The effect of steel and polypropylene fibers on the chloride diffusivity and drying shrinkage of high-strength concrete

2018 ◽  
Vol 139 ◽  
pp. 84-96 ◽  
Author(s):  
Vahid Afroughsabet ◽  
Luigi Biolzi ◽  
Paulo J.M. Monteiro
Keyword(s):  
High Strength Concrete ◽  
Drying Shrinkage ◽  
High Strength ◽  
Polypropylene Fibers ◽  
Strength Concrete ◽  
Chloride Diffusivity

Effects of Two Polypropylene Fibers on the Properties of High Strength Concrete

2013 ◽  
Vol 357-360 ◽  
pp. 1328-1331
Author(s):  
Bai Rui Zhou ◽  
Dong Dong Han ◽  
Jian Hua Yang ◽  
Yi Liang Peng ◽  
Guo Xin Li
Keyword(s):  
Portland Cement ◽  
Modulus Of Elasticity ◽  
High Strength Concrete ◽  
Polypropylene Fiber ◽  
High Strength ◽  
Polypropylene Fibers ◽  
Strength Concrete ◽  
Reticular Fiber ◽  
Binder Ratio ◽  
Water To Binder Ratio

Portland cement, crushed stone, sand and superplasticizer were used to obtain a high strength concrete with a low water to binder ratio. A reticular polypropylene fiber and a single polypropylene fiber were used to improve the strength of the high strength concrete, but the effects of the two fibers on the slump and strengths were quite different. The reasons of the differences were the surface area and the modulus of elasticity of the fibers. The results show the reticular fiber was better to used in high strength concretes.

Experimental Research on Physical and Mechanical Properties of Steel Fiber High-Strength Concrete

2010 ◽  
Vol 168-170 ◽  
pp. 1061-1064 ◽  
Author(s):  
Yu Dong Wang ◽  
Xiao Chun Fan
Keyword(s):  
High Strength Concrete ◽  
Bending Strength ◽  
Steel Fiber ◽  
Mechanical Performance ◽  
Physical And Mechanical Properties ◽  
Drying Shrinkage ◽  
High Strength ◽  
Engineering Practice ◽  
Strength Concrete ◽  
Mix Proportion

Based on experiment, the mix proportion matching with the design and construction requirements is obtained. It meets with the requirement of pump structure on the basis of meeting the strength requirement. On this basis, the basic physical and mechanical performance is studied and the conclusion is that steel fiber high-strength concrete has excellent resistance to splitting, bending and drying shrinkage. The splitting strength and bending strength of steel fiber high-strength concrete named CF60-2 is respectively 38.7% and 56.8% higher than that of plane concrete named C60. The drying shrinkage rate of CF60-2 is 45.5% lower than that of C60 in three days. The results have an important guiding significance to steel fiber high-strength concrete in theoretical and engineering practice.

scholarly journals Experimental Research on Properties of High Strength Concrete (FRSCC)

2019 ◽  
Vol 8 (6S4) ◽  
pp. 264-266
Keyword(s):  
Impact Strength ◽  
Flexural Strength ◽  
Experimental Research ◽  
High Strength Concrete ◽  
Concrete Structures ◽  
Drying Shrinkage ◽  
High Strength ◽  
Failure Pattern ◽  
Strength Concrete ◽  
Hardened State

SCC and FRC may be classified as superior Concrete because of its special proportions and properties. HPC may be a specialized concrete designed top reduce many edges within the construction of concrete structures that can't continually be achieved habitually mistreatment standard ingredients, traditional mixture & hardening practices. Fibres into SCC will produce FRSCC with superior properties in a fresh and hardened state. The bolstered fibres in concrete might improve the durability, flexural strength, impact strength, toughness, drying shrinkage, and failure pattern of the concrete.

scholarly journals APPLICATION OF HIGH-STRENGTH CONCRETE WITH FIRE RESISTANCE IMPROVED BY POLYPROPYLENE FIBERS

2002 ◽  
Vol 8 (16) ◽  
pp. 17-22 ◽  
Author(s):  
Shusuke KUROIWA ◽  
Hiroshi JINNAI ◽  
Yutaka KOBAYASHI ◽  
Ichizo KAWABATA ◽  
Yasuhiro NISHIKAWA ◽  
...  
Keyword(s):  
Fire Resistance ◽  
High Strength Concrete ◽  
High Strength ◽  
Polypropylene Fibers ◽  
Strength Concrete

scholarly journals Vitality of Steel and Polypropylene Fibers in High Strength Concrete

2019 ◽  
Vol 8 (12) ◽  
pp. 4673-4676
Keyword(s):  
Thermal Insulation ◽  
High Strength Concrete ◽  
Steel Fiber ◽  
Gradual Increase ◽  
High Strength ◽  
Fiber Content ◽  
Steel Fibers ◽  
Polypropylene Fibers ◽  
Strength Concrete ◽  
Concrete Mix

The main aim of this work was to investigate the influence of widely used steel fibers and polypropylene fibers on the concrete. From many studies it has been shown that, addition of fibers to the concrete has influenced the cracking of concrete, due to shrinkage, thermal insulation and bleeding of water. So, in this study we made use of ultra high strength concrete mix of M50, and we made use of both steel as well as polypropylene fibers to enhance the properties of the concrete. In this study total five concrete mixes were made with steel fiber in dosages of 2.5%, 2%, 1.5%, 1% and polypropylene fibers are in dosage 0%, 0.5%, 1%, 1.5% of the weight of concrete mix. The specimens were casted and all the specimens are tested for 7days and 28 days strength. The results have depicted a gradual increase in the strength of the concrete as the fiber content increased

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