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Non Siliconized Polyester Staple Strip Polymers
Jun 08, 2017

Non Siliconized Polyester Staple Strip Polymers

Fiberglass-Polyester Paving Mat is a new composite geosynthetics developed with geotextile, geogrid and strip polymer, and has good compatibility with asphalt mixture. Engineering practice shows that the fiberglass grille has no waterproof function, the grid can form an intervening effect with the asphalt mixture, but it is difficult to use in the fixed, easy to expand and not adorned, affecting the asphalt mixture of the normal paving and its reinforcement ; Geotextile can prevent underwater infiltration, but the geotextile in the hot asphalt mixture paving temperature of more than 160 ℃, its strength and creep resistance is poor and can not play the role of reinforced crack; and polyester fiberglass to overcome The shortcomings of both. It can effectively deal with road cracks and bridge and road water damage.

Polyester fiberglass cloth can withstand high temperatures of up to 258 degrees Celsius, so it does not melt or become brittle when paving asphalt concrete.

According to the following method of construction, paving polyester fiberglass cloth is very convenient.

◆ in the pavement will be paved polyester fiberglass cloth on the road cleaning work: remove dirt, gravel and dust, to ensure that the asphalt bonding effect.

◆ When the base pavement has a large crack (6mm or more), pit or broken, it should be filled to fill.

◆ The use of adhesive layer must be hot asphalt, can not use emulsified asphalt, or polyester glass fiber cloth to reduce the bonding effect.

◆ The optimum temperature for bonding asphalt is 163-204 ° C.

◆ bonded asphalt after the spill must be lost in the flow of pears before the pavement of polyester fiberglass cloth, or cloth is difficult to soak the asphalt, polyester polyester fiber cloth to reduce the waterproof performance.

◆ pavement polyester glass cloth construction of the ambient temperature must be above 4 ℃.

In order to achieve the best results, in the pavement polyester fiberglass cloth should also pay attention to the following aspects:

◆ Polyester fiberglass cloth must be installed on hot asphalt. We recommend the following asphalt .AC-20; PG64-22; AR8000; or piercing grade 60-80 asphalt. For extreme high temperature summer construction, recommended The use of relatively high viscosity of the asphalt, the following asphalt is more suitable for summer construction: AC-30; PG67-22; AR8000; or thorn as the grade of 40-60 asphalt.

◆ The best proportion of asphalt used is 1.1 liters / square meter, but depending on the actual situation of the installed pavement and the expected amount of overlap, the use ratio will have a range of 1.0-1.3 l / m2. Of the asphalt is heated to above 204 ° C because such an operation hinders the pre-maturation of the liquid asphalt

◆ Be careful when handling polyester fiberglass cloth, if the cloth roll from the transport vehicle down, will damage the polyester fiberglass cloth, resulting in application problems.

◆ If streaks appear in the installation, any stripes greater than 2.5 cm appearing in the direction of the pavement must be cut and overlapped together and immersed in the asphalt layer by hand. The polyester fiberglass cloth must be used Roll or brush to ensure that it is in full contact with the road and remove the bubble. Hot asphalt coating width must be in the width of the polyester fiberglass cloth plus 4 inches. Polyester fiberglass cloth in the curved surface is not easy to bend Or stretch. On the surface of the installation can be cut when the cloth can be mechanical or manual installation.

◆ Polyester fiberglass cloth can be installed using a tractor or truck dragged with a metal roller mechanism, the role of the metal roller is to ensure that the polyester fiberglass cloth flat spread on the road in the installation roller must be installed behind There is a row of brushes to ensure that the polyester fiberglass cloth is pressed in the asphalt coating. The polyester fiberglass connector must ensure a 10 cm stack in the length direction with a 10.2 cm stack in the width direction The top horizontal joints must be in the direction of the pavement, and all joints must be laped together.

◆ paving machinery or other vehicles in the installation of polyester fiberglass cloth in its above must be gradually to start, and must ensure that as little as possible to avoid, to avoid possible damage to the cloth. In the construction of the equipment, equipment tires must be attached to the cloth, the cloth as little as possible to avoid sanding sand. Do not reduce the amount of asphalt to reduce the adhesion of tires. The best practice is to spread in the overlapping parts.

◆ Paved roads can be opened when the contractor or the installation engineer is determined.