1. Purity(%) 85 Min
2. SO3 Content(%) 40 Min
3. Total P2O5(%) 0.5 Max
4. Water Soluble P2O5(%) 0.1 Max
5. Moisture(%) 12 Max
6. Loss on Ignition (1000 Degree Celcius) NDA
7. Silica as SiO2 2.5 Max
8. Bulk Density (gm/cc) 1.12
9. pH (10% suspension) 5.50
10. Combined Moisture (%) 18 Min
11. Calcium Oxide(%) 28 Min
The development of all gypsum boards begins with a mineral rock, which is gray to white in color and is called gypsum. The basic mineral is composed of calcium sulfate chemically combined with water of crystallization. The combined water makes up approximately 20% of weight of gypsum rock. This is the feature that gives gypsum its fire resistant quality and makes it so adaptable for construction purposes.
After gypsum rock is mined or quarried, it is crushed, dried, and ground to flour fineness, then calcined to drive off the greater part of the chemically combined water as steam. This calcined gypsum, commonly called plaster of paris, is then mixed with water and other ingredients and sandwiched between two sheets of specially manufactured paper to form various types of gypsum board or specially formulated and bagged for shipment as gypsum plaster or cement.
Gypsum boards are formed in a highly automated continuous process. After the gypsum board has set, the boards are cut to length, dried, prefinished if required, and packed for shipment. All processing is in strict accordance with specifications and complies with more than 256 procedures and work instructions to meet quality standards and customer's satisfaction.
ADVANTAGE:
Life Safety Protection
Fire resistance is inherent in the gypsum construction selected. The systems provide permanent fire resistance not subject to loss of water pressure or other malfunctions and problems which may occur in sprinkler systems.
Fire Resistance:
Gypsum will not support combustion. When attacked by fire, crystallized water in gypsum is released and turns to steam to help retard the spread of flame and heat and protect adjacent constructions.
Light Weight:
Gypsum board constructions weigh appreciably less than masonry assemblies of the same thickness. They reduce material - handling expense and may permit the use of lighter structural members, floors, and footings.
Sound Control:
Gypsum board construction offers excellent resistance to airborne and impact sound transmission without excessive bulk or weight. Resilient attachment of gypsum panels or bases further improves sound ratings, makes partitions ideally suited for party walls.
Versatility:
Gypsum board construction is suitable as divider, corridor and party walls; pipe chase and shaft enclosures; radiant-heat ceilings; exterior walls and wall furring; membrane fire resistant constructions. Adaptable for use in every type of new construction - commercial, institutional, industrial and residential - and in remodeling. It produces attractive joint - free walls and ceilings; easily adapt to most contours, modules and dimensions.
SPECIFICATIONS
It is ivory colour that is nice whether being painted or used as the end colour.
Taishan gypsum plasterboard is available to be manufactured according usersf+ requirement if within the following dimensions: depth8.0-25.4mm; width 900-1220mm; length 1500-3660mm.
Xianhali at 163.Com
Taishan decorative gypsum board pvc laminated, pvc foil backing gypsum board·¼is a ceiling of new type which is developed and produced by our company. It is made of taishan gypsum board of high grade and its surface is readily-cleaned. It is widely used in hotels, hospitals, schools, houses and many other places.
It has such advantages as followed
Fireproof and waterproof, dustproof and moth-resistant; environment-friendly and healthy; plentiful surfaces and fashionable outsides
Xianhali at 163.Com
Regular gypsum board , fire resistant gypsum board , water resiatant gypsum board
There are also many other specifications and performances of products to offer on your request.
Gypsum
Shandong yifang plaster co., ltd. Is a self-support im&ex corporation gathering exploitation and machiningf=transportation and sale as well as service of plaster and coal. It has six enterprises·+such as taierzhuang city garden plaster first mine and second mine, wu huan paperbacked plasterboard factoryf=luyuan land plaster first factory and second factory·+industrial garden plaster products factoryf=fu xingxiang mine and so on. Main products are high-quality snowflake plaster used specially for new building materials·+paperbacked plasterboard of various specifications and all kinds of land plaster and coal for new materials and so forth. It has formed a scale of 800, 000 tons of plasters paperbacked plasterboard·+ 500, 000 tons of land plaster as well as 600, 000 tons of coal yearly.
Product Detailed Description:
"
Chemical analysis
Item Percentage
Free water at 45 C surface moisture 0.31 - 0.38
Minimum purity 91.7 - 93.8
SiO 0.34 - 0.95
MgO 0.56 - 0.67
Al O 0.29
CaO 31.5 - 32.7
Fe O 0.07
Na O 0.11
K O 0.08
So 46.9
Minimum Order Qty :
50 tons
Units :
Tons
Packaging Details :
"Jumbo bags
small bags "
Capacity :
"Jumbo bags: 1.25-1.5 Ton
small bags 25 or 50 kg bags"
We provide agricultural gypsum, which plays a vital role in soil conditioning and improving crop yields. Gypsum helps to loosen compacted soils, enhance water infiltration, and provide essential nutrients to plants.
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO42H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard.
A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire and the Nottingham alabasters of Medieval England. Mohs scale of mineral hardness, based on scratch hardness comparison, defines hardness value 2 as gypsum. It forms as an evaporite mineral and as a hydration product of anhydrite.
Gypsum plays a very important role in controlling the rate of hardening of the cement. During the cement manufacturing Process , upon the Cooling of clinker, a small amount of gypsum is introduced during the final grinding Process . Gypsum is added to control the âsetting of cement.
Our product is used next to the Agriculture but also has the best specifications to be used as a raw material in Cement and Gypsum Board industry, we have any volume and we guarantee the best level of performance.
