The Effectiveness of Basalt Fiber in Lightweight Expanded Clay to Improve the Strength of Concrete Helicoidal Staircase

2021 ◽  
Vol 1034 ◽  
pp. 187-192
Author(s):  
Paschal Chimeremeze Chiadighikaobi ◽  
Vladimir Jean Paul ◽  
Christopher Kneel Stewart Brown
Keyword(s):  
Flexural Strength ◽  
Building Materials ◽  
Lightweight Concrete ◽  
Basalt Fiber ◽  
Structural Element ◽  
Finite Element Software ◽  
Fiber Concrete ◽  
Properties Of Materials ◽  
Helicoidal Structure ◽  
Chopped Basalt Fiber

Staircase is a very important structural element found in mostly buildings of more than a floor. The properties of materials and designs used in constructing this structural element are very important. This study addresses the development of ultra-lightweight concrete. How ultra-lightweight concrete can effectively work in helicoidal structure. The flexural strength of this staircase was analysed on a finite element software SCAD. The designed lightweight aggregates concrete is targeted to be used in staircase of a structure having the shape of helicoid. In the concrete, chopped basalt fiber portion was added to each concrete mixture specimen reinforced as reinforcement. The basalt fiber percentages used are 0, 0.45, 0.9, 1.2 and 1.6. The developed lightweight expanded clay basalt fiber concrete showed significant increase in the flexural strength. The loads applied on this helicoidal concrete staircase in SCAD were derived from the laboratory experiments conducted on the concrete specimens on the 28 days curing period. This combination of values exceeds, to the researchers' knowledge, the performance of all other lightweight building materials. Furthermore, the developed lightweight concrete possesses excellent durability properties.

Bending Resistance of Short-Chopped Basalt Fiber Hydraulic Concrete and RC Element

2011 ◽  
Vol 261-263 ◽  
pp. 407-410 ◽  
Author(s):  
Jun Zhi Zhang ◽  
Hua Ting Liu ◽  
Yan Dong Zhu ◽  
Zhao Qi Fu ◽  
Jing Zhao
Keyword(s):  
Elastic Modulus ◽  
Bending Strength ◽  
Basalt Fiber ◽  
Experimental Results ◽  
Rc Beams ◽  
Reinforcing Effect ◽  
Hydraulic Concrete ◽  
Bending Resistance ◽  
Fiber Concrete ◽  
Chopped Basalt Fiber

According to a series experiment for bending resistance of hydraulic concrete and RC element of mixing short-chopped basalt fiber, the reinforcing effect of bending strength and flexural elastic modulus of short-chopped basalt fiber concrete are analyzed, and increased cracking-resistance loads of short-chopped basalt fiber RC beams is also researched. Experimental results show that bending resistances of short-chopped basalt fiber concrete are increased, short-chopped basalt fiber in concrete is useful to reinforce the bending strength of concrete and cracking loads of RC beams.

scholarly journals Application of an artificial neural network for predicting compressive and flexural strength of basalt fiber added lightweight concrete

2021 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Gokhan Calis ◽  
Sadık Alper Yıldızel ◽  
Ülkü Sultan Keskin
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Flexural Strength ◽  
Lightweight Concrete ◽  
Basalt Fiber ◽  
Good Alternative ◽  
Superior Performance ◽  
Contributing Factors ◽  
Artificial Neural ◽  
Compressive And Flexural Strengths

Concrete is known as one of the fundamental materials in construction with its high amount of use. Lightweight concrete (LWC) can be a good alternative in reducing the environmental effect of concrete by decreasing the self-weight and dimensions of the structure. In order to reduce self-weight of concrete artificial aggregates, some of which are produced from waste materials, are utilized, and it also contributes to develop a sustainable material Artificial neural networks have been the focus of many scholars for long time with the purpose of analyzing and predicting the lightweight concrete compressive and flexural strengths. The artificial neural network is more powerful method in terms of providing explanation and prediction in engineering studies. It is proved that the error rate of ANN is smaller than regression method. Furthermore, ANN has superior performance over nonlinear regression model. In this paper, an ANN based system is proposed in order to provide a better understanding of basalt fiber reinforced lightweight concrete. In the regression analysis predicted vs. experimental flexural strength, R-sqr is determined to be 86%. The most important strength contributing factors were analyzed within the scope of this study.

scholarly journals The Effect of Addition on Pumice and Fiber on Compressive and Fluxural Strength Precast Lightweight Concrete

2020 ◽  
Vol 5 (1) ◽  
pp. 14
Author(s):  
Indrayani Indrayani ◽  
Andi Herius ◽  
Arfan Hasan ◽  
Ahmad Mirza
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Specific Gravity ◽  
Building Material ◽  
Lightweight Concrete ◽  
Test Results ◽  
Fiber Concrete ◽  
The Government ◽  
Flexural Tests ◽  
Compressive Tests

