The crust of the earth is made of hard material from the deepest seabed up to the tallest mountain. This is called the lithosphere. It is in this layer that rocks and stones reside. With the passage time man began to build structure. To build these, were needed. Man also began to move from one place to another, creating roads in the process. In the modern era, building grounds and highways get and use the specialty stone paving NH.
A land area that is carpeted by rigid surfacing is called a paved surface. A variety of reasons exists why this is so. One cannot erect something on soft land as it would fall over. So to make it remain standing, the ground on where it is erected should be rigid so it can hold weight. An example of this is an ordinary street which can hold heavy cars and trucks passing on it.
Exterior covers come in many forms and sizes. The most common is the paver. Various types of that have been used since the ancient times. Most often people would use the kinds that are readily available in the area. At present a vast majority is being made of concrete.
The earths geological foundation is the crust. In this reside different kinds of rocks. Formations of these exist in all land masses. In Egypt sandstone and limestone is common. These were used to build the pyramids. A combination of sand and turpentine is called asphalt. This is widely used in third world countries.
The method of extracting stone from the earth is called quarrying. In olden times this was done by hand employing different kinds of tools. Rocks were hewn with hand tools and hauled by manpower when slavery was still in vogue. But today all big quarries employ heavy equipment to cut and form rocks or mine underground.
Architecture finds its best expression in stone. The roman aqueduct is marvel made of it. The great London Bridge is another. In Asia a great civilization built the Angkor Watt in Kampuchea. In the Americas, the great Machu Picchu rise high above the mountain. There can be found so many uses, from simple post and lintel sites at Stonehenge to the massive silos holding nuclear missiles.
Every day there is a structure being put up. When this happens there is a requirement for this resource. This is a big business. Conglomerates and business establishments manufacture both natural and pseudo materiel to supply the demand. Distribution and transport companies compete with each other for deliveries.
The world today is driven by economics. When a country has a booming economy, infrastructure projects abound. Where there are projects, the demand for building materials increase. With the increase in demand, supply becomes scarce. It now is imperative for man to use ersatz as substitutes.
As with everything in this world, there always will be a certain advantage or disadvantage in choosing one form of matter over that of another. To protect the earth, regulations must be passed to limit the extraction of perishable resources.
A land area that is carpeted by rigid surfacing is called a paved surface. A variety of reasons exists why this is so. One cannot erect something on soft land as it would fall over. So to make it remain standing, the ground on where it is erected should be rigid so it can hold weight. An example of this is an ordinary street which can hold heavy cars and trucks passing on it.
Exterior covers come in many forms and sizes. The most common is the paver. Various types of that have been used since the ancient times. Most often people would use the kinds that are readily available in the area. At present a vast majority is being made of concrete.
The earths geological foundation is the crust. In this reside different kinds of rocks. Formations of these exist in all land masses. In Egypt sandstone and limestone is common. These were used to build the pyramids. A combination of sand and turpentine is called asphalt. This is widely used in third world countries.
The method of extracting stone from the earth is called quarrying. In olden times this was done by hand employing different kinds of tools. Rocks were hewn with hand tools and hauled by manpower when slavery was still in vogue. But today all big quarries employ heavy equipment to cut and form rocks or mine underground.
Architecture finds its best expression in stone. The roman aqueduct is marvel made of it. The great London Bridge is another. In Asia a great civilization built the Angkor Watt in Kampuchea. In the Americas, the great Machu Picchu rise high above the mountain. There can be found so many uses, from simple post and lintel sites at Stonehenge to the massive silos holding nuclear missiles.
Every day there is a structure being put up. When this happens there is a requirement for this resource. This is a big business. Conglomerates and business establishments manufacture both natural and pseudo materiel to supply the demand. Distribution and transport companies compete with each other for deliveries.
The world today is driven by economics. When a country has a booming economy, infrastructure projects abound. Where there are projects, the demand for building materials increase. With the increase in demand, supply becomes scarce. It now is imperative for man to use ersatz as substitutes.
As with everything in this world, there always will be a certain advantage or disadvantage in choosing one form of matter over that of another. To protect the earth, regulations must be passed to limit the extraction of perishable resources.
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