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Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphatecement-based concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1047-1057 doi: 10.1007/s11709-021-0755-3

Abstract: Magnesium phosphate cement (MPC) received increased attention in recent years, but MPC-based concreteThe micro-steel fibers (MSF) were added to MPC-based concrete to enhance its ductility due to the highconcrete.axial and cubic compressive strength of MPC-based concrete were proposed.The results showed that with the increase of MSF volume fraction, the fluidity of fresh MPC-based concrete

Keywords： magnesium phosphate cement-based concrete     micro-steel fibers     four-point flexural strength     compressive    

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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 cementIn this study, different factors influencing the healing process of cement-based materials were investigatedThis 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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Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method

Hakan T TURKER

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1017-1028 doi: 10.1007/s11709-022-0871-8

Abstract: The effect of size on the biaxial flexural strength (BFS) of Portland cement mortar was investigatedAn experimental program was conceived to study the size effect by keeping a constant water-cement ratioof 0.485, cement-sand ratio of 1:2.75, and using unreinforced triangular mortar plates of five differenttriangular plate specimen side length and specimen thickness led to a decrease in the BFS of Portland cement

Keywords： testing     apparatus & methods     plain concrete     tensile properties     biaxial flexural strength     triangular    

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Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 722-731 doi: 10.1007/s11709-023-0950-5

Abstract: The aim of this study is to appraise the potential of calcium sulfoaluminate (CSA) cement-based groutsThe hydration and performance of CSA cement-based grouts cured in cold environments (10, 0, and −10 °generation of a significant quantity of hydration products, which indicates the rapid hydration of CSA cement-basedConsequently, the CSA cement-based grouts exhibit remarkably high early strength.The findings show that the strength of grouts fabricated using CSA cement can develop rapidly in cold

Keywords： permafrost     low temperatures     calcium sulfoaluminate cement-based grouts     hydration reaction     compressive    

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High-Performance and Multifunctional Cement-Based Composite Material Article

Victor C. Li

Engineering 2019, Volume 5, Issue 2,   Pages 250-260 doi: 10.1016/j.eng.2018.11.031

Abstract:

Concrete is a continuously evolving material, and even the definition of high-performance concreteIn this paper, high-performance characteristics of concrete material are considered to be those thatBased on recent advances in engineered cementitious composites (ECC), this paper suggests that concrete

Keywords： High-performance concrete     Multifunction     Smart     Cement-based composite     Durability     Resilience     Sustainability    

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Microbial self-healing of cracks in cement-based materials and its influencing factors

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0986-6

Abstract: Cement-based materials are brittle and crack easily under natural conditions.The results showed that microbial self-healing agents can repair cracks in cement-based materials inA microbial self-healing agent was embedded in the cement-based material, which automatically repaired

Keywords： cement-based materials     cracks     microbial self-healing agent     mechanism     intelligent building materials    

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Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 643-651 doi: 10.1007/s11709-021-0709-9

Abstract: This study presents the results of the 3D microstructure, thermal conductivity, and heat flow in cement-basedImages were captured using X-ray micro computed tomography (micro-CT) imaging technique on cement-basedBased on the analysis, the pore volume of 11000 µm3 was determined across the three densitiesThe 3D model showed that heat flows through the cement paste solids and with an increase in porosity

Keywords： 3D pore volume distribution     X-ray tomography     3D shape factor     heat flow    

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Effect of surgical factors on the augmentation of cement-injectable cannulated pedicle screw fixationby a novel calcium phosphate-based nanocomposite

Haolin Sun, Chun Liu, Shunlun Chen, Yanjie Bai, Huilin Yang, Chunde Li, Lei Yang

Frontiers of Medicine 2019, Volume 13, Issue 5,   Pages 590-601 doi: 10.1007/s11684-019-0710-z

Abstract: Bone cement-augmented pedicle screw system demonstrates great efficacy in spinal disease treatments.However, the intrinsic drawbacks associated with clinically used polymethylmethacrylate (PMMA) cementdemands for new bone cement formulations.On the basis of our previous studies, a novel injectable and biodegradable calcium phosphate-based nanocompositesimulated and animal osteoporotic bone models, and the results were compared with those of clinical PMMA cement

Keywords： bone cement     pedicle screw     degenerative spinal diseases     calcium phosphate     injectable    

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Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by

H. Watamura, H. Marukawa, I. Hirasawa

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 55-59 doi: 10.1007/s11705-013-1312-y

Abstract: Relationship between magnesium ammonium phosphate (MAP) crystal properties and the filtration ability

