scholarly journals Erratum for “Effect of Adhesive through Pilot Pull-Out Tests on Handcrafted Headed Studs Postinstalled in Steel Fiber Concrete” by Aaron Kadima Lukanu Lwa Nzambi, Jeandry Bule Ntuku, and Dênio Ramam Carvalho de Oliveira

Author(s):  
Aaron Kadima Lukanu Lwa Nzambi ◽  
Jeandry Bule Ntuku ◽  
Dênio Ramam Carvalho de Oliveira
Author(s):  
Aaron Kadima Lukanu Lwa Nzambi ◽  
Jeandry Bule Ntuku ◽  
Dênio Ramam Carvalho de Oliveira

2015 ◽  
Vol 723 ◽  
pp. 427-430
Author(s):  
Jun Liu

ANSYS finite element analysis software is used to simulate the pull-out process of hooked-end steel fiber from concret in this paper. The contact element is adapted to simulate the interface contact of fiber and concrete, the effect of concrete matrix damage is ignored, the plastic deformation of fibers is considered and the numerical results is good compared with test results. In addition, the effect of some influencing factor on the pull-out process of fibers such as the interface friction coefficient, elastic modulus of matrix, the tensile strength of steel fiber and concrete shrinkage characteristics are discussed.


2018 ◽  
Vol 2 (3) ◽  
pp. 10-14
Author(s):  
Oleksandr Zhuravskyi ◽  
Andriy Gorobetc

The article presents the results of experimental and theoretical studies of strength and deformability of steel-fiber concrete double-sided pre-stress slabs under the action of transverse loading. The simulation of such plates in the software complex LIRA-SAPR was performed taking into account the physical nonlinearity of materials.


2019 ◽  
Vol 1425 ◽  
pp. 012007 ◽  
Author(s):  
Thanh Quang Khai Lam ◽  
Dung Do Thi My ◽  
Van Thuc Ngo ◽  
Trong Chuc Nguyen ◽  
Trong Phuoc Huynh

2018 ◽  
Vol 251 ◽  
pp. 01031
Author(s):  
Vadim Soloviev ◽  
Marsel Nurtdinov ◽  
Sergey Belikov ◽  
Evgeniy Matyushin

To increase the efficiency of steel-fiber concrete production, the existing technological operations that could reduce the costs should be optimized. This process requires scientific research and analysis of the existing results to improve the efficiency of each production stage. One of the important stages in the steel-fiber concrete production is steam curing, which is responsible for forming the cementitious matrix structure. To increase the efficiency of this production stage, a study was conducted to develop the steam curing conditions according to the rules of steel-fiber concrete structure formation and the methods of improving durability indicators. Tests on several steel-fiber concrete compositions were conducted, and the relations between its thermal conductivity and the reinforcement coefficient of concrete were revealed. The results of the tests let us conclude that with the increase of the reinforcement coefficient its thermal capacity decreases. The temperature gradient charts along the cross-section of samples with different cement/sand ratios and reinforcement coefficients were built. According to the data obtained, the optimal industrial conditions of steam curing were discovered. The dependences determining the increase of mechanical performance of steel-fiber concrete due to the formation of prestressed fiber structure in the material were revealed.


2012 ◽  
Vol 424-425 ◽  
pp. 908-911
Author(s):  
Xian Long Luo ◽  
Li Zeng Li ◽  
Hui Zeng Yin

The spayed concrete is blended with steel fiber,which can improve tensile strength and higher resistance to deformation. This method is applied to support underground chamber surrounded by weak wallrock or chamber bearing great load. this paper accounts for the theory of sprayed steel fiber concrete and its application in tunnelling construction.And aslo, its comprehensive economic effect will be emphasized in comparison with jetting concrete net from the aspects of technology,safety and economy.


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