scholarly journals Utilization of Iron Slag as Partially Replacement with Fine Aggrgate in High Strength SelfCompacting Concrete (HSSCC)

2019 ◽  
Vol 8 (11) ◽  
pp. 1177-1183
Keyword(s):  
Research Work ◽  
High Strength ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Iron Slag ◽  
Area Of Interest ◽  
Slump Flow ◽  
Super Plasticizer ◽  
Hardened Properties

lot of work within the field of normal mix concrete and Scc has been done in the last two decades. Utilization of different waste material from the different industries as the partial replacement of cement as well as aggregates both fine and coarse has been considered in the research work by different researchers as per their area of interest. No doubt use of Iron Slag has been in trend but only cement replacement is done with it. Research work in the replacing of Fine aggregate with iron slag in SCC has not been studied in detail. An aim was set to study the hardened properties and fresh properties of iron slag based HSSCC. Mix design of M60 grade of high strength selfcompacting concrete is done as per EFNARC guidelines. Testing of rheological properties of HSSCC with U- Box, Slump Flow, LFunnel, V- Box, apparatus were done. Testing of hardened properties of HSSCC for Split Tensile Strength, flexural strength, compressive strengthas per Indian standard guidelines. Replacement of Fine aggregate (20, 30, and 40%) was done with iron slag and further addition of Alccofine and super plasticizer was done.

Experimental Study on the Mechanical behaviour of Concrete by Partial Replacement of Waste Iron Powder as Fine Aggregate: A Green Concrete Approach

2020 ◽  
Vol 6 (11) ◽  
pp. 126-130
Author(s):  
Arivalagan S
Keyword(s):  
Iron Powder ◽  
Research Work ◽  
Plain Concrete ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Natural Sand ◽  
Iron Slag ◽  
Main Challenge ◽  
By Products

The environment issues and its problems are very common in India due to growing of industrial by-products. Due to industrialization enormous by-products are produced and to utilize these by-products is the main challenge faced in India. Iron slag is one of the industrial by-product from the iron and steel making industries. Now from this study confirm that the use of iron slag overcome the pollution problems in the environment and save the world from global warming. In the current research work the properties of concretes with waste iron dust as fine aggregate were investigated. Waste iron dust was used as a partial replacement for sand at 10%, 20%,30% and 40% of concrete mixes. Compression strength, split tensile strength and flexural strength for 7, 14 and 28 days concrete of age were compared with those of concrete made with natural fine aggregates. From this experimental work it was proven that the waste iron powder added to the concrete had increases strength than the plain concrete. Increasing strength has been observed when replacing of waste iron powder by natural sand.

Suitability of Quarry Dust as a Partial Replacement of Fine Aggregate in Self Compacting Concrete

2018 ◽  
Vol 877 ◽  
pp. 248-253
Author(s):  
Thete Swapnil Tanajirao ◽  
D. Arpitha ◽  
Suman Saha ◽  
C. Rajasekaran
Keyword(s):  
Coarse Aggregate ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Self Compacting Concrete ◽  
Slump Flow ◽  
Fine Aggregates ◽  
Material Gain ◽  
Optimum Utilization ◽  
Hardened Properties ◽  
Quarry Dust

Large quantity of the quarry dust gets produced annually in the quarries during the extraction of the crushed coarse aggregate. As a result, disposal problems of this material gain significant momentum as these disturb environmental systems also. Now-a-days many of the countries like India is facing problems of ban on the extraction of sand and lacunae in procuring of fine aggregate, which is important constituent of the concrete. To overcome this problem, present study is focused on the suitability to utilize the quarry dust in Self Compacting Concrete (SCC) partially as fine aggregate with the natural fine aggregates. In this work, quarry dust is used as replacement of sand in a different level (0%, 15%, 30%, 45% and 60%) for producing the SCC. Fresh properties such as slump flow and V-funnel time have been measured for all mixes and hardened properties as compressive strength, splitting tensile strength and flexural strength of the concrete have been checked for all the mixes and it has been found that optimum utilization of quarry dust up to 30% can been done to produce SCC without compromising with its properties.

