Concrete Retarder
MNC-BS type concrete
Our concrete retarderfeatures good workability, strong cohesiveness, no segregation and no bleedingwith water reducing rate ranging from 2.5 percent to 3.5 percent. If combinedwith superplasticizer, itcan efficiently reduce its dosage and cost. Besides, it largely improves thedurability index of concrete impermeability, freeze-thaw resistance,anti-carbonization, and it also increases concrete strength at later stage aswell as physical and mechanical properties of concrete.
In order to keep good pumpabilityand construction performance of concrete within required time, concrete
Technical Specifications
Items | Required Parameter Value in the Standard | Test result of our product |
Visual Appearance | White or yellowish crystal powder | White or yellowish crystal powder |
Loss on drying (%) | ≤0.5 | 0.26 |
Purity (%) | 98.0 – 102.0 | 99.21 |
Reducing Substances (%) | ≤0.7 | 0.34 |
Heavy Metal, as Pb, ug/g | ≤10 | < 10 |
Sulfate (%) | ≤0.05 | < 0.05 |
Chloride (%) | ≤0.07 | < 0.07 |
Lead (ug/g) | ≤2 | < 2 |
Arsenic (ug/g) | ≤2 | < 2 |
PH value | 6.2-7.8 | 6.80 |
Dosageand Uses
1. Dosage of concrete
2. Initial slump of concrete retardermixed with naphthalene superplasticizerranges from
Packaging
Concrete retarder is packedin woven bag with plastic liner, with each bag weighing