scholarly journals Micro Structural Properties of Ternary Blended Concrete

2021 ◽  
Vol 1 (2) ◽  
pp. 33-36
Author(s):  
Gomasa Ramesh
Keyword(s):  
Structural Properties ◽  
Material Properties ◽  
Phase Changes ◽  
Split Tensile Strength ◽  
Sem Study ◽  
Strength Tests ◽  
Cement Manufacturing ◽  
Microscopy Techniques ◽  
Substitute Materials ◽  
Ternary Blended Concrete

The sum of CO2 that has been released into the atmosphere is roughly equal to the amount of cement produced. Cement manufacturing now consumes many natural resources and cement substitute materials in the analysis of Micro Structural Properties of Ternary Blended Concrete. The mixed proportion in this analysis is made of M30 Concrete. The cement is substituted with a mixture of two materials in amounts ranging from 10% to 50%. For the mix of materials, Fly Ash is kept constant. The specimen is a 150mmx150mmx150mm cube, and the concrete is cast in a 150mmx300mm cylinder. The cast specimens are held for 28 days to cure. Compressive and split tensile strength tests are used to achieve the results. The combination at 10%, at 20%, at 20%, and 20% produced better strength results in all proportions from 10% to 50%. Besides, scanning electron microscopy techniques were used to understand better phase changes and the formation of microstructures to maturing the combination of materials at various percentages. SEM was used to evaluate the microstructure of the concrete for five different varieties, which helps with solid growth. With the highest compressive strength gained among all the mixes from 10% to 50% with combinations for M30 grade of concrete at 28 days, significant innovative information on particle shape and microstructure was observed. Via SEM study, a good correlation of this Microscopical quantitative knowledge and material properties is also presented.

scholarly journals Micro Structural Properties of Ternary Blended Concrete

2021 ◽  
pp. 33-36
Author(s):  
Gomasa Ramesh ◽  
Keyword(s):  
Structural Properties ◽  
Material Properties ◽  
Phase Changes ◽  
Split Tensile Strength ◽  
Sem Study ◽  
Strength Tests ◽  
Cement Manufacturing ◽  
Microscopy Techniques ◽  
Substitute Materials ◽  
Ternary Blended Concrete

The sum of CO2 that has been released into the atmosphere is roughly equal to the amount of cement produced. Cement manufacturing now consumes many natural resources and cement substitute materials in the analysis of Micro Structural Properties of Ternary Blended Concrete. The mixed proportion in this analysis is made of M30 Concrete. The cement is substituted with a mixture of two materials in amounts ranging from 10% to 50%. For the mix of materials, Fly Ash is kept constant. The specimen is a 150mmx150mmx150mm cube, and the concrete is cast in a 150mmx300mm cylinder. The cast specimens are held for 28 days to cure. Compressive and split tensile strength tests are used to achieve the results. The combination at 10%, at 20%, at 20%, and 20% produced better strength results in all proportions from 10% to 50%. Besides, scanning electron microscopy techniques were used to understand better phase changes and the formation of microstructures to maturing the combination of materials at various percentages. SEM was used to evaluate the microstructure of the concrete for five different varieties, which helps with solid growth. With the highest compressive strength gained among all the mixes from 10% to 50% with combinations for M30 grade of concrete at 28 days, significant innovative information on particle shape and microstructure was observed. Via SEM study, a good correlation of this Microscopical quantitative knowledge and material properties is also presented.

scholarly journals Experimental Study on Mechanical Properties on Ternary Blend of Concrete

2018 ◽  
Vol 7 (3.12) ◽  
pp. 91
Author(s):  
Vijay Chander S ◽  
Ramakrishnan K ◽  
Muthu D
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Glass Powder ◽  
Ternary Blend ◽  
Split Tensile Strength ◽  
Waste Glass Powder ◽  
Strength Tests ◽  
Concrete Admixtures ◽  
Cement Manufacturing ◽  
Ternary Blended Concrete