Feasibility Studies on Demolition Recycled Fine Aggregate and Sea Sand as Partial Preplacement to Natural Fine Aggregate in Concrete

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Kishor Kumar B. R ◽  
Kishor Kumar B. R ◽  
Kishor Kumar B. R ◽  
Kishor Kumar B. R
Keyword(s):  
Research Work ◽  
Feasibility Studies ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Test Results ◽  
Split Tensile Strength ◽  
The Sustainable Development ◽  
Recycled Fine Aggregate ◽  
Mix Proportion ◽  
Sea Sand

In this research work, an attempt is being made to partially replace the natural fine aggregate with sea sand and recycled fine aggregate obtained from demolished concrete waste in varied proportions to concrete mix and subject the specimens to mechanical strength tests for short and long durations of 7, 28, 56 and 90 days curing. The compressive strength, split tensile strength and flexural strength results of 30% mix proportion (15% Sea sand + 15% demolished waste sand) were found to be 58.3 N/mm2, 3.53 N/mm2 and 4.71N/mm2 respectively. All the three strength test results obtained were found to yield 15% higher strength than the control specimens. Finally, it can be concluded that partial replacement of natural fine aggregate by sea sand and demolition recycled fine aggregate in construction industry, not only eliminates the waste management problems and impacts on environment, but also leads to the sustainable development by reducing the consumption of natural resources.

scholarly journals Effect of Basalt Fibers on the Properties of High Strength Self-Compacting Concrete.

2019 ◽  
Vol 9 (1) ◽  
pp. 3995-3998
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Basalt Fibers ◽  
Self Compacting Concrete ◽  
Split Tensile Strength ◽  
Strength Concrete ◽  
Aspect Ratios ◽  
Slump Flow ◽  
Flow Test ◽  
Hardened Properties

Concrete having characteristics strength of more than 65 MPa is categorized as high-strength concrete according to IS 456. The high strength concrete is more brittle compared to ordinary strength concrete and inclusion of fibers can increase the ductility of concrete. In the present study, high strength self-compacting concrete of characteristic strength of 90 MPa was developed as per the guidelines of EFNARC. Basalt fibers were considered to investigate its influence on the properties of high strength self compacting concrete. Three aspect ratios of 230, 530 and 600 were considered and are added in proportions of 0.1% and 0.4% by volume of concrete. The properties of concrete determine were fresh and hardened. Fresh properties such as slump flow test, V-funnel test, V-funnel T5 minutes and L-box test were determined as per EFNARC. Also, hardened properties such as compressive strength, split tensile strength and flexural strength were determined. A typical comparison on the effect of aspect ratio of basalt fibers and the dosage on the properties of concrete were determined. From the results, the optimum dosage of fibers was determined.

scholarly journals Optimization of Partial Replacement of Fly Ash with Cement and Fine Aggregate with Eco Sand in Normal Concrete

2019 ◽  
Vol 8 (12) ◽  
pp. 1002-1008
Keyword(s):  
Fly Ash ◽  
Manufacturing Industry ◽  
Good Alternative ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
River Sand ◽  
Split Tensile Strength ◽  
Conventional Concrete ◽  
Wet Process ◽  
Hardened Properties

Eco sand is a very fine particle, which is a by-product from the cement manufacturing industry by semi-wet process and it can be a good alternative for natural river sand. Due to its very finely powdered crystalline silica particles present in that which can replace up to 50% of conventional sand usage in concrete and mortars. It can be used in the concrete by replacement of fine aggregates by a certain percentage which gives much more efficiency. In this paper, the hardened properties like cube compressive strength, cylinder split tensile strength, and prism flexural strength are studied with various replacements cement with fly ash like 0 % and 30% and sand with eco sand-like 0%,30%,40%,50% and 60%. The results are compared with conventional concrete specimens. Experimental results also show that the hardened properties of concrete are increased by a certain amount when compared with the normal placed concrete specimens. During the study Due to replacement of fine aggregate with eco sand for workability conditions by some amount of chemical admixtures have been added

scholarly journals Effects of Zeolite and Used Foundry Sand in Concrete

2020 ◽  
Vol 9 (7) ◽  
pp. 969-972
Keyword(s):  
Research Work ◽  
Chemical Properties ◽  
High Strength ◽  
Co2 Concentration ◽  
Partial Replacement ◽  
Split Tensile Strength ◽  
Natural Sand ◽  
Foundry Sand ◽  
Pozzolanic Material ◽  
Test Result

