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Long term performance of recycled concrete beams with different water–cement ratio and recycled aggregatereplacement rate

Jingwei YING; Feiming SU; Shuangren CHEN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3, Pages 302-315 doi: 10.1007/s11709-022-0803-7

Abstract: the service performance of recycled aggregate concrete (RAC) components for different values of water−cementratio and replacement rate of recycled coarse aggregate (RCA).the water−cement ratio at the same time.ratio and RCA replacement rate.rate of RCA than by adjusting the water−cement ratio.

Keywords： recycled concrete beam the replacement rate of recycled coarse aggregate water–cement ratio digital

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Utilization of MSWI fly ash as partial cement or sand substitute with focus on cementing efficiency and

Lei Zheng, Xingbao Gao, Wei Wang, Zifu Li, Lingling Zhang, Shikun Cheng

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1184-6

Abstract: Washed MSWI fly ash was used as partial cement or sand substitute.Sand replacing is beneficial for strength, while cement replacement reduces strength.Health risk assessment was conducted for MSWI fly ash blended cement mortar.The k values of fly ash used for sand replacement were all significantly above that used for cement substitutionThe macropores assigned to the gaps between particles decreased when the fly ash was used as sand replacement

Keywords： MSWI fly ash Cementing efficiency Health risk assessment of heavy metal Sand replacement Cement replacement

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Effect of fineness of ash on pozzolanic properties and acid resistance of sugarcane bagasse ash replaced cement

Shan E ALI; Rizwan AZAM; Muhammad Rizwan RIAZ; Mohamed ZAWAM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10, Pages 1287-1300 doi: 10.1007/s11709-022-0872-7

Abstract: paper addresses the potential use of Sugar Cane Bagasse Ash (SCBA) as a pozzolanic material for partial cementreplacement in concrete mixtures.Cement mortars containing SCBA having five different particle size distributions at a replacement rateSCBA with 0% retained on sieve No. 325 was used to replace 20% by weight of cement and create mortar

Keywords： durability cement replacement sugarcane bagasse ash fineness of ash pozzolanic properties mortar

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Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

Lapyote PRASITTISOPIN, Issara SEREEWATTHANAWUT

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1, Pages 16-25 doi: 10.1007/s11709-016-0373-7

Abstract: The geopolymer technology has a viability to substitute traditional concrete made of portland cement(PC) because replacing PC with fly ash leads to reduced carbon dioxide emissions from cement productions

Keywords： fly ash geopolymer nucleation agent portland cement replacement

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Extending blending proportions of ordinary Portland cement and calcium sulfoaluminate cement blends:

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5, Pages 1249-1260 doi: 10.1007/s11709-021-0770-4

Abstract: This study extended blending proportion range of ordinary Portland cement (OPC) and calcium sulfoaluminate(CSA) cement blends, and investigated effects of proportions on setting time, workability, and strength

Keywords： calcium sulfoaluminate cement cement blends hydration reaction setting workability compressive strength

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ITZ microstructure, thickness, porosity and its relation with compressive and flexural strength of cementmortar; influence of cement fineness and water/cement ratio

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2, Pages 191-201 doi: 10.1007/s11709-021-0792-y

Abstract: A new insight into the interfacial transition zone (ITZ) in cement mortar specimens (CMSs) that is influencedby cement fineness is reported.The importance of cement fineness in ITZ characterizations such as morphology and thickness is elucidatedThe findings indicate that by increasing the cement fineness the calcium silicate hydrate formation inBy increasing cement fineness by about 25% of, the ITZ thickness of CMSs was reduced by about 30% and

Keywords： cement fineness interfacial transition zone compressive and flexural strength

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Study of bond strength between various grade of Ordinary Portland Cement (OPC) and Portland PozzolaneCement (PPC) mixes and different diameter of TMT bars by using pullout test

A D POFALE, S P WANJARI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1, Pages 39-45 doi: 10.1007/s11709-013-0193-y

Abstract: Since last two decades, the Portland Pozzolane Cement (PPC) is extensively used in structural concreteThere are many literatures available on bond strength of concrete mixes using Ordinary Portland Cement

Keywords： bond strength Portland Pozzolane Cement (PPC) concrete Ordinary Portland Cement (OPC) concrete bond between

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Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4, Pages 411-418 doi: 10.1007/s11709-013-0228-4

Abstract: The production of portland cement–the key ingredient in concrete–generates a significant amount of carboncontribution to greenhouse gas emissions is the use of fly ash to replace a significant amount of the cementThis study presents the results of an experimental investigation that evaluates effect of fly ash replacementThis study includes four mixes with 0%, 30%, 50%, and 70% fly ash as a cement replacement.Results of these statistical tests show that the mix with higher level of fly ash replacement level has

Keywords： concrete fracture energy fly ash

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Endosulfan residues and farmers’ replacement behaviors of endosulfan in the north-west inland cotton

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1803-8

Abstract:

● The situation of endosulfan residues in cotton fields were assessed.

