...Processing cement Mining and Quarrying The production of cement begins with the extraction of raw materials via mining and quarrying. Once a suitable large deposit has been found, the production of cement begins. Firstly the raw material, limestone, clay, iron ore, is blasted or drilled into depending on the depth of the deposit. The most central materials such as limestones will generally be mined on site and secondary materials will generally be mined on a nearby quarry. Whilst blasting any raw materials, site managers need to ensure that the best routine of blasting is practiced so that dust, vibration and noise pollution are kept to a minimum^(1). The blasted rocks will most often be of varying diameters and must be transported to a crushing plant. Crushing plants are set up close of the mining sites to reduce transportation costs and increase productivity and efficiency. Backhoe loading truck with blasted material ^(4) Crushing and Grinding The raw materials firstly go through a screening process which ensures only the required materials are crushed and no time and energy is wasted in processing waste constituents. Once the excessively large rocks are crushed into the desired size, the next step is...
Words: 833 - Pages: 4
...Experiences Journey to Cox’sbazar Our life is full of many experiences. Every day we got new kinds of experiences. It was 14 September 2010. I with some of my friends and senior brothers arranged a journey to cox’sbazar from Pabna. 14 September at 8.00 pm we started our journey from pabna. I was excited. Because I never went cox’sbazar and didn’t see the longest beach of the world. So all of us make a great fun on the bus. Suddenly one of our buses wheel is blasted. Driver somehow controls the bus and save us. Then driver and helper changed the wheel and we started our journey again. After that three times our bus’s wheel blasted in different location. But none of us was injured for those accidents. All of us were so much afraid because of those incidents .We had passed the whole day on the way. We also got some new experiences and make a great fun on that time. Then we started our journey again to cox’sbazar. When we cross Chittagong town, we met with rain. I enjoyed those lovely moments. At the night about 1.00 A.M when some of us was sleeping, suddenly our bus clashed with another truck near about cox’sbazar. Everything was happened in darkness. Two of friends were seriously injured for this accident. After a long journey of 31 hours we reached cox’sbazar and hospitalized those friends who were injured. Then we take rest in the hotel room. I with some of my friends went to see the sea beach in very morning. It was a memorable day of my life. Because, when I saw the beauty...
Words: 353 - Pages: 2
...relatively innocent compared to the other characters, only intended to help his friend Dr. Jekyll, by doing as he asks, assuming Jekyll is afflicted with some sort of cerebral disease. Lanyon is confused when confronted with the strange face of Hyde when he was expecting Jekyll, but he simply gives him the potion. Hyde, offers him the chance to leave, but he does not take it, and this was Lanyon’s downfall. Hyde asks Lanyon what he wants, “Think before you answer, for it shall be done as you decide. As you decide, you shall be left as you were before... Or, if you shall so prefer to choose, a new province of knowledge and new avenues to fame and power shall be laid open to you, here, in this room, upon the instant; and your sight shall be blasted by a prodigy to stagger the unbelief of Satan” (Stevenson...
Words: 495 - Pages: 2
...Managing the risks of variations in ground quality • the required shape of the tunnel • Required speed of construction, etc Controlled Blasting which reduces the impact of blasting energy on environment.. 3. CONTROL BLASTING: Controlled blasting is essential due to the impact of blasting on wall fractures and over break.It is also adopted to ensure safety of the rock beyond the designed contour.Controlled blasting is also recommended in the following areas. 1. Result additional tonnage to be removed and transported from the excavation site 2.Requires back filling of the over break portion to obtain the designed contour by consuming cement concrete etc., 3.Requirements of additional roof or wall supported by means of bolting etc., 4.When blasted below water level pumping off water and sludge becomes additional burden.Blasting induced ground vibration also open up the potential joints in the rock.To make the area water free added cost towards injecting water proof grouting is incurred. 5.Regular maintenance of the face/roof or sides add to cost of manpower etc. The techniques of control blasting: • Pre-splitting • Muffling • Perimeter Blasting • Smooth Blasting • Cushion Blasting 3.1. Muffling: After the connection of blast holes the area shall be covered by wire mesh/conveyor belts and sand/earth bags. Initially while creating free face in existing ground this arrangement is must. Once the vertical face is prepared, the fly of rock is controlled by correct design of controlled...
Words: 3453 - Pages: 14
...some more, until Francona signaled for them to come into a huddle. Then the phone rang. The cages went quiet, and Francona answered in a deep voice, “Hello?” There was a mumbled voice on the phone, and Francona hung up. “False alarm, I thought it was going to be bad. They just need you on the field. They need you guys to get ready and stretch out.” Francona said . “We gotcha Tito!” Napoli screamed. “Go hit some bombs boys.” Francona mumbled to them. Terry Francona walked up the stairs and looked at the clock, it was 7:47, and he wondered where the time went. Ramirez would go first since he hit the least number of homeruns so far in the regular season. He would face Mike Napoli, who blasted 29 home runs before All-Star weekend. Ramirez shocked everyone, and blasted 17 home runs, including a 467 foot shot to right. Napoli stood his ground though, belting 14, and 498 foot dinger to left. There was a half-hour break in between the quarterfinals, and Bauer went to his locker and grabbed his drone. He remembered that he needed to put new batteries in it, and without checking the safety he pried the battery compartment off. Holding the bottom, he accidently pressed a side button that only works if the safety is on. He pushed the button with his pointer finger, and the drone started up. Corey Kluber came in and Bauer didn’t notice the blade was moving and moved his hand up the drone. The blade then sliced his finger, and Bauer cried out in pain, “Ouch!” It wasn’t...
