Insulation fireproofing materials

Deteriorating, damaged, or disturbed insulation, fireproofing, acoustical materials, and floor tiles... 

The experiment was done three times. In the first and third experiments, fireproof materials were attached to a steel plate which was used as a door, and the opening was filled with asbestos cloth. The ventilator was covered with an insulating plate.The specifications of the mock storage shed (HI) are as follows ... 

Equipment List Material selection diagrams Mechanical data sheets for the equipment Equipment mechanical design calculations Equipment inspection reports Insulation, fireproofing and painting specifications... 

The Control of Corrosion Under Thermal Insulation and Fireproofing Materials—a Systems Approach... 

A vessel provided with fireproofing material (insulation) rated to withstand the expected fire exposures until other fire protection measures are employed (e.g., manual firefighting)... 

Steel stmctures should be protected by approved fireproofing treatment, eg, concrete or insulating, ie, intumescent or ablative materials untreated steel should be protected by some method of cooling, eg, a water-spray system. 

Cementitious materials use a hydraulically setting cement such as Portland cement as a binder with a filler material of good insulation properties, e.g., verminculite, perlite, etc. Concrete us frequently used for fireproofing because it is easily installed, readily available, is quite durable and generally economical compared to other methods. It is heavy compared to other materials and requires more steel to support that other methods. 

Insulation used for fireproofing should be rated for 1200°F (650°C) minimum service. Insulation should consist of one of the following types of materials ... 

Note Unless specified for fireproofing use, materials sold as pipe insulation might not survive the high temperatures generated in tests such as UL1709 or ASTM E 1529. The user should ensure the fireproofing system components are fire-rated before they are specified. 

Fire resistant insulating material can provide passive protection for both vertical and horizontal structural steel members. The level or rating of fire resistance should be consistent to the expected fire duration. Where only fire resistant insulating material will be used, the material and its installation system should be specified to have a 2- to 3-hour fire rating (UL 1709). In applications using a combination of fixed water spray or sprinkler protection and fire resistant insulation, a 1- to 2-hour fire rating (UL 1709) is frequently specified for the fireproofing. 

For further guidance on where and how to use fire resistant insulating materials, refer to API Publication 2218, Fireproofing Practices in Petroleum and Petrochemical Processing Plants (API, 1999). 

Fire-resistive insulating material only 2 to 3-hour rated fireproofing 2- to 3-hour rated fireproofing Passive protection potential for unseen corrosion. 

Combination water spray with fire-resistive insulating material 1 to 1V2-hour rated fireproofing plus water spray (as above) 1 to 1V2-hour rated fireproofing plus water spray (as above) Active protection but the passive fireproofing allows some time of protection in event water system fails. 

Prefabricated fireproof wrap-type systems—Prefabricated fireproof wrap-type systems that meet the 15 minutes protection may be considered for use on instrument runs. These systems should be composed of high temperature insulating material that is wrapped around the instrument runs and is readily removable for maintenance activities. 

Chrysotile is a noncombustible fibrous solid that has been widely used as a fireproof thermal insulator, for brake linings, in construction materials, and for filters under the name of asbestos. It decomposes with loss of water at 600-800 °C, eventually forming forsterite and silica at 810-820 °C. Because it is more resistant to attack by alkalis than are the amphibole asbestoses, chrysotile has been used in chloralkali cell membranes and in admixture with Portland cement for making sewer pipes (Chapter 11). 

Chrysotile fibers are the source of commercial asbestos, although fibrous amphiboles also contribute to similar usage. Asbestos is economically valuable for its incombustibility and low conductivity of heat, thus as fireproofing and insulating material. See also Asbestos. 

It is a fibrous noncombustible mineral and is used in the manufacture of many fireproof and insulating materials. Because of the cancer-causing characteristics of its fibers, government regulations have sharply reduced its use. 

Rockwool is an example of a stmcture consisting of fibres arranged more or less randomly in space. They are glued together at their contact points. The fibres have diameters a little below 10 pm. The air in between occupies about 95% of the volume, making this material a good thermal insulator. It is also fireproof Such a stmcture is known as a random mat. The stmcture of paper tissue is similar. 

The main source of boron is a complex compound of boron called borax. About half of the world supply of borax comes from a large deposit in California s Mojave Desert. Borax is used as a cleaning agent and as fireproof insulation. Another compound of boron, boric acid, is used as a disinfectant and as an eye wash. A form of boron nitride is the second hardest known material only diamond is harder. These materials are classified as superabrasives. They are used in grinding wheels, which shape manufactured parts and tools. 

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