Volume 6 | Issue 2 |

 Abstract

The dissimilar metal weld is demanding as well as the similar weld, however, dissimilar weld is more complex than similar weld due to the necessity of being applied in zones where a requirement is to improve some properties.Inconel and monelhas an excellent combination of mechanical properties and corrosion resistance making it suitable for applications with possibility of corrosion promoted by sea water and transportation of liquid nitrogen, helium and some biomedical applications. This paper discussed about dissimilar weld of Inconel and Monelusing TIG welding in Various Parameters and to evaluate the Mechanical(hardness, Toughness) Properties.

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 Keywords

Mech

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The increased environmental awareness and its potential hazardous effects, utilization of industrial byproducts has become an attractive alternative to disposal. Silica fume(SF), which is byproduct of the melting process in the silicon and ferrosilicon industry. Silica fume is very effective in the design and development of high performance concrete. This paper presents the results of an experimental investigations carried out to find the suitability of silica fume in concrete. The water binder ratio (W/B) adopted was 0.43. The main parameter investigated in this study is M30 grade concrete by partial replacement of cement with silica fume by 2, 4, 6,8 sand by 10%. .Specimens such as cubes and cylinders were cast for various mix proportions and tested at the age of 14and 28 days. The investigation revealed that the partial replacement of cement by silica fume will develop compressive strength and split tensile strength sufficient for construction purposes The optimum dosage of silica fume found to be 8% (by weight), when used as partial replacement of ordinary Portland cement .Its use will lead to a reduction in cement quantity required for construction purposes and hence sustainability in the construction industry as well as economic construction.

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 Keywords

Compressive strength, Silica fume,Split Tensile strength

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Concrete is the most important component used in the construction industry throughout the world.The uses of river sand in construction activities results in the excessive mining.Due to excessive mining ,natural resources are getting exhausted ,results in increase of scour depth and sometimes flood possibility.Thus, it is becoming inevitable to use alternative material in concrete, So where the fine aggregate is M-sand is used.In a filler material of the concrete is using by the waste marble powder for increasing the mechanical properties of the concrete.Marble powder is produced from sawing, cutting, polishing of marble blocks.During the cutting process,20-30% of a marble block become waste marble powder.Marble powder is a waste material generated in considerable amounts in the world.Marble powder creates environmental problems, it has a great impact on human health as well as on nature.To control the effects we have to use this waste.Therefore , the use of waste marble powder in the concrete production as an admixtures material has increasing its strength.We are also trying to find the percentage of marble powder adding (0%,5%,10%,15%)in concrete that makes the strength to the concrete maximum.

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Waste Marble powder,compressive strength,Tensile strength,Flexural strength.

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The paper presents the Clay soils have the tendency to shrink when their moisture content is decrease and swell when their moisture content is increased. CCR is the one, which is produced in plenty of quantity. In each crusher unit about 20-25% of the production is CCR. In bulk use of CCR is possible through geotechnical applications as, Back-fill material, embankment, sub base material. It is a by-product of the acetylene gas production. CCR (Calcium Carbide Residue) as a treatment of soil is a technique to save Money and time on construction projects. Transform of clay soil into workable, compactable, friable material when CCR used. By CCR stabilization chemical changes in unstable clay soil which have long term effects. Experiments performed on CCR combined at different percentage with expansive soil .The test results such as Standard Proctors test, direct shear test, and unconfined compression strength obtain on clay soil. From this study conclusion drawn that the combination of equal amount of CCR is more effective, which is (5, 7, 9%) than the addition of CCR, to the clay soil in controlling the swelling behaviour.

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Clay soil, Normal soil, Calcium Carbide Residue, Direct shear test, unconfined compression test.

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The paper presents the laboratory investigations carried out by replacing fine aggregate by bottom ash and coarse aggregate by recycled concrete aggregate to study and compare the different parameters of concrete prepared from the above two types of and a comparison is made to ascertain the quality and performance of the concrete. The fine aggregate is replaced with 10%, 15%, 20%, 25%, 30% of bottom ash and coarse aggregate is replaced with 15%, 30%, 45%N, 60%,75%. . Concrete cubes are tested at the age of 7 and 28 days of curing. A design mix for M30 was made as per IS code and the results are compared with the conventional concrete.

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 Keywords

: Bottom ash, Recycled coarse aggregate, Compressive strength, Tensile strength

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Clay bricks are more popular in building construction than the cement or concrete bricks because of their eco-friendly characteristics. Presently in ceramic industry the production goes as waste, which is not undergoing the recycle process yet. About 30% of the daily production in the ceramic industry goes as waste. These bricks were doped with ceramic powder of ratio 5%, 10%, 15%, 20%, 25% of the total weight mixture of the normal bricks. After mixing the ratio of ceramic powder, brick has been moulded in the dimension of 200mm*100mm*100mm. The moulded brick is allowed to dry for 4 days in 28 ?C - 31 ?C atmospheres and dried brick is fired in traditional method at 1250 ?C. The physical and mechanical properties were tested in both field and laboratory tests.

