scholarly journals Tests on workability and strength of high strength-flowable concrete containing PET waste fiber

2020 ◽  
Vol 7 (3) ◽  
pp. 115-139
Author(s):  
Sarkawt Karim ◽  
◽  
Azad Mohammed ◽  
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Fiber Length ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Time Increase ◽  
Fiber Volume ◽  
Split Tensile Strength ◽  
Pet Waste ◽  
Strength Tests

This study describes two workability tests, compressive strength and tensile strength tests of high strength flowable concrete containing plastic fiber prepared from polyethylene terephthalate (PET) waste bottles. For the high fluidity mix Vebe time and V-funnel time tests were carried out. Results show that there is a Vebe time increase with PET fiber addition to concrete being increased with increasing fiber volume and fiber length. V-funnel time was found to reduce when up to 0.75% fiber volume is added to concrete, followed by an increase for larger fiber volumes. When fiber length is increase, there is more time increase, but in general, V-funnel time increase was lower than that of Vebe time, indicating a different influence of PET fiber on the compatibility and flowability. The measured V-funnel time for all mixes was found to conform to the limits of European specifications on the flowability of self compacting concrete. Small descending in compressive strength was recorded for RPET fiber reinforced concrete that reached 15.74 % for 1.5 percent fiber content with 10 mm fiber length. Attractive results was recorded in split tensile strength of RPET fibrous samples which resulted in improvement up to 63.3 % for 1.5 percent of 40 mm fiber length content.

Compressive Properties of High Strength Steel Fiber Reinforced Concrete with Different Fiber Volume Fractions

2013 ◽  
Vol 372 ◽  
pp. 215-218 ◽  
Author(s):  
Hye Ran Kim ◽  
Seung Ju Han ◽  
Hyun Do Yun
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
High Strength Steel ◽  
Steel Fiber ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Experimental Results ◽  
Steel Fiber Reinforced Concrete ◽  
Fiber Volume ◽  
Volume Fractions

This paper describes the experimental results of 70 MPa high strength steel fiber reinforced concrete (SFRC) with different steel fiber volume fractions in compression. The effect of steel fiber on fresh properties, compressive strength, toughness index, cracking procedure of high strength steel fiber concrete is also investigated. The steel fibers were added as the volume fractions of 0%, 0.5%, 1.0%, 1.5% and 2.0%. The cylindrical specimens with Φ100 x 200 for compressive tests were manufactured in accordance with ASTM C 39[. The experimental results showed that the slump of fresh SFRC was inversely proportional to the fiber volume fraction added to high strength concrete. As the addition of steel fiber increased, compressive strength of SFRC decreased. Inclusion of steel fiber improves compressive toughness of high strength SFRC.

Polyester Fibers in the Concrete an Experimental Investigation

2011 ◽  
Vol 261-263 ◽  
pp. 125-129 ◽  
Author(s):  
Venu Malagavelli ◽  
Neelakanteswara Rao Paturu
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Crack Resistance ◽  
Industrial Waste ◽  
Fiber Reinforced Concrete ◽  
Split Tensile Strength ◽  
Biodegradable Waste ◽  
Polyester Fibers

Construction field has experienced a growing interest in Fiber Reinforced Concrete (FRC) due to its various advantages. The disposal of industrial waste especially non biodegradable waste is creating a lot of problems in the environment. In the present investigation, an attempt has been made by using non biodegradable waste (polyester fibers) in the concrete to improve the crack resistance and strength. Concrete having compressive strength of 25MPa is used for this study. Samples were prepared by using various fiber contents starting from 0 to 6% of with an increment of 0.5% for finding Compressive strength, split tensile strength and flexural strengths. It is observed that, compressive strength, split tensile strength and flexural strengths of concretes is increasing as the fiber content is increased up to some extent.

scholarly journals Characteristics of PVC Coated Welded Wire Mesh Fiber Reinforced Concrete

2019 ◽  
Vol 21 (1) ◽  
pp. 50-56
Author(s):  
Indradi Wijatmiko ◽  
Ari Wibowo ◽  
Christin Remayanti Nainggolan
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Elastic Modulus ◽  
Fiber Reinforced Concrete ◽  
Wire Mesh ◽  
Fibrous Materials ◽  
Strength Tests ◽  
Fiber Concrete ◽  
Strain Stress ◽  
Mesh Fiber

