Results (
Thai) 2:
[Copy]Copied!
Introduction
Offsite construction relates to construction activities that are carried out in a factory environment away from the site. Due to the set up of the offsite production facilities, and the possibilities offered to the manufacturers to improve the assembly process, offsite construction has a range of advantages compared to traditional build.
The importance of offsite construction methods, also referred to as Modern Methods of Construction (MMC), has increased since the mid-1990’s. These efforts were most pre-eminent in the housing industry where the housing associations established guidelines to facilitate the integration of light construction forms and offsite methods of construction. Offsite precast construction methods have been in use for over a century for a wide range of construction, from floors to high rise buildings, from single components to building systems.
Like other offsite methods of construction, precast concrete offers the known advantages in terms of efficiency of the construction process, improved construction programme, better budget controls, and improved quality. However, due to the manufacturing process, precast concrete also brings in important reductions in materials needed and in turn waste on site. This case study reviews the manufacturing and erection processes of precast concrete and highlights the impact of using precast concrete elements on construction waste.
The construction with the finished piece (Precast Concrete) began to be more and more popular because of the strength of the finished parts and systems that serve the construction of:
1.Time (construction time)
2. Cost (reducing the costs in construction)
3.Quality (can the construction quality is far better than) a brief by saying as follows:
1. Time: the construction of the finished parts system can reduce construction time drastically when compared to conventional construction systems. By building homes with 1 pole system if after-the original brick beams will need to take at least 2-4 months, but compared to the system of finished parts can be done in 1 week why Precast system creates faster because the wall is a handsome piece doesn't have to waste time like old plaster brick system.
2. Cost: even when comparing only the Precast parts and materials (made of concrete) are more expensive than brick price, but using Precast system will use less labor and not subject to the wood.
In addition to reducing the speed of construction operations (Overhead) down. When comparing the overall construction costs with ready-made parts have a construction value price.
Even in situations where labor costs are likely to rise by Precast construction is an alternative in the future no doubt.
3. Quality: because of the various parts will be produced from a plant makes quality control easy because no interference with the weather (rain, Sun) and independent skilled workers as much brick plaster will require very specialized technicians to design wall, but if they are sharing the Precast parts technician skilled labor.
Precast
In addition, there are also ready-made parts system advantages over systems, antenna-supporting structure. Many, such as the ability to prevent noise strength of walls that make it safe: the invasion.
Although construction system with finished parts system will have many advantages, but there are some consumers. Also there is no confidence in this system, both in terms of leakage and cracks problem.
The problem might be a demilitarized zone from homes built with parts of the country the first in Thai. Because even though this system is widely used in foreign countries for a long time, but when it is used in Thai. Everything to do with early learning heuristics, such as the Joint from abroad is used at all, but since the country is Thai rain water protection methods to chukkwa the old ban has not been used or has cracked up because designers and contractors in the early did not have sufficient expertise.
Current construction method, in which a piece of finished systems have developed improved until they can resolve it.
Construction of the system with the most current finished parts will be used in housing and begin to bring to a larger building. After starting out in private construction increased due to the construction of a short time in construction.
With the system is a system with precast parts design, manufacture and quality control. The use of materials in the production process quality control. The set or assembly is a structure has good standard under control conditions.However, in terms of material selection in making precast parts. It is made of reinforced concrete with strength according to the strength of the structure.Because the reinforced concrete has the very well. The properties of concrete with high water opacity The cutoff means water or moisture can not seep through easily.Made of concrete, can store water). Another feature of concrete is able to resist fire or fire resistance is no less than two hours, and non-flammable. The design criteria for concrete wall with thickness not less than.Cm a fire resistant wall, observed from a ladder by buildings. Be made of reinforced concrete. From the property with high opacity (firmness), concrete is much keep noise well.Of course the fullness or density compared to the masonry wall building precast has thermal conductivity than the air of the room of the wall precast temperature is higher when there is no sun wall Lose one.And it came to pass, when the concrete parts connected together in a manner. It is an important part of the system of precast. In general, in the structural design of precast system must consider is the point (Joint) joint design (Connection Joint).Such as, tension, shear, compression, later such joints must be beautiful can prevent water or moisture (rain) due to our house from located in hot condition Humid conditions hot and rainy.Seepage of water or moisture happens affects the walls, floor, ceiling or other in the home or building. So it is a weakness of the system of joint precast another point. To be considered and verify.?Because the joint precast if designed to use joist type silicone (like the windows, doors, made from aluminum). I usually have a deterioration due to longevity and durability with UV from sunlight.(life 5-10 years). Depending on the quality and type of silicone used. Interface for use with a solder joint mortar (cement, sand, water) or material of the sleep of Gera (Non initiative -shrink grout).(shrinkage) of cement, sand, or motorcycle parts guitar with a concrete precast Because the concrete shrinkage than cement, sand, or mor guitar very much. The cases used to sleep as it has found the problem less armor using lime sand in general.The strength or strength of sleep as armor to there is no less than concrete.
Being translated, please wait..
