Domestic Bathtubs Lab Report Example | Topics and Well Written Essays - 1500 words

Domestic Bathtubs - Lab Report Example According to Wright, (1980), today, 62% of bathtubs, 28% of lavatories and 92% of whirlpool baths are made of plastic. According to Mazzurco (1986), the American National Standards Institute has set standards that manufacturers should observe when designing bath tubs. They may use enameled cast steel or iron besides plastic. Consumers are however taking into account the aesthetic features, safety, durability and environmental aspects when choosing bathtub materials. Customers and manufactures are now taking advantage of enameled or plastic bathtubs to design one-unit bathtubs. Safety, being an important factor to consider, is ensured in modern bathtubs by the use of prefabricated slip-resistant surfaces. The bath tabs should be leak free, the potential problem being solved by the provision of a moisture barrier between the subfloor and the bathtub, or ensuring that the base and the wall are integral parts of the bathtub. Bathtub Materials It is very important to choose the best mater ials for making bath tubs, just as it is important to consider its functions (Mazzurco 1986, pp.57). A wide range of materials that can be used to make bath tubs are readily available. However, they all have their own cons and pros of use. Other factors to consider in material selection are their cleanliness as well as longevity. These materials are in most cases available for spas, basic bath tubs and whirlpools. Examples of materials that are used to manufacture bath tubs are acrylic, cast iron, porcelain/ ceramic tiles, concrete, copper, cultured marble, fiberglass, granite, and porcelain on steel. Acrylic bath tubs normally chip and crack. Therefore, this material is reinforced by fiberglass to make it resistant. However, it is cost effective and light in weight thus allowing easier mass production. Bath tubs made of cast iron are very costly and heavy in weight. Manufacturing bath tubs with cast iron involves creating a mold according to the desired design, and then melting iro n and pouring it into the mold. Though they are expensive, they have two big advantages: many chemicals will not destroy the surface, and they firmly withstand abuse because it is nearly impossible to dent or scratch a bath tub made of cast iron. In its construction of porcelain or ceramic tile bath tubs, a wood form is produced and then covered in concrete. A gentle slope is essential as it ensures the right drainage. A water proof adhesive is used to glue the tiles to the concrete while cracks are sealed with grout. Unfortunately, they are often prone to small cracks that can cause leaks as a result of shifting of the whole house or form. Concrete is not a common material in the manufacture of bath tubs because of its high cost of labor. Concrete is either created in the factory or molded on site and then the finished product is delivered and placed in position. The biggest advantage of constructing bath tubs using tiles is that different textures and colors can be applied on the concrete. Furthermore, the material can conceive almost any color and shape. For a bath tub, copper is very costly to use. Another material that is normally used to manufacture bath tubs is cultured marble. Cultured marble is created by mixing polyester resin with limestone together and then coating it with gel. It is less expensive than cast iron but more

More and More Children Now Spend Most of Their Free Time Locked Away Essay

More and More Children Now Spend Most of Their Free Time Locked Away Playing Games - Essay Example This report approves that the society needs to perform its moral duty by keeping a check on the children. The compressed and restricted life of the modern world makes the adults hostile towards the kids. Children need to explore their physical abilities for which society needs to be lenient towards them. Modern technology gives us a lot of benefits but at the same time it has to pass through the criticism from every walk of life. People especially adults always admire the time they have spent without realizing that it had its own vices. This essay makes a conclusion that parents must accompany their children at the time of purchasing the games. They must look into the content of the game and see if it is suitable for their child or not. Healthy and educational games must be encouraged among children for their healthy growth. At the same time parents should keep a check on the duration of the play. Children must not be allowed to play games for a longer period. Rules must be set down regarding this issue and children should be made to realize the fact that it is actually good for their own health. To conclude it does appear that there is a link between uncontrolled use of video games and the anti social behavior of children. However, if the whole society including the policy makers, game makers, neighbors, schools and parents jointly combines in the effort to modify their children into healthy adults there is no chance technology like video games could have a negative impact on the lives of children. Every one needs to understand his role in the circle for a healthy future.