Flexural behavior of concrete slabs strengthened with textile reinforced geopolymer mortar

2022 ◽  
pp. 115220
Author(s):  
Hai Yan Zhang ◽  
Hao Yu Liu ◽  
Venkatesh Kodur ◽  
Meng Yuan Li ◽  
Yun Zhou
2021 ◽  
Vol 676 (1) ◽  
pp. 012060
Author(s):  
Sun Li-xiang ◽  
Lin Peng-zhen ◽  
Yang Zi-jiang ◽  
Liu Ying-long ◽  
Shen Qu

2016 ◽  
Vol 92 ◽  
pp. 46-62 ◽  
Author(s):  
Hai Fang ◽  
Xin Xu ◽  
Weiqing Liu ◽  
Yujun Qi ◽  
Yu Bai ◽  
...  

1996 ◽  
Vol 8 (3) ◽  
pp. 123-127 ◽  
Author(s):  
Abdullah A. Almusallam ◽  
Ahmad S. Al-Gahtani ◽  
Abdur Rauf Aziz ◽  
Fahd H. Dakhil ◽  
Rasheeduzzafar

2018 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Abbas Haraj Mohammed ◽  
Khattab Saleem Abdul-Razzaq ◽  
Taha Khalid Mohammedali ◽  
Dia Eddin Nassani K. ◽  
Ali K. Hussein

Post-Tensioned (PT) method is a widely used technique to prevent cracking and to minimize the deflection which is resulted by loads. In this method, stress is applied after concrete placing and reach adequate hardening and strength. This paper investigates the structural behaviour of PT two-way concrete slabs. The main objective of this study involves a detailed flexural behavior analytical investigation of PT concrete two-way slab with the different bonded tendon layout. This will be achieved by non-linear Finite Element (FE) analysis programs method, to choose the most effective and optimum position of tendon layout with different number of tendons and applied load on the concrete two-way slab. A parametric study was conducted to investigate the effect of tendons layout on the overall behavior of post-tensioned two-way concrete slab. The result obtained from finite element analysis showed that the failure load in PT in both directions increased about 89 % as compared with slab PT in one direction.


2021 ◽  
Vol 11 (17) ◽  
pp. 8235
Author(s):  
Shuichi Fujikura ◽  
Minh Hai Nguyen ◽  
Shotaro Baba ◽  
Hiromi Fujiwara ◽  
Hisao Tategami ◽  
...  

In the replacement of the reinforced concrete slab in existing steel girder bridges, a loop joint is commonly used to join precast concrete slabs on site. However, a relatively wide joint is needed, and considerable time and effort are consumed to construct the joint due to the addition of transverse reinforcements to the joint on site. These disadvantages affect the progress of on-site construction and should be addressed, especially when this method is applied to highway bridges, where early traffic opening is necessary in many cases. This study proposes a narrow loop joint that has fiber-reinforced mortar without transverse reinforcements. Several material tests were conducted to determine a suitable material for the joint. A series of flexural loading tests of slabs was conducted to investigate the flexural behavior of the proposed loop joint with the selected material (polyvinyl alcohol (PVA) fibers). The results showed that the flexural capacity and deformation performance of the proposed joint with PVA fibers are equivalent to those of the conventional loop joint.


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