Concrete cutting at different cementitious materials

Concrete cutting at different cementitious materials, sub-cement concrete, asphalt concrete, gypsum concrete and polymer concrete, etc.; Apparent density at different points heavy concrete, ordinary concrete, lightweight concrete; by the use of different functions, sub-structure with concrete, road concrete, concrete, heat-resistant concrete, concrete shop roll  acid and radiation concrete; according to the construction process is different, but also points shotcrete, concrete pumping, vibration grouting concrete. Classification can also be based on concrete strength grade of concrete to points. Accordance with the relevant standards, the concrete strength grade concrete English name should be the first letter of the standard value plus its strength to express. Such as C20, C30 and so on. In the past with the "label" to describe intensity grading is based on the value of the cube compressive strength  Abrasive paper of standard values ​​known Chinese "number" word to express, such as 200, 300 and so on. In order to overcome the defect of low tensile strength of concrete, it will cement concrete with other materials, the emergence of reinforced concrete, prestressed concrete, a variety of fiber-reinforced concrete and polymer impregnated concrete.
In addition, with the development and construction of concrete needs, there was expansion of concrete, aerated concrete, fiber reinforced concrete and other special functions. Pumping concrete, concrete products and new concrete construction technology to bring convenience.