Cement-clay and cement-licenstic solutions for masonry

In order to put really high -quality brickwork, it is necessary to have not only a tool and a brick, but also a binder – a solution. A solution for laying brick is prepared from a mixture of sand and cement powder. Previously, the sand must be sift very carefully. It is on the ratio of these two components of the solution that its plasticity depends, or, as they say, mobility. If there is more cement in the solution, then it is less mobile.

You can also find cement-clay and cement-cement-cement solutions for masonry bricks. They are more mobile, and this property is used for some types of masonry. Working with high -plastic solution is more comfortable, although this method is not always suitable.

For example, when laying hollow bricks, a plastic solution will flow into voids, which will reduce the thermal insulation properties of the wall and increase the flow rate of the solution. To determine the plasticity of the solution, a special tool is used – a reference cone. It is a heavy metal tool with divisions inflicted on it. By the depth of immersion of this device in the solution and determine its plasticity.

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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.