Keywords： Cotton fields Endosulfan residues Farmers KAP survey Replacement behaviours

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Autogenous healing mechanism of cement-based materials

Frontiers of Structural and Civil Engineering Pages 948-963 doi: 10.1007/s11709-023-0960-3

Abstract: Autogenous self-healing is the innate and fundamental repair capability of cement-based materials forHowever, systematic research on the autogenous healing mechanism of cement-based materials is lackingThe healing process mainly involves a chemical process, including further hydration of unhydrated cementHence, the autogenous healing process is influenced by the material constituents of the cement compositeThis study provides a valuable reference for developing an improved healing technique for cement-based

Keywords： autogenous healing cement-based materials healing mechanism aggregation effect

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Research review of the cement sand and gravel (CSG) dam

Xin CAI, Yingli WU, Xingwen GUO, Yu MING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1, Pages 19-24 doi: 10.1007/s11709-012-0145-y

Abstract: The cement sand and gravel (CSG) dam is a new style of dam that owes the advantages both of the concrete

Keywords： cement sand and gravel (CSG) dam cement sand and gravel (CSG) material research review

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Experimental study and field application of calcium sulfoaluminate cement for rapid repair of concrete

Yanhua GUAN, Ying GAO, Renjuan SUN, Moon C. WON, Zhi GE

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3, Pages 338-345 doi: 10.1007/s11709-017-0411-0

Abstract: Type III cement and Calcium Sulfoaluminate (CSA) cement are the most commonly used fast-setting hydrauliccement (FSHC).CSA cement concrete had higher early-age and long term strength.The shrinkage of CSA cement concrete was lower than that of Type III cement concrete.Both CSA and Type III cement concrete had similar CTE values.

Keywords： Calcium Sulfoaluminate (CSA) cement Type III cement coefficient of thermal expansion (CTE) shrinkage

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The evolution of surgical and medical treatment of aortic root aneurysm

Xu Yu Jin,Li Yuan,Mario Petrou,John R. Pepper

Frontiers of Medicine 2014, Volume 8, Issue 4, Pages 427-432 doi: 10.1007/s11684-014-0385-4

Abstract:

Since first report of aortic root replacement in 1968, the surgical risk and long term outcome of

Keywords： aortic root aneurysm aortic root replacement valve sparing root replacement personalised external aortic

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Multiscale mechanical modeling of hydrated cement paste under tensile load using the combined DEM-MD

Yue HOU, Linbing WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3, Pages 270-278 doi: 10.1007/s11709-017-0408-8

Abstract: this paper, a combined DEM-MD method is proposed to simulate the crack failure process of Hydrated Cement

Keywords： hydrated cement paste multiscale MD simulation DEM

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Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 1058-1070 doi: 10.1007/s11709-021-0747-3

Abstract: of multilayer graphene oxide (MGO) on compressive strength, flexural strength, and microstructure of cementThe cement mortar was prepared with type P. II. 52.5 Portland cement, standard sand, and MGO.Four mixes were prepared with inclusion of MGO (0%, 0.02%, 0.04%, and 0.06% by weight of cement).The testing result shows that the compressive of GO-cement mortar increased by 4.84%–13.42%, and theMGO made little contribution to the increases of compressive strength and flexural strength of cement

Keywords： graphene oxide cement mortar mechanical properties microstructure

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Title Author Date Type Operation

Long term performance of recycled concrete beams with different water–cement ratio and recycled aggregatereplacement rate

Jingwei YING; Feiming SU; Shuangren CHEN

Journal Article

Utilization of MSWI fly ash as partial cement or sand substitute with focus on cementing efficiency and

Lei Zheng, Xingbao Gao, Wei Wang, Zifu Li, Lingling Zhang, Shikun Cheng

Journal Article

Effect of fineness of ash on pozzolanic properties and acid resistance of sugarcane bagasse ash replaced cement

Shan E ALI; Rizwan AZAM; Muhammad Rizwan RIAZ; Mohamed ZAWAM

Journal Article

Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

Lapyote PRASITTISOPIN, Issara SEREEWATTHANAWUT

Journal Article

Extending blending proportions of ordinary Portland cement and calcium sulfoaluminate cement blends:

Journal Article

ITZ microstructure, thickness, porosity and its relation with compressive and flexural strength of cementmortar; influence of cement fineness and water/cement ratio

Journal Article

Study of bond strength between various grade of Ordinary Portland Cement (OPC) and Portland PozzolaneCement (PPC) mixes and different diameter of TMT bars by using pullout test

A D POFALE, S P WANJARI

Journal Article

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Journal Article

Endosulfan residues and farmers’ replacement behaviors of endosulfan in the north-west inland cotton

Journal Article

Autogenous healing mechanism of cement-based materials

Journal Article

Research review of the cement sand and gravel (CSG) dam

Xin CAI, Yingli WU, Xingwen GUO, Yu MING

Journal Article