulgite nanoclay and graphene nanoplatelets to improve their capacity as an effective reinforcing material in AAM. Comprehensive characterisation verified successful pre-treatment and surface functionalisation, which led to the improved interfacial bond between wheat straw and AAM. The best results were obtained for the AAM samples reinforced with pre-treated straw that was functionalised with attapulgite nanoclay (i.e., H+S-AT), in which the volume of permeable voids decreased by 18%, while compressive and flexural strength at 90 d increased by 41% and 27%, respectively, compared to the control sample. However, the effect on the thermal properties of the resulted composites was not significant.en
dc.identifier.eissn1872-633X
dc.identifier.issn0926-6690
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16979
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-15758
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.subject.otheralkali-activated materialsen
dc.subject.otherwheat strawen
dc.subject.otherattapulgite nanoclayen
dc.subject.othergraphene nanoplateletsen
dc.subject.otherpre-treatmenten
dc.subject.othersurface functionalisationen
dc.titleBoosting Portland cement-free composite performance via alkali-activation and reinforcement with pre-treated functionalised wheat strawen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber114648en
dcterms.bibliographicCitation.doi10.1016/j.indcrop.2022.114648en
dcterms.bibliographicCitation.journaltitleIndustrial Crops and Productsen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceAmsterdamen
dcterms.bibliographicCitation.volume178en
tub.accessrights.dnbfreeen
tub.affiliationFak. 6 Planen Bauen Umwelt::Inst. Bauingenieurwesen::FG Baustoffe und Bauchemiede
tub.affiliation.facultyFak. 6 Planen Bauen Umweltde
tub.affiliation.groupFG Baustoffe und Bauchemiede
tub.affiliation.instituteInst. Bauingenieurwesende
tub.publisher.universityorinstitutionTechnische Universität Berlinen

Files

Original bundle
Now showing 1 - 1 of 1
Loading…
Thumbnail Image
Name:
Chougan_etal_Boosting_2022.pdf
Size:
9.75 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
4.86 KB
Format:
Item-specific license agreed upon to submission
Description:

Collections