Fiber concrete containing fibrous materials is manufactured to improve the low tensile strength of concrete and its brittle properties. In this research, fiber obtained from PVC coated welded wire mesh with diameter of 1 mm was utilized. There were several variations of fiber concrete samples made. Samples were subjected to tensile and compressive strength tests. The elastic modulus was measured by using extensometer and strain-stress gauges. The results show that the incorporation of PVC coated welded wire mesh increases the tensile strength of concrete, when the percentage of the fiber is 1.5%, with the length of 3.6cm, and the interlocking of 1.2cm. However, the compressive strength is slightly reduced from the normal ones. The elastic modulus results show that the introduction of PVC coated welded wire mesh tends to reduce the flexibility, as the value reduced 15-50% as compared to the normal ones without any fiber

scholarly journals Performance of sustainable self-compacting fiber reinforced concrete with substitution of marble waste (MW) and coconut fibers (CFs)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jawad Ahmad ◽  
Fahid Aslam ◽  
Rebeca Martinez-Garcia ◽  
Mohamed Hechmi El Ouni ◽  
Khalid Mohamed Khedher
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Self Compacting Concrete ◽  
Pozzolanic Materials ◽  
Passing Ability ◽  
Marble Waste

AbstractSelf compacting concrete (SCC) is special type of concrete which is highly flowable and non-segregated and by its own mass, spreads into the formwork without any external vibrators, even in the presence of thick reinforcement. But SSC is also brittle nature like conventional concrete, which results in abrupt failure without giving any deformation (warning), which is undesirable for any structural member. Thus, self-compacting concrete (SCC) needs some of tensile reinforcement to enhance tensile strength and prevent the unsuitable abrupt failure. But fiber increased tensile strength of concrete more effectively than compressive strength. Hence, it is essential to add pozzolanic materials into fiber reinforced concrete to achieve high strength, durable and ductile concrete. This study is conducted to assess the performance of SCC with substitutions of marble waste (MW) and coconut fiber (CFs) into SCC. MW utilized as cementitious (pozzolanic) materials in percentage of 5.0 to 30% in increment of 5.0% by weight of binder and concrete is reinforced with CFs in proportion of 0.5 to 3.0% in increment of 0.5% by weight of binder. Rheological characteristics were measured through its filling and passing ability by using Slump flow, Slump T50, L-Box, and V-funnel tests while mechanical characteristics were measured through compressive strength, split tensile strength, flexure strength and bond strength (pull out) tests. Experimental investigation show that MW and CFs decrease the passing ability and filling ability of SCC. Additionally, Experimental investigation show that MW up to 20% and CFs addition 2.0% by weight of binder tend to increase the mechanical performance of SCC. Furthermore, statistical analysis (RSM) was used to optimize the combined dose of MW and CFs into SCC to obtain high strength self-compacting concrete.

scholarly journals Effect of Fibre (Polypropylene) Volume in Mortar Mixed With POFA

2019 ◽  
Vol 9 (1) ◽  
pp. 1870-1873
Keyword(s):  
Tensile Strength ◽  
Experimental Studies ◽  
High Strength ◽  
Normal Concrete ◽  
Split Tensile Strength ◽  
Palm Oil Fuel Ash ◽  
Strength Tests ◽  
Fuel Ash ◽  
Partial Cement Replacement ◽  
Oil Fuel

High strength fibre reinforced concrete is envisaged to exhibit high compressive and tensile strength under loadings. In this study, experimental studies are conducted to assess the mechanical behavior of fibre reinforced mortar and comparing them with normal concrete. For this experiment, the aspect ratio of fibre (polypropylene) volume inclusion is fixed to 33. Palm Oil Fuel Ash (POFA) is also included as partial cement replacement. The compressive strength and split tensile strength tests are conducted. This paper presents the results of mechanical strength for fibre reinforced mortar mixed with POFA. It is indicated that the volume of fibre inclusion in concrete have significant impact in compressive and tensile strength. In this study, the optimum fibre dosage inclusion is 20 kg/m3 that exhibit 82.4MPa and 78.7 MPa stresses at 56 days of curing for both 100% OPC and 40%POFA inclusion samples, respectively. The findings of this study can be applied to construction in coastal areas

scholarly journals Experimental Investigation on Mechanical Properties of Hybrid Fiber Reinforced Quaternary Cement Concrete

2015 ◽  
Vol 10 (4) ◽  
pp. 155892501501000
Author(s):  
Ramesh Kanagavel ◽  
K. Arunachalam
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Impact Resistance ◽  
Polypropylene Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Cement Concrete ◽  
Split Tensile Strength ◽  
Polypropylene Fiber Reinforced Concrete

Mechanical properties of quaternary blending cement concrete reinforced with hybrid fibers are evaluated in this experimental study. The steel fibers were added at volume fractions of 0.5%, 1%, and 1.5 % and polypropylene fibers were added at 0.25% and 0.5% by weight of cementitious materials in the concrete mix individually and in hybrid form to determine the compressive strength, split tensile strength, flexural strength and impact resistance for all the mixes. The experimental results revealed that fiber addition improves the mechanical properties and also the ductility and energy absorption of the concrete. The results also demonstrate that the hybrid steel – polypropylene fiber reinforced concrete performs better in compressive strength, split tensile strength, flexural strength and impact resistance than mono steel and mono polypropylene fiber reinforced concrete.

