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

Author(s):  
Arivalagan S

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.

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.


2011 ◽  
Vol 243-249 ◽  
pp. 5775-5778 ◽  
Author(s):  
M. Devi ◽  
K. Kannan

Demand for natural sand in concrete is increasing day by day since the available sand cannot meet the rising demand of construction sector. This paper reports the experimental study undertaken to investigate the influence of partial replacement of cement with Ground Granulated Blast Furnace Slag(GGBFS) in concrete containing quarry dust as fine aggregate. The cement was replaced by 10%, 20%, 30%, 40% and 50% of GGBFS and tests were conducted to determine the optimum level of replacement of GGBFS in quarry dust concrete. The specimens were subjected to compressive strength, split tensile strength, flexural strength, and bond strength tests at 7days, 28days, 56days, 90days and 150 days. The resistance to corrosion is evaluated based on the performance of the concrete for the penetration of chloride ions by means of impressed voltage technique in saline medium and Gravimetric weight loss method. Results herein reveal that an increase in slag proportion increases the strength properties and decreases the rate and amount of corrosion of reinforcement and among the various percentages of replacement 40% is found to be optimum with better strength and corrosion resistance properties.


2019 ◽  
Vol 1 (6) ◽  
pp. 537-542
Author(s):  
Anukarthuika B ◽  
Priyanka S ◽  
Preethika K

Concrete plays important role in the construction of structures. The need for concrete increases day by day. Material required for concrete are getting depleted, so there is a requirement to find alternatives. At the same time the alternative materials should posses the property of the actual materials used in concrete and also they must provide the required strength to the concrete. Normally Concrete is firm in compression but anemic in tension and shear. The purpose of this study is to find the behaviour of concrete reinforced with hybrid macro fibers. By adding Glass fibers in percentages like 0.2%, 0.4%, 0.6%& 0.8% to the concrete, the properties like compressive, flexural and split tensile strength are investigated. The optimum percentage of glass fiber was found to be 0.4%. Quarry dust has been widely used in structures since ancient times. The present study is aimed at utilizing waste Quarry dust (WQD) in construction industry itself as fine aggregate in concrete, replacing natural sand and also by adding the optimum percentage of glass fibers. The replacement is done partially and fully in the various proportions like 0%, 25%, 50%, 75% and 100% and its effect on properties of concrete were investigated. The optimum percentage of the concrete by adding 0.4% of glass fiber and the proportions was found to be 25%.


Author(s):  
Kishor Kumar B. R ◽  
Kishor Kumar B. R ◽  
Kishor Kumar B. R ◽  
Kishor Kumar B. R

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.


Author(s):  
Leela Prasanth U ◽  
Karan Kumar H ◽  
Afzal Basha Syed

Concrete is a compound material composed of fine aggregates and coarse aggregate bonded together with fluid cement that hardens over time.The deficit of natural sand arises the need of alternative materials for replacement of natural sand. The squashed stone residue which is locally accessible modern strong waste material is ordinarily utilized as a fine aggregate in concrete. In the current examination, an exploratory program was carried out to consider the compressive and split tensile quality of concrete made utilizing stone residue as halfway substitution of fine aggregate at an increment of 10%. Zeolite is a pozzolanic material and its pozzolanic action improves the compressivestrength of concrete. Natural zeolites are supplementary cementitious materials. By adding zeolite, the investigation on the experiments will be carried out to determine the compressive strength and split tensile strength of concrete made using zeolite as partial replacement of cement up to 20 percent at an interval of 5 percent just as the way Stone dust is being replaced to achieve the objective of the project, M30 grade of concrete is prepared. The cube and cylindrical samples shall be tested after a curing period of 7 & 28 days.


Author(s):  
Mannala Jyothi ◽  
A. B. S. Dadapeer ◽  
C. Ramachandrudu

Now a days, infrastructure development holds the key for the development of every nation. Concrete is one of the most utilized material by the construction industry which is a homogeneous material prepared of heterogeneous materials like Cement, sand and aggregates. However rapid urbanization has created a huge demand for natural sand hence made it even more expensive. This led the researchers to find other materials which could be used as a replacement of sand whose main chemical composition is Silica (SiO2). After a great extent of research, researchers found that materials like Stone dust, Copper Slag, Coal Fly Ash, Carbonate Sand etc. having silica composition could be used as a replacement of sand. The Present experimental investigation is carried out for M20 grade of concrete mixes with partial replacement of Fine Aggregate (Sand) with Copper Slag. Compressive Strength and Split Tensile Strength at the ages of 7, 28 days for various combinations of Copper Slag and Sand were investigated. Sand was replaced with Copper Slag by 0%,10%, 30%, and 50%.


In recent years, it is a fact that the quantity of good quality natural sand goes on draining. In most of the regions, river sands are abused, which results in severe environmental problems, river banks stability and the safety of bridges. The excessive transportation cost is the major impact for the river sands to be more expensive. In the total concrete volume, about 65 to 80% is occupied by the aggregates. These problems can be overcome by using slag instead of sands. Slag is a by-product which is made from metal industries like glass, ash plastics, etc as waste materials. These slags are a fine substitute and coarse aggregate to be cast in the concretes and mortarscompositions. In accordance, for replacing fine aggregate several research works are carried out and that solved by using copper slag. Replacing sand with copper slag of about 40% is proven by most of research as an efficient aggregate. Our research, industrial by-products are applied in order to increase the 40% copper slag. This composition will be a fine aggregate in concrete to 50%, 60%. In another way by using silica fume or marble dust in 10%, 20% and 30% it will be fine aggregate for the concretes


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.


2015 ◽  
Vol 773-774 ◽  
pp. 916-922 ◽  
Author(s):  
Norul Ernida Zainal Abidin ◽  
Mohd Haziman Wan Ibrahim ◽  
Norwati Jamaluddin ◽  
Kartini Kamaruddin ◽  
Ahmad Farhan Hamzah

Self-compacting concrete which commonly abbrevited as SCC is a special concrete that have the ability to consilodate fully under its own self-weight without any internal or external vibration. This paper presents the experimental investigation carried out to study the strength of self-compacting concrete incorporating bottom ash at different replacement level of natural sand. The composite cement was used and the replacement level of bottom ash to natural sand is set up to 30% by volume. The strength properties such as compressive strength, split tensile strength and flexural strength of the concrete at the age of 7 and 28 days of curing day were conducted. Results shows that the strength of the concrete with bottom ash increased up to replacement level 15% higher than control specimens. This show that bottom ash can be used as supplimentary cementitious materials, having the pozzolanic reactivty.


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