Classification of polystyrene concrete: which option to choose

You decided to build a country house or cottage, what material to choose for its construction, here is the problem. There is a huge selection on the market, which material to give preference? We will consider one of these materials, this is polystyrene concrete. Polystyrene concrete, refers to light concrete, it includes granules of foamed polystyrene (like porous aggregate), various air -forcing additives, Portland cement and sand. The combination of all this gives polystyrene concrete excellent sound insulation, thermal insulation and fire protection. If we compare foam concrete and polystyrene concrete, then the latter, stronger by 20%. There are still significant differences, polystyrene concrete holds stretching well, easily saws with a saw and nails are easily clogged into it, which makes it possible to betray blocks, polystyrene concrete, any shape from a rectangle to the ball. Blocks made of polystyrene concrete, produce density from 250 to 600 kg/m2 and divide, in density, into three types.

Types of polystyrene concrete

1. D250-300 is used as a heater and in the construction of partitions.

2. D400-500 is used in the construction of supporting walls.

3. D500-600 is used to build supporting structures.

Taking into account species, polystyrene concrete, it is successfully used in private construction, used due to lightness, and when superstructure of buildings. From polystyrene concrete, the supporting walls can be built (no more than 3 floors). Wall masonry of polystyrene blocks is carried out on a special solution or using special adhesives. At the same time, working with special polystyrene solutions, the thickness of the pantry, should be no more than 12 mm. The solution is prepared directly at the construction site, it includes traditional materials for solutions as cement, sand, water, as well as foamed polystyrene and additives. Good choice for you.

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This object has such a fate that involuntarily allocates it among others in Kazakhstan. The bridge across the Ural River in the administrative center of the West Kazakhstan region began to be built in the “good old days”, that is, under the Soviet regime. Since the republic never had their own organizations specialized in this case, bridge builders from different Russian cities worked here here. Then there was a notorious “parade of sovereignty”, followed by an economic crisis. Although the construction of the bridge continued, however, the payment of the executed volumes was now constantly delayed, or even at all moved away for an indefinite period. For this reason, the bridge builders stopped working several times. However, the object in Uralsk is one of the most significant in Kazakhstan, and therefore did not forget about it: the press periodically woke up this topic. Increased attention is also explained by the fact that the bridge across the Urals does not just connect the two banks of the river, it makes up an important link on the shortest path from Central Asia to the European part of Russia. As a result, the story of the invitation of bridge builders from a neighboring state was repeated again and again, without a visible result. There is a rather funny moment in it. A couple of years ago, when the President of Kazakhstan Nursultan Nazarbayev arrived in Uralsk, the local authorities invited him to take part in the solemn open… bridge over the Urals. The head of state made sensory words and cut the red ribbon. But when the ceremony ended and the president left, the entrance to the bridge was closed. The fact is that every driver who would decide to update the shortest path from Central Asia to Russia could well have been on the other side, but at the bottom of the river. The object was not over. And the main difficulty was not so much in building a car transition through the Urals itself, but in the construction of multi -kilometer approaches to it through a constantly flooded floodplain. And work here still start and finish. And now in the republic they decided to return to the long -suffering object again. The Ministry of Transport and Communications of the Republic of Kazakhstan announced the competition for state procurement of works and services for the reconstruction of the bridge over the Ural River. The required delivery time within 2000. Potential suppliers who meet the qualification requirements stipulated in Article 10 of the Law of Kazakhstan “On public procurement” are allowed to the competition.