scholarly journals AN EXPERIMENTAL STUDY ON RELATIONSHIP BETWEEN CHLORIDE CONTENT IN MORTAL AND PASSIVITY CONDITION OF EMBEDDED STEEL BAR

2012 ◽  
Vol 66 (1) ◽  
pp. 466-471 ◽  
Author(s):  
Hidenori HAMADA ◽  
Yasutaka SAGAWA ◽  
Takanori IKEDA ◽  
Kohei TADA
Keyword(s):  
Experimental Study ◽  
Chloride Content ◽  
Steel Bar

Experimental study on anchorage performance of steel bar-corrugated pipe grouted connection

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 1834-1842
Author(s):  
Jinfeng Ma ◽  
Jianing Zhu ◽  
Guoliang Bai ◽  
Wei Zheng
Keyword(s):  
Experimental Study ◽  
Steel Bar

scholarly journals Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Papa Niane Faye ◽  
Yinghua Ye ◽  
Bo Diao
Keyword(s):  
Crack Width ◽  
Chloride Content ◽  
Initial Crack ◽  
Bond Performance ◽  
Pull Out ◽  
Steel Bar ◽  
Service Conditions ◽  
Concrete Casting ◽  
Initial Cracks ◽  
Bar Diameter

The importance of an accurate simulation of service conditions in the bond performance of reinforced concrete structures in coastal regions is highlighted. Four widths of initial crack of 0, 80, 150, and 210 microns were artificially made by inserting slice into bond specimens during concrete casting. Three bar diameters of 10 mm, 14 mm, and 18 mm were selected. At 28 days, the bond specimens were exposed to the environment of wet-dry cycles of seawater and atmosphere for another 90 days. The pull-out test was then conducted and chloride contents were tested at crack area along 40 mm depth. Results show that, for the specimen with 10 mm bar diameter, cracks width of less than 80 microns vanished rapidly during wet-dry cycles; for other specimens, cracks width of 100–150 microns decreased slightly. However the cracks of width more than 200 microns increased gradually; the chloride content decreased along the depth of concrete, and the chloride content increased as the widths of initial cracks increased or as the bar diameters increased. The ductility of bond specimens decreased as the diameter increased.

Experimental Study on Seismic Performance of Composite Reinforced Concrete Block Masnory

2011 ◽  
Vol 243-249 ◽  
pp. 630-635
Author(s):  
Ying Jie Zhu ◽  
Lan Li ◽  
Wen Hui Yang
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Seismic Performance ◽  
Failure Process ◽  
Concrete Block ◽  
Width Ratio ◽  
Steel Bar ◽  
Core Column ◽  
Constructional Column ◽  
Hysteresis Characteristics

Seismic performance under low cyclic experimental study on the six of constructional column- core column composite reinforcement concrete block masnory wall is preasented in this paper, considering the height-width ratio, window hole and without window hole, the setting of the horizontal reinforcing steel bar in the walls. Failure process and failure pattern, hysteresis characteristics, bearing capacity, ductility, skeleton curves, the viscous damping coefficient, stiffness and steel strain change the properties are analyzed, respectivily. Test results shown that this kind of composite reinforced concrete block masnory system has better seismic performance.

Experimental Study on Influence on Structural Mechanical Behavior Caused by Steel Bar Corrosion of Hollow Slab Hinge Joints

2010 ◽  
Vol 163-167 ◽  
pp. 1058-1062
Author(s):  
Li Ying Peng ◽  
Jun Wei ◽  
Xia Ban
Keyword(s):  
Experimental Study ◽  
Theoretical Analysis ◽  
Mechanical Behavior ◽  
Steel Bar

Through experiment and theoretical analysis, this paper researched the influence of steel bar corrosion of hollow slab hinge joints on the structural mechanical behavior. The results showed that when load was little corrosion of hinge joints steel bar would do little to affect the joint between hollow slabs and hinge joints would work together with hollow slabs as a whole. When load was large, corrosion of hinge joints steel bar would decrease the joint between hollow slabs.

Experimental study of an aqueous desiccant mixture system: Air dehumidification and desiccant regeneration

2005 ◽  
Vol 219 (8) ◽  
pp. 669-680 ◽  
Author(s):  
A A Al-Farayedhi ◽  
P Gandhidasan ◽  
M A Antar ◽  
M S Abdul Gaffar
Keyword(s):  
Experimental Study ◽  
Calcium Chloride ◽  
Lithium Chloride ◽  
Chloride Solution ◽  
Cooling System ◽  
Chloride Content ◽  
Calcium Chloride Solution ◽  
Lithium Chloride Solution ◽  
Regenerator System ◽  
Mixture System

This article presents the results of an experimental study on the performance of a structured packing dehumidifier and the regenerator system. The system is tested using different proportions of an aqueous desiccant mixture of calcium chloride and lithium chloride solutions with an overall concentration of 40 wt%. The instantaneous effectiveness and the time-average effectiveness of the dehumidification process as well as the regeneration process are defined for the hybrid cooling system. It is found that as the lithium chloride content in the solution increases, the effectiveness of the dehumidifier as well as the regenerator increases. Moreover, the regeneration of the lithium chloride solution is found to be more effective than that of calcium chloride solution. The dehumidifier effectiveness using the desiccant mixture of 20 wt% CaCl2 and 20 wt% LiCl is found to be close to that of 45 wt% solution of calcium chloride and improves by ɛ80 per cent over the 40 wt% solution of calcium chloride.

scholarly journals An Experimental Study on Retrofit Effect of Shear Wall with Opening Using Steel Bar or Steel Plate

2009 ◽  
Vol 21 (2) ◽  
pp. 129-138 ◽  
Author(s):  
Youn-Cheul Choi ◽  
Baek-Il Bae ◽  
Chang-Sik Choi ◽  
Hyun-Ki Choi
Keyword(s):  
Experimental Study ◽  
Steel Plate ◽  
Shear Wall ◽  
Steel Bar
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