A major problem in cement manufacturing is the increased emission of CO2. About 5% of worldwide man-made emission of CO2 is generated. Cement being the predominant material of concrete, the usage needs to be reduced by using admixtures or SCMs to replace partially, the percentage of OPC in concrete. Admixtures like Metakaolin (MK) and Waste Glass Powder (GP) were used to replace OPC, producing a ternary blended concrete. The cement replacement with GP is from 5% to 45% and MK is from 45% to 5% both in steps of 5% and hence a total of ten combinations including control mixture (100% cement) were studied for M30 grade. Mechanical properties are evaluated by conducting compressive, split tensile strength tests. The initial compressive strength of mix containing 20% GP and 30% MK with 50% OPC, after 7 days curing is found to be higher by 5%, compared with control mix. 

scholarly journals Rheology, Strength and Durability Characteristics of Alccofine Blended Fibre Reinforced Self Consolidating Concrete

2018 ◽  
Vol 7 (3.12) ◽  
pp. 209
Author(s):  
Bletty Baby ◽  
Jerry Anto ◽  
Basil Johny ◽  
Sreenath S
Keyword(s):  
Steel Fibre ◽  
Flow Characteristics ◽  
Strength Degradation ◽  
Fibre Content ◽  
Split Tensile Strength ◽  
Self Consolidating Concrete ◽  
Slump Flow ◽  
Strength Tests ◽  
Hardened Properties ◽  
Strength And Durability

In this study, observations were made on the effect of blending cement with fly ash and Alccofine on the fresh and hardened properties of micro steel fibre reinforced self-consolidating concrete (SCC). SCC mixes were prepared based on EFNARC guidelines. Blending has been done by replacing 5%, 10% and 15% of cement with Alccofine. Slump flow, L-box and V-funnel tests were conducted to study the flow characteristics of SCC. Compressive strength, split tensile strength, and flexural strength tests were performed to assess the strength characteristics. It was observed that the SCC with 10% replacement of cement with Alccofine showed better results than the other mixes. Further, the modification of the optimum blend with 10% Alccofine was made by adding variable percentages (0.5%, 1% and 1.5% by volume) of micro steel fibres and strength tests were conducted to optimise the fibre content. The strength degradation of the SCC with optimum Alccofine and fibre content exposed to alkaline, chloride and sulphate solutions was also studied.

Aspects of Testing and Material Properties of Fiber Concrete

2019 ◽  
Vol 292 ◽  
pp. 9-14 ◽  
Author(s):  
Oldrich Sucharda ◽  
Vlastimil Bilek
Keyword(s):  
Tensile Strength ◽  
Material Properties ◽  
Bending Test ◽  
Test Results ◽  
Functional Dependencies ◽  
Split Tensile Strength ◽  
Bending Tests ◽  
Fibre Concrete ◽  
Fiber Concrete ◽  
Concrete Mixer

Concrete is typical composite material and its properties can be very variable. Material properties are also influenced with the technology of processing, manufacturing and treatment after concreting. Reinforcement in form of fibers is often added for improving tensile strength. This paper deals with specific testing of fibre concrete. Test results of series of specimens are presented for selected transport concrete composition, which is reinforced with amount of fibers 25, 50, 75 kg / m3. Fibers were added directly into the into the concrete mixer in the factory. Each series includes more than 25 test samples. The tests include the compressive strength of a cube and cylindrical, testing of modulus of elasticity, and the split tensile strength in the direction perpendicular to and parallel to the filling. Within the research project also a few types of bending tests were performed. Four variants of bending test that vary in span of 500 or 600 mm, samples with and without a notch, and in a three- / four-point configuration. As a summary, broader evaluation and functional dependencies are derived.

Material and Structural Properties for Creating High Performance Concrete Structures

2014 ◽  
Vol 629-630 ◽  
pp. 21-27
Author(s):  
György L. Balázs
Keyword(s):  
Structural Properties ◽  
Material Properties ◽  
High Performance ◽  
High Performance Concrete ◽  
Concrete Structures ◽  
Structural Elements ◽  
Design Rules ◽  
Existing Structures ◽  
New Codes ◽  
Specific Material

HPC and UHPC concretes are finding their ways both to new structures and to retrofitting of existing structures. Herein specific material properties as well as structural examples are discussed. New Codes and Recommendations provide description of material properties and design rules for HPC/UHPC structures and structural elements.

