Assessment of Mechanical and Impact Resistance Properties of Rubberized Concrete After Surface Modification of Rubber Crumb

2021 ◽  
Author(s):  
Rahul Kumar ◽  
Nirendra Dev
Keyword(s):  
Surface Modification ◽  
Impact Resistance ◽  
Rubber Crumb ◽  
Rubberized Concrete

Effects of Surface Modification of Crumb Rubber with Polyvinyl Acetate on Rubberized Concrete

2022 ◽  
Author(s):  
Omid Aghamohammadi ◽  
Davood Mostofinejad ◽  
Sayyed Mahdi Abtahi
Keyword(s):  
Surface Modification ◽  
Polyvinyl Acetate ◽  
Crumb Rubber ◽  
Rubberized Concrete

scholarly journals Impact performance of rubber reinforced concrete with waste steel fibres

2021 ◽  
Vol 1205 (1) ◽  
pp. 012008
Author(s):  
M Drdlova ◽  
P Bibora ◽  
V Prachar
Keyword(s):  
Energy Absorption ◽  
High Performance ◽  
High Performance Concrete ◽  
Impact Resistance ◽  
Partial Replacement ◽  
Mechanical Parameters ◽  
Rubberized Concrete ◽  
Steel Fibres ◽  
Impact Performance ◽  
New Material

Abstract This study introduces cementitious composite with rubber granulate and waste steel fibres as a new material for construction industry with an enhanced energy absorption capability and impact toughness. Detailed research on physico-mechanical properties of high-performance concrete with waste steel fibres and partial replacement of the aggregates by rubber granulate was performed, with emphasis on impact energy absorption potential. Different aggregate replacement ratios (0–30% wt.) and fibre amount (0–3% wt.) were investigated. The influence of rubber sizes, rubber content and steel fibre content on the mechanical parameters of the rubberized concrete at both quasistatic and dynamic loads was evaluated and discussed. With increasing amount of rubber granulate, the concrete suffered from reduction of its mechanical parameters – compressive and flexural strength, however the energy dissipation capability showed rising trend. This study demonstrated the potential of rubberized concrete with waste steel fibres for use in structures with higher impact resistance requirements.

scholarly journals Abrasion Resistance, Flexural Toughness and Impact Resistance of Rubberized Concrete

2020 ◽  
Vol 9 (3) ◽  
pp. 1032-1038
Keyword(s):  
Abrasion Resistance ◽  
Cement Content ◽  
Impact Resistance ◽  
Crumb Rubber ◽  
Rubberized Concrete ◽  
Replacement Level ◽  
Rubber Content ◽  
Flexural Toughness ◽  
Water To Cement Ratio ◽  
Natural Aggregates

This study aimed to investigate abrasion resistance, flexural toughness and impact resistance of concrete mixes with incorporated particles of crumb rubber (CR) as a partial substituent by volume to concrete natural aggregates. Seven concrete mixes were prepared with water to cement ratio 0.4 and cement content 450 kg/m3 . One mix, with no rubber content, was considered as a reference mix to compare the designated mechanical properties of plain rubberized mixes, while the remaining six mixes contained crumb rubber as a partial replacer at levels of 10%, 20% and 30% by volume of each sand and crushed stone aggregates. Abrasion resistance was evaluated according to British standard BS 1338 and impact resistance was measured according to ACI 544.2R. It has been discovered that increasing CR replacement level led to a significant improvement in abrasion resistance, flexural toughness, and impact resistance (number of blows that cause failure cracking). Abrasion lengths decreased by 3.0 - 20.6%, while flexural toughness and impact resistance increased by 8.2 - 39.4% and 18.7 - 365.4% respectively with increasing crumb rubber replacement level.

scholarly journals THE IMPACT OF RUBBER CRUMB ON THE MECHANICAL AND CHEMICAL PROPERTIES OF CONCRETE

2016 ◽  
Vol 7 (4) ◽  
pp. 197-204 ◽  
Author(s):  
Joseph Olawale Akinyele ◽  
Ramadhan Wanjala Salim ◽  
Williams Kehinde Kupolati
Keyword(s):  
Chemical Elements ◽  
Chemical Properties ◽  
Physical And Mechanical Properties ◽  
Rubber Crumb ◽  
Rubberized Concrete ◽  
Edx Analysis ◽  
Waste Rubber ◽  
The Impact ◽  
Rubber Concrete ◽  
And Chemical Properties

Various works have been carried out on both the physical and mechanical properties of rubberized concrete in previous research. But the chemical composition of rubberized concrete has not been fully investigated. The scanning electron microscopy (SEM) and energy-dispersive x-ray spectrum (EDX) analysis were used to determine the element composition and the peak intensity of chemical elements in the waste rubber concrete. The SEM and EDX analysis results showed that, ferrous iron, oxygen, calcium, and silicon were the dominant elements, and these elements reduced as more waste rubber were added to the concrete. Carbon and sulphur elements increased as rubber crumbs were added to the rubberized concrete. The work concluded that the presence of rubber crumb in the concrete samples contributed to both mechanical and chemical changes in the property of rubberized concrete.