Keywords： membrane separation     crystallization     MAP    

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Cement-based solidification/stabilization of contaminated soils by nitrobenzene

Jianguo LIU, Xiaoqin NIE, Xianwei ZENG, Zhaoji SU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 437-443 doi: 10.1007/s11783-012-0406-y

Abstract: The cement-based solidification/stabilization (S/S) of nitrobenzene (NB) contaminated soils, with cementThe leaching test results showed that the factors affecting S/S efficiency were NB concentration, cement-to-limeThe optimizing formula, that is, contaminated soils (dry weight):cement:lime= 100:25:25, with 5 wt% additional

Keywords： solidification/stabilization     nitrobenzene     contaminated soils     powder activated carbon    

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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 concreteBut, till to date, a few literature is available on bond strength of concrete using PPC mixes.There are many literatures available on bond strength of concrete mixes using Ordinary Portland CementIn the present investigation, total 24 samples consisting of M20, M35 and M50 grades of concrete andHence, based on these findings, it could be concluded that development length for PPC mixes could be

Keywords： bond strength     Portland Pozzolane Cement (PPC) concrete     Ordinary Portland Cement (OPC) concrete     bond betweenconcrete and steel     pullout test     development length    

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Molecular Simulation of Cement-based Materials and Their Properties Review

Ashraf A. Bahraq, Mohammed A. Al-Osta, Omar S. Baghabra Al-Amoudi, I.B. Obot,Mohammed Maslehuddin, Habib-ur-Rehman Ahmed, Tawfik A. Saleh

Engineering 2022, Volume 15, Issue 8,   Pages 165-178 doi: 10.1016/j.eng.2021.06.023

Abstract: , is responsible for the stiffness, strength, and durability of Portland cement concrete.To understand the mechanical and durability behavior of concrete, it is important to investigate theinteractions of hydrated cement phases with other materials at the nanoscale.In this regard, the molecular simulation of cement-based materials is an effective approach to studythe properties and interactions of the cement system at the fundamental scale.

Keywords： Atomistic simulation     Molecular dynamics     Cement phases     Hydration products     Nanoengineering    

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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: 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.Based on the laboratory results, the CSA cement was selected as the partial-depth rapid repair materialThe data collected during and after the repair show that the CSA cement concrete had good short-term

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

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

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: for different values of water−cement ratio and replacement rate of recycled coarse aggregate (RCA).beams were tested respectively by changing water−cement ratio and RCA replacement rate.rate of RCA than by adjusting the water−cement ratio.The water−cement ratio has an evident influence on the axial compressive strength and early creep ofconcrete beams.

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

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Some Considerations on the Developments of Cement and Concrete

Tang Mingshu

Strategic Study of CAE 2002, Volume 4, Issue 1,   Pages 41-46

Abstract:

According to the cases of deterioration of big concrete structures investigated in Canada, it wasIn the respect of cement classification it was suggested to cancel “ordinary silicate cement”.The cement industry should be gradually changed to “green industry of cementitious materials&The standards and compositions of cement should be reviewed on the basis of technical advances of concreteFinally it was suggested to bring the production, circulation and utilization of cement into line in

Keywords： cement     concrete     durability     classification     standard    

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Title Author Date Type Operation

Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphatecement-based concrete

Journal Article

Autogenous healing mechanism of cement-based materials

Journal Article

Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method

Hakan T TURKER

Journal Article

Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Journal Article

High-Performance and Multifunctional Cement-Based Composite Material

Victor C. Li

Journal Article

Microbial self-healing of cracks in cement-based materials and its influencing factors

Journal Article

Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using

Journal Article

Effect of surgical factors on the augmentation of cement-injectable cannulated pedicle screw fixationby a novel calcium phosphate-based nanocomposite

Haolin Sun, Chun Liu, Shunlun Chen, Yanjie Bai, Huilin Yang, Chunde Li, Lei Yang

Journal Article

Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by

H. Watamura, H. Marukawa, I. Hirasawa

Journal Article

Cement-based solidification/stabilization of contaminated soils by nitrobenzene

Jianguo LIU, Xiaoqin NIE, Xianwei ZENG, Zhaoji SU

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

Molecular Simulation of Cement-based Materials and Their Properties

Ashraf A. Bahraq, Mohammed A. Al-Osta, Omar S. Baghabra Al-Amoudi, I.B. Obot,Mohammed Maslehuddin, Habib-ur-Rehman Ahmed, Tawfik A. Saleh

Journal Article

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

Journal Article

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

Jingwei YING; Feiming SU; Shuangren CHEN

Journal Article

Some Considerations on the Developments of Cement and Concrete

Tang Mingshu

Journal Article