Reinforcement-matrix interactions and their consequences on the mechanical behavior of basalt fibers-cement composites

2021 ◽  
Vol 309 ◽  
pp. 125103
Author(s):  
M. Iorio ◽  
F. Marra ◽  
M.L. Santarelli ◽  
J. González-Benito
Keyword(s):  
Mechanical Behavior ◽  
Cement Composites ◽  
Basalt Fibers ◽  
Matrix Interactions

Mechanical behavior of cement composites reinforced by aligned Enset fibers

2021 ◽  
Vol 304 ◽  
pp. 124607
Author(s):  
Markos Tsegaye Beyene ◽  
Michael El Kadi ◽  
Tamene Adugna Demissie ◽  
Danny Van Hemelrijck ◽  
Tine Tysmans
Keyword(s):  
Mechanical Behavior ◽  
Cement Composites

Pitch-based carbon fiber reinforced cements: structure, performance, applications, and research needs

1992 ◽  
Vol 19 (1) ◽  
pp. 26-38 ◽  
Author(s):  
Nemkumar Banthia
Keyword(s):  
Carbon Fiber ◽  
Physical Properties ◽  
Mechanical Behavior ◽  
Key Words ◽  
Carbon Fibers ◽  
Fiber Reinforcement ◽  
Performance Characteristics ◽  
Future Research ◽  
Cement Composites ◽  
Research Needs

The improvements in the performance characteristics of cements due to carbon fiber reinforcement are described. In particular, the structure, the physical properties, the mechanical behavior, and the durability aspects of carbon–cement composites using pitch-based fibers are discussed. The various possible applications of these composites in structural and nonstructural applications are enumerated. The future research needs are identified. Key words: cements, carbon fibers, microstructure, strength, toughness, durability, applications.

High Temperature Composite of Aluminous Cement with Addition of Metakaolin and Ground Bricks Dust

2013 ◽  
Vol 486 ◽  
pp. 406-411 ◽  
Author(s):  
Ondřej Holčapek ◽  
Pavel Reiterman ◽  
Petr Konvalinka
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
High Temperatures ◽  
Raw Materials ◽  
Cement Composites ◽  
Basalt Fibers ◽  
Aluminous Cement ◽  
The Common ◽  
Temperature Exposure ◽  
Sufficient Strength

The following article deals with the study of mechanical properties of aluminous cement composites exposure to high temperatures. The newly designed mixtures that resist the action of high temperatures 1000 °C find their application in various fields of industrial production or in the form of fire wall for protection bearing structures. All the mechanical properties such as compressive strength and tensile strength in bending were measured on samples 160x40x40 mm. These samples were exposed to temperatures 600 °C and 1000 °C and one group of samples was reference and stayed in laboratory condition. Aluminous cement unlike the common Portland cement keeps sufficient strength even after high temperature exposure. For ensuring required ductility the basalt fibers were added to the mixture. In an effort to use of secondary raw materials as a replacement for cement as well as a suitable binder was used metakaolin and ground brick dust. Very convenient characteristics of these components are their latent hydraulic potential that makes interesting hydration products.

Mechanical behavior of multilayer GO carbon-fiber cement composites

2018 ◽  
Vol 159 ◽  
pp. 205-212 ◽  
Author(s):  
Zeng-shun Chen ◽  
Xiao Zhou ◽  
Xu Wang ◽  
Peng Guo
Keyword(s):  
Carbon Fiber ◽  
Mechanical Behavior ◽  
Cement Composites

Behavior of Cement Composites Loaded by High Temperature

2015 ◽  
Vol 824 ◽  
pp. 121-125
Author(s):  
Veronika Špedlová ◽  
Dana Koňáková
Keyword(s):  
High Temperature ◽  
Portland Cement ◽  
High Temperatures ◽  
Experimental Program ◽  
Mechanical And Thermal Properties ◽  
Cement Composites ◽  
Basalt Fibers ◽  
Coefficient Of Thermal Conductivity ◽  
Aluminous Cement ◽  
Better Than

