Diamond cutting straight seam is widely used in the construction, renovation and modernization of large industrial buildings and civil structures (shops businesses, warehouses, logistics and retail and entertainment centers, supermarkets, train stations, stadiums, stations, parking lots). Concrete horizontal coverage of such structures must withstand considerable dynamic loads for a long time. However, in concrete with some internal tensions and external action is chaotic cracking up to the total destruction and unfit for further operation. Despite the fact that the concrete - one of the most enduring material, its structure is very fragile and non-plastics. Drying and solidification, poured concrete shrinks, while the upper part dries faster and more reduced in volume, the edges start to wrap. There is an internal tension, and concrete cracking. Cracks causes and effects of environmental conditions (sudden changes in temperature, ground water, subsidence of soil under the concrete base, landslides and earthquakes), and intensive load during its further operation (traffic, walking a lot of people work heavy equipment). Therefore, in order to prevent uncontrolled cracking of concrete ties industrial floors, at some stage in accordance with strict regulations are cut so-called expansion joints.
The main and most commonly used types of them - Contraction joints and insulation. Modern diamond Technology makes it easy, quickly, accurately and with virtually no noise and litter quality cut joints that do not need to continue to polish and correct. At this speed, quality, cutting sutures and the end effect is much higher than with traditional jointing uncured concrete floors. Cutting joints held not earlier than 12-24 hours after pouring the concrete screed and no later than 2-3 days. Concrete must have hardened, but not to the extent that begin to appear random cracks.
Sutures are cut by experienced specialists in strict accordance with the project - with strict observance of their depth and spacing between them. If the concrete screed has a rigid adhesion to the foundation of the building and the concrete bases for equipment, walls, pillars, it will crack from shrinkage. Therefore, that sex is not experienced under the influence of deformation of other structures of the building, cut insulating joints. This allows the concrete floor to move in both vertical and horizontal directions independently of the foundation, walls and columns. Insulating joints are cut along the walls, around columns and all around the entire foundation for the equipment. Their standard thickness - 13 mm. They are then cleaned of dust and debris and filled with a special flexible insulation material, sealant so that it did not reach the surface of the screed. To protect the edges of the seams of water, high temperatures and severe mechanical stress during movement of transport, as well as to facilitate the cleaning of concrete floors with insulation joints must be well sealed. Cutting the contraction joints shall after finishing the surface of the hardened concrete. Typically, they are cut in the same sequence with which the concrete was laid, the squares of card, as well as on all outside corners. The shorter the distance between shrink joints and seams than a direct themselves, the less chance of cracking. Typically, card cutting no more than 3x3 meters, passages and gangways distance between the seams equal to the width of concrete ties. Depth of cut - one-third the thickness of concrete screed.
The main and most commonly used types of them - Contraction joints and insulation. Modern diamond Technology makes it easy, quickly, accurately and with virtually no noise and litter quality cut joints that do not need to continue to polish and correct. At this speed, quality, cutting sutures and the end effect is much higher than with traditional jointing uncured concrete floors. Cutting joints held not earlier than 12-24 hours after pouring the concrete screed and no later than 2-3 days. Concrete must have hardened, but not to the extent that begin to appear random cracks.
Sutures are cut by experienced specialists in strict accordance with the project - with strict observance of their depth and spacing between them. If the concrete screed has a rigid adhesion to the foundation of the building and the concrete bases for equipment, walls, pillars, it will crack from shrinkage. Therefore, that sex is not experienced under the influence of deformation of other structures of the building, cut insulating joints. This allows the concrete floor to move in both vertical and horizontal directions independently of the foundation, walls and columns. Insulating joints are cut along the walls, around columns and all around the entire foundation for the equipment. Their standard thickness - 13 mm. They are then cleaned of dust and debris and filled with a special flexible insulation material, sealant so that it did not reach the surface of the screed. To protect the edges of the seams of water, high temperatures and severe mechanical stress during movement of transport, as well as to facilitate the cleaning of concrete floors with insulation joints must be well sealed. Cutting the contraction joints shall after finishing the surface of the hardened concrete. Typically, they are cut in the same sequence with which the concrete was laid, the squares of card, as well as on all outside corners. The shorter the distance between shrink joints and seams than a direct themselves, the less chance of cracking. Typically, card cutting no more than 3x3 meters, passages and gangways distance between the seams equal to the width of concrete ties. Depth of cut - one-third the thickness of concrete screed.
