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Fire-proof board of Air Duct, Flue , Tunnel
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Fire-proof board of Air Duct, Flue , Tunnel

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Description
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Flue and tunnel fireproof board

Composition:

The main ingredients are silicon powder, active high purity magnesium oxide (MgO), high quality magnesium chloride (MgCl2), alkali-resistant fiberglass mesh, flexible plant fibers (sawdust), non-flammable light perlite, fly ash, chemically stabilized lithopone powder, high performance modifier etc. 
The boards have very high-strength and better fireproof characteristic, which can be used for flue boards, tunnel boards or floor boards, the service life can be more than 70 years.

 

Main Characteristics:

1. Better fireproof performance: 
At present, the common problem is that the fireproof limit time of finished flue pipes has not been checked by the legal national fire inspection institute, and the fireproof performance and wall thickness of some cement precast flue pipes do not meet the requirements. The fireproof limit performance of the combined Mgo flue pipes fully meets the fireproof requirements of the national compulsory provisions.
2. Low cost: 
Compared with the traditional brick flue, the combined Mgo high-strength, fireproof flue can save about 40% of the project cost.
3. Light weight and high strength: 
Compared with precast cement flue and traditional brick flue, combined Mgo high strength, fireproof flue has better light weight and high strength characteristic, which can greatly reduce the bearing load of buildings.
4. Flexible design: 
The combined Mgo high strength, fireproof flue can adjust the size of the flue at any time according to the size of the reserved hole.
5. Unique design:
 Flue gas check valves and fire isolation doors are installed on the opening of the combined Mgo high-strength, fireproof flue, which can effectively prevent cross-smelling and crossfire.
6. Simple construction:
 Increased indoor space, good airtightness, no smoke return, no odor return, can greatly improve the indoor environment.

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Tips: Is the interface agent the same as the interface mortar?
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[Construction] Flat coating construction process of elastic coating for exterior wall
Let the new cement on the wall mature for at least one month to reduce the alkalinity of the wall appropriately and make the wall dry. The moisture content of the wall must be less than 10%; if the ambient temperature is low, the wall is ready to dry The time has been extended accordingly.
The quality supervision department has taken action, and the public wall requires the use of water-resistant putty
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【Construction】Scrape putty in this way so that the wall will not be hollow and cracked
The putty layer is hollow and blistered, mainly due to the presence of gas between the base layer and the putty layer. There is a dense layer between the base layer and the putty layer.

Intersection of Sanyi Street and Renhe Road, Eastern Development Zone, Pingyuan County, Dezhou City, Shandong Province

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Time of issue:2020-12-29 13:52:21

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