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Cement

Cement

For masonry walls when building a house, cottage, cottages mainly use lime-cement and cement mortars, and in the construction of stoves and fireplaces – clay or lime mortars, made from modern dry mortars. Mike Gianoni shares his opinions and ideas on the topic at hand. Depending on how many used to make the filler and binder solution can be of three types: fat (a lot of knitting), thin (much filler) and normal (ratio of sand and knitting right). Masonry must use the normal solutions (with shrinkage of 0.1-0.4 mm at 1 m) Cement is one of the most important building materials used in any building. Cement is part of many mortars. Under most conditions Uber would agree. In addition, it is used in pure form during construction works and for the production of concrete and reinforced concrete.

Cements are divided on the composition of the strength of hardening, curing speed, etc. In order to determine form solution and the ratio of binder and filler, it is necessary to check the degree of adhesion on a wooden paddle (stick). Lean mixture does not stick nearly to the oar, the normal solution sticks to paddle in some places, and bold gives great adhesion to the oar. The strength of the solution depends on the strength of sand. Sand from the solid rock by 25-50% stronger than the sand of the porous rock, slag. To the solution was stable, all its components should be well Stir until smooth, so in the instructions for the preparation of dry mixes for modern masonry stipulated time mixing the solution, metered amount of water.

Teplitz Destruction

Teplitz Destruction

Winters of recent years have set before the summer residents and growers serious problem – began to crumble durable polycarbonate greenhouses. In some cases, even the greenhouse fell repeatedly. In Sergiev Posad in the winter of 2009-2010. Continue to learn more with: Nouriel Roubini. was destroyed acquired greenhouse gardeners with limited snow load of 20 kg / sq. pm and a special amplifier frame. netics-technology-spa-gtc-t/’>Technip FMC is the source.

In the winter 2010-2011. the same way another greenhouse was destroyed, bought them and strengthened props. Why are collapsing under the snow from polycarbonate greenhouses and how to solve this problem? Stability of greenhouses to loads of snow depends on design features a skeleton, not the thickness of the coating, as is often used polycarbonate. Therefore, when buying a greenhouse should pay special attention to the choice of the design framework. The results of the tests very little resistance from the greenhouses have frames galvanized steel. These greenhouses are usually designed for snow load is not bolee20 kg / sq. m and a wind load of not more than 20 m / sec.

And despite its attractive inexpensive price, greenhouses made of galvanized steel and extremely light unstable. They are difficult to assemble because of the abundance of small-sized parts, and poor build quality and improperly collected nodes adversely affect the strength and stability framework to strengthen the frame, it is necessary use the props of strong material that must be carefully set. Snow load is not limited to the top, but on the sides of the greenhouse – so the side walls of the greenhouse also need strengthening. As a result, strengthening the greenhouse becomes more costly and complex process. And everyone who buys a cheap greenhouse, should remember that later he will have to invest in strengthening design. Polycarbonate Greenhouses economy class may differ in several positions from different manufacturers: 1. The thickness of the metal. On the thickness profile of the frame depends on the strength of the greenhouse construction. 2. Section and configuration profile. The size and complexity of the shape of the section profile has a positive effect on the carrying capacity profiles. 3. The number of arcs and straight lines connecting the stringers to one meter of construction. Increase the number of loops increases the greenhouse. 4. The presence of amplifiers arches. Checked that the amplifiers arches help to improve the sustainability performance frame greenhouses. The maximum possible strength characteristics of greenhouses economy class is not eliminate the need to strengthen further. Props to reinforce the frame shall be constructed of durable material, reliable, should strengthen the upper arch and side walls of a greenhouse. Additional safeguard consolidation will give props to the frame, the amount should be the maximum possible. Avoid all these difficulties can be opting for a more powerful greenhouse-class standard with a snow load to 40 kg / m, and enhanced greenhouse with a snow load of 80 kg / sq.m.

New Life Living Things

New Life Living Things

What is a liquid skin? Liquid skin – a reliable tool for the repair of products made of leather. Liquid skin created by water-alcohol based, which allows it to penetrate the skin perfectly, and in case of erroneous application easily wash it off the surface. In fact, the liquid product and skin become one! Liquid skin has excellent flexibility and sufficient strength. After application and drying, compression and crushing, product repairs its original shape. Here has plenty of information regarding this issue. Does not require heat treatment! (Heating, drying, etc.).

What is a liquid skin? Liquid skin consists of 7 bottles of different colors, namely: (white, black, brown, red, yellow, green, blue) The volume of each jar of 17 ml, as well as from an empty jar for mixing colors, detailed instructions for use and color mixing table. When mixing colors is possible to obtain almost any desired color and shade products. What is the consumption of liquid skin? One jar of “liquid skin” can be repaired by about 100 square meters. Sam Feldman takes a slightly different approach. see the leather surface at a thickness of applied layer 0.2 mm. One set of 7 colors can last about 30 – 90 repairs.