scholarly journals Effect of Silica fume on Ordinary Portland Cement and Polymer Concrete Made out of M Sand

2019 ◽  
Vol 9 (2S2) ◽  
pp. 42-46
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Silica Fume ◽  
Unsaturated Polyester ◽  
High Strength ◽  
Pozzolanic Reaction ◽  
Maximum Strength ◽  
Polymer Concrete ◽  
Split Tensile Strength ◽  
Conventional Concrete

In this investigation, conventional concrete was made with replacing the sand by 80 % of M-sand and the cement by fillet material silica fume in varying percentages say 5%, 10 % , and 15%, to study the compressive strength, split tensile strength and flexural strength. In order to the maximum strength was attained at 10% of silica fume. The result showed that by increasing the silica fume content, the strength of the M-sand concrete was decreased because higher fineness of silica fume content decreases the strength of the M-sand concrete. Secondly polymer concrete with unsaturated polyester resin with hardener MEKP, Cobalt as the accelerator and silica fume in varying percentages say 0%, 5% and 10% was made to study the compressive strength and split tensile strength of polymer concrete. In improved silica fume content the strength was high. Polymer concrete improved the mechanical properties. Polymer concrete system was mainly useful to fill the micro voids. In this research, the maximum strength was attained at 5% of silica fume filler added with polymer concrete. Thus the high strength of the concrete was obtained due to the pozzolanic reaction with the silica fume.

scholarly journals ANALISIS KUAT TARIK BELAH TERHADAP PEMANFAATAN LIMBAH STRAPPING BAND SEBAGAI SUBSTITUSI PASIR PADA BETON NORMAL

2020 ◽  
Vol 13 (2) ◽  
pp. 137
Author(s):  
Dr. Akhmad Suryadi, BS., MT
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Fiber Reinforced Concrete ◽  
Concrete Mixture ◽  
Synthetic Fiber ◽  
Average Weight ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Tensile Strength Test ◽  
Concrete Concept

The advancement era, the use of strapping band in the process of shipping goods was increases because of the more practical needs and stronger straps make the waste from strapping band was increases. With a large amount of waste by shredding it into smaller sizes it can be used as a substitute for fine aggregate in concrete mixture with synthetic fiber reinforced concrete concept at the Laboratory of Civil Engineering Politeknik Negeri Malang. The objectives of this research were to analyze the characteristics of concrete with the substitution of strapping band waste against fine aggregate in compressive strength and split tensile strength test. The research method including: aggregate test and strapping band test, the mix design of concrete mixture was using the reference SNI 03-2834-2000. The experiments sample for each variation of 0%, 5%, and 8% were performed with 24 cylinder specimens for compressive strength and 6 cylinder specimens for split tensile strength. The compressive strength on 28 days with 0%, 5%, and 8% variation resulted in 27.67 kg/cm2; 26.82 kg/cm2; 17.83 kg/cm2. The split tensile strength on 28 days with 0% 5%, and 8% variation resulted in 2.42 kg/cm2; 1.90 kg/cm2; 1.51 kg/cm2. The average weight of cylinder specimens with 0%, 5%, and 8% variation resulted in 12.62 kg; 12.04 kg; 11.61 kg. Substitution of strapping band waste decreases compressive strength, split tensile strength and average weight concrete. Key words : Strapping band waste, compressive strength, split tensile strength

scholarly journals Experimental Investigation on Mechanical Properties of Hybrid Fiber Reinforced Quaternary Cement Concrete

2016 ◽  
Vol 11 (3) ◽  
pp. 155892501601100 ◽  
Author(s):  
Ramesh Kanagavel ◽  
K. Arunachalam
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Impact Resistance ◽  
Polypropylene Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Cement Concrete ◽  
Split Tensile Strength ◽  
Polypropylene Fiber Reinforced Concrete

Mechanical properties of quaternary blending cement concrete reinforced with hybrid fibers are evaluated in this experimental study. The steel fibers were added at volume fractions of 0.5%, 1%, and 1.5 % and polypropylene fibers were added at 0.25% and 0.5% by weight of cementitious materials in the concrete mix individually and in hybrid form to determine the compressive strength, split tensile strength, flexural strength and impact resistance for all the mixes. The experimental results revealed that fiber addition improves the mechanical properties and also the ductility and energy absorption of the concrete. The results also demonstrate that the hybrid steel – polypropylene fiber reinforced concrete performs better in compressive strength, split tensile strength, flexural strength and impact resistance than mono steel and mono polypropylene fiber reinforced concrete.

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