Wet Fire: Why Skin and Cement don’t Mix
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Wet Fire: Why Skin and Cement don’t Mix
How to start a hardware store?
Image of DIY Cement Patio
Cement opened its doors to the fashion world. It was named “Concrete Genesis” by IVANKA. This is really something new for the fashion world especially into clothing line.
Top 10 Famous Sculptures in the Philippines
We all know that cement is the major substance or requirement to make beautiful sculptures here in our country. We all know also that without "cement" you cannot build towers, bridges, house and etc. Today, I will show you some list of famous artworks around Metro Manila.
1. EDSA People Power Monument
2. Quezon Memorial Circle
3. U.P. Oblation
4. Andres Bonifacio Monument
5. Cultural Center of the Philippines
6. Manila Metropolitan Theater
7. The Transfiguration
8. Pinaglabanan Shrine
9. Filipino Struggles Through History (Mural)
10. Carriedo Fountain
courtesy of Wikipilipinas.
Getting to know Portland cement
It’s amazing how people of the past made the immortal structures of today, like the Pyramids of Egypt! But it’s not without help from what we know today as Portland Cement. The common cement that we know today dates back some 5000 years ago and was used by the Egyptians to build their pyramids. What was originally only made from just ground limestone and gypsum was improved by the Roman civilization and was used to built another historical architecture, the Roman Coliseum!
Know how in some urban legends, they tell of how in building some structures, the sacrifice people as the “foundation” of the building? Well the Romans really did actually experimented on binders for the dry substance some of which aside from water are milk, animal fat, and you guessed it! Blood!
Actually, the common cement we know today, what we simply call as “just cement,” is specifically Portland Cement. This is the same cement developed since the age of Egyptian. In the progress of scientific research, it has been developed into a stronger and easier to use substance thanks to science, reacts with water to harder (instead of blood).
How it came to be named Portland Cement is that one Joseph Aspdin, the innovator and inventor of what we know today as cement, lived in Portland, Maine, USA and found that it resembled the color of the rock formations on the Portland Peninsula. Cement is so common, you’d have to wonder how something so bland in color have such a colorful history. Indeed, it is the foundation of a civilization.
Author Bio:
Pierre Angela Cruz is a Blogger and Marketing Consultant for Eagle Cement, a leading cement manufacturer in the Philippines. Check the website for more details. Follow her on twitter @cruisepyer.
A Quick Introduction to Cement
Cement is a fine mineral powder manufactured with very precise processes. Mixed with water, this powder transforms into a paste that binds and hardens when submerged in water. Because the composition and fineness of the powder may vary, cement has different properties depending upon its makeup.
Cement is the main component of concrete. It's an economical, high-quality construction material used in construction projects worldwide.
Cement is made by grinding together a mixture of limestone and clay, which is then heated at a temperature of 1,450°C. What results is a granular substance called "clinker," a combination of calcium, silicate, alumina and iron oxide.
(from http://www.vicat.com/en/Activities/Cement/What-is-cement)
An example of how cement can be made.
1.) Limestone is taken from a quarry. It is the major ingredient needed for making cement. Smaller quantities of sand and clay are also needed. Limestone, sand and clay contain the four essential elements required to make cement. The four essential elements are calcium, silicon, aluminum and iron.
2.) Boulder-size limestone rocks are transported from the quarry to the cement plant and fed into a crusher which crushes the boulders into marble-size pieces.
3.) The limestone pieces then go through a blender where they are added to the other raw materials in the right proportion.
4.) The raw materials are ground to a powder. This is sometimes done with rollers that crush the materials against a rotating platform.
5.) Everything then goes into a huge, extremely hot, rotating furnace to undergo a process called "sintering". Sintering means: to cause to become a coherent mass by heating without melting. In other words, the raw materials become sort of partially molten. The raw materials reach about 2700° F (1480°C) inside the furnace. This causes chemical and physical changes to the raw materials and they come out of the furnace as large, glassy, red-hot cinders called "clinker".
6.) The clinker is cooled and ground into a fine gray powder. A small amount of gypsum is also added during the final grinding. It is now the finished product - Portland cement.
The cement is then stored in silos (large holding tanks) where it awaits distribution. The cement is usually shipped in bulk in purpose-made trucks, by rail or even by barge or ship. Some is bagged for those who want small quantities. (From: http://www.buildeazy.com/newplans/eazylist/cement.html)
To know more about this cement manufacturing process. .You can visit this website. http://eaglecement.com.ph/.