ARTÍCULO
TITULO

Influence of fiber volume and subsequent curing on post - crack behavior of an ultra high performance concrete (UHPC)

Nicolas González    
Jesús Castaño    
Yezid Alvarado    
Isabel Gasch    

Resumen

In this paper the performance of an Ultra-High Performance Concrete (UHPC) reinforced with different contents of metal fibers is evaluated. This concrete was produced using materials available in Colombia and conventional manufacturing techniques;, ie no high temperatures or pressures in the manufacturing of different specimens were used. This UHPC was tested for uniaxial compressive strength and flexural strength. Furthermore, we evaluated the behavior of different ages cracked joists of different ages, which were subjected to different curing times in order to determine the residual bending strength., was evaluated. It has been observed We observed that the fiber content and adhesion to be generated between them the fibers and the concrete matrix are matters of great importance, in order to ensure no loss of flexural strength, regardless of the age of the cracking.Rev. ing. constr. [online]. 2014, vol.29, n.3, pp. 220-233. ISSN 0718-5073.  http://dx.doi.org/10.4067/S0718-50732014000300001

 Artículos similares

       
 
Zhao Yang, Jiankun Li, Yilan Zhong and Xiaolong Qi    
Although shape memory alloy/Polyvinyl alcohol (SMA/PVA) hybrid fiber reinforced cementitious composites, (SMA/PVA-ECC) exhibit excellent crack closure and deformation recovery capabilities, however, the research on their fundamental mechanical properties... ver más
Revista: Buildings

 
Timur Agliullin, Vladimir Anfinogentov, Oleg Morozov, Airat Sakhabutdinov, Bulat Valeev, Ayna Niyazgulyeva and Yagmyrguly Garovov    
The work is dedicated to a comparative analysis of the following methods for fiber Bragg grating (FBG) spectral response modeling. The Layer Sweep (LS) method, which is similar to the common layer peeling algorithm, is based on the reflectance and transm... ver más
Revista: Algorithms

 
Gruhalakshmi Yella, Prakash Jadhav and Chhaya Lande    
Bird strikes have long been a source of concern for all airlines across the world. It is the most significant design criterion for aircraft engine fan blades. As it is not practical to manufacture and test aviation engines repeatedly for minor design mod... ver más
Revista: Aerospace

 
Yicong Chen, Jialiang Zhou, Fangzhi Guo, Baochun Chen and Camillo Nuti    
Flexural testing on two prestressed segmental ultra?high?performance concrete channels and reinforced conventional concrete deck composite girders (PSUC?RCCD) was carried out. One was made up of four segments with dry joints, and the other was formed of ... ver más
Revista: Buildings

 
Zhipeng Liang, Huawei Zhou, Chunju Zhao, Fang Wang and Yihong Zhou    
With the influence of intense solar radiation heat and the greater temperature difference between day and night, surface concrete with a drastic temperature change can easily experience a great nonlinear temperature difference, which increases the risk o... ver más
Revista: Buildings