Impact resistance of plain and rubberized concrete containing steel and polypropylene hybrid fiber

2020 ◽  
Vol 25 ◽  
pp. 101640 ◽  
Author(s):  
Emad A. Alwesabi ◽  
B.H. Abu Bakar ◽  
Ibrahim M.H. Alshaikh ◽  
Hazizan Md Akil
Keyword(s):  
Impact Resistance ◽  
Rubberized Concrete ◽  
Hybrid Fiber

scholarly journals Effect of Impact Load on Concrete Containing Recycled Tire Rubber Aggregate with and without Fire Exposure

2020 ◽  
Vol 5 (1) ◽  
pp. 49-65
Author(s):  
Muhammad Arf Muhammad ◽  
Wrya Abdulfaraj Abdullah faraj ◽  
Mohamed Raouf Abdul-Kadir
Keyword(s):  
Impact Energy ◽  
Impact Load ◽  
Impact Resistance ◽  
Fire Exposure ◽  
Rubberized Concrete ◽  
Impact Machine ◽  
Tire Rubber ◽  
Final Fracture ◽  
Average Impact ◽  
The Impact

Over one billion tires are disposed into the environment each year and this has become a major environmental issue in the globe. Recycling of these waste tire rubbers in concrete has gained attention from researchers all around the world. In this study, the impact resistance of rubberized concrete exposed to fire is investigated experimentally in the laboratory.  For that purpose, sixty specimens were made with five different mixes replacing their sand content partially with different percentages of tire rubber by weight ratios of 0% control, 6%, 12%, 18% and 24%. The water/cement ratio was kept constant at 0.393 in all the mixes. In each mix, fifteen concrete specimens with the size of (150 x 150 x 73) mm were prepared to expose to fire. Every three specimens were gradually exposed to fire for four various durations of (0, 15, 30, and 45) minutes. Each specimen was then tested in a drop-weight impact machine by dropping 2240-gr and 4500-gr hammers from heights of 280 mm and 450 mm. The average impact energy of three identical specimens required for the occurrence of the final fracture was calculated. The investigational results are compared with results of control samples. It is found that the impact energy considerably increased with an increase of the rubber replacement. It is, also, noted that any increase in the burning period of specimens results in a reduction of the impact energy and more early crushing of the rubberized concrete.

scholarly journals Axial impact behavior and energy absorption of rubberized concrete with/without fiber-reinforced polymer confinement

2018 ◽  
Vol 10 (2) ◽  
pp. 154-173 ◽  
Author(s):  
Thong M Pham ◽  
Mohamed Elchalakani ◽  
Ali Karrech ◽  
Hong Hao
Keyword(s):  
Energy Absorption ◽  
Impact Resistance ◽  
Fiber Reinforced Polymer ◽  
Sustainable Construction ◽  
Rubberized Concrete ◽  
Fiber Reinforced ◽  
Conventional Concrete ◽  
Reinforced Polymer ◽  
Maximum Impact Force ◽  
The Impact

This study investigates the axial impact resistance and energy absorption of rubberized concrete with/without fiber-reinforced polymer confinement. The impact tests were carried out using an instrumented drop-weight testing apparatus. The experimental results have shown that rubberized concrete significantly reduced the maximum impact force of up to 50% and extended the impact duration. These characteristics make rubberized concrete a promising material for protective structures and particularly for future sustainable construction of rigid roadside barriers. Glass fiber–reinforced polymer confinement is a very effective method to improve the impact resistance for both conventional concrete and particularly for rubberized concrete. It was found that the rubberized concrete reduced the maximum impact force so that it transferred a lower force to a protected structure as well as a lower rebound force, which is desirable for protection of passengers in an incident of vehicle collision. Interestingly, the rubberized concrete showed a lower energy absorption capacity as compared to conventional concrete, where the exact reason for this is unknown to the authors. Therefore, further research is sought to provide more understanding of the response of rubberized concrete under impact and improve its energy absorption. This study explored experimentally the use of rubberized concrete as a promising sustainable construction material for applications to construction of columns in buildings located in seismic active zones or subjected to terrorist attack, security bollards and rigid road side barriers.

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