Polyethylene closed-cell foam board is a building material with low density, high recovery rate, independent bubble structure, good anti-penetration performance, and is often used as a joint board at the joint.

Features

Chemically cross-linked polyethylene foam has its unique advantages, strong recovery rate, no water absorption, impact resistance, weather resistance, chemical resistance, and aging resistance that other materials do not have. The application field of PE foam is becoming more and more extensive.

Water absorption

The surface water absorption rate is low and the anti-penetration performance is good.

Acidity

Resistant to corrosion by organic solvents such as acid, alkali, salt, and oil, and excellent aging resistance.

Stability

Does not flow at high temperatures and does not crack at low temperatures.

Application scope

Basic performance

Joint plates for expansion joints of dirt roads;

Waterstop plates for road and bridge joints;

Expansion joint plates for embankments, dam protection, force dissipation sills, slope protection, and retaining walls of hydraulic engineering projects;

Waterstop joint plates at the bottom of hydropower, thermal power, engineering, and water towers;

Filling plates for settlement joints and frame structures of buildings;

Waterstop filling plates for water tanks in domestic water plants and sewage treatment plants;

Joint plates for airport runways;

Joint plates for ports, docks, and concrete;

Water-passing joint plates for water tunnels and tunnel concrete;

Concrete waterstop joint plates for subways and underground passages.

Material Specifications

Original plate specifications

are (1600--1950)¡Á(800--950)¡Á50mm,

Special specifications

According to user needs, 5-50mm different thickness plates, strips, and slices can be arbitrarily processed and produced with cutting errors within the range of ¡À0.2 to ¡À1.

Physical and Mechanical Properties

Apparent density

0.05-0.14g/cm3; Tensile strength ¡Ý0.15Mpa Compressive strength ¡Ý0.15Mpa Tear strength ¡Ý4.0N/mm

Heating deformation ¡Ü2.0% Water absorption ¡Ý0.005g/©M3 Elongation ¡Ý100% Hardness (C-type durometer) 40--60 Shore A. Degree

Compression permanent deformation ¡Ü3.0%

The closed-cell foam plastic board adopts high-pressure polyethylene low-foaming closed-cell foam plastic board, and the material performance does not change when interacting with the sealant.

Paving application

Paved on the inner side of the concrete first pouring block formwork, the joints should be tightly connected but not overlapped. It is advisable to cut it according to the cross-section of the structural joint at the manufacturer, number it and splice it on site, and use the tenon-type embedding processed by the manufacturer to ensure the tight connection of the joints.

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