STUDY OF MULTILAYER CARBON NANOTUBES ON THE STRENGTH CHARACTERISTICS OF THE FIBER-REINFORCED CONCRETE, MANUFACTURED WITH RAW MATERIALS OF NORTH CAUCASUS

Author(s):  
Aleksey Drokov-
Sensors ◽  
2017 ◽  
Vol 17 (11) ◽  
pp. 2481 ◽  
Author(s):  
Ilhwan You ◽  
Doo-Yeol Yoo ◽  
Soonho Kim ◽  
Min-Jae Kim ◽  
Goangseup Zi

2021 ◽  
Vol 1043 ◽  
pp. 61-65
Author(s):  
Tolya Khezhev ◽  
Aslan Kardanov ◽  
Eldar Bolotokov ◽  
Azamat Dottuyev ◽  
Ibrahim Mashfezh

The results of the studies on the creation of self-compacting fine-grained fiber-reinforced concrete based on run-of-crusher stone with the use of a polyfunctional additive D-5 are presented. Compositions of self-compacting fine-grained fiber-reinforced concrete with the use of basalt fiber have been developed, which significantly reduce cement consumption and improve the characteristics of fine-grained concrete mixture and concrete. Using a polyfunctional additive D-5in mixtures makes it possible to increase the strength properties of fine-grained fiber-reinforced concrete while improving the concrete mixtures’ rheological characteristics. Replacement of cement up to 10% of the mass by ash fraction d<0.14 min fine-grained concrete mixtures does not cause a noticeable decrease in the concrete strength properties. The developed self-compacting fine-grained fiber-reinforced concretes have increased strength properties and have a low-cost price due to the use of local raw materials and run-of-crusher stone.


Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7347
Author(s):  
Evgenii M. Shcherban’ ◽  
Sergey A. Stel’makh ◽  
Alexey Beskopylny ◽  
Levon R. Mailyan ◽  
Besarion Meskhi ◽  
...  

A hypothesis was put forward that a nano-modifying additive of micro silica, which had a beneficial effect on achieving a perfect structure of heavy concrete, can also be effectively used in lightweight fiber-reinforced concrete. The nano-modifying additives of micro silica application in manufacturing lightweight fiber reinforced concrete products and structures can significantly enchain their strength characteristics without increasing their mass and consequently improve their design characteristics. The purpose of the work was to increase the structural quality coefficients for all types of strengths of lightweight fiber-reinforced concrete due to its modification with micro silica. The effect of nano-modifying additives of micro silica on the strength characteristics of lightweight fiber reinforced concrete was studied. The optimal amount of micro silica addition was experimentally confirmed and established of 10% of the cement mass. The coefficients of constructive quality for all experimentally determined strength characteristics of lightweight fiber-reinforced concrete modified with micro silica additives were calculated. The coefficient of constructive quality for tensile strength in bending of lightweight fiber reinforced concrete with additives was two and a half times higher than that of heavy concrete without additives and up to 37% higher than that of lightweight fiber-reinforced concrete without additives.


2013 ◽  
Vol 834-836 ◽  
pp. 730-737
Author(s):  
Hai Liang Wang ◽  
Yao Hai Zhong

With the characteristics of wide range of sources of raw materials, environmental protection and cost-effective, Basalt Fiber, which is used as a kind of reinforced material of concrete, has received the attention of civil engineering. This paper summarizes the research status of Basalt Fiber Reinforced Concrete in China and abroad, and put forward proposals for the research of Basalt Fiber Reinforced Concrete.


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