Polycarboxylic acid superplasticizer is a new type of concrete
superplasticizer
Polycarboxylic acid superplasticizer is the third generation of new
superplasticizer for concrete. Compared with naphthalene
superplasticizer, polycarboxylic acid superplasticizer has the
advantages of high water reduction rate, high strength, low
shrinkage, low secretion and low slump loss. Polycarboxylate
superplasticizer has relatively good adaptability with different
cement. Compared with naphthalene superplasticizer, the strength of
polycarboxylate superplasticizer concrete increases faster in early
and late periods, especially the strength of high-strength concrete
increases more obviously in late periods.
Typical Applications & Advantages
This product is mainly used to formulate early strength concrete.
Its main features are as follows:
(1) High water reducing rate: The dosage range is 0.3 — 0.8%. The
recommended dosage is 0.5% of cementitious material.
According to ASTM C 494 type E & F “Concrete Admixtures” standard
test, water reducing rate is above 28%. Water reducing rate can be
above 30% under optimal dosage (confirmed by lab tests).
Cement-saving rate is 15-20%.
(2) High early strength: concrete compressive strength ratio is
above 180% after 1 day, above 160% after 3 days, 150% after 7 days,
and 40% after 28 days, if our product is used under optimal dosage.
Concrete long-term strength will also be enhanced obviously.
(3) Long durability: PC-E, with low chloride and alkali content,
can decrease concrete long-term air shrinkage and shrinkage crack.
Concrete shrinkage ratio will be less than 110%. Suitable air
content and foaming structure will ensure concrete long durability
if our product is used. It is far beyond the post-performance of
both traditional naphthalene.
(4) Production clean degree is high: Due to formaldehyde,
industrial naphthalene or other flammable and toxic chemicals not
being used in production process, it meets cleaning production
standard. This new production technology is a fully automated
process without heat production.
(5) Safety: non-toxic, no radiation, non-inflammable, no corrosion
for steel bar or aggregate, and no formaldehyde, or aromatic
residues harmful for human. Our product complies with the current
environmentally friendly standards for interior and exterior
construction.
| Product name | Mother liquor of Polycarboxylate Superplasticizer |
| Product number | KH-401 | Delivery date | May 5, 2023 |
| Test items | Control standard | Test results |
| Water reduction rate(%) | ≥25 | 36 |
| Bleeding rate(%) | ≤60 | 0 |
| Air content(%) | ≤6.0 | 1.5 |
| Difference in setting time(Min) | Initial setting | Final set | Initial setting | Final set |
| -90—+120 | -90—+120 | +15 | +10 |
Compressive strength ratio(%) | 3d | ≥160 | 165 |
| 7d | ≥150 | 160 |
| 28d | ≥140 | 145 |
| 28d Shrinkage ratio (%) | ≤110 | 85 |
| Rebar corrosion | Whether there is rust damage | NO |
| Pure pulp fluidity (mm) | ≥220 | 280 |
| proportion (g/cm3) | 1.03—1.20 | 1.08 |
| PH | 6—8 | 6.9 |
| Solid content | 50% | 49.8 |
Dosage
1) Dosage range:0.3%–0.8% weight of cementitious material.
(calculated according to PC-E)
2) Recommended dosage: 0.4% weight of cementitious material
(calculated according to PC-E). Concrete lab test for optimal
dosage is required before usage or cement changing.
Packaging, Storage and Transport
1) Our product can be packed in 200L or 1000L plastic drums
according to customer’s requirements.
2) Material should be stored in a cool and dry place.
3) Shelf life is 1 year. It can also be used after shelf life if
concrete test is good.
Health & Safety Precautions
Polycarboxylate Superplasticizer does not fall into the hazardous
classifications for current regulations. However, it should not be
swallowed or allowed to come into contact with skin and eyes.
Suitable protective gloves and goggles should be worn. Splashes on
the skin should be removed with water. In case of contact with eyes
rinse immediately with plenty of water and seek medical advice. If
swallowed, seek medical attention immediately and do not induce
vomiting.
Safety Precautions
1. this product is a weak alkaline liquid, non-toxic,
non-corrosive, environmentally friendly product. It is not edible
and when exposed to the human body and eyes, should be washed with
water as soon as possible, causing allergic to some of the human
body should seek timely medical treatment.
2. this product should be stored in a covered container to avoid
exposure to moisture/water and debris, mixed with or evaporation of
water dry.
