At the end of XIX in. In Russia, the production and use of hollow concrete wall stones made of concrete gyurtler began.
They were first made in 1896., And Gyurtler himself built the first house from such stones in 1898. In St. Petersburg. As a result of a special examination of the first buildings and the conclusion of the chemical laboratory of the St. Petersburg Institute of Traffic Engineers of Transa. The complete suitability of stones made of light concrete of Gürtler – the so -called concrete, the composition of which was established in the following proportions: brick crushed stone – 3-4 hours was established. and the boiler room Gary – 4-5 hours. However, since 1906. In St. Petersburg, they began to use stones from dense concrete, and therefore the heat engineering qualities of the walls worsened, the walls were raw. But in 9 g. The authoritative commission figured out this issue and reported – the All -Russian Congress of Technicians in Fire Building has its own conclusion on the need to establish the nomenclature of concrete used and their thermal conductivity coefficients.
In 90-92. Various systems of wall hollow stones were proposed, respectively, the machine for their manufacture (Liliput, “peasant” machines, the “peasant” stones proposed in 92 g were most famous for a long time for a long time. Ing. WITH. L. Prokhorov5. They had several rows of slit -like vertical voids, which are the most effective in heat -technical terms. Therefore, such stones could be made both from light and heavy concrete, g. proposed to use vibration for compaction of concrete stones and designed a special device.
Pile clipping is an important part of the initial construction work. It is important to trust only the most reliable specialists as immersion of piles.
In St. Petersburg at the beginning of XX in. Work for the production of wall hollow stones (equipped with a powerful press. Typically, the size of the stone in width and height was about 20 cm, and up to 50 cm long. They were transferred and stacked by one worker. However, sometimes larger stones were also made, which were the predecessors of the subsequent transition from small blocks to large. The company and Co ° had in the nomenclature of its products hollow concrete stones of concrete and the 4th floor of stones.