Who is Sanjay Jindal?
Who is Sanjay Jindal?
Sajjan Jindal (born5 December 1959) is an Indian entrepreneur. He is the chairman and managing director of JSW Group of companies diversified in steel, mining, energy, sports, infrastructure and software business. JSW Steel is India’s largest private steel producer.
Who is the CEO of Jindal group?
Sudhanshu Saraf
Who is owner of JSW group?
Sajjan Jindal
Is Jsw a good company?
In terms of having a decent salary, JSW performs at par with the competitors. They’ll pay you well. The kind of work which they do is pretty challenging and will fulfill your intellectual appetite. The only downside of working in this firm would be the hostile work environment.
Which grade of cement is best?
OPC 53 grade cement is the most preferred building and construction material for projects that require high tensile strength. You can choose to buy OPC 53 grade cement online as it has the grinding of clinkers to the maximum extent and this cement grade is finer than grade 43.
What is slag used in cement?
The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. – Ground-granulated blast-furnace slag (GGBFS)—Now known as cement, slag—granulated blast-furnace slag that has been finely ground and that is a hydraulic cement.
What is slag formula?
To form slag, soda ash (Na2CO2) is added. The slag can generally be expressed by the formula FeSNa2S(O). Both reactions 9.5 and 9.6 are heterogeneous and endothermic in nature.
Is slag cement a pozzolan?
Slag cement is a hydraulic cement while fly ash is a pozzolan. This information sheet lists the properties slag cement can bring to concrete in both plastic and hardened form.
What is meant by fly ash?
Fly ash or flue ash, also known as pulverised fuel ash in the United Kingdom, or coal combustion residuals (CCRs), is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired boilers together with the flue gases.
What is the cost of fly ash?
The traders can sell fine fly ash in retail in the domestic market at the rate of Rs 1,200 to 1,400 per tonne, while the reported international price of fly ash per tonne ranges from $70 to $ 130.
Why fly ash is used in cement?
Fly ash use in concrete improves the workability of plastic concrete, and the strength and durability of hardened concrete. Fly ash use is also cost effective. When fly ash is added to concrete, the amount of portland cement may be reduced.
Does fly ash absorb water?
Abstract. Concrete is a porous material and durability of concrete depends largely on the movement of water through the concrete. Hence, this paper presents the effect of fly ash on the water absorption of concrete. Cement was replaced with four percentages i.e,30%, 40%, 50%, 60% of Class F fly ash.
Is coal ash the same as fly ash?
Coal ash is a general term—it refers to whatever waste is leftover after coal is combusted, usually in a coal-fired power plant. It contains arsenic, mercury, lead, and many other heavy metals. Fly ash particles are the lightest kind of coal ash—so light that they “fly” up into the exhaust stacks of the power plant.
What does fly ash contains?
Fly ash consists primarily of oxides of silicon, aluminum iron and calcium. Magnesium, potassium, sodium, titanium, and sulfur are also present to a lesser degree. When used as a mineral admixture in concrete, fly ash is classified as either Class C or Class F ash based on its chemical composition.
Is fly ash hazardous?
Fly ash particles (a major component of coal ash) can become lodged in the deepest part of your lungs, where they trigger asthma, inflammation and immunological reactions. Studies link these particulates to the four leading causes of death in the U.S.: heart disease, cancer, respiratory diseases and stroke.
Are fly ash bricks safe?
Fly ash bricks are environmentally friendly as they are made of waste materials that come from combustion of coal in thermal power plants. There is no pollution or environmental damage, considered as a white category product.
What is problem of ash disposal?
One of the major concerns with fly ash disposal is the leaching of heavy metals to. underground water sources; arsenic, antimony, lead, cadmium and other toxic. metals may be contained within the waste, as shown by the average composition.
How dangerous is coal ash?
Coal ash is incredibly dangerous. Short-term exposure can bring irritation of the nose and throat, dizziness, nausea, vomiting, and shortness of breath. Long-term exposure can lead to liver damage, kidney damage, cardiac arrhythmia, and a variety of cancers.
Is it good to eat ash?
People take ash for fever, arthritis, gout, constipation, fluid retention, and bladder problems. It is also used as a tonic.
Can coal cause cancer?
Une et al. Coal miners had significantly higher risk of any cancer, and those with 15+ years of experience had significantly higher risk of lung cancer.
Is smoke from coal dangerous?
But the small size of toxic particles from coal makes them particularly harmful. They can include toxins like like arsenic, selenium and mercury that are small enough to slip past the body’s defenses and become absorbed into the bloodstream and lungs.
Is coal poisonous to humans?
Coal ash commonly contains some of the earth’s deadliest toxics: arsenic, lead, mercury, cadmium, chromium and selenium. storage, and contaminate surface waters and underground aquifers, where they can cause cancer and neurological harm in humans and can poison fish.
Are coal stoves safe?
As a way of warding off wintry weather, more people are turning to coal stoves and other supplemental heaters to warm their homes. But if not vented properly, coal stoves can be deadly. During the combustion process, carbon monoxide is created and can build up and slowly overcome its unsuspecting victims.
Is coal hotter than wood?
Coal ignites at a temperature more than 100 degrees higher than wood, and it requires a hot bed of wood coals to get it started. Being far denser than wood, coal burns more steadily and longer. Anthracite coal generates 8 to 10 percent ash per ton – more than wood.
Are coal stoves dirty?
Coal is only as dirty as you make it. You choose the appliance to burn it, you choose where to store the coal, you load the coal in the stove, you remove the ashes and you decide where to dispose of the ashes. Many times soft coal (bituminous) was used in lieu of hard (anthracite) coal.
What is the hottest burning coal?
Anthracite coal