How to Work with Concrete

                                                           

Concrete is a material used in constructing a building. It is composed of sand, gravel, crashed stone, slag, ashes, burned shell and clay. It is then mixed with cement and water to bond it. The usage of concrete can be traced back in ancient times. The Assyrians and Babylonians have their own version of concrete using clay as the bonding substances. We can also put into consideration the Egyptian people who use lime and gypsum cement as concrete. The first modern concrete was introduced in 1756, when a British engineer by the name of John Smeaton mixed gravel as an aggregate with powdered brick into the cement. Until then concrete evolve as the time goes by. Here are the tips on how to work with concrete.

The first step in working your concrete is to secure the form of it. There are many forms in which you can chose from. These are the ready-mix concrete   transit- mix concrete and you-haul concrete. The ready mix concrete is the simplest form of concrete, you just add water and then you have your own concrete made right in front of you. This is not recommended for large scale construction as it will be too costly for a certain contractor. The second type of concrete is the transit-mix concrete which is delivered by you through a revolving truck. It is desirable for large project but you have to pay for the delivery and the pre mixing. The third type is the You-haul concrete this is done by renting a you-haul for the mixing of the aggregate and the cement. This is still costly though. The cheapest option for a large project is to buy the materials needed and mix it yourself.

The next step in working your concrete is to make your own concrete. When making your own concrete take not that it is made of four basic elements: these are Portland cement, fine aggregate such as sand, coarse aggregate such as crushed rock or gravel and water. You mix these elements and then you have your concrete. Remember to make your aggregates as fined as possible and free of dirt. The result of the concrete depends on how you mix the four elements.

Stone Crushing Process

The whole stone production line consists of vibrating feeder, jaw stone crusher, impact crusher, vibrating screen and belt conveyor. According to specific requirements, we can combine different models together to meet various needs.

First the raw materials are regularly conveyed into the elementary-crushing machine by the vibrating feeder, then the belt conveyor transfers the elementary products to impact crusher for secondary crush. The secondary products will be separated into stone of different sizes by the vibrating screen. The parts not satisfying the needs will be returned to the impact crusher for further crush.

In the construction and quarry, the sandstone is getting more and more widely used. The crushed stone is used mostly as recycled concrete aggregate for road construction and maintenance. It is also used for making cement and lime and other chemical applications, and in agriculture. Our company is the major crusher manufacturer in China, we have many types stone crusher machines for your reference, like cone crusher series plant, impact crusher series plant, jaw crusher plant, or our new product portable series crushing plant.
The stone crushing plant has excellent performances, the design idea is based on the client's requirements, which clears faults of the crushing place, surroundings and the complex basic configurations. It is really supply simpler, high efficient and lower cost machines for clients.

The whole line is highly automatic and the size of the finished products is even, good-shaped and can be adjustable, with portable primary jaw crushing Plant, low power consumption and high capacity, which is suitable for big, middle and small projects, such as road and bridge construction. The complete product line assures matching the right crusher to individual customer application requirements.

Sandstone is sand cemented together into rock, the structure is stable. Its color has a wide range from nearly white to nearly black, with gray, brown, red, pink and buff in between. The chemical constitution of sandstone is the same as that of sand; the rock is thus composed essentially of quartz. The cementing material that binds together the grains of sand is usually composed of silica, calcium carbonate, or iron oxide. Sandstones are used for variety of purposes. They are mainly used in paving, construction, road building etc. It is used as ornamental rocks for buildings, monuments, grave stones, and many other possible uses.