Meta Monday

 INTRODUCTION Concrete is consumed on the large scale each day over the globe. Cement is a key ingredient of concrete. But study says for each tonne of cement, there is approx 0.8 to 1 tonne of carbon dioxide emitted [Rubenstein, 2012].Taking into consideration the current scenario, minimizing the impact on environment and looking after energy requirements is an important factor for sustainable development in concrete production. Using alternative materials, or their mixes with cement, can be efficient way to use the industrial waste products. Metakaolin (a calcined clay) comes out to be an effective solution for this problem. In this blog we will explore the use of Metakaolin as partial substitute of cement in concrete, mortor. WHAT EXACTLY IS METAKAOLIN? Metakaolin(METAKAOLIN) is basically calcinated, or dehydrated kaolin clay in simple terms. Kaolinite is a clay mineral, also called as kaolin clay or china clay, chemical formula [Si4]Al4O10(OH)8.nH2O (n=0 or 4). It is majorly pr...

Hello and Welcome to Meta Monday.   Let us introduce you to today’s Agenda: ●        What Are Superalloys? And Why are they ‘Super’? ●        Types of Superalloys       ●        What can they be used for?   https://www.cam.ac.uk/research/news/super-superalloys-hotter-stronger-for-even-longer Alloys Metals are one of the primary components of everything humans have built. Infrastructure, transport, industries, everything is built using metals. But there are many metals each with its amazing characteristics. So why use them just one at a time? That’s where alloys came into the picture, a combination of elements of the periodic table in which at least one is a metal in specific proportions Few of the most common alloys are steel, bronze, brass, stainless steel, all are nothing but a specific mixture of elements. Humans felt the need to mix these metals or sustainability and re...

Do you know that the vantablack holds a world record of the darkest man-made material? YES, it is. So, it’s quite fascinating to learn about its extraordinary properties, applications, and how it’s made, isn’t it? Meet Vantablack here. It is the darkest material, a ‘ Byronic black ’ and it absorbs almost all visible light.  It may be viewed as a super-black coating made of ‘n’ number of carbon nanotubes!   Image Source: https://www.cnet.com/pictures/vantablack-swallows-everything-its-painted-on/         Image: Tourists Fell into This Ultra-Black Artwork That Looks Like a Cartoon Hole Image Source: https://www.sciencealert.com/somebody-actually-fell-into-ultra-black-artwork-   looks-fake-hole-vantablack-anish-kapoor History: It was invented in 2014 in the United Kingdom by British company Surrey Nanosystems . This name is an acronym of V ertically A ligned N ano T ube A rray B lack. It was origin...