La description
JK*8 high range set retarding water-reducing admixture, which is
combined of the naphthalene series and the amount of
high-performance water-reducing retarder, stabilizer, reinforcing
admixture, has a high efficiency water-reducing, retarding in the
initial setting and early strength in final setting, late-enhanced,
small slump loss etc. it is the perfect concrete admixtures for the
preparation of high-performance, high-strength concrete, mass
concrete and long-distance transport of concrete. The product can
be produced powder and liquid, to meet different engineering
requirements.
Homogeneity of Norms:
Item Norm  Item Norm
Appearance Powder  Grey brown Finesse  0.**5mm
sieve≤*2%
 Liquid Brown  Fluidity of cement **0mm
Liquid proportion 1.2?0.*2 Chlorine content No
Solid moisture rate ≤*0% Foam-breaking
time ≤*0seconds
Ph value  **9 Â
Principal Technical Performances:
1. Dosage range: Powder dosage amounts to 0.**1.2% of total
cementitious material, the liquid dosage amounts to 1.**3% of total
cementitious material, reducing-water rate is ****5%.
2. A slight increase in air content is beneficial and without
adverse effects on the concrete.
3. The product has the retarding plasticity, small slump loss,
which is extremely beneficial to the transport and to pouring of
concrete.
4. The product has a retardation **3h, it can also be adjusted for
setting time basing on the user's demand. It has not affected the
strength growth of concrete.
5. The compressive strength of concrete, flexural, tensile,
impermeability and durability are significantly improved and
enhanced.
6. the product has the broader applicability of cement, which is
the preferred preparation of concrete.
Physical and Mechanical Performance of the Concrete:
Item Factory technical norm National standard (first
class)
Water-reducing rate (%) ≥*8 ≥*2
Bleeding rate (%) ≤*0 ≤**0
Air content (%)Â <3.5Â <4.5
Setting
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China |
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Water-reducer&Set-retarder
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(Negotiable)
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