Bituminous Sheet Membrane

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The waterproof material products made by impregnating asphalt or polymer waterproof materials on the carcass are provided in the form of coils, which are called waterproof coils. According to the different main components, it is divided into asphalt waterproof membrane, polymer modified asphalt waterproof membrane and synthetic polymer waterproof membrane; according to the carcass, it is divided into carcassless membrane, paper tire membrane, and glass fiber Tire rolls, glass cloth tire rolls and polyethylene tire rolls.

Waterproof membranes require good water resistance, stability to temperature changes (no flow, no foaming, and no movement at high temperatures; no brittleness at low temperatures), a certain degree of mechanical strength, elongation, and fracture resistance. Have a certain degree of flexibility and aging resistance.

Waterproof membrane is a rollable sheet-like waterproof material. It is one of the important varieties of waterproof materials in construction engineering.

According to its main waterproof component materials, it can be divided into three categories: asphalt waterproof material, polymer modified waterproof membrane and synthetic polymer waterproof membrane (SBC120 polyethylene polypropylene composite membrane). There are a variety of waterproofing membranes such as PVC, EVA, PE, ECB, etc.

Asphalt waterproofing membrane is a rollable sheet-like waterproof material made by dipping the base tire (such as base paper, fiber fabric) with asphalt, and then sprinkling a powdered or sheet-like isolation material on the surface.

Description

1. Water resistance

Water resistance means that its performance is basically unchanged under the action of water and after being infiltrated by water, and it is impermeable under the action of pressure water. It is usually expressed by indicators such as water impermeability and water absorption.

2. Temperature stability

Temperature stability refers to the performance of non-flowing, non-foaming, non-sliding at high temperature, and non-brittle cracking at low temperature, that is, the ability to maintain the original performance under a certain temperature change. Commonly used indicators such as heat resistance and heat resistance.

3. Mechanical strength, elongation and fracture resistance

It refers to the performance of waterproofing membranes to withstand a certain load, stress or not to break under certain deformation conditions. Commonly used indicators such as tensile strength, tensile strength and elongation at break.

4. Flexibility

Flexibility refers to the performance of maintaining flexibility under low temperature conditions. It is very important to ensure easy construction and no embrittlement. Commonly used indicators such as flexibility and low-temperature bendability.

5. Atmospheric stability

Atmospheric stability refers to the ability to resist erosion under the long-term combined action of factors such as sunlight, heat, ozone and other chemical corrosive media. Commonly used indicators such as aging resistance and thermal aging retention rate.

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