In Current scenario, the CO2 concentration is getting increased in the environment which leads to climatic change and greenhouse effect. By using zeolite powder (pozzolanic material),it can reduce the CO2 emissions in the atmosphere. Using zeolite as partial replacement material of cement could make the concrete high strength, hence it eco-friendly. Used Foundry Sand (UFS) is an industrial by-product which is another material used in this research. The UFS can be used as a replacement for natural sand due to its properties.The present research work is aimed at studying the effect of the physical and chemical properties of Zeolite and UFS in M20 grade concrete. Based on previous literature 10, 15 and 20 % of Zeolite as replacement of cement and 30 % of UFS as replacement of sand are considered for the present study. The main objective is to estimate the test result of using Zeolite and UFS as partial replacement for cement and fine aggregates in fresh and hardened properties of concrete. Compressive strength and split tensile strength were carried out for 7,14 and 28 days and flexural strength of element will be observed from optimum percentage of test result.

scholarly journals Effects of Scrap Rubber TYRE Aggregates as Partial Replacement of Natural Aggregates in High Strength Concrete

2020 ◽  
Vol 9 (4) ◽  
pp. 2039-2043 ◽  
Keyword(s):  
High Strength Concrete ◽  
Research Work ◽  
High Strength ◽  
Partial Replacement ◽  
Experimental Program ◽  
Rubberized Concrete ◽  
Split Tensile Strength ◽  
Conventional Concrete ◽  
Strength Concrete ◽  
Natural Aggregates

This research work mainly focus on feasibility of incorporating rubber tyre cubical chips as a partial replacement or natural aggregates in concrete. Little work is done using rubberized concrete for normal strength. Here an attempt is made to compare the strength of high strength concrete for different % of rubber aggregates. Experimental program consists of testing the different parameter of the materials used like cement, sand, and aggregate. In the present investigation the mechanical strength like compressive strength, flexural strength, split tensile strength are compared with the rubberized concrete using 20mm single size rubber pieces as replacement to natural aggregate. Replacing by 5%, 10%, 15% and 20%. And there results were checked with reference to conventional concrete and the amount of variation in the strength is studied.

scholarly journals Abrasion Resistance of Ultra-High-Performance Concrete for Railway Sleepers

2021 ◽  
Author(s):  
Ariful Hasnat ◽  
Nader Ghafoori
Keyword(s):  
Prestressed Concrete ◽  
Abrasion Resistance ◽  
High Performance ◽  
High Performance Concrete ◽  
High Strength ◽  
Positive Influence ◽  
Cementitious Material ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Ultra High Performance Concrete

AbstractThis study aimed to determine the abrasion resistance of ultra-high-performance concretes (UHPCs) for railway sleepers. Test samples were made with different cementitious material combinations and varying steel fiber contents and shapes, using conventional fine aggregate. A total of 25 UHPCs and two high-strength concretes (HSCs) were selected to evaluate their depth of wear and bulk properties. The results of the coefficient of variation (CV), relative gain in abrasion, and abrasion index of the studied UHPCs were also obtained and discussed. Furthermore, a comparison was made on the resistance to wear of the selected UHPCs with those of the HSCs typically used for prestressed concrete sleepers. The outcomes of this study revealed that UHPCs displayed excellent resistance against abrasion, well above that of HSCs. Amongst the utilized cementitious material combinations, UHPCs made with silica fume as a partial replacement of cement performed best against abrasion, whereas mixtures containing fly ash showed the highest depth of wear. The addition of steel fibers had a more positive influence on the abrasion resistance than it did on compressive strength of the studied UHPCs.

Properties of High Strength Fibre Reinforced Concrete Using Ultra Fine Slag

2016 ◽  
Vol 857 ◽  
pp. 183-188
Author(s):  
C. Mohan Lal ◽  
Vontary Sai Srujan Reddy
Keyword(s):  
High Strength Concrete ◽  
Steel Fibre ◽  
High Strength ◽  
Target Strength ◽  
Partial Replacement ◽  
Fibre Reinforced Concrete ◽  
Test Results ◽  
Design Requirement ◽  
Split Tensile Strength ◽  
Strength Concrete

High strength concrete has become a design requirement in recent years due to increase in number of infrastructure projects. This paper presents the effect of incorporating Ultra Fine Slag (UFS) and steel fibre to obtain high strength concrete. To achieve target strength of about 80 MPa, it is proposed to the replacement of cement of 10%, 20% and 30% with UFS and incorporating 0.5% and 1.0% fibre in concrete. An experimental investigation is carried out to find the mechanical properties of the concrete. From the test results, it was observed that a compressive strength of 95 MPa was achieved at 30% replacement of cement with UFS and 1.0% fibre content. In addition, there was a significant improvement in split tensile strength and flexural strength of the concrete. This study demonstrates that a high strength concrete can be obtained from partial replacement of cement with UFS and addition of steel fibre.

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