Most of the construction uses concrete as the main building material because concrete has many advantages compared to other materials. Concrete has a high enough weight, various attempts were made to reduce the weight of the concrete for example using lightweight aggregates or concrete made without sand or concrete made hollow Innovations in the development of precast lightweight concrete are urgently needed at this time to support the development of development that is being carried out by the government. From the studies that have been carried out on lightweight concrete and fiber concrete, this research will develop the results of previous studies, namely by combining lightweight concrete and fiber concrete to obtain precast lightweight concrete. This research was conducted to find out how much influence the use of pumice and and fiber on compressive strength and flexural strength of precast lightweight concrete. Variations in the addition of a mixture of pumice with aggregate are divided into 4  comparisons, namely 0: 100, 20: 80, 40: 60, 60: 40, where each mixture is added 0.1% fiber from the volume of concrete, then printed in cube and beam molds.  Compressive tests were carried out on the cube and flexural tests were carried out on beams. From the test results was obtained that the addition of pumice to the concrete mixture can cause a decrease in compressive strength of the concrete from 202 kg/cm2 to 129 kg/cm2 whereas with the addition of fiber there is an increase in flexural strength is 24.48 kg/cm2. The specific gravity obtained is 1.664 gr/cm3 so this concrete can be classified into lightweight concrete.

scholarly journals Compressive strength of lightweight expanded polystyrene basalt fiber concrete

2020 ◽  
Vol 329 ◽  
pp. 04010
Author(s):  
Galina Okolnikova ◽  
Lina Abass Saad ◽  
Majeed M. Haidar ◽  
Fouad adnan noman Abdullah Al-shaibani
Keyword(s):  
Compressive Strength ◽  
Lightweight Concrete ◽  
Polypropylene Fiber ◽  
Basalt Fiber ◽  
Expanded Polystyrene ◽  
Noticeable Effect ◽  
Lower Weight ◽  
Fiber Concrete ◽  
Concrete Mix ◽  
Research Show

The ability of concrete to give a lower weight and retain good properties for strength is very important concrete structures. Lightweight concrete is known for its brittleness hence the strengthening of the concrete with dispersed chopped fiber is necessary. The addition of dispersed chopped fiber in polystyrene concrete to check the effect of the fiber this concrete the main objective of this paper. The experimental method of research was used in this research paper after a proper review of previous works by other researchers were done. 42 grams of fiber were added in the concrete mix of each composition. The results of this research show a noticeable effect of fiber in the lightweight expanded polystyrene concrete. The concrete without fiber showed the best compressive strength followed by the concrete with dispersed polypropylene fiber.

Development of Functionally Graded Concrete Using Rubber Fiber

2021 ◽  
Vol 1019 ◽  
pp. 62-72
Author(s):  
Sumit Choudhary ◽  
Abhishek Jain ◽  
Sandeep Chaudhary ◽  
Rajesh Gupta
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Functionally Graded ◽  
Depth Of Penetration ◽  
Fine Aggregates ◽  
Crushed Granite ◽  
Fiber Concrete ◽  
Properties Of Materials ◽  
Hardened Properties ◽  
Bottom Portion

The current study investigates the functionally graded concrete (FGC) prepared using waste rubber tyre fibers as replacement of fine aggregates (FA) at a constant w/c ratio of 0.45. FGC is a continuously graded concrete which has different properties either in top or bottom portion according to the properties of materials added. Different materials like fly ash, steel fibers, glass granules, crushed granite aggregates, etc., has been utilized by different researchers to prepare FGC. The percentage replacement of rubber fibers used was 0-20% at 5% intervals and 30% to prepare control concrete (CC), rubber fiber concrete (RFC) and rubberized functionally graded concrete (RFGC). The fresh and hardened properties were performed on the concrete samples for the detailed analysis. Workability, density, compressive strength, flexural strength and water permeability tests were conducted on the different types of concrete. Flexural strength was better observed for RFC and RFGC as compared to CC. Compressive strength and depth of penetration values decreased with the addition of rubber fibers, however, RFGC had better values as compared to RFC. Study concluded that RFGC could be a sustainable approach towards the construction were flexural strength is mainly required.

Experimental Study on Impermeability Performance of Chopped Basalt Fiber Reinforced Concrete

2013 ◽  
Vol 834-836 ◽  
pp. 726-729
Author(s):  
Hai Liang Wang ◽  
Lei Yuan
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Experimental Test ◽  
Polypropylene Fiber ◽  
Basalt Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Fiber Concrete ◽  
Chopped Basalt Fiber

This paper studies on the influence of impermeability in basalt fiber of C50 concrete, and the result was compared with the same dosage of polypropylene fiber. Experimental test show that after incorporating basalt fiber and polypropylene fiber concrete impermeability resistance were significantly improved, the impermeability of polypropylene fiber is superior to basalt fiber.

