csa binder 92.5,82.5,72.5

出自: Tangshan Polar bear building materials Co.,Ltd  2010/08/30
關鍵字 CSA cement, calcium sulfoaluminate cement, cement plant/cement manufaturer

 HCSA binder is a hydraulic binder based on calcium sulphoaluminate, rather than calciumaluminates which are the basis of calcium aluminate cement or calcium silicates which are the basis of portland cement. The difference gives HCSA binder properties particularly suited to formulators of products such as self-leveling or self-smoothing compounds, rapid hardening screeds, tile adhesives, non-shrink grouts, rapid setting and special mortars.   HCSA binder is used in formulated products either as a hydraulic binder by itself or with the addition of calcium sulphates, or in combination with PORTLAND cement. The setting time is quicker than that of PORTLAND cement, and it also has a rapid strength development. HCSA binder does not release free lime during hydration thus eliminates the major cause of efflorescence.   HCSA binder is manufactured under a strict quality assurance systems GB/T 19001-2000 (i.e. ISO9001:2000) and GB/T 24001-1996 (i.e. ISO 14001:1996)) which accommodates the technical requirements of building chemistry formulators.   The properties of HCSA binder conform to the standards of the manufacturer and to theChinese relevant standards.  

HCSA binder cement Chemical Analysis  

The chemical analysis of HCSA binder has been determined according to the following: GB/T 176-1996 Methods of chemical analysis for cement  
Main constituents (%)   SiO2 Al2O3 Fe2O3 CaO MgO TiO2
Usual range 4.5~6.5 36~39 1.0~2.0 39~41 1.5~2.0 1.0~1.5
Specification limit <7.0 >35 <2.5 39~42 <2.5 <1.8
Fineness   Specific Surface Area: according to standard GB/T 8074-1987
Usual range:      360~430 m2/kg Specification limit: >360 m2/kg   Hydraulic Properties   The characteristics of HCSA BINDER have been tested in accordance with the Chinese standards. l  Setting time determined at 20 using Vicat needle, according to GB/T 1346-2001 l  Mechanical strength at 20 , 95% relative humidity.   Mortar according to JC933-2003   Initial Set Final Set Specification limit >25 minutes <180 minutes   Age 1d 3d 7d 28d Flexural >5.0 >8.0 >9.0 >10.0 Compressive >30.0 >60.0 >70.0 >75.0 Additional information   This information is given for reference only.   Mineral composition   C=CaO A=Al2O3 S=SiO2 F=Fe2O3 S= SO3 - Pricipal mineral phase: calcium sulphoaluminate C4 A3 S - Secondary phases: C2S, C4AF   Reactivity with Portland cement   HCSA binder may be used in combination with other mineral products, for example portland cement, calcium sulphates and fillers, or with organics such as polymers in latex form or in redispersible form.  
Depending on the type of mixes and technology employed, HCSA binder can be used to obtain and control various properties.   The behaviour of portland cement is vary variable. In general, acceleration of set increases progressly with the addition of HCSA binder. The amount of HCSA binder needed to obtain a specific setting time varies considerably depending on the origin of the portland cement and performance can be modified with the use of additives.   The strength development of HCSA binder/portland cement and/or Calcium Sulphates depend on the nature of the portland cement and/or Calcium Sulphates used. In general these mixes will develop mechanical strength at a very early stage (several hours). With some type of portland cements and in formulated products containing additives which control the setting and hydration, the long term properties is similar to those of the original portland cement, however it is necessary to check the behaviour of each PORTLAND cement used.  
The characteristics of portland cement to be considered are: l  C3A content l  Mineral admixture type and content l  Type of Calcium Sulphate used   Additives will also influence the properties of these mixes: l  Setting time l  Rheology l  Mechanical performance   These properties are applied to obtain a wide range of products: l  Fast setting cements l  Rapid hardening mortars l  Tile adhesives l  Self-leveling compounds l  Non-shrink grouts l  Water stopping mortars l  etc.   With a careful selection of the constituents (OPC, calcium sulphates, additives), it is possible to create mixes with a range of different hydraulic properties: l  Adjustable setting time l  Rheology adapted to the application l  High early strength l  High long term strength l  Shrinkage compensation   Use of Additives   HCSA binder may be used in combination with chemical additives such as: l  polymers, either in latex form or redispersible powder form l  defoamers l  retarders l  accelerators l  plasticizers/superplasticizers l  rheology modifiers l  fibers   Package and Store   HCSA binder is normally supplied in one-tonne bag which include a moister resistant barrier. However, in common with all hydraulic binders HCSA binder must be kept from moisture, and can retain its properties for up to six months when properly stored.   Technical supporting:   Tangshan Polar Bear Building Materials Co.,ltd can provide sulphoaluminate cement, admixture, high quality building materials and relevant products technical and application consultation.

關鍵字 calcium sulfoaluminate cement, cement plant/cement manufaturer, CSA binder/adhesive, CSA cement, Denka cement(CSA cement), Fast setting CSA cement, high early strength CSA cement, hydraulic binder, low alkalinity sulfoaluminate cement, Quick hardening CSA cement, quick setting hydraulic cement, sulfoaluminate cement clinker, ultra high strength CSA cement, waterproofing materials,

聯絡Tangshan Polar bear building materials Co.,Ltd