Currently, such an industry as construction does not stand still, but is constantly evolving, introducing new technologies for mining and production of building materials, developing interesting methods for the construction and reconstruction of various objects necessary for human life.
1 Different interpretation of ASG
- 1.1 Sand and gravel
- 2 PGS - industrial civil engineering
Different interpretation of ASG
Often, studying the special documentation and confronted with the construction, you can find such an abbreviation, as CBC. People working in this field immediately understand what is being said. Under the CBC understand, firstly, sand and gravel, and, secondly, industrial civil engineering. Let us dwell on each definition.
Sand and gravel
Sand and gravel are non-metallic building material, which is characterized by a loose state, containing coarse gravel and sand. PGS has good physicochemical properties and, due to its reasonable cost, is widely used in the construction industry. Depending on the percentage of gravel emit:
In the first embodiment, according to GOST, the content of large fractions of gravel should not exceed ten percent. A classic blend is used in road construction. It is necessary for laying the top layer of the web, embankment and serves as a kind of drainage during construction. But for the alignment of the territory, this class of CBC is not suitable, due to the quantitative ratio of the fractions included in the composition (sand and gravel). For these works, it is better to choose an ROS.
Natural (classic) gravel mix incorporates additional natural materials, such as quartz, clay and other impurities. Plus, depending on the place of extraction, gravel composition may vary. It can be granite or limestone rocks, which will undoubtedly affect the quality characteristics of building materials.
The second abbreviation implies an enriched sand and gravel mix, in which the percentage ratio of the components is equal to 70/30. Thus, 30% is the sand content (that is, the volume of the mixture is ¼ of sand and ¾ of gravel). This type of building material get industriallyby adding gravel to the mix. Therefore, choosing an enriched mixture for the production of concrete and concrete structures, you can be sure that the final product will be dense, frost-resistant.
The mixture is mined with the help of special equipment from the bottom of rivers, sand pits and beaches. Accordingly, the characteristic properties of building materials depend on the place of production. The main and most important indicator of the CBC is bonding capacity. Due to this characteristic, this material is widely used in construction, namely:
- landscape design of the territory;
- road construction;
- concrete production;
- production of various reinforced concrete structures;
- plot alignment;
- filling holes, trenches.
When adding the PGS to water or cement, so-called construction solutions are obtained, which are further used for the manufacture of concrete. But, it is necessary to remember about the purpose for which the cement is made and, depending on it, to observe certain proportions of the chemical mixture and cement mortar.
Thus, with an increase in the amount of liquid, the final product is less dense, but if the solution, which serves as a link, is small, then the concrete will be tight and heavy for further work. It is also known the use of this building material in the construction of the roadway. With the help of the mixture, the territory where the construction is underway or the repair works have been leveled.
Thus, when choosing sand and gravel mixtures, it is necessary to clearly understand what they are for. If for road construction, a natural sand and gravel mix is suitable; if for landscape design or for the manufacture of concrete structures, it is better to work in the field.
PGS - industrial civil engineering
The second interpretation of the abbreviation ASG means industrial civil engineering. Builders are one of the sought-after professions currently. They develop the environment, making it suitable for human life and erect masterpieces of architecture. Engineers trained in the specialty of CBC are engaged in:
- construction of industrial facilities;
- project documentation;
- construction and installation of various objects;
- design of engineering systems and water disposal;
- survey of various structures;
- geodetic and environmental surveys;
- management throughout all stages of construction.
Thus, ASG includes all stages of construction, from project documentation to finishing the finished structure. Engineers take on tremendous importance in shaping the appearance of a village or city, from the creation of models of a village to the construction and restoration of various structures. Project activities include:
- conducting engineering surveys;
- selection, analysis and systematization of the materials obtained;
- creation of the layout of the finished object.
Management is the organization of the workflow, the making of important decisions and the responsibility for their execution. Under the inspection of structures refers to the inspection of the object, the analysis of the data and the reconstruction of the finished object.
In conclusion, it is worth repeating that the abbreviation of CBC implies two definitions: mixtures of sand and gravel for construction, as well as industrial civil engineering. Mixtures are divided into classical or natural and enriched. The first option is used mainly in road construction, but the second is preferable for landscape design. Industrial-civil engineering involves the development, analysis and maintenance at all stages of construction of the object necessary for human life.