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Alternate Building Materials Used in The Construction Industry

PC: theconstructor.org Alternate building materials are those which can be used economically by replacing the conventional building materials. Alternate building materials are made from waste products and thus they minimize environmental pollution. These alternate building materials can be used when they meet their respective specifications in the code of practice. Here are some novel construction materials and technology, with some briefly discussed: Aluminum Bitumen Materials Soil Conditioning Agents Tempered Glass Crumb Rubber Fiber Reinforced Polymer Glass Fiber Reinforced Plastics Bamboo reinforced plastics Ferro-cement Polyester Fibers ALUMINIUM sound-proof-aluminium-construction. PC: theconstructor.org More than 3000 commercialized applications. 35 percent aluminum produced is used in construction. Non-Corrosive. High durability and low maintenance. Can be alloyed. Ductile and malleable. Aesthetically attractive. Applications of Aluminum In...
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New 'Artificial Leaf' That Converts Carbon Dioxide Into Fuel

Scientists have created an “artificial leaf” to fight climate change by inexpensively converting harmful carbon dioxide (CO2) into a useful alternative fuel. The new technology, outlined in a paper published on November 4, 2019, in the journal Nature Energy, was inspired by the way plants use energy from sunlight to turn carbon dioxide into food. “We call it an artificial leaf because it mimics real leaves and the process of photosynthesis,” said Yimin Wu, an engineering professor at the University of Waterloo who led the research. “A leaf produces glucose and oxygen. We produce methanol and oxygen.” Making methanol from carbon dioxide, the primary contributor to global warming, would both reduce greenhouse gas emissions and provide a substitute for the fossil fuels that create them. The key to the process is a cheap, optimized red powder called cuprous oxide. An hour-long chemical reaction creates the engineered red powder that is the key to new technology to tur...
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History of Man As Determined by The Prevailing Materials Technology of a Particular Era

Compiled by Abena Osei-Anane   [5 min read] The ages of materials technology - PC: pininterest.cl Earth’s beginnings can be traced back 4.5 billion years ago, but human evolution only counts for a tiny speck of its history. The pre-history period where there was no documentation of human activities roughly dates from about 2-5 million years ago to 600BC and is categorised in three archaeological periods: the Stone Age, Bronze Age and Iron Age . These periods are characterised by the prevailing Materials Technology present at a particular time. STONE AGE Getty images The Stone Age was the first age and the longest, from 30,000BC to 3,000BC. This era was marked by the use of stones to make tools and weapons . During the paleolithic period, early humans lived in small caves and were mostly hunters. They used basic stone tools as well as stone axes for hunting birds and other wild animals. They were the first to leave behind art by carving small figurines from stones,...
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Metal organic frameworks

Materials that reduce electromagnetic interference between electrical components in advanced electronic circuits and help aircraft, ships, and other military hardware evade radar detection rely on absorbing microwaves. Find out more 👇🏼 https://bit.ly/2JyIvo9 📱Like and follow our pages on Facebook (MATESA KNUST 2019) and Instagram (matesa_knust_19) © Ediboard '19
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Vibranium - The Wonder of Wakanda

Black Panther wearing Vibranium suit. PC: ucf.edu If you've ever thought that the Vibranium metal used in the Black Panther movie is a real material, you're possibly mistaken. What is Vibranium? Sourced from a meteorite that landed in Wakanda many centuries ago, Vibranium provides the superpower in the main character’s suit, absorbing energy and redistributing it. Vibranium (/vaɪˈbreɪniəm/) is a fictional metal appearing in American comic books published by Marvel Comics, noted for its extraordinary abilities to absorb, store, and release large amounts of kinetic energy. Mined only in Wakanda, the metal is associated with Black Panther, who wears a suit of vibranium, and with Captain America, who bears a vibranium-steel alloy shield which has never been reproduced. Real-world Material In 2016, Hyperloop Transportation Technologies developed a real-world smart composite material that they named Vibranium. The lightweight carbon fiber material for the Hyperloop ...
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The Natural Polymer That Controls Life - DNA!