In this paper, there are summarized the results of an experimental program focused on basic, mechanical and thermal properties of cement composites according to the high – temperature loading. Four different materials were studied, which differed in used kind of cement and amount of fibers. As a matrix for studied composites the aluminous cement was chosen because of its resistance in high temperature. For a comparison the Portland cement was also tested. The second main ingredient used to provide better resistance in high temperatures - the basalt aggregate, was mixed in every specimen. The basalt fibers were chosen for two of the measured samples, remaining two ones were tested without fibers. The obtained data in this presented analyses show that the application of the aluminous cement leads to increase (depending on temperature) of porosity, which is the cause of decreasing of the coefficient of thermal conductivity. It can seems, that these cement composites will have low mechanical strength in high temperatures, but because of better sintering, the aluminous cement keeps its strength in high temperatures better than Portland cement.

scholarly journals Mechanical behavior of basalt fibers in a basalt-UP composite

2016 ◽  
Vol 1 ◽  
pp. 82-89 ◽  
Author(s):  
B. Soares ◽  
R. Preto ◽  
L. Sousa ◽  
L. Reis
Keyword(s):  
Mechanical Behavior ◽  
Basalt Fibers

A Simplified Strain Energy Function to Represent the Mechanical Behavior of the Annulus Fibrosus

2009 ◽  
Author(s):  
Jose J. García ◽  
Christian Puttlitz
Keyword(s):  
Finite Element ◽  
Mechanical Behavior ◽  
Energy Function ◽  
Annulus Fibrosus ◽  
Strain Energy ◽  
Degrees Of Freedom ◽  
Strain Energy Function ◽  
Efficient Simulation ◽  
Matrix Interactions ◽  
Complex Functions

Models to represent the mechanical behavior of the annulus fibrosus are important tools to understand the biomechanics of the spine. Many hyperelastic constitutive equations have been proposed to simulate the mechanical behavior of the annulus that incorporate the anisotropic nature of the tissue. Recent approaches [1,2] have included terms into the energy function which take into account fiber-fiber and fiber-matrix interactions, leading to complex functions that cannot be readily implemented into commercial finite element codes for an efficient simulation of nonlinear realistic models of the spine (which are generally composed of 100,000+ degrees of freedom). An effort is undertaken here to test the capability of a relatively simple strain energy function [3] for the description of the annulus fibrosus. This function has already been shown to successfully represent the mechanical behavior of the arterial tissue and can be readily implemented into existing finite element codes.

Comparison of Refractory and Non-Refractory Components in Cement Composites after High Temperatures Load

2014 ◽  
Vol 1054 ◽  
pp. 33-36 ◽  
Author(s):  
Ondřej Holčapek ◽  
Pavel Reiterman ◽  
Marcel Jogl ◽  
Petr Konvalinka
Keyword(s):  
Mechanical Properties ◽  
Portland Cement ◽  
High Alumina ◽  
Experimental Program ◽  
Cement Composites ◽  
Basalt Fibers ◽  
Temperature Load ◽  
The Difference ◽  
Strength In Bending

This article shows results of experimental program focused on determination of refractory and non-refractory components for cement composites and those influence on final properties. According to several research works from various universities strength and cohesion in general of common concrete rapidly decrease with temperature higher than 600 °C. To determine the difference between fire-resistance and common components four mixtures were designed. Non-refractory crushed nature silica aggregates and Portland cement compared to high alumina cement Secar®71 with crushed nature basalt aggregates were used. Combination of basalt fibers with two different lengths significantly improves. Basic mechanical properties tensile characteristics such as tensile strength in bending and compressive strength were examined on samples 40 x 40 x 160 mm. Exposure to 600 °C and especially 1000 °C in electric furnace for three hours simulated the high temperature load. Compared to silica aggregates together with Portland cement, where after1000 °C the composite is disintegrated with almost zero strength, the refractory components show considerably better parameters.

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