Posts Tagged ‘equipment’

Professional Plumber

Professional, where are you? From time to time we have to deal with the problems of repair or upgrade plumbing and sanitary equipment. Naturally minor repairs such as replacing faucet installation or repair toilet tank we can draw on their own. But if the question concerns the mounting of the heating, water or sanitation, in this case challenge the master is inevitable. Many of us have been taught by bitter experience "Miracle masters," so the first thing we look for a wizard or a company with a recommendation. But how would it be if you advise the master or who can not, and you continue to fester in doubt. Gone are the days when a locksmith plumber could not come to the sober, with a single key, turn off the water and get back to you within a few days. At the same time to do quality work and cost of services increased as a consequence, we become hostage to situation. And do not forget about the lack of materials than can also benefit from the master.

Today, because of the abundance of competitive ability of firms, a company prefers to keep its reputation on high. Attendants Company staff is qualified training is provided with the tools of good quality. Professional Master can offer you several solutions to this or that problem, the choice of material which can plumber mechanic work and multilateral. With the technical development of sanitary material heating system, for example, can be mounted as PVC pipes, as polypropylene or copper pipe. AND when working with each material requires certain skills, as well as the necessary set of tools. A good master has a large number of tools and work clothes with the name of the organization. And do not Remember that professional master advises that you want to listen. Enjoy your repair.

Winter and Concrete

There are two main methods of winter concrete work: with heating (including electrowarming) and with pro- supplements. Warming up is especially helpful when a sufficiently large arrays of monolithic concrete. For narrow joints this method can not be recommended because it is not enough to warm the actual concrete seam, it is necessary to ensure a positive temperature adjacent arrays of prefabricated elements, intensely consuming the heat from the concrete joint. In addition, warming (particularly elektroprogrev) narrow joints leads to rapid drying of concrete, quality of welds obtained in this unsatisfactory. The most useful when frosts, reaching -30 C, to zamonolichivanie seams with antifreeze additives.

This allows virtually year-round in most parts of the North. Antifreeze additives must meet the following basic requirements: have a wide temperature range of their possible use; provide enough intensive growth of concrete strength at low temperatures, to ensure workability (Adaptability) of concrete with additives, to improve, at least, not to reduce the frost resistance of concrete, be economical and affordable. The most affordable and accessible additives are a mixture of calcium chloride and sodium. However, they can not be recommended as it causes corrosion of reinforcement. Common antifreeze additives are potash and sodium nitrite, and mixtures thereof. These additives can cause alkaline corrosion of concrete, in addition, the use of sodium nitrite leads to some reduction in water resistance and fracture toughness of concrete. Potash is added to the concrete at temperatures up to -30 -35 C, sodium nitrite – -10 C in the following amounts (% by weight of cement).