Concrete 2

Posted by admin on January 26, 2018
Category: Orthodontist

Concrete is one of the many essential components in creating the massive skyscrapers we see today. It’s what’s used to build our homes, pavements, roads, schools and other establishments for its durability and ability to gain strength as years go by. Concrete can withstand earthquakes and other natural disasters. One example of concrete’s durability is the 1500-year-old Roman Colosseum. Not many realize that concrete is the world’s most used man-manufactured material and is used more than plastic, wood, aluminum, and steel. None of these listed above can substitute concrete in terms of price and usefulness. It doesn’t attract pests, mold or moisture like wood. It is relatively affordable and easy to produce compared to steel. It is fire-resistant, unlike plastic and wood. Concrete signifies our advancement, our status as the apex predator since everywhere you look nowadays, you see a concrete jungle just like the works from concrete Ann Arbor.

What’s amazing with concrete is that it comes from a wet material. This means you can pour it into a mold and turn it into countless unusual inventions from furniture to jewelry. You’ll be amazed at how the same material used in building roads and skyscrapers can also be used to create appealing products.

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The most common ‘other use’ for concrete is furniture for indoor and outdoor settings. Creating them is a favorite for DIY-ers and chairs or benches are good projects for newbies. They’re usually made by pouring concrete in form/mold, and left to cure for 24-48 hours. This is a cheap project for DIY because you can use the mold more than once if you’re careful, thus creating multiple of the same design.

Another quirky, modern idea for concrete are lamps. Making them are quite simple if you have the right materials and tools. You can choose to build your mold with any shape you want, you just need to make sure they’re well-measured and drilled together. All molds have to be covered with silicone so that water and concrete do not spill. Since it requires electrical knowledge, it is advisable to put proper research and preparation into this project. Although the wiring isn’t complicated, you have to get a specialist if you aren’t confident with electricity. Another idea is to make pendant lights, lights hanging from ceiling held by strong cables or steel. This requires more electrical work since the wiring goes well beyond the walls. When you’ve progressed and become confident with your DIY skills, you can surely make more and even make money out of it.

Solid Poetry is art and technology on concrete. It is a very creative way to prettify boring concrete. This is most commonly done on public pavements and walls outside museums and schools. When the concrete is dry, it shows nothing but plain concrete. Once wet with rain or humid, the concrete shows whatever pattern is pre-applied. It is best on floors where there are frequent temperature and humidity changes, like gardens, saunas, and poolside. The pattern designs are limitless.

And while concrete is plain, it becomes expensive once processed with valuable elements like gold and stones, and successfully turned into jewelry. It is a favorite material used by DIY jewelers to work with, since it is simple and minimalist, and has a ‘raw’ look that replaces the era of extravagant necklaces.

A peculiar innovation for concrete is a fabric that’s been impregnated with cement. It is invented by the UK-based company Concrete Canvas. The fabric is made to absorb hydration until it forms a thin and durable concrete layer or what’s commonly known as concrete on a roll. It is waterproof, durable and fire-resistant.



Posted by admin on January 26, 2018
Category: Orthodontist

The Babylonians from 1700 BC used clay as their bonding substance and the Egyptians used gypsum and lime as binders, which more closely resembles modern concrete. Lime, derived from limestone and chalk, continued to be the primary cement-forming agent until the early 1800s. And in 1824, an English inventor named Joseph Aspdin ground together a mixture of clay and limestone. We now know it as Portland cement and is still the dominant cementing agent used in concrete production. It is a structural construction material most commonly known as aggregate (gravel and sand). Cement and water are mixed to make concrete.

Concrete is one of the better achievements of humanity as it embodies our tendency for stability. And like many other of our advancements, concrete is found in nature. We take it in its purest form (rocks) and process it until it meets our standards for creation and security.  Concrete is characterized by the type of cement mixture used, by its qualities or by the methods used to manufacture it. The character of concrete used in ordinary structures is established by its water to cement ratio. The less the water content, the more impregnable the concrete. The mixture has to have just enough water to ensure that each particle is surrounded by cement paste, that the spaces between them are filled, and that the concrete is fluid enough to be poured and spread effectively.

In 1867, a Parisian gardener invented ferroconcrete or reinforced concrete. This is when concrete is poured onto steel (rods, bars, or mesh), to harden. Plain concrete is unsuitable for structures since it does not withstand pressures such as wind, vibrations, or earthquakes. On the other hand, reinforced concrete combines the strength of steel and the strength of concrete making it capable of sustaining any heavy stress over considerable periods.

Another method used in construction is the use of pre-stressed concrete achieved by either pre-tensioning or post-tensioning. Pre-tensioning sees lengths of steel wires, ropes or cables stretched and weighed down in an empty mold. The concrete is then spilled and left to set, and the fastens are released. The concrete gets compressed as the steel returns to its original length. In post-tensioning, concrete is poured and only then is the tension applied. The level of compression transmitted to the concrete is carefully regulated.

When you’re dealing with concretes, there is always a big chance that you will damage your nails. You can check out a cheap nail salon to repair your nails if that’s the case. By then you can just go and visit Switzerland for your extra time!