Words: 851 - Pages: 4
...Journal of Environmental Treatment Techniques 2013, Volume 1, Issue 1, Pages: 46-55 Enviro. Treat. Tech. ISSN: 2309-1185 Journal web link: http://www.jett.dormaj.com Taming the Monster - Attabad Landslide Dam Fiaz Hussain Shah, Arshad Ali*, Muhammad Naseem Baig National University of Sciences and Technology, Islamabad, Pakistan Received: 06/08/2013 Accepted:28/08/2013 Published: 08/09/2013 Abstract Hindukash - Karakoram - Himalayan (HKH) is a hazard prone region where triggering of landslides due to seismic, geological, hydrological or anthropogenic reasons is a common phenomenon. On 4th January 2010, a massive landslide at Attabad swept the low lying Surat village and blocked Hunza River thereby creating a dam resulting into a huge lake upstream. As a result of preliminary planning, emergency response was launched by Frontier Works Organization (FWO), a civil engineering component of Pakistan Army Engineers on instruction of the Federal Government and a 24 meters deep spillway cut was made through which the water started flowing on 29th May 2010 resulting into lowering of water in the lake. A detailed planning ensued and different proposals including those of Chinese, Americans and FWO were considered and finally based on cost-benefit analysis, the indigenous effort for execution was approved. FWO planned the operation in five stages whereby 675 meters long spillway was to be deepened by 30 meters having a width of approximately 60 meters resulting into lowering...
Words: 7605 - Pages: 31
...other human. WG: Slaves didn’t deserve the treatment they were given, now that they are free maybe people will see it our way. We had to speak up for those who couldn’t speak up for themselves. FD: Now wait a second, African Americans can speak up for themselves, you white folk just don’t allow it. You did this to me for years, allowing me to tell my heart-wrenching story to help sell your case, but not to speak my mind, to say what I believed in. WG: Well maybe I was wrong to restrain you but you didn’t even want the immediate abolition of slavery! FD: I didn’t believe that immediate abolition was possible, the war was inevitable. TA: You are exactly right there, these darned slaves wouldn’t have ever been freed if it weren’t for that blasted...
Words: 731 - Pages: 3
...Unit 1 – Explorations in Poetry & Prose “The main interest is the male characters.” Both Jane Eyre and The Magic Toyshop present the reader with a rogues gallery of men who exhibit the worst, and occasionally the best, traits of their gender. To a modern feminist, the suggestion that both Jane and Melanie are defined by their experiences with these male characters would be a heresy, but there is little doubt that the males’ primary function is to provide the challenges that shape the emergent womanhood of the female protagonists. They are interesting because they are grotesque. Jane’s early experiences with men are physically and verbally abusive, highlighting Jane’s vulnerability as both orphan and young girl in a patriarchal society: ”Wicked and cruel boy --- You are like the Roman emperors! “ This comparison may seem exaggerated, even comical, were it not to show how John’s reign of terror impacts on a young child whose only frame of reference lies in the books she reads so avidly. These early experiences also reflect the connivance of women in men’s abusive behaviour towards other women, whether through defect of character or social conditioning. “John no-one thwarted, much less punished…” John’s mother indulges her wayward son just as she preconditions Mr Brocklehurst in his treatment of Jane by calling her a liar. Melanie too is quickly exposed to the brutishness of a dominant male, the extreme effects manifest in the symbolic and actual silencing of...
Words: 1168 - Pages: 5
...separation, his awful, estrangement, his terrible sinfulness. Thus it is that I can urge men to obey the 1954 decision of the Supreme Court, for it is morally right; and I can urge them to disobey segregation ordinances, for they are morally wrong.” (Letter from a Birmingham Jail). Writing the intense phrases “tragic separation,” “awful estrangement,” “terrible sinfulness,” and “morally wrong” - that are contrasted with “morally right” - the audience subconsciously realizes the terrible the state of segregation. Also, King uses words like “us” and “we” to once again relate to the readers and make them feel involved in the prejudices themselves. “As in so any past experiences, our hopes have been blasted, and the shadow of deep disappointment settled upon us.” Not only that, the words “blasted” and “shadow of deep disappointment” continue to relay the message of negativity. The powerful diction of this letter’s primary importance was to display the extreme cynicism of racial discrimination. King also uses an abundance of antitheses to provide contrast in his writing. Most notably, antitheses appear in Letter from a Birmingham Jail to build the differences between two concepts in a rhetorical manner, as well as provide an aesthetic quality. Martin Luther King Jr. includes them in his writing on numerous occasions. In paragraph 9, when he states, “... so must we see the need for nonviolent gadflies to create the kind of tensions in society that will help men rise from the dark depths...
