What insulation board is B1 grade board, can benzene board reach B1 grade, and how to make it

The benzene board can reach B1 grade, and the raw material is Longwang M material or South Korean BASF black material, which can fully reach the B1 standard.

There are many successful cases of using Hebei Xuelong's equipment to make B1 plates.

Please xuelongqiye or zhongpaosuji for inquiries.

The fire resistance grade of extruded polystyrene board is B1 grade, and the rock wool board is grade A.

I can't make it myself, so I go to the manufacturer to buy the finished product.

1. Flame retardant treated polyurethane, phenolic foam, EPS board, rubber and plastic foam (PVC NBR) insulation material.

2 No, you can't.

Wading me a reply function more.

At present, it seems that the use of B-grade external insulation materials is not allowed for civil use and co-construction.

Notice on matters related to the fire supervision and management of external thermal insulation materials for civil buildings.

Gong Xiao 2012 No. 350.

Public security fire brigades of all provinces, autonomous regions and municipalities directly under the Central Government:

In order to conscientiously learn the lessons of the "11.15" fire in the teacher's apartment on Jiaozhou Road in Shanghai and the "2.3" fire in the Wanxin Building in Shenyang, on March 14, 2011, the Ministry of Fire and Fire issued the "On Further Clarifying the People.

Notice on the relevant requirements for fire supervision and management of external thermal insulation materials used in buildings (Public Consumption 2011 65

No.), which puts forward emergency requirements for the use and management of building exterior wall insulation materials. On December 30, 2011, the "Opinions on Strengthening and Improving Fire Protection Work" (Guo Fa 2011 46) was issued

and July 17, 2012 newly promulgated "Regulations on the Supervision and Administration of Fire Protection of Construction Projects", which clearly stipulates the fire performance and supervision and management of external thermal insulation materials used in new construction, expansion and reconstruction construction projects. Pass through.

The "Notice on Further Clarifying the Relevant Requirements for Fire Supervision and Management of External Thermal Insulation Materials for Civil Buildings" will no longer be implemented.

Local public security organs and fire departments should strictly implement the requirements of the first documents and the rules and regulations of the Ministry of Public Security. Municipalities directly under the Central Government, provincial capitals, sub-provincial cities and other large cities should formulate and implement stricter fire safety standards for the fire protection design of construction projects to ensure fire safety of construction projects.

Fire Department of the Ministry of Public Security.

December 3, 2012.

B1 flame retardant material, self-extinguishing from fire;

B2 grade material, it will continue to burn when it is away from the fire;

B3 level, the fire will not only burn, but also back to help combustion, the less the more fierce!

B1 grade B2 refers to the fire rating of extruded polystyrene board, which is generally used as a thermal insulation material for exterior walls, and B1 is too expensive and should not be used by developers.

Extruded plastic board English abbreviation XPS, made of polystyrene material by foaming extrusion, the finished product has a honeycomb cell structure, the closed cell rate is high in thermal insulation building materials, light weight, a cubic is only about 30 kg, high compressive level, can reach more than 250kpa, a four-seater car crushed without any problems, will not deform, will not break, has a certain toughness and strength.

The differences between B1 and B2 fire resistance grades of extruded insulation board are as follows:

B1 level is the suffocation level from the fire, that is, it will be automatically extinguished after leaving the source, or extinguished within 10 seconds.

B2 is a slow-burning grade, that is, the fire will not grow larger after ignition, and the dripping will not ignite the filter paper;

Judging by the naked eye, the B1 level extruded plastic board is self-extinguishing in three seconds from the fire, and the self-extinguishing one within three seconds belongs to the B1 level extruded plastic board, and the B2 level extruded plastic board burns slowly, which is a relatively vague concept, and the effect can only be seen when compared with the ordinary board, and the obvious slow combustion speed belongs to the B2 level extruded plastic board.

Therefore, this visual definition must also be compared to see the difference.

Extruded plastic insulation board, also known as extruded polystyrene insulation board, is a kind of foamed rigid plastic board formed by heating and extrusion with polystyrene resin as the raw material and adding other polymers.

Many closed bubble structures are formed in the board, which have the characteristics of strong pressure-bearing, good waterproof performance, chemical corrosion resistance and strong anti-aging ability, and are widely used in building insulation and waterproof and moisture-proof in humid environments. The development time of extruded plastic insulation board in China is only about 10 years.

However, in recent years, through the vigorous promotion of various production enterprises, it has gradually been recognized by the majority of people in the construction industry, and has a large coverage in major economic regions in China. In the foreseeable future, the market in this area will continue to grow, and there is still room for improvement in domestic production capacity.