Some life-forms on earth. PC: Micro [5 min read] In today's post on MATESA TODAY , we want to learn about a natural polymer (giant molecule) that controls all life-forms on Earth - in plants, animals, micro-organisms, etc. This wonderful material carries the instructions that are associated with the transmission of genetic information: the shape of your nose, the colour of your eye, people's height, their skin colour, etc.  This publication gives us some basic insight into  DNA . Sounds quite biochemical, but it has got the Materials Science aspect too - Polymers; though materials scientists primarily deal with synthetic polymers. But we usually take inspiration from nature to do new stuff, more technically, develop novel products. After all, we call it genetic material ! BASIC TERMS DEFINED Polymer means "many parts" and designates a large molecule made up of smaller repeating units. Monomer is a molecule that combines with other molecules of the same ...
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Personality of the Week: Mr Andrew Kyeremanteng Anokye

Mr Anokye, MATESA PTW For this week, our Personality Dialogue dial falls on a stalwart of the Department, Mr Andrew Kyeremanteng Anokye , a level 300 Materials Engineering student. He has great interest in Writing and is specially interested in Foundry Technology. Enjoy the 'ride' with him. Who is Mr Andrew Anokye?  Mr Anokye is a Christian gentleman who believes that as humans we have the greatness within to do more! What was your experience like in secondary school? Secondary school was a great place to be. I enjoyed every bit of my stay in PRESEC-Legon, where I chalked some successes. It was not just a good experience, but a great one. Materials Engineering. Were you given the programme or you really wanted to do it? What informed your decision if you chose it?  I wanted to be a Civil Engineer. My Uncle inspired me and that was my dream program. I was given Materials Engineering and at the beginning, the interest for the program wasn't there. I developed ...
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Personality of The Week: Prof. Samuel Kwofie

Prof. Samuel Kwofie To end this month's Personality Dialogue is the first Professor of Materials Science and Engineering in Ghana, Prof. Samuel Kwofie. He shares with us his rich knowledge and experience. Enjoy the read as you learn along. PROFILE Prof. Samuel Kwofie is the first professor of Materials Science and Engineering in the country. He lectures at the Department of Materials Engineering at the Kwame Nkrumah University of Science and Technology. He is the immediate past Dean of the Faculty of Mechanical and Chemical Engineering, formerly the Faculty of Chemical and Materials Engineering. He is an alumnus of Independence Hall in KNUST and Ghana Senior High Technical School (GSTS-Takoradi). He hails from Elmina in the Central Region. His skills and expertise include Powder Metallurgy, X-ray Diffraction, Mechanical Testing, Scanning Electron Microscopy, Failure Analysis, Mathematical Modeling, Experimentation, Characterization, Electron Microscopy, among others. ...
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The 'thinking metal': Shape Memory Alloy

Nitinol wires. PC: Wikpedia By Francis Agyemang, Member of the Editorial Team, MATESA KNUST We are the intelligent metal alloys !!! Yes! People prefer to call us shape memory alloys and it is the name we well deserve. We never forget our shape when thermal or mechanical load is exerted on us. Once the load is removed, we regain our pre-deformed shape. Our thermal deformation is very unique, unlike other metals, we deform under low temperatures and regain our shapes upon heating. Our effect (shape memory effect) was first discovered in an alloy of gold and cadmium (AuCd) by Swedish physicist Arne Olander in 1932. 2D view of nitinol's crystalline structure during cooling/heating cycle The two most prevalent smart alloys are copper-aluminium-nickel (CuAlNi) and nickel-titanium ( Nitinol). Though we have many uses and potential applications, we are commonly used in mending broken bones and making of dental braces. A nitinol paperclip bent and recovered aft...
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The Reason for The Season

Almighty, you could have snapped us into a blip to avenge for our unruly stubbornness and cruelty. You could have hypnotized us from the beginning of time to follow you with nothing called free will. No urge to disobey, steal or kill. But you chose to send your begotten son. In the beginning, you could have corrected sin and immorality yet allowed men to dwell in their carnality and later show them your sovereignty. Leaving His comfort zone, He came down to live as one of us. He was betrayed for a few denominations, chastised on several occasions but chose our salvation over condemnation. And for our sake He was condemned to death. To the wisdom of man, it was an improper fraction but to God a perfect solution.Though sinless and blameless, He bore the crossed burdened with our sins. Under the Heavy cross bathed in blood and sweat, he fell three times yet didn’t give up. He was poised to accomplish this mission of our salvation. Nailed to the cross, blood oozing from every part o...
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