Specialty cement technology-Rapid set CSA cement, High performance of concrete and mortars


CSA cement, full name is Calcium Sulfoaluminate cement, was invented and developed in China since 1970's. It is 100% cement, get ready to use. As the third generation of cements, it is widely used on construction for decades in China.

The cement has been used on concrete for bridges, airports, concrete road repair, winter construction and many other applications where early strength and time needed.As well as high strength concrete, high performance of mortars, like Self levelling compounds,tile adhesives,Non shrinkage grouts,etc.

The product obtained by grinding cement clinker obtained by roasting suitable raw material, consisting essentially of anhydrous calcium sulphoaluminate and dicalcium silicate. Suitable gypsum and 0-10% limestone shall be blended with clinker during manufacture of rapid-hardening sulphoaluminate cement. The rapid-hardening cement product is hydraulicity binding material. It has high early strength. The code no is R-SAC.

Specific surface area(m2/kg): ≥350
Setting time(min): 
Initial setting time: ≥25    Final setting time: ≤180
 (Remark: the setting time can be adjusted according to demand.)

The initial set of the CSA cement begins after approximately twenty minutes and its final set is then arrived after ten more minutes. With the use of retarders, the processing time can be considerably extended. Even in low temperature environments CSA cement is workable, because of its concentrative hydration.

When CSA cement is applied to concrete or mortars it vastly increases its strengths and its strength development. Compared to Portland cement, CSA cement could reach hours strength, 1 day strength could reach 60%-70% of the grade strengths, and within 3 days to achieve strength of portland cement in 28 days. 

Properties of CSA cements:

1. High early strength and final strength

Its compressive strength can reach 35-50Mpa within 1 day, 50-70Mpa after 3 days, and it also can grows continually with the increasing of curing age.

2. Fast setting time, Rapid hardening

3. High impermeability: Because of its dense structure, the impermeability of the concrete is 2-3 times than that of OPC in same grade.

4. Anti-carbonation property: It has good anti-carbonation property, and low dry-shrinkage.

5. Corrosion-resistance: Rapid-hardening cement has good corrosion-resistance quality, especially much better in seawater corrosion resistance than that of high anti-sulphate Portland cement, with more than 1 corrosion-resistance coefficient.

6. Low alkalinity, low PH value

7. Little expansion, lower shrinkage, etc.




Applications:

1.Construction in winter.

2.Urgent repairs and rapid construction.

3.Spraying anchor and supporting engineering.

4.Water conservancy facilities and offshore projects.

5.Bridge and road construction.

6.Cement products and prefabricated components.

7.Industrial and civil engineering

8. Mining industry

9. GFRC/GRC industry, etc.





You are welcome to request more product informations, technical exchanges, etc.



Contact me by E-mail: csacement@gmail.com or cell phone: +86 15810326158 (whatsapp) and skype: yangjian1886


Comments

Post a Comment

Popular posts from this blog

CSA cement ( CSA binder )

Introduction General characteristics CSA Cement, also named Calcium Sulpho Aluminate Cement with grade: 42.5, 52.5, 62.5, 72.5, 82.5, 92.5, is a hydraulic binder based on calcium sulpho aluminate, rather than calcium aluminates which are the basis of Calcium Aluminates Cement or calcium silicates which are the basis of Portland Cement. It can be used on its own (with a Lithium accelerator), or with an Anhydrite, Portland cement mix, Metakaolin or a combination of all. CSA Cement has the benefit of being readily adaptable to suit many different applications where both rapid set and / or high early strength gain are required. It yields controlled set, enhanced early strengths, shrinkage compensation or expansion and sulphate resistance. Uses include any cement-based product in need of these properties. CSA Cement products exhibit a range of properties to suit a wide spectrum of cement-based applications, like fast setting cements, self-leveling or self-smoothing compounds, sel...
Read more

CSA cement ( Rapid set cement )

CSA cement is one type of cement has the advantages of super high early and final strength, low alkaline, fast setting time, rapid hardening, frost & corrosion resistance, etc. Due to its wonderful performance, it can be used in many applications like mining industry, bridge decks, airport runways, patching concrete roadways, sidewalks, pavements, etc. where rapid strength developments are necessary. CSA cements offer tremendous advantages over Portland cement in terms of strength, setting time, speed and greeness .It main features are high initial and final strength, concentrative hydrating heat release, fast setting time, good fluidity, high frost and corrosion resistance, impermeability, low carbon, etc. It can be used in the following areas: 1. High strength cement & concrete 2. Dry mortars, such as tile adhesive, high strength grouting materials, self-leveling materials, rapid setting mortars, etc. 3. Concrete repair materials, Pavement repairs and other repair...
Read more