A Mixed Pultrusion and Braiding Process Adapted to the Production of High Performance Cement Composite Beams

2012 ◽  
pp. 519-526
Author(s):  
A. Gabor ◽  
P. Hamelin ◽  
G. Promis
Keyword(s):  
High Performance ◽  
Cement Composite ◽  
Composite Beams

Responses of composite beams with high-performance fiber-reinforced concrete

2021 ◽  
Vol 270 ◽  
pp. 121814
Author(s):  
Duy-Liem Nguyen ◽  
Duc-Kien Thai ◽  
H.T. Tai Nguyen ◽  
Thac-Quang Nguyen ◽  
Kien Le-Trung
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
Composite Beams ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
High Performance Fiber

scholarly journals EXPERIENCE OF APPLICATION HIGH PERFORMANCE CEMENT COMPOSITES FOR CREATING DURABLE SCULPTURAL ELEMENTS

2017 ◽  
Vol 3 ◽  
pp. 286
Author(s):  
Genadijs Sahmenko ◽  
Sandis Aispurs ◽  
Aleksandrs Korjakins
Keyword(s):  
Water Absorption ◽  
High Performance ◽  
Cement Composite ◽  
Cement Composites ◽  
Freezing And Thawing ◽  
Initial Water ◽  
Good Potential ◽  
Freezing And Thawing Cycles ◽  
Material Ductility ◽  
And Control

Traditionally, sculptural and decorative elements of building facades are created from mortar mixes based on lime, gypsum or Portland cement. Generally these materials have porous and permeable structure, which determines their accelerated degradation, especially in the aggressive environment of modern cities. High performance cement composites (HPCC) have been considered for production and restoration of sculptural elements in historical buildings. For this purpose, fine-graded, multi-component and highly workable mixes were elaborated. Mix compositions were modified with micro-fillers, plasticizing and stabilizing admixtures, as well as fibers to improve material ductility and control shrinkage cracking. Basic mechanical properties and durability (such as water absorption, frost resistance) were determined and two types of HPCC were compared (>50 MPa: HPCC and >120 MPa: UHPCC). It has been confirmed that cement composite mixes are characterized by self-consolidating effect, high compressive strength, extremely high resistance versus freezing and thawing cycles and low water absorption. Surface quality was evaluated and initial water absorption (tube tests) were performed for laboratory samples and real sculptural elements after 5 years of exploitation. The results confirmed good potential for using HPCC for creating more attractive and durable architectural shapes and façade elements compared to elements made using traditional cement and lime mortar.

scholarly journals Parametric Analysis on Seismic Performance of Hybrid Precast Concrete Beam-Column Joint

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
H.-K. Choi ◽  
Grzegorz Golewski
Keyword(s):  
High Performance ◽  
Precast Concrete ◽  
Plastic Hinge ◽  
Cement Composite ◽  
Fe Analysis ◽  
Experimental Results ◽  
Critical Parameters ◽  
Detailed Model ◽  
Plate Length ◽  
Bolt Stress

In this paper, a nonlinear finite element (FE) analysis of high-performance hybrid system (HPHS) beam-column connections is presented. The detailed experimental results of the ten half-scale hybrid connections with limited seismic detailing have been discussed in a different paper. However, due to the inherent complexity of HPHS beam-column joints and the unique features of the tested specimens, the experimental study was not comprehensive enough. The new connection (HPHS) detail suggested in this study is characterized by ductile connection, steel connectors, and engineered cementitious composite (ECC) which is a kind of high-performance fiber reinforced cement composite with multiple fine cracks (HPFRCCs). Therefore, in this paper, FE analysis results are compared with experimental results from the cycle tests of the two specimens (RC and PC) to assess model accuracy, and detailed model descriptions are presented, including the determination of stiffness and strength. The critical parameters influencing the joint’s behavior are the axial load on column, beam connection steel plate length, inner bolt stress contribution, and plastic hinge area.

scholarly journals Developing high performance magnesium phosphate cement composite bipolar plates for fuel cells

2019 ◽  
Vol 158 ◽  
pp. 1980-1985
Author(s):  
Wenbin Hao ◽  
Hongyan Ma ◽  
Guoxing Sun ◽  
Zongjin Li
Keyword(s):  
Fuel Cells ◽  
High Performance ◽  
Cement Composite ◽  
Magnesium Phosphate ◽  
Bipolar Plates

Numerical and analytical modeling of fiber-matrix bond behaviors of high performance cement composite

2019 ◽  
Vol 125 ◽  
pp. 105892 ◽  
Author(s):  
Chaohui Zhang ◽  
Caijun Shi ◽  
Zemei Wu ◽  
Xue Ouyang ◽  
Kai Li
Keyword(s):  
High Performance ◽  
Analytical Modeling ◽  
Cement Composite ◽  
Fiber Matrix

Characteristics of Fiber Reinforced Cementitious Composites in Dependence on Casting Direction

2015 ◽  
Vol 732 ◽  
pp. 377-380 ◽  
Author(s):  
Jindřich Fornůsek ◽  
Michal Tvarog
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
Cement Composite ◽  
Fiber Reinforced Concrete ◽  
The Other ◽  
Fiber Reinforced ◽  
Peak Loads ◽  
High Performance Fiber ◽  
Reinforced Cement ◽  
Specific Fracture

This paper deals about behavior of fiber reinforced cement composite in dependence on the casting direction. Almost fifty concrete prisms of size 400 x 100 x 100 mm were cast; half of these were fiber reinforced concrete (FRC) and the other half was ultra-high performance fiber reinforced concrete (UHPFRC). Approximately one half of both mixtures was cast in horizontal direction and the other half vertically. It was found that the specific fracture energy of horizontally cast prisms was approximately 4,5 times larger for both materials than the vertically cast ones. Ultimate loads of FRC were very similar for both casting directions. Peak loads of the horizontally cast UHPFRC prisms were approximately 3 times larger than the vertically cast ones. This research confirmed that there is significant influence of the casting direction on the fiber reinforced concrete characteristics.

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