Calcium Sulfoaluminate Cement Calcium Sulfo-aluminate Cement Csa Binder

Product DescriptionCSA cement, also named calcium sulpho aluminate cement. CSA cement has the advantages of rapid hardening, high-strength, freeze resistance, impermeability, adjustable setting time, good fluidity, corrosion resistance, low ph value, low dry shrinkage and so on.Main Chemical Analysis(%) Chemical positionSiO2Al2O3Fe2O3CaOMgOTiO2SO3Contents %4.5-6.536-391.0-2.039-411.5-2.01.0-1.59-11CSA Cement Characteristics:
(1)Early high strength
Under standard condition, it's plastic mortar compressive strength of 12 hours can reach 30-40MPa, of 3 days can reach the grade strength. The concrete that prepared byCSAcement, when the water cement ratio is 0.5-0.6, the compressive strength of 6 hours under normal temperature can reach 5-10MPa while of 12 hours can reach above 20Mpa. Its early strength promotion rate over exceed rapid setting Portland cement. It's hydrate exothermic reaction develops with strength, centralize on early period. Under standard temperature, hydrate heat of 1 day take 70%-80% of total heat release. Its heat release volume is not high. One day heat release volume is around 55Cal/g, lower than Portland cement. one days heat release volume is around 50Cal/g, higher than Portland cement's heat release rate.

(2). Rapid setting time
Under standard consistence water consumption, the initial setting is not early than 25 minutes, final setting is not later than 3 hours.CSA cement is obvious to see the setting time is quick. When prepare high early strength concrete, due to the water cement ratio is much bigger than standard consistence, initial setting of high early strength concrete is above 2-3 hours even at normal temperature. It can completely meet construction requirement.
(3). Tiny expansion and low shrinkage
It produces crystal ettringite at early hydrate reaction. Crystal ettringite causes concrete have volume expansion. When preserving in water, Early strength cement present expansion property without restriction.
(4). Low alkali
CSA cement(Calcium Sulfoaluminate Cement)hydrate reaction medium's alkali rate is low, the PH value is around 10.5~11 while Portland cement hydrate reaction medium's alkali PH value is around 13.
(5). Steel bar corrosion
After 7 days shaping, open the specimen of it , you will find corrosion on the surface of steel bar. But the corrosion does not develop since the following 1 ~10 months. And the weight loss rate is stable. From the recent 10 years research result for steel bar corrosion, steel bar corrosion degree is not growing with time.
(6). Durability
a. Freeze-thaw resistance
The testing result for freeze-thaw resistance ofCSA cement(Calcium Sulfoaluminate Cement) completely proves it can meet the construction projects requirement of freeze-thaw 50 times. The testing method is rapid freezing. Concrete, water and cement ratio is 0.40, freeze-thaw circulation pass 200 times. Relative modulus of elasticity is 82%.
b. Anti-permeability
Under pressure 30kg/cm2, it’s concrete specimen did not permeate.
c. resistance of heat
It shouldn't be used under temperature above 100 ℃ and structure that have acid resistance requirement.
d. Long period strength stability.
e. Corrosion resistance
It has corrosion resistance to high concentration sulfate, magnesium salts, sodium chloride, bittern. Its corrosion resistance coefficient to those salts are all above 1.
CSA Cement Application:
CSA cement can be used for preparing anti-permeability, anti-freezing and sulfate resistance concrete. It is also used in construction in winter, injecting slurry, consolidation, rush to repair, leak stopping, complex geology small caliber running cementing, big prefabricated concrete structure, cast-in-place frame structure projects. It is specially used for producing glass fiber cement composite products, cement pipe, cement pole and man-made marble products. In engineering can cause multiples increase to output and economic value. It can also make the deadline for engineering project moved up largely. Super-high-strength It is fit to making concrete with performances of early strength, high strengt, impermeability, sulfate resistance. It is also used in construction at negative temperatures, segmental contactor, block, making cement products, large building engineering and it is used in mining support well as laneway support.
Transportation and storage:
Keep it away from damp, impurity and other cement.*Guaranteed quality: Our production process conforms strictly to the requirements of ISO quality management system. Quality inspection is carried out in every links of our production. SGS etc third party inspection is available.
*Sound after sales service: We provide sound after sales service. We provide 24 hours' consultation service. We are ready to answer your consultation at any time.
*Free sample available.Company Information Company History 2010 Year, Company was founded, orignal name is: Qingdao Sunny Energy-Saving Materials Co., Ltd.2013 Year, Became the Alibaba Gold Supplier member2017 Year, Company name was changed to: Qingdao Sunrise Energy-Saving Materials Co., Ltd.2017 Year , Became the Alibaba Gold Supplier member under the new company name.FAQ about usProfessional manufacturerGuarantee qualityReasonable priceShortest lead timeMOQ1000kgs/1packageLess quantity is acceptable but price is higherDelivery MethodFor great quantity: By SeaFor few quantity: By Express courier or By Air shippingPricePrice will be quoted according to inquiry quantityDelivery TimeIf stocks available: within 7 days according to Vessel scheduleIf stocks not available: 2~3 weeks lead timePackageBag / Jumbo Bag / Pallet / Wooden Case / Plywood CaseSpecial package is availableWarrantyFree service in one yearSpecial requirementsPlease feel free to contact us by Email/WhatsApp/Skype/QQ/Alibaba trademanger Etc. for negotiation.