China's leading energy policy is"Equal emphasis on development and savings"and put saving in the first place. Energy conservation remains a strategic point for China's energy industry.

In 1986, the Ministry of Construction promulgated the "Design Standards for Energy Conservation of Civil Buildings", and later further improved the indicators of the standards. Before the implementation of building energy efficiency standards, China has built nearly 8 billion square meters of residential area over the years.

Since 2000, the energy-saving renovation of existing buildings with poor thermal environment or high energy consumption in the heating area has begun.

In 2005, key towns began to carry out building thermal environment and energy-saving renovation in patches. XPS, on the other hand, is attractive in energy-efficient housing due to its excellent properties such as low thermal conductivity, light weight, high strength, waterproof, impermeability, and ease of construction.

Depending on your focus and preferences, there are pros and cons to both.

The grade is inorganic materials: dry powder, composite silicate coil, coating, plate, etc., vitrified microbeads, mortar. Grade B includes polyurethane, benzene board, and extruded plastic board.

It mainly depends on the amount of flame retardant added to distinguish whether it is B1B2 or ordinary materials. Thermal insulation materials, industrial equipment and pipelines, the use of thermal insulation measures and material aerogel were first applied to the spacesuit thermal insulation lining developed by NASA. It has the characteristics of low thermal conductivity, low density, high flexibility, fire and waterproof.

Its thermal conductivity at room temperature and absolute waterproof, the thermal insulation performance is 3 8 times that of traditional materials. The thermal insulation lining has the characteristics of low thermal conductivity, low density, high flexibility, fire and waterproof. Light weight, generally 10 96kg m3, 20kg m3 below is felt, 24 48kg m3 is a medium hard board, 48 96kg m3 is a hard board, of which 48kg m can be used as a ceiling, the softening point is about 500 °C, the insulation is 300 °C, the United States has a large amount, k =.

Organic materials: 1. Organic insulation materials mainly include polyurethane foam, polystyrene board, phenolic foam, etc. 2. Organic thermal insulation materials have light weight, good machinability, high compactness, and good thermal insulation effect, but the disadvantages are:

It is not resistant to aging, the deformation coefficient is large, the stability is poor, the safety is poor, it is flammable, the ecological and environmental protection is very poor, the construction is difficult, the project cost is high, its resources are limited, and it is difficult to recycle. 3. The traditional polystyrene board and inorganic insulation board have excellent thermal insulation effect, which is widely used in China's wall insulation material market, but does not have safe fire performance, especially the toxic gas produced during combustion, in fact, the use of such materials has long been limited to a very small application field in developed countries. 4. Economy:

The comprehensive cost is low.

Rubber and plastic insulation material: B1 grade rubber and plastic insulation material is in line with the national fire protection standard flame retardant type; B2 grade also meets the national standard, belongs to the flame retardant type, and is self-relieving within 3 seconds, and the B2 grade product is an economical product, which is lower than the BI grade product.

Whether it is a rubber and plastic insulation board or a rubber and plastic insulation pipe, it can be distinguished from the appearance, after opening the product, whether it is a pipe or a plate are printed with B1 grade product words, the surface of the product looks a little matte similar to the quality of the international brand Fleur products, when the product is installed, the appearance is not only beautiful and very neat, is one of the best choice products for developers and construction companies.

The B2 grade looks smooth on the surface and is very soft to the touch.

The B1 outer packaging is printed with the manufacturer's information, and the product will also be printed with the manufacturer's logo, and the B2 grade is mostly green packaging.

First: product appearance.

High-quality B1 grade rubber and plastic products, each box or bag of packaging has a certificate label, the label has a serial code, according to the serial code can be marked to the surface of the material will also be printed with the "Class B1" logo.

Second: the parameters and testing standards are different.

B1 grade rubber and plastic products are up to international standards, such as nine longitudinal insulation materials, which are closed foam insulation materials with high flexibility, meet the international standards of BS476 and GB8624, the use temperature is between -50-105, the flame retardant index reaches B1 grade, the oxygen index is 40, and the thermal conductivity is high

w, vacuum water absorption rate 5%, moisture resistance factor 10000, smoke density grade 47, density 40-80kg m3. But the market is allowed.

It is difficult to achieve this parameter value for many fake B1 rubber and plastic brands, let alone B2 rubber and plastic insulation materials.

Third: product and quality.

B1 grade rubber and plastic insulation materials international brands are generally about 2500 per cubic meter, and the quality assurance period is more than 20 years. Domestic B1 well-known brands are about 1200 per cubic meter, and B2 ** is less than 1,000 yuan per cubic meter.

