Zhi Ge
Shandong University
Ultimate tensile strengthEngineeringMortarCuring (chemistry)Composite materialAsphaltAbsorption of waterFlexural strengthShrinkageGeotechnical engineeringParticle sizeMaterials scienceStrength of materialsWater contentCementitiousPolyethylene terephthalatePortland cementCompressive strengthElastic modulusAggregate (composite)CementCrackingElectrical resistivity and conductivityFly ash
59Publications
13H-index
589Citations
Publications 63
Newest
#1Guan Yanhua (SDU: Shandong University)H-Index: 5
#2Wu Jiajie (SDU: Shandong University)H-Index: 1
Last. Dengyuan Zhu (LYU: Linyi University)
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Abstract null null Engineering cementitious composite (ECC) is a promising candidate as the overlay material of orthotropic steel bridge deck (OSBD), to improve the durability and extend the service life. The mechanical performance of short headed stud connectors in steel-ECC composite structure has been limited studied. This study investigated the shear behavior of short headed studs embedded in ECC through experimental push-out tests and validated finite element (FE) analysis. The experimental...
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#1Zhi Ge (SDU: Shandong University)H-Index: 13
#2Yujie Feng (SDU: Shandong University)H-Index: 2
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Abstract null null Making effective use of recycled fine clay brick aggregate (RFCBA) is of benefit to reserve natural resources and protect the environment. The RFCBA has a high-water absorption capacity, which means it can be potentially used as internal curing agent for low water-to-binder concrete mix. The current study uses RFCBA to replace natural fine aggregate in self-compacting concrete (SSC) and investigates the influence of RFCBA dosage and its moisture content (saturated surface dry ...
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#1Zhi Ge (SDU: Shandong University)H-Index: 13
#2Abdullah M. Tawfek (SDU: Shandong University)
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Abstract null null In this study, an extrusion approach was proposed to improve the fiber orientation degree in engineering cementitious composite (ECC) during the casting process. The influence of the casting approach on the fiber orientation and mechanical behavior was investigated. Specimens were prepared by two different casting approaches: the extrusion and the commonly adopted one. The fiber orientation was detected using scanning electron microscopy (SEM) and image processing techniques. ...
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#7Jian Liu (SDU: Shandong University)H-Index: 136
Abstract null null Using mineral admixtures to improve the self-healing capacity of cementitious-based materials is a valid and economical method. To achieve a better understanding of the characteristics of different mineral admixtures affecting the self-healing performance of matrix, this study evaluated the self-healing capacity of mortar specimens blended with different kinds of mineral admixtures through testing crack width and water permeability, and characterized the healing products in cr...
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#1Hongzhi ZhangH-Index: 15
#2Yuan HuaqiangH-Index: 2
Last. Branko ŠavijaH-Index: 26
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The aim of the current study is to investigate the properties of graphene nanoplatelets-cement composites in a consistent sense. The influence of the addition of 2D graphene nanoplatelets (GNPs) on the workability, setting time, flowability, strengths and pizozresistive properties were studied. The dosage of the GNPs is 0 0.05, 0.1, 0.3, 0.5, 0.7, 1.0 wt% of the binder material. PVP type surfactant was used to disperse GNPs. The experimental results showed that the addition of GNPs increases the...
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#1Sun Renjuan (SDU: Shandong University)H-Index: 10
#2Fang Chen (SDU: Shandong University)H-Index: 1
Last. Zhi Ge (SDU: Shandong University)H-Index: 13
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Abstract White mud (WM) is a waste solid from paper industry. It mainly contains calcium carbonate and residual alkali metal ions (e.g., K+, Na+ and Mg2+). The aim of the study was to test the feasibility of incorporation white mud into a blended slag/fly ash alkali activated binder system. Blends of slag and fly ash was used as the precursor and WM was used as the filling material. Pastes with 0%, 10%, 20%, 30%, 40% and 50% WM were prepared for the investigation. It was found that the compressi...
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#1Dongshuai Hou (Qingdao University)H-Index: 31
#2Wei Zhang (Qingdao University)H-Index: 124
Last. Hongzhi Zhang (SDU: Shandong University)H-Index: 15
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Abstract Peridynamics (PD) model is a nonlocal theory to describe the formation of discontinuities, e.g., cracks and fractures due to deformations in the displacement field. The current study aims at implementing the Peridynamics theory on the fracture performance modelling of mortar at the meso-scale. For this purpose, a computational uniaxial tension test was performed on a multi-phase virtual specimen consisting of sand, hydrated cement paste and air voids. The mechanical properties of each p...
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#1Zhi Ge (SDU: Shandong University)H-Index: 13
#2Yujie Feng (SDU: Shandong University)H-Index: 2
Last. Xiangyang Liu (SDU: Shandong University)H-Index: 1
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Abstract This paper investigates the feasibility of using recycled fine clay brick aggregate (RFCBA) for the purpose of internal curing and reducing drying shrinkage of mortar. Effects of RFCBA on fresh and hardened properties of mortar were studied. RFCBA was used to replace river sand (in replacement of 30%, 60%, and 100%, respectively) in making the mortar mixes. Besides, the influence of moisture content of the RFCBA was evaluated by varying its pre-wetting time (0, 30 min, 24 h) before the ...
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#1Nengdong Jiang (SDU: Shandong University)H-Index: 1
#2Hongzhi Zhang (SDU: Shandong University)H-Index: 15
Last. Branko Šavija (TU Delft: Delft University of Technology)H-Index: 26
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Abstract A combination of laboratory experiments and numerical simulations at multiple length scales can provide in-depth understanding of fracture behaviour of hydrated cement paste (HCP). To that end, the current work presents a numerical study on compressive failure of hydrated cement paste (HCP) at the micro-scale. Virtual specimens consisting of various phases were obtained using a combination of X-ray computed tomography and image segmentation techniques. The discrete lattice fracture mode...
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