Material+Review

Material Review

**Gustavo:** Hello, Adriana. I’m Gustavo Petit and I’ve done advanced studies on the concrete area, but I would like to know more about steel area. **Gustavo:** Would you be able to tell me some advantages of the steel?  **Adriana:** Sure. Well, the main advantage is the work time. Nowadays, society works in function of time, and steel is excellent on that aspect. The pieces of steel used in construction can be prefabricated, then, transported to the place and be ensemble at the moment of construction.  **Gustavo:** Good point. The concrete is different in that aspect. It needs time to be dried and to be prepared. Besides the work of the concrete is in-situ, that is to say, all has to be done in the place of construction. What another thing would you be able to say to me?  **Adriana:** Thus, Gustavo. Steel works very well in compression and in tension, which make it ideal for constructions of large heights.  **Gustavo:** I’ve listened that, but is certain that steel structures in cases of fire are dangerous?  **Adriana:** Yes, in The United States, for example, the law for constructions requires that metallic structures are covered with concrete to isolate heat. The heat can alter the structural **properties** of the steel, then causing the structure collapse.  **Gustavo:** Yes, that’s true. Now tell me about costs. Is positive to use steel in construction?  <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Adriana:** Yes, it is. As I said, to work with steel is very positive taking into account the factor time. Among more lately is the work time, it comes more expensive, by the expenses of work personnel and place maintenance. On the other hand, depending on the work, the material can become more economical. A building with large structures can be more economic if they are made in steel than made in concrete, for example. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Gustavo:** It’s certain, most common when a lot of work in tension is required, right? <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Adriana:** Yes. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Gustavo:** Ok, let’s continue. In the how good, esthetic aspect is that works with steel can be done esthetically very attractive, like the Pompidou in France or the Burj Al Arab in Dubai. Forms cannot be so plastic, when manipulating steel structure is doubling. It becomes that the structural properties of the steel are altered. On the other hand, the concrete can be used almost in any shape or form, as in Universidad Central de Venezuela, where many of the esthetic uses of concrete are expressed in the architecture. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Adriana:** Yes, Gustavo. The esthetic work of steel is on architectural composition, since isn’t a malleable material. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Gustavo:** After all, all materials are good. It’s just that they should be selected according to the needs of the environment and the economic situation. It’s ideal to be adapted to the social and environmental situation, and in the economic, too. Not only to the moment of the construction, but long-term, in all by the theme of the consumption of energy. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Adriana:** Yes. I’m totally agree. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Gustavo:** Thanks, Adriana, by attending me. I expect that as well as you taught me, I have also taught you. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;"> <span style="color: rgb(0, 128, 0); font-family: Verdana,Geneva,sans-serif;">**Adriana:** Thanks to you too by consulting me. Bye. media type="file" key="blabla.mp3" <span style="color: rgb(21, 147, 213);">
 * Adriana:** Hello, Gustavo. I’ve done advanced studies about steel and I can help you on that. <span style="color: rgb(21, 147, 213); font-family: Verdana,Geneva,sans-serif;">
 * Gustavo:** Bye.