Kon lahimlarini barрo

2. Reinforcement materials

Materials used in the preparation of mine reinforcements are reinforcement materials. It is necessary to be heat-resistant and non-flammable, rust-proof and non-rotting.

At the present time, the mine lahim in mines and quarries must be used
rolimer materials are used as reinforcement materials for reduction. Wood materials are used more often than others to strengthen mine welds . Because wood is dense in relation to its mass , it is easily processed and relatively cheap. But due to the fact that wood reinforcement materials are flammable and prone to decay
it is not free from shortcomings, such as a short working life.
As wood reinforcement materials, logs, brus, planks, garbil and the like are used. # Log - a piece 9 mof tree trunk with a length of 5 to 12 cm and a diameter of the upper end .
Brus - cross -sectional surface is rectangular, width
thickness equal to or twice as large
fat hungry Board - the width should be at least twice as large as the thickness .
gan , sawn long wood. Garbil is a piece of wood that is flat on one side and spherical on the other.
rudnik 0,5 m) column, which is 5 meters tall and 7 to 30 cm in diameter at the top.
Metal also has a number of properties such as flexibility, reusability, long service life, fire safety, and is widely used as a reinforcing material in mining practice. Cast iron and roll castings, roll profiles are used to strengthen mine welds.
Concrete is a high-strength, long-lasting, non-flammable and relatively inexpensive reinforcing material.
Currently, natural stones are a reinforcement in mining
It is rarely used as a material .
Artificial stones such as concrete blocks, reinforced bricks are used to strengthen karital mine joints.
Rolimer reinforcing materials are also used to strengthen mine solders, as well as artificial materials with a synthetic chemical composition, such as glass plastic, elastic concrete, coal plastic.