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Book Chapter: Using Limestone Calcined Clay to Improve Tensile Performance and Greenness of High-Tensile Strength Strain-Hardening Cementitious Composites (SHCC)

TitleUsing Limestone Calcined Clay to Improve Tensile Performance and Greenness of High-Tensile Strength Strain-Hardening Cementitious Composites (SHCC)
Authors
KeywordsCrack pattern
Engineered cementitious composite
Environmental impact
Fiber-reinforced concrete
High-tensile strength
Limestone calcined clay
Polyethylene fiber
Supplementary cementitious material
Issue Date2020
Citation
RILEM Bookseries, 2020, v. 25, p. 513-522 How to Cite?
AbstractHigh-tensile strength strain-hardening cementitious composites (HTS-SHCC) can reduce the size of structural members, enhance the flexibility of architectural design and make 3-D printed structures without steel reinforcements possible. To produce HTS-SHCC, high-performance polyethylene (PE) fiber is widely used, due to its high-tensile strength of about 3 GPa. However, PE fiber has a hydrophobic and smooth surface, which limits the fiber/matrix interfacial bond strength. Therefore, a large dosage of very fine powders (e.g., micro silica) has been generally included in the matrix to densify the fiber/matrix interface and ensure sufficient fiber-bridging capacity. Recently, it has been proved in the literature that limestone calcined clay (LC2) system has a strong porosity refinement effect in cementitious materials. Thus, LC2 has the potential to ensure sufficient fiber/matrix frictional bond strength by replacing a fraction of cement by LC2 in HTS-SHCC, which can also reduce the material cost and the environmental impact of the materials. This paper presents a feasibility study of incorporating different dosages of LC2 (0, 20, 40, 60 and 80% of binder) in HTS-SHCC, with the focus on the tensile performance in terms of tensile strength, ultimate tensile strain and crack pattern. The findings in this study provide a new, low-cost and sustainable approach to produce HTS-SHCC.
Persistent Identifierhttp://hdl.handle.net/10722/334678
ISSN
2023 SCImago Journal Rankings: 0.228

 

DC FieldValueLanguage
dc.contributor.authorYu, Jing-
dc.contributor.authorLeung, Christopher K.Y.-
dc.date.accessioned2023-10-20T06:49:51Z-
dc.date.available2023-10-20T06:49:51Z-
dc.date.issued2020-
dc.identifier.citationRILEM Bookseries, 2020, v. 25, p. 513-522-
dc.identifier.issn2211-0844-
dc.identifier.urihttp://hdl.handle.net/10722/334678-
dc.description.abstractHigh-tensile strength strain-hardening cementitious composites (HTS-SHCC) can reduce the size of structural members, enhance the flexibility of architectural design and make 3-D printed structures without steel reinforcements possible. To produce HTS-SHCC, high-performance polyethylene (PE) fiber is widely used, due to its high-tensile strength of about 3 GPa. However, PE fiber has a hydrophobic and smooth surface, which limits the fiber/matrix interfacial bond strength. Therefore, a large dosage of very fine powders (e.g., micro silica) has been generally included in the matrix to densify the fiber/matrix interface and ensure sufficient fiber-bridging capacity. Recently, it has been proved in the literature that limestone calcined clay (LC2) system has a strong porosity refinement effect in cementitious materials. Thus, LC2 has the potential to ensure sufficient fiber/matrix frictional bond strength by replacing a fraction of cement by LC2 in HTS-SHCC, which can also reduce the material cost and the environmental impact of the materials. This paper presents a feasibility study of incorporating different dosages of LC2 (0, 20, 40, 60 and 80% of binder) in HTS-SHCC, with the focus on the tensile performance in terms of tensile strength, ultimate tensile strain and crack pattern. The findings in this study provide a new, low-cost and sustainable approach to produce HTS-SHCC.-
dc.languageeng-
dc.relation.ispartofRILEM Bookseries-
dc.subjectCrack pattern-
dc.subjectEngineered cementitious composite-
dc.subjectEnvironmental impact-
dc.subjectFiber-reinforced concrete-
dc.subjectHigh-tensile strength-
dc.subjectLimestone calcined clay-
dc.subjectPolyethylene fiber-
dc.subjectSupplementary cementitious material-
dc.titleUsing Limestone Calcined Clay to Improve Tensile Performance and Greenness of High-Tensile Strength Strain-Hardening Cementitious Composites (SHCC)-
dc.typeBook_Chapter-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/978-981-15-2806-4_58-
dc.identifier.scopuseid_2-s2.0-85089742073-
dc.identifier.volume25-
dc.identifier.spage513-
dc.identifier.epage522-
dc.identifier.eissn2211-0852-

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