Characterizing Interphase Properties in Fiber Reinforced Polymer Composite with Advanced AFM Based Tools

2010 ◽  
Vol 123-125 ◽  
pp. 403-406 ◽  
Author(s):  
Si Qun Wang ◽  
San Deep Nair ◽  
Donna Hurley ◽  
Seung Hwan Lee
Keyword(s):  
Material Properties ◽  
Fiber Reinforced Polymer ◽  
Phase Imaging ◽  
Fiber Reinforced ◽  
Scanning Thermal Microscopy ◽  
Maleated Polypropylene ◽  
Force Microscopy ◽  
Reinforced Polymer ◽  
Microscopy Techniques ◽  
Contact Resonance

Advanced atomic force microscopy techniques such as contact resonance force microscopy, noncontact mode phase imaging, and scanning thermal microscopy techniques have been used to characterize material properties in the interphase of fiber reinforced polymer composites. With contact resonance force microscopy, the average interphase thickness was found to be (49 ± 5) nm, (64 ± 12) nm, and (139 ± 21) nm for samples containing lyocell fibers in matrix materials consisting of 100 % polypropylene (PP)/0 % maleated polypropylene (MAPP), 95 % PP/5 % MAPP, and 90 % PP/10 % MAPP, respectively. Clear distinctions in modulus values between the fiber, interphase zone, and matrix are clearly visible in modulus images. A gradient of modulus was observed across the interphase region that ranged between the modulus values of fiber and the polymer matrix. Noncontact mode images showed a clear phase difference between the fiber, interphase, and matrix owing to the difference in material properties between the components. Interphase regions were observed to possess higher thermal conductivity than the matrix polymer due to cross-linking within the interphase.

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.

scholarly journals Micro-behavioral Study of Bagasse Ash based Geopolymer Concrete

2019 ◽  
Vol 8 (9) ◽  
pp. 3494-3501
Keyword(s):  
Research Work ◽  
Silica Content ◽  
Partial Replacement ◽  
Alkaline Solutions ◽  
Geopolymer Concrete ◽  
Split Tensile Strength ◽  
Complete Replacement ◽  
X Ray ◽  
Granulated Blast Furnace Slag ◽  
Cement Manufacturing

Cement manufacturing industries which emits about 7% of CO2 to the environment causing pollution. So, in order to avoid pollution problems there is a need to find an alternative binding material. Wastes like agricultural or industrial in the form of ash can be utilized as a substitute for cement. In this research work, Ground Granulated Blast-furnace Slag(GGBS) and Sugarcane Bagasse ash(SCBA) is used as a complete replacement to cement so as to form Geopolymer concrete(GPC). Two different SCBA sources which has high amount of silica content is considered for the partial replacement of GGBS in varying percentages like 5%, 10%, 15%, 20%, 25%, 30% to determine mechanical and microstructure properties. A 5M alkaline solutions of Sodium hydroxide and Sodium silicate is used. In this work, mechanical properties of GGBS-SCBA based GPC which includes compressive strength, split tensile strength, flexural strength and microstructure properties of SCBA samples by X-ray Fluorescence(XRF), Energy Dispersive spectroscopy(EDS), X-ray Diffractometer(XRD), Scanning Electronic Microscope(SEM) techniques are determined and analyzed on different GPC mix proportions.

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 Effects of Mechanical Properties of Concrete with Tio2 and Ggbs

2020 ◽  
Vol 9 (1) ◽  
pp. 1924-1927
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Building Material ◽  
Co2 Emission ◽  
Split Tensile Strength ◽  
The Past ◽  
Sustainable Environment ◽  
Optimum Content ◽  
Strength Tests ◽  
The World

Concrete is the abundant man made material in the world. The quantity of Co2 emission through the industrialized of OPC is almost one ton. The Co2 emission is approximately 7% of the worlds Co2 emission. In order to decrease the Co2 emission and create the sustainable environment we have to develop greener building material. In this the TiO2and GGBS is use in cement on mixing of concrete. In this TiO2 go about as a self cleaning material and the solid with expansion of TiO2 is 1% by mass of the concrete dependent on the past tasks are finished by the scientists and GGBS with 5%, 10% and 15% by mass of cement was prepared. In this research hardened tests are Compressive, Flexural, Split Tensile strength tests of concrete observations mixed with TiO2 and GGBS for optimum content was considered

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