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 Keywords

Clay brick, Ceramic powder, Compressive strength, water absorption, Eco-friendly

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Soil is Basic Foundation for any Civil Engineering Structures and Soil Stabilizing can be defined as the modification of soil property Chemical or Physical Means in order to enhance the Engineering quality of soil the property of these clay soil in general is that they very hard when in dry state but they lose all of their strength when in wet state, In light of this property of clay soil these soil pose problem worldwide that serve as challenge to overcome for geotechnical engineers. One of the most important aspects for construction purposes is soil stabilization, which is used widely in foundation and road pavement constructions; this is because such a stabilization regime improves engineering properties of the soil, such as volume stability, strength and durability. In this process, removal or replacing of the problematic soil is done; replacement is done by a better quality material, or the soil is treated with an additive. In the present study using of Fly ash is obtained from Geotechnical Laboratory at NIT Trichy, Clay soil obtained from sindhulipu village in Coimbatore District, Lime is obtained from rasakaplayam lime plant in pollachi and coir fiber is obtained as locally available cheap, eco-friendly Natural material, which can be burned into ash. Hence the cost of stabilization may be economical by replacing good proportion of stabilizing agent using Fly ash, lime and Coir ash, where the result are compared for the two samples likely F.A+ Lime + Soil and F.A+ Lime + C.A + Soil and are observation are made by replacing different proportion to change Maximum Dry Density (MDD) Optimum moisture content (OMC), Unconfined compressive strength (UCS) and unsoaked California Bearing Ratio (CBR) are values Concluded that for various works in civil engineering such as Sub grade for road construction and foundations etc.,

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 Keywords

Fly Ash, Lime, Coir Ash, Stabilized, Proctor, UCC and CBR

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Soil is Basic Foundation for any Civil Engineering Structures and Soil Stabilizing can be defined as the modification of soil property Chemical or Physical Means in order to enhance the Engineering quality of soil the property of these clay soil in general is that they very hard when in dry state but they lose all of their strength when in wet state, In light of this property of clay soil these soil pose problem worldwide that serve as challenge to overcome for geotechnical engineers. One of the most important aspects for construction purposes is soil stabilization, which is used widely in foundation and road pavement constructions; this is because such a stabilization regime improves engineering properties of the soil, such as volume stability, strength and durability. In this process, removal or replacing of the problematic soil is done; replacement is done by a better quality material, or the soil is treated with an additive. In the present study using of Fly ash is obtained from Geotechnical Laboratory at NIT Trichy, Clay soil obtained from sindhulipu village in Coimbatore District, Lime is obtained from rasakaplayam lime plant in pollachi and coir fiber is obtained as locally available cheap, eco-friendly Natural material, which can be burned into ash. Hence the cost of stabilization may be economical by replacing good proportion of stabilizing agent using Fly ash, lime and Coir ash, where the result are compared for the two samples likely F.A+ Lime + Soil and F.A+ Lime + C.A + Soil and are observation are made by replacing different proportion to change Maximum Dry Density (MDD) Optimum moisture content (OMC), Unconfined compressive strength (UCS) and unsoaked California Bearing Ratio (CBR) are values Concluded that for various works in civil engineering such as Sub grade for road construction and foundations etc

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 Keywords

Fly Ash, Lime, Coir Ash, Stabilized, Proctor, UCC and CBR

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Due to presence of harmful chemicals and microorganisms in food, food contamination will be caused which causes illness to the people. The proposed scheme addresses the chemical contamination of foods, as opposed to microbiological contamination, which can be found under food borne illness. Food poisoning occurs by harmful bacteria on food. Food poisoning can be caused by eating contaminated food with bacteria viruses, chemicals or poisonous metals such as lead or cadmium etc. and including chicken, meat, sea food, eggs, cooked rice, ham, salami, milk and all dairy foods. Bacteria and viruses are the most common cause of food poisoning. Symptoms of food poisoning include Nausea, vomiting, stomach pain feeling weak, fever etc. In order to monitor the food poisoning, the new implementation has been made by using IoT. The monitoring system is based on many embedded sensors like thermostat, odour sensor, biosensor, pH sensor which depend on the out coming electric signals or digital value of the quality factors. In proposed system the biosensor plays a vital role to detect the bacterial contamination in food sample. Based on the combination of the sensor output, quality of the food should be detected which is reported to the health center through IOT.

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 Keywords

Food quality, biosensor, nutrients, IOT

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The level of pollution has increased with times by lot of factors like the increase in population, increased vehicle use, industrialization and urbanization which results in harmful effects on human wellbeing by directly affecting health of population exposed to it. In order to monitor quality of air, IOT Based Air Pollution Monitoring Systm has been proposed. The Air Quality is monitored over a web server using internet and will trigger a alarm when harmful gases like CO2, smoke, alcohol, benzene and NH3 present in the air. It will show the air quality in PPM on the LCD and as well as on webpage so that we can monitor it very easily.

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 Keywords

harmful gases, Air Pollution, Gas sensor.

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