Fourth: brand influence differentiation.

Shandong Tiandi building materials.

Can't be divided. It must be distinguished by the identification. If there is no marking, it can only be distinguished by a flame retardant test.

B1 can not be ignited with a lighter, at most it shrinks, and B2 can ignite, but the ignition is extinguished when the ignition source leaves.

Look at the logo. Because B1 and B2 refer to the flammable grade of the insulation board.

It is difficult to distinguish the appearance from the general testing method, so it is recommended to go to a professional testing institution for identification.

Polystyrene insulation board is a new type of rigid environmental protection and energy-saving foam plastic board with polystyrene resin supplemented by polymer in heating and mixing, injected with catalyst, and then extruded continuous closed-cell foaming, which is an independent closed bubble structure inside, which is a kind of insulation material with excellent properties such as high compressive resistance, low water absorption, moisture-proof, air-impermeable, light weight, corrosion resistance, anti-aging, low thermal conductivity, etc., and is a commonly used and high-quality thermal insulation and thermal insulation material in the construction industry.

First of all, I don't know where you are, why are you still using polystyrene boards? B1 can not be ignited with a lighter, at most atrophied, B2

It can be ignited, but the fire is extinguished when it leaves.

First, conduct testing, and second, speak with a conscience

The B1 and B2 grades of polystyrene insulation board are divided according to the fire protection requirements, and the general appearance cannot be distinguished, and they must be tested to distinguish them.

The main grades of polystyrene board are mainly divided according to GB8624, which are mainly divided into grade A, B1, B2, B3, etc. At present, it is generally B2 grade on the market, and B1 grade can be achieved by adding flame retardants and other improved production processes, but it is almost impossible to achieve grade A. It is necessary to use M606 oxygen index tester, Z801 building materials smoke density tester, Z803 building materials flammability tester, etc. to determine the combustion level.

The details are as follows: Level B1:

1. The smoke density test is tested with the Z801 building materials smoke density tester, and the standard requires the smoke density grade to be 75.

2. The oxygen index test is tested by the M606B digital oxygen index tester, and the standard requires the oxygen index (OI) 28.

3. The flammability test is tested by the Z803 building materials flammability test device, and the standard requires a combustion length of 150mm within 60s and no combustion droplets to burn the filter paper.

4. The single combustion test is tested by the Z806 single combustion test device, and the standard requires the combustion growth rate index (Figra) to be 120W s, the flame transverse spread length (LFS) to the edge of the sample, and the total heat release (THR600S) at 600s is 15MJ.

B2 level: 1. Oxygen index test, tested by M606B digital oxygen index tester, the standard requires oxygen index (OI) 26.

2. The flammability test is tested by the Z803 building materials flammability test device, and the standard requires a combustion length of 150mm within 60s and no combustion droplets to burn the filter paper.

3. The monomer combustion test is tested by the Z806 monomer combustion test device, and the standard requires the combustion growth rate index (FIGRA) to be 750W s.

The denser is B1The less dense is B2

B1 and B2 are the flammable grades of insulation boards.

If you need technical indicators, you can check the technical specifications of B1 grade extruded board, which is very detailed.

The following are the technical indicators I use in the Shi group, I hope it will be useful to you:

1. Performance indicators of extruded plastic board (XPS).

Pilot Project Indicators: Project Indicators.

Apparent density, m3 25 Water vapor moisture permeability coefficient, ng compressive strength, kpa 150 water absorption, %(v v) Combustion performance B1 Thermal conductivity, W

2. Performance index of extruded board bonding mortar.

Test item Performance indicators.

Tensile bonding strength, MPA (with cement mortar) Original strength Water resistant

Tensile bond strength, mpa

with the original strength of the expanded extruded board, the interface is destroyed on the extruded board.

Water-resistant, breaking the interface on the extruded board.

Operable time, h

3. Performance indicators of extruded plastic board plastering mortar.

Test item Performance indicators.

Tensile bond strength, mpa

with extruded plastic board) original strength 010. Destroy the interface on the extruded board.

Water resistant 010. Destroy the interface on the extruded board.

Freeze-thaw resistant 010. Destroy the interface on the extruded board.

Flexibility (compressive strength, flexural strength), %300

Operable time, h

4. Technical indicators of hot-dip galvanized steel wire mesh.

Project unit indicator.

Mesh size mm

Solder joint tensile strength n 65

Galvanized coating quality g 122

5. Performance indicators of anchor bolts.

Test item Performance indicators.

Standard value of bearing capacity of individual plastic anchors, kn

Effective anchorage depth of plastic anchors, mm 40