Tensile properties of cracked reactive powder concrete in corrosive environment - effects of crack width and exposure duration

2020 ◽  
pp. 121635
Author(s):  
Wonsik Shin ◽  
Doo-Yeol Yoo
Keyword(s):  
Tensile Properties ◽  
Exposure Duration ◽  
Crack Width ◽  
Reactive Powder Concrete ◽  
Corrosive Environment ◽  
Environment Effects ◽  
Reactive Powder

Brief Analysis on Crack of Unbonded Partially Prestressed RPC Beam

2012 ◽  
Vol 238 ◽  
pp. 181-184 ◽  
Author(s):  
Qiang Fu ◽  
Bing Feng Lv ◽  
Xia Cao ◽  
Ling Zhi Jin ◽  
Ning Deng
Keyword(s):  
Experimental Research ◽  
Prestressed Concrete ◽  
Concrete Structure ◽  
Crack Width ◽  
Reduction Factor ◽  
Reactive Powder Concrete ◽  
High Toughness ◽  
High Durability ◽  
Reactive Powder

Reactive Powder Concrete (RPC) has excellent properties such as high toughness and high durability. In this paper, based on the experimental research of the different unbonded prestressed tendons of the unbonded partially prestressed RPC beams, the crack calculation of prestressed RPC beams is analyzed. The results show that the crack regulation is special in some extent of the unbonded partially prestressed RPC beams. It is suggested that the crack width of unbonded partially prestressed RPC beams calculated in accordance with the specification for unbounded partially prestressed concrete structure should multiply the reduction factor of 0.7.

Fatigue behavior of unbonded prestressed reactive powder concrete beams after creep

2020 ◽  
Vol 62 (9) ◽  
pp. 951-956
Author(s):  
Luo Xuguo ◽  
Tan Zheng Long ◽  
Y. Frank Chen
Keyword(s):  
Concrete Beams ◽  
Fatigue Behavior ◽  
Reactive Powder Concrete ◽  
Reactive Powder

Analysis of Two Cross Arm of Reactive Powder Concrete Pole Design with Structure Materials in Civil Engineering

2012 ◽  
Vol 568 ◽  
pp. 39-42
Author(s):  
Yu Zhuo Jia ◽  
Li Lin
Keyword(s):  
Mechanical Properties ◽  
Stress State ◽  
Structural Analysis ◽  
Transmission Line ◽  
Operating Conditions ◽  
Reactive Powder Concrete ◽  
Analysis Software ◽  
Technical Performance ◽  
Reduced Height ◽  
Reactive Powder

SAP2000 structural analysis software is used to designed two of 500kV partially prestressed reactive powder concrete pole cross arm; moreover, poles of the two cross arm program have been compared. The results show that the triangular truss cross arm has good mechanical properties, improving the main mate’rial of the stress state, the pole reduced height 10m, by the analysis of the structure shows, this cross arm has higher reliability under the operating conditions, which can be used in 500kV transmission line; from economic and technical performance, the pole cost of this program is greatly reduced, while speeding up the construction progress and improving the comprehensive benefits of the poles in the transmission line.

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