Polycarboxylic acid water-reducing agent is
a kind of concrete superplasticizer with good comprehensive
properties and good perspective. It is a composite admixture
of polycarboxylate copolymers and other auxiliaries.
Compared with other similar products, this product is better
in its performance and performance/cost ratio.
Properties:
1. Low dosage and high range of water reduction efficiency.
Its water reduction efficiency can be up to 45%;
2. High slump-retaining ability. Slump loss of the concrete
is less than 5% in 1h, and less than 10% in 2h.
3. High compressive strengths. It can increase the
compressive strengths of concrete by 50-110% in 3 days,
40-80% in 28 days, 30-60% in 90 days;
4. Excellent workability. High ability
against bleeding or segregation, low
resistance and easy for pumping
5. Suitable bubble content, no bad influence on concrete
modulus of elasticity, good freeze resistance;
6. Less than 0.2% alkali content,
7. Nontoxic, no formaldehyde and no pollution;
8. Stable performance, no delamination and no sedimentation
for long storage period, no crystallization in low
temperature.
9. High compatibility, compatibly with many cement types and
mineral admixtures, particularly fit for high durability
concrete and self compacting concrete.
Specification:
| items |
index |
| Appearance |
light brown
liquid |
| Density (20℃)
g/ml |
1.09±0.02 |
| Solid content
% |
20±1 |
| Cement paste
fluidity (cement base) (mm) |
250（W/C=0.29） |
| pH |
6-8 |
| Chloride % ≤ |
0.02 |
| pH value(1％ water
solution) |
1.5~2.0 |
| Alkali
(Na2O+0.658K2O)(%) ≤ |
0.2 |
Usage methods:
1. The dosage is 0.4-2.0% of the
cementitious materials by weight, normally 0.4-1.2%. Do
concrete mixture tests beforehand.
2. No mixture with naphthalene-base
water-reducer. Compatibility tests should be conducted
beforehand when mixed with other auxiliaries.
3. Slump retention is sensitive to water,
water content should be strictly controlled.
4. Concrete cure should be paid attention
to.
Scope of applications:
This product is suitable for pumping or
normal concrete engineering of C15-C60, particularly for
engineering with high durability, excellent fluidity, strong
slump retention ability and excellent aesthetic
appearance.For high fluidity, self compacting and as cast
finish concrete, this product is a good choice.
Package and Storage:
Liquid, package in barrel, storage for one
year in dry and shady place, avoiding frost.
