Available PCE grades

SY-PA

SY-PA is the PCE grade for which the brochure provides both powder and liquid dosage ranges. It reports at least 25% water reduction and early-age through 28-day compressive-strength ratios. The listed performance profile includes early-strength development, compatibility with various cements and admixtures, low slump loss, high plasticizing performance, pumpability, and improved impermeability with reduced shrinkage. 

Ultra-Early-Strength and High-Dispersion grade

The second PCE grade is described as ultra-early-strength and high-dispersion. The brochure reports at least 45% water reduction, says that optimal dosage should be established by on-site tests, and lists steam-curing-free operation, demoulding within 12 hours, and demoulding strength of at least 30 MPa. 

Technical specifications

Property	SY-PA	Ultra-early-strength and high-dispersion
Recommended dosage by mass of cementitious materials	Powder: 0.16-0.3% Liquid: 0.8-2.0%	Determine optimal dosage through on-site tests
Water reduction rate	>=25%	>=45%
Compressive strength ratio	1 d >=170% 3 d >=160% 7 d >=150% 28 d >=140%	7 d >=140% 28 d >=130%
Published performance points	Excellent early-strength and strength-enhancing effects Good compatibility with various cements and admixtures Low slump loss and high plasticizing performance High-quality fluidized concrete with good pumpability Improves impermeability, reduces shrinkage, and enhances durability	Ultra-early-strength performance Steam curing-free Demoulding time <=12 h Demoulding strength >=30 MPa

Source note  All PCE values and performance statements in this table are transcribed from brochure p. 3. The brochure does not identify test standards, cement type, mix design, temperature, curing regime, or statistical tolerance. Publish these values as brochure data, not as universal guarantees.

Applications

The brochure lists the following applications for the company’s water-reducer range. It does not assign every application to a specific PCE grade, so confirm grade suitability through project testing and current technical documentation. 

• Ready-mix concrete
• Precast concrete components
• High-performance concrete
• Infrastructure and commercial construction projects
• Sea-water and sea-sand concrete
• Project examples shown in the brochure: industrial floors, tunnels, bridges, hydraulic structures, precast components, and wind-power works

Dosage and use

For SY-PA, the brochure recommends 0.16-0.3% for powder and 0.8-2.0% for liquid, measured by mass of cementitious materials. For the ultra-early-strength, high-dispersion grade, it directs users to determine the optimal dosage through on-site tests. The range-level precautions say to select dosage according to the concrete grade and construction needs, add the product with mixing water or by another suitable method, and control water strictly to prevent segregation. 

Packaging and storage

Item	Brochure guidance
Packaging	25 kg bag; 1,000 kg IBC tank; customized packaging available
Storage	Store in a cool, dry environment and avoid direct sunlight
Shelf life	12 months in original unopened packaging

Source note  This is range-level guidance on brochure p. 2. The brochure does not map each pack type to powder or liquid PCE. Confirm the pack format for the selected grade before publishing or quoting.

Precautions

• Set the dosage according to the concrete grade and construction requirements.
• Add with the mixing water or use another validated addition method.
• Do not mix directly with other admixtures; run compatibility testing before combined use.
• Strictly control mixing water to prevent segregation.
• Confirm the brochure phrase ‘test compatibility before cement replacement’ with the technical team before publishing it. The wording is ambiguous and may be a translation issue.

Source note  Precautions are based on brochure p. 2. The compatibility language above is conservatively clarified; the source separately states ‘No mixing with other admixtures’ and ‘Test compatibility before cement replacement.’

Why choose the appropriate PCE grade

The brochure presents the two PCE grades for different performance priorities. SY-PA includes powder and liquid dosage ranges and a broad early-strength and workability profile. The ultra-early-strength, high-dispersion grade emphasizes higher published water reduction, rapid demoulding, and no steam curing. Final selection should follow laboratory and site trials using the actual cementitious materials and production conditions.  [Brochure p. 3]

Call to action

Contact Qiandao New Materials with the required concrete grade, cementitious materials, target workability, strength schedule, curing method, and packaging preference. Request the current technical data sheet and confirm whether SY-PA or the ultra-early-strength, high-dispersion grade matches the project requirements.

Frequently asked questions

What is PCE polycarboxylate superplasticizer?

The brochure identifies PCE as polycarboxylate superplasticizer and presents it as part of the company’s concrete water-reducer range. 

Which PCE grades are listed?

The technical table shows SY-PA and an Ultra-Early-Strength & High-Dispersion grade. The table layout indicates that these are grades within the PCE family, but the brochure does not expressly define the naming relationship. 

What dosage does the brochure recommend for SY-PA?

The listed dosage by mass of cementitious materials is 0.16-0.3% for powder and 0.8-2.0% for liquid. 

What water reduction rates are published?

The brochure reports at least 25% for SY-PA and at least 45% for the ultra-early-strength, high-dispersion grade. 

Can PCE be used for precast concrete?

Precast concrete components are listed among the range-level applications, and the ultra-early-strength grade is described with demoulding-related performance. Confirm the selected grade through trials and the current technical data sheet. 

How should PCE be stored?

The brochure says to store the product in a cool, dry environment away from direct sunlight. It states a 12-month shelf life in original unopened packaging. 

Can PCE be mixed with other admixtures?

The brochure warns against mixing with other admixtures and also calls for compatibility testing. Treat this as a requirement to test the complete admixture system before use and obtain technical confirmation for the proposed combination.