Fiber Concrete for Industrial and Civil Construction

2019 ◽  
Vol 945 ◽  
pp. 120-124 ◽  
Author(s):  
Sergey V. Klyuev ◽  
T.A. Khezhev ◽  
Yu.V. Pukharenko ◽  
A.V. Klyuev
Keyword(s):  
Steel Fiber ◽  
Building Structures ◽  
Deformation Characteristics ◽  
Fine Grained ◽  
Fiber Concrete ◽  
Concrete Mix ◽  
Strength And Deformation ◽  
Reinforcing Fiber ◽  
Industrial Sand ◽  
Optimal Type

In the article the questions of application of a steel fiber for disperse reinforcing of fine-grained concrete are considered. Main filler of a fiber concrete mix was the KMA industrial sand enriched with sand. The carried-out researches showed advantage of a steel wave fiber before the anchor and flat milled. The optimal type of fiber is revealed, in which the greatest increase of strength and deformation characteristics is observed. Thus, it can be concluded that the type of steel reinforcing fiber and its shape have a significant impact on the length of building structures and buildings as a whole.

scholarly journals The effect of the type of fixators reinforcement on strength and deformation characteristics of reinforced concrete

2019 ◽  
Vol 97 ◽  
pp. 02034
Author(s):  
Evgenij Borisyuk
Keyword(s):  
Reinforced Concrete ◽  
Crack Resistance ◽  
Steel Reinforcement ◽  
Low Grade ◽  
High Grade ◽  
Building Structures ◽  
Deformation Characteristics ◽  
Reliable Operation ◽  
Different Types ◽  
Strength And Deformation

Rebar fixators of various types (plastic and concrete) became widespread with manufacturing of building structures of precast and monolithic reinforced concrete in order to fix steel reinforcement cage in strictly design position and to exclude the probability of its displacement during concreting. Such sufficiently rigid fixing is necessary for the following reliable operation of the structure in the building, as well as for the preservation of steel reinforcement which protected by a necessary layer of concrete from corrosion. Information available in the literature does not allow us to judge about the effects that different types of fixators apply to exploitative properties (such as strength and crack resistance) of reinforced concrete. The experiments, according to the accepted method, showed that these characteristics are slightly worse for the samples with plastic fixators and fixators made of low grade concrete than for the samples without fixators or fixators made of high grade concrete. On the base on the research results it becomes possible to substantiate the distinction between the areas of application of plastic and concrete fixatives

scholarly journals Strength and deformation characteristics of fiber concrete modified with a peat additive

2020 ◽  
Vol 905 ◽  
pp. 012013
Author(s):  
O V Demyanenko ◽  
N P Gorlenko ◽  
Yu S Sarkisov ◽  
N O Kopanitsa ◽  
G L Gorynin ◽  
...  
Keyword(s):  
Deformation Characteristics ◽  
Fiber Concrete ◽  
Strength And Deformation

scholarly journals Fine-grained concrete with combined reinforcement by different types of fibers

2018 ◽  
Vol 245 ◽  
pp. 03006 ◽  
Author(s):  
Sergey Klyuev ◽  
Alexander Klyuev ◽  
Nikolai Vatin
Keyword(s):  
Compressive Strength ◽  
Magnetic Anomaly ◽  
Steel Fiber ◽  
Polypropylene Fiber ◽  
Kursk Magnetic Anomaly ◽  
Fine Grained ◽  
Fibre Concrete ◽  
Strength And Deformation ◽  
The Cost ◽  
Selection Of

The article deals with the application of combined reinforcement of fi-ne-grained concrete with steel wave and polypropylene fibers. High-density packaging of the mixture components was used to improve the strength and deformation characteristics. In order to reduce the cost of fibre concrete, composite binders were developed. Rational selection of filler and the use of a steel wave fiber gave the opportunity to get the fibre concrete with tensile compressive strength – 84.8 MPa, the tensile strength in bending – 19.8 MPa on technogenic sands of the Kursk Magnetic Anomaly. With combined reinforcement by steel and polypropylene fiber on technogenic sands of the Kursk magnetic anomaly fibre concrete with a tensile compressive strength – 82.8 MPa, in bending – 19.1 MPa was developed. With the same strength charac-teristics the developed mixture of fibre concrete based on combined re-inforcement due to reducing the amount of steel fiber at cost is lower by 25% compared to the composition on steel fiber and the same com-posite binder.

METHOD FOR CONSTRUCTION OF ISOCHRONDIAGRAMS OF HIGH-STRENGTH STEEL FIBER CONCRETE AND ITS MATRIX

2020 ◽  
Vol 91 (5) ◽  
pp. 32-45
Author(s):  
G.A. MOISEENKO ◽  
Keyword(s):  
High Strength Steel ◽  
High Strength Concrete ◽  
Steel Fiber ◽  
High Strength ◽  
Good Convergence ◽  
Strength Concrete ◽  
Fine Grained ◽  
Modern Engineering ◽  
Fiber Concrete ◽  
Steel Fiber Concrete

High-strength steel fiber concrete, made on the basis of fine-grained high-strength concrete, is a quite promising building material, in particular, for the construction of high-rise buildings and structures of increased massiveness. The introduction of steel fiber into the concrete matrix can significantly reduce the influence of such shortcomings of fine-grained concrete as increased fragility and explosive nature of fracture, and also positively affects the tensile properties of concrete. However, the widespread use of high-strength steel fiber concrete is currently limited, among other things, by the lack of an experimentally relied normative framework for this material. The proposed article aims to bridge this gap. Modern engineering trends are aimed at introducing into practice diagram methods of calculation based on real diagrams of material deformation under load. This article describes the technique of constructing isochron diagrams for fine-grained high-strength concrete and steel fiber concrete with disperse reinforcement in the amount of 1.5% by weight, made from Russian-made components. Isochron diagrams allow you to calculate the deformation of the material depending on the level of load at any time, including during prolonged loading. There have been made changes to the existing methodology, allowing to take into account the nonlinearity of both current and ultimate creep characteristics depending on the level of loading. The proposed theoretical dependences give good convergence with the experimental data.

Sign in / Sign up

Export Citation Format

Share Document