Words: 1151 - Pages: 5
...Over 294 mass shootings have occurred in the United States since the beginning of 2015. The details of these shootings are blasted across countless social media outlets informing viewers of every development that occurs. In the aftermath, issues such as gun-control policy and tighter security in public places rise to the top of the list of political agendas only to result in public frustration from monotonous legislative stagnation. Politicizing of these mass shootings has become largely formulaic due to the increasing popularity of social media. Leading theories propose that the intense stream of communication that occurs on social media blurs the lines between ‘social’ and ‘objective’ problems. Rather than focusing on the root cause that...
Words: 294 - Pages: 2
...In Martin Luther King Jr.’s “Letters to Birmingham,” he uses figurative language and literary devices to show the effects of segregation and to inform the eight white religious leaders that it was time to act. By using figurative language he helps the readers get a more detail and visual description of his purpose. His purpose for writing the letter was to enlighten the white religious leaders and show them that the church should be involved. Segregation was an act against God and it was time to act. For example, King states “…we were confronted with blasted hopes, and the dark shadow of a deep disappointment settled upon us.” King is using this metaphor to contrast to show how segregation has affected African Americans. Later he states “Individuals...
Words: 371 - Pages: 2
...cried would anyone hear me above their own fear? I remember the wailing of the walls and the merciless shaking of the ground and like sheep to slaughter we were led to this Godforsaken railway station. I’m currently sandwiched between an older man who hasn’t stopped praying since we got here, and a young woman who looks to be either sleeping or praying? I just want to grab that stupid crucifix from his hands and throw it as far away from me as possible, where was God when I needed him, when my mum is somewhere out there in the world. Alone. And all I can see is fucking darkness, maybe if I click my heels three times and think of home... Home, that seems alien to me now I wonder what’s left of it now, probably blown to shards by these blasted Nazi’s. I remember marking the door at my height every year and laughing at my sisters who hadn’t even grown an inch, those memories seem quite far away from me now. Today London will close its eyes and sleep, I hope for rescue soon. God save us...
Words: 301 - Pages: 2
...his straw house. The wolf cried, “Come out pig so I can turn you into bacon!” The wolf inhaled deeply and created a space like vacuum in his belly and exhaled a powerful wind blast towards the first pig’s house rendering it incapacitated. The first pig ran inside the second pig’s house. The wolf walked to the second pig’s house with a grimace expression and without hesitation hurled his grotesque acid based saliva at the second pig’s house. The pigs escaped to the third pig’s house as the first house was blown away and the second incinerated. Again, the wolf in rage launched a full scale attack blasting and spitting only to see the third pig’s house unscathed. The wolf exploited the third pig’s house and found a weak spot. He then ‘wind blasted’ his way through and upon leaping inside does he find himself in the lava pit where the vanadium metal is enriched. The wolf dies a horrible death and the third pig uses the vanadium wolf mixture to cover the weakened section of the house. The other two pigs take a note from this and adopt the third’s creation into their own. The...
Words: 326 - Pages: 2
...last year. The revised plan also give states more time to comply. Under the plan, Each US state will have an emission-cutting goal assigned to it and must submit a proposal to the Environmental Protection Agency on how it will meet the target. The plan also includes an incentive program for states to get a head start on meeting standards on early deployment of renewable energy and low-income energy efficiency. Even before the rule was announced, many states announced plans to fight it, including some vows to take the administration to court over the new rules. Critics also said that the plan will bring unwelcome increases in electricity prices. Opponents have already vowed to challenge the new regulations in court, and Republicans have blasted the proposal as overreaching and costly. "The rule runs over state governments, will throw countless people out of work, and increases everyone's energy prices...Climate change will not be solved by grabbing power from states or slowly hollowing out our economy," Republican presidential hopeful Jeb Bush said in a...
Words: 271 - Pages: 2
...awaiting for the time to arrive. As we drove to the movies it became hot, hotter and extremely hot. Even with the air conditioning on there was a massive heat wave spreading in the air, as the sweat drained down each of our faces. We finally entered the movie theatre and shouted, “Hooray” and started jumping up and down, simultaneously hitting our hands against each other. My family consisting of 4 members tried to enjoy the movie, but found it difficult because of the oppressive heat in the miniature room. When the movie finished, we raced outside to catch some fresh air, but we were surprised by the fiery red flames in the cloudy jet black sky. We had no idea what to do but run to our vehicle. There was one huge problem the fire blasted into flames by the parking lot. We all panicked and followed the crowd. They then led us towards the mall’s entrance. We stood there until the massive fire had been extinguished. In conclusion, this was the first fire experience my family and I experienced. It gave us quite a scare but we overcame it and let nature take its...
Words: 282 - Pages: 2
