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How does cement and concrete cause global warming?
When calcium carbonate is thermally decomposed to make cement, it produces lime and carbon dioxide. Carbon dioxide is a major greenhouse gas causing global warming. 900 kilograms (almost one tonne) of carbon dioxide are emitted for every tonne of cement manufactured. The cement industry is responsible for about 5% of all carbon dioxide emissions.
Why 2 gypsum is added in the cement?
The construction industry uses both the natural and the synthetic forms of gypsum in Portland cement manufacturing. Although the amount of gypsum used in the mix represents a small percentage of the volume of all ingredients, gypsum has important functions.
Who is the chief industry of Kenya because of all the many wild animals in the country?
Its chief industry is tourism.
How many square meters will a 25kg bag of cement do for house bricks single width?
That depends - Cement on its own isn't all that good at holding bricks together. It's normally mixed with sand and/or other substances. The ratio depends on the person laying the bricks.
Where can one find materials for a plastic conveyor belt?
Finding materials for a plastic conveyor belt can be done through hardware stores and large big box stores like Walmart. In addition, sites on the web like Amazon, eBay, and Re-purposed Materials Inc are all options.
What is the use of cement in construction industry?
cement is very useful in construction industry, as it is used for structures, decoration and we all know that everyday, new infrastructures are being built to improve our cities n country. material (aggregate) are being supplied to site to commencement of work in our industry.
Where is the best place to get good quality conveyor belting products?
Depending on the size of your job, there are a couple options for the best in conveyor belts. If you are looking for construction grade equipment, Phoenix Conveyor Belts is an innovator in the field. Their website is http://www.phoenix-conveyor-belts.com/themes/home/home.html. If you are looking for an all-around company, one who can provide everything from food grade conveyor systems to automotive plant and lumber mill systems, look into Habasit. They are an industry leader. Their website is http://www.habasitamerica.com/fabric/. The first place that i think you should check is http://www.conveyorbelt.com. They specialize in all types of conveyor's and belting materials. The second is http://www.epnuo.com which specializes in belting materials.
What does NCR means in Cement industry?
NCR in construction stands for a nonconformity control report. This report will list all of the elements in construction that do not meet or conform to the standards that are required by the law.
Who invented the conveyor belt?
Primitive conveyor belts were used since the 19th century. In 1892, Thomas Robins began a series of inventions which led to the development of a conveyor belt used for carrying coal, ores and other products.[4]In 1901, Sandvik invented and started the production of steel conveyor belts.In 1905 Richard Sutcliffe invented the first conveyor belts for use in coal mines which revolutionized the mining industry. In 1913, Henry Ford introduced conveyor-belt assembly lines at Ford Motor Company's Highland Park, Michigan factory.[5]In 1972, the French society REI created in New Caledonia the then longest straight-belt conveyor in the world, at a length of 13.8 km. Hyacynthe Marcel Bocchetti was the concept designer.[citation needed]In 1957, the B. F. Goodrich Company patented a conveyor belt that it went on to produce as the Turnover Conveyor Belt System. Incorporating a half-twist, it had the advantage over conventional belts of a longer life because it could expose all of its surface area to wear and tear. Möbius strip belts are no longer manufactured because untwisted modern belts can be made more durable by constructing them from several layers of different materials.[6]In 1963-64, First Indian Small Scale Industrial Unit with Japanese Plant for Rubber Belts for Conveyor / Elevator / Transmission was installed near National Capital Territory of Delhi and its MrBelts Conveyor Belting has been widely used in Steel, Cement, Fertilizer, Thermal Power, Sponge Iron Plants and Coal / Mineral establishments / Mines, Port Trusts and similar material handling applications of Industry for the last over 4 decades;
How does cement and concrete cause global warming?
When calcium carbonate is thermally decomposed to make cement, it produces lime and carbon dioxide. Carbon dioxide is a major greenhouse gas causing global warming. 900 kilograms (almost one tonne) of carbon dioxide are emitted for every tonne of cement manufactured. The cement industry is responsible for about 5% of all carbon dioxide emissions.
How does cement make concrete building?
cement is made with water cement mixture and sand after all of this is added
What is the purpose of belt conveyor?
Belt conveyor are maybe the most ordinarily utilized conveyor type. They are utilized as a part of the food processing business in both the handling and bundling of sustenance items. The smooth constant surface of a belt conveyor is perfect for sustenance dealing with. Belts for sustenance applications must be made of solid, sturdy materials.
How many times each day are battery chickens fed?
In most of them, they keep food going on a conveyor belt type thing all day.
Cement what it is used for?
Cement is used for various construction projects. Basically all of the modern building foundations are made of cement in one way or the other. There variations as to the kinds of cement but they are basically all meant for similar things. Sidewalks and pavements and certain sports courtyards are made from cement.
Why 2 gypsum is added in the cement?
The construction industry uses both the natural and the synthetic forms of gypsum in Portland cement manufacturing. Although the amount of gypsum used in the mix represents a small percentage of the volume of all ingredients, gypsum has important functions.
Who is the chief industry of Kenya because of all the many wild animals in the country?
Its chief industry is tourism.
Common Varieties of Conveyor Rollers?
Conveyor rollers play an integral role in the operation of a conveyor belt. Conveyor belts are able to handle large, bulky items, making them widely used in many sectors such as the packing industry. Common products carried by conveyor belts include automotive components, furniture, pills, powders, scrap metals and wooden materials. Depending on the purpose, different conveyor rollers are utilized.Gravity Conveyor RollersGravity rollers are less expensive than most other types of conveyor rollers. These rollers use commercial-grade bearings and work at low speeds. Gravity rollers are best suited for processes when noise is not a hindrance and they will fit the majority of conveyor belt systems.Grooved Conveyor RollersGrooved rollers are excellent for use in conveyor systems that depend on multiple rollers in order to function properly. These rollers are able to identify grooves. They are also spring loaded on both ends and are constructed from galvanized steel tubes, which resist corrosion. The ends of grooved conveyor rollers are contain crimped tubes, which provide bearing security. Grooved rollers have long bearing lives and are relatively simple to install. They can also remain strong against fast speeds and high loads.High-Speed Conveyor RollersHigh-speed conveyor rollers do not make a lot of noise while in use. These rollers prevent conveyor system wear-and-tear by giving the entire system an extended lifespan. High-speed, precision-powered rollers utilize conductive bushings, crimped tube ends and bearing caps. All three of these parts stop materials from being released from the tubes. Grooves and sprockets are also utilized on high-speed rollers that are a part of chain-driven conveyors and fixed shafts.Other Conveyor RollersChain-driven rollers and corrosion-resistant rollers are two other kinds of conveyor rollers. Corrosion-resistant rollers are equipped with lightweight steel tubes that are able to support heavy loads. Chain-driven rollers contain either single or double-sprocket welds in order to build the actual roller tube. Both of these conveyor rollers are simple to install and are capable of moving at high speeds.
