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Magnesium Oxide Fireproof Board
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Description
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Magnesium Oxide Board
Magnesium oxide board has many advantages, such as waterproof, fireproof, soundproof, heat preservation, nonpoisonous, tasteless, never becomes moldy and rotten etc. It can be used in wide fields by sawing or nailing. It is easy to install and can be used for a long time.
Main usage:
Magnesium oxide board have been used primarily as fireproof materials for walls and ceilings in office buildings, apartment complexes, residential constructions, hotels, theatres, restaurants, railway stations, airports, scientific research institutions, schools, hospitals, and stadiums. Some patterned products have been used as decorative boards.
It also can be used as an interlayer for building, movable partitions, sound-absorbing structures, sound insulation structures, heat insulation and preservation structures, sign boards, fireproof partition walls, low fencing partitions, fireproof pipeline, fireproof doors, cornice baffle boards, public restroom dividers, baseboards, truck cabinets and billboards etc.
Mgo board test report
|
Specification |
10mmx1220x2440 |
Produce date |
2019.05.18 |
Test date |
2019.06.05 |
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|
Test item |
Technical requirement |
Test results |
Results |
||||
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Density (t/m3) |
|
1.12 |
|
||||
|
Bending strength(Mpa) |
≥10 |
14.55 |
Qualified |
||||
|
Impact strength (KJ/㎡) |
≥2.0 |
2.75 |
Qualified |
||||
|
Moisture resistance |
No moisture |
No moisture |
Qualified |
||||
|
Soften coefficient |
≥0.8 |
0.93 |
Qualified |
||||
|
Water content (%) |
≤8 |
6.5 |
Qualified |
||||
|
Contraction rate when heated (%) |
≤0.3 |
0.21 |
Qualified |
||||
|
Expansion when put into water (%) |
≤0.6 |
0.33 |
Qualified |
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cl- content (%) |
≤10 |
1.8 |
Qualified |
||||
|
Water absorption (%) |
≤28 |
20.0 |
Qualified |
||||
|
Put out of nails(N/m) |
e＜6 |
6＜e＜10 |
e >10
|
57N/m |
Qualified |
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|
≥25 |
≥20 |
≥15 |
|||||
Test standard：JC688—2006《Mgo board standard》
Previous
None
Tips: Is the interface agent the same as the interface mortar?
For example: (1) Porous and strong water-absorbing materials (aerated concrete, gypsum board, wood, etc.); (2) Smooth and low-water-absorbing materials (cast concrete, etc.)
[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
Shandong Weihai Quality Supervision Station requires that from October 1, 2016, the stairwells and corridors of new residential construction projects need to be scraped on the walls of public parts on the ground
【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.
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Time of issue:2020-12-29 13:52:21
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