Rapid Setting Cement is a kind of blended hydraulic cement used in concrete repair, which is requiring the highest durability and fastest strength gain. Its full name is calcium sulfo-aluminate cement and its main minerals are anhydrous C4A3S, C2S. Its main character is rapid setting, so we also name it as Rapid setting cement. Besides the rapid setting performance, this rapid setting cement has other good performances including the high-strength, low-shrinkage, and superior durability.
Rapid Setting Cement Main Applications:
Due to its rapid setting, fast hardening and high early strength, Rapid Setting Cement is for any type of concrete repair for high traffic areas, such as: roadways, airport pavement, industrial floors and parking decks. Its is also performance well for patching roadways, sidewalks,
street maintenace, bridge decks, tunnel and mines
Rapid Setting Cement Techinical Data Sheet:
1.Specific surface area: not less than 380 M2/KG.
2.Setting time: Initial set>=25min, Final set<= 240min. It can be changed according to customer's request.
3.Strength:
Classification |
Compressing strength (Mpa) |
Bending strength (Mpa) |
1d |
3d |
1d |
3d |
425# |
30 |
42.5 |
9.0 |
9.5 |
525# |
40 |
52.5 |
6.5 |
7.0 |
625# |
50 |
62.5 |
7.0 |
7.5 |
725# |
60.5 |
72.5 |
7.5 |
8.2 |
825# |
63.5 |
82.5 |
8.0 |
8.8 |
925# |
65.5 |
92.5 |
9.0 |
9.9 |
1025# |
70.5 |
102.5 |
10.0 |
11.5 |
4. Chemical composition: Al2O3 36-39%; SiO2: ≤8.5%; Fe2O3: 2.0-3.0%
CaO: 40-43%; MgO: 1-3%; TiO2: 1-3%; SO3: 7-10%
Rapid Setting Cement Package:
Rapid Setting Cement is available in 25kgs bags, 50 kgs bags and 1 ton-jumbo bag.
Rapid Setting Cement Notice in using Rapid Setting Cement:
Rapid Setting Cement is similar to Portland cement in color and most mixing and use procedures.
When rapid setting cement is used in any temperature different than the normal 20℃(70°F), special attention should be made to the setting time limitations and requirements.
Field test should be made to fine-tune the water/cement ratio and the retarder percentage to be used to reflect the temperature, humidity and job conditions.
Calculated amount of retarder should be mixed with water prior to concrete mixing.
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