Strengthening of rock

Compound «SKAT»

is a universal geocement for all varieties of rock and ground.

 

Owing to its low viscosity it possesses high penetrating properties, it polymerizes in media of any humidity and in a wide temperature range, moreover cement seams are characterized by zero filtration and high mechanic strength.

The main physical, mechanical and technological properties of the compound «SKAT» are as follows:

Gel formation time of the compound «SKAT» with the optimal hardener concentration of 8…12% is 20…40 min.

In case of necessity and in accordance with customers’ order the alteration range of these parameters may be expanded.

Adhesive strength of the compound «SKAT», which is the main measure of the cement quality, is compared to the expensive foreign samples of polyurethane and is characterized by a very high durability in time. In rock and ground with high water content that are prone to plastic deformation adhesive strenght of the compound “SKAT”is less than 2 mPa.

Compound «SKAT» is ecologically safe.

Unlike other carbamide–based compounds, this compound in the process of hardening does not evolve free formaldehyde (methylene oxide).

adhesive strength,mPa - 2,4 – 3,2

compresive strength, mPa - 25 – 31

type of rocks to be strengthened - any

initial viscosity, mPa·c - 150 – 250

hardened material shrinkage value,% - 0,6 – 2,1.

 

Comparative characteristics of compounds for strengthening rock and ground

Application

Compound «SKAT» can be used efficiently when solving a wide range of practical goals among which the following ones should be noted:

strengthening of non–stable rock massif when driving and restoring underground mine workings;

strengthening of coal massif prone to sudden coal caving and breaking in conditions of stops and development headings at the steep seams;

strengthening of rock massif and soils to prevent slides and rock falls;

strengthening of pit edges;

waterproofing of embanking water–development structures (dams, embankments and canal edges);

strengthening buildings and structures foundations in complicated operation conditions;

strengthening and hydroinsulating contours of structures and their surrounding massif when developing underground areas of large cities;