FLEXURAL STRENGTH OF SPECIAL REINFORCED LIGHTWEIGHT CONCRETE BEAM FOR INDUSTRIALISED BUILDING SYSTEM (IBS)

2015 ◽  
Vol 77 (1) ◽  
Author(s):  
Chun-Chieh Yip ◽  
Abdul Kadir Marsono ◽  
Jing-Ying Wong ◽  
Mugahed Y. H. Amran
Keyword(s):  
Finite Element ◽  
Flexural Strength ◽  
Concrete Beam ◽  
Lightweight Concrete ◽  
Von Mises Stress ◽  
Experimental Result ◽  
Lightweight Aggregate Concrete ◽  
Element Analysis ◽  
Finite Element Software ◽  
Building System

Special reinforced lightweight aggregate concrete (SRLWAC) beam is designed as beam component in Industrialised Building System (IBS). It is used to overcome the difficulties during the component installation due to the heavy lifting task. This paper presents the flexural strength and performance of SRLWAC beam under vertical static load. SRLWAC beam was set-up on two columns corbel and tested under monotonic vertical load. Five Linear Variable Displacement Transducers (LVDTs) were instrumented in the model to record displacement. The ultimate flexural capacity of the beam was obtained at the end of experiment where failure occurred. Performance of the beam was evaluated in load-displacement relationship of beam and mode of failure. SRLWAC beam was then modelled and simulated by nonlinear finite element software- Autodesk Simulation Mechanical. Result from finite element analysis was verified by experimental result. Maximum mid-span displacement, Von-Mises stress, concrete maximum principal stress, and yielding strength of reinforcement were discussed in this paper. The beam was behaved elastically up to 90 kN and deformed plastically until ultimate capacity of 250.1 kN in experimental test. The maximum mid span displacement for experimental and simulation were 15.21 mm and 15.36 mm respectively. The major failure of IBS SRLWAC beam was the splitting of the concrete and yielding of main reinforcements at overlay end. Ductility ratio of IBS SRLWAC beam was 14.2, which was higher than pre-stressed concrete beam.

Numerical Analysis of Mechanical Properties of Chopped Basalt Fiber Reinforced Concrete

2019 ◽  
Vol 815 ◽  
pp. 175-181
Author(s):  
Wei Chen ◽  
Zi Chong Zhu ◽  
Jun Wang ◽  
Jia Chen ◽  
You Mo
Keyword(s):  
Mechanical Properties ◽  
Mechanical Test ◽  
Great Influence ◽  
Basalt Fiber ◽  
Fiber Reinforced Concrete ◽  
Flexural Test ◽  
Fiber Concrete ◽  
Simulation Results ◽  
Working Performance ◽  
Chopped Basalt Fiber

In order to study the influence of the blending of chopped basalt fiber on the mechanical properties of concrete, this paper uses basalt fiber content as a variable to simulate the basalt fiber concrete. Simulate its cubic compression, axial compression, splitting tensile, flexural test and working performance, and compare the simulation results with other people's physical and mechanical test data. The results show that the addition of basalt fiber has a great influence on the crack resistance and mechanical properties of concrete.

scholarly journals Improving the compressive strength of lightweight cylindrical concrete column with basalt fiber reinforced polymer acting under imposed load

2020 ◽  
Vol 16 (5) ◽  
pp. 424-434
Author(s):  
Paschal C. Chiadighikaobi
Keyword(s):  
Lightweight Concrete ◽  
Basalt Fiber ◽  
Concrete Columns ◽  
Fiber Reinforced Polymer ◽  
Concrete Column ◽  
Reinforced Polymer ◽  
The Moment ◽  
Chopped Basalt Fiber ◽  
Structural Engineers ◽  
Fiber Mesh

Relevance. The brittleness of lightweight concrete has developed concern among structural engineers. This concern led to the search on how to improve the strength of lightweight concrete and still retain the weight lightness. Researches are ongoing to solve the strength challenges noticed in lightweight concrete, but at the moment there are few works on solving the issues regarding expanded clay concrete, thus it served as a motivation for studying this issue. The aim of the work is to analyze the effects of basalt fiber polymers on lightweight expanded clay concrete columns acting under imposed loads. Methods. To achieve this process, a total number of nine expanded clay cylindrical concrete columns were experimentalized and analyzed. 1.6 % of dispersed chopped basalt fiber was used in the concrete mixture which serves as reinforcement. Also, basalt fiber mesh was used in the experimental analysis. Results. The expanded clay cylindrical column without basalt fiber polymer withstood strength up to 19.6 tons at 58 minutes, the column with dispersed chopped basalt fiber withstood strength up to 26.67 tons at 61 minutes while the column with dispersed chopped basalt fiber and basalt mesh confinement got destroyed at 29 tons at 64 minutes. The results show that lightweight expanded clay cylindrical columns confined with basalt fiber mesh withstood higher load compared to the columns with just dispersed chopped basalt fiber and without it.

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