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Polycarboxylic Acid Water Reducer Mother Liquor with High Slump Retention

XRT-F is a next-generation slump-retaining polycarboxylate superplasticizer (PCE) independently developed by our company, designed to significantly mitigate slump loss in concrete. This product is engineered for synergistic blending with high-range water-reducing PCEs, making it ideal for applications in pumped concrete, ultra-fluid self-compacting concrete (SCC), high-strength/high-performance concrete (HPC), and commercial ready-mix concrete.
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                                Polycarboxylic acid water reducer mother liquor with high slump retention


                                                                                                    -------XRT-F

Polycarboxylic acid water reducer mother liquor Description:

XRT-F is a next-generation slump-retaining polycarboxylate superplasticizer (PCE) independently developed by our company, designed to significantly mitigate slump loss in concrete. This product is engineered for synergistic blending with high-range water-reducing PCEs, making it ideal for applications in pumped concrete, ultra-fluid self-compacting concrete (SCC), high-strength/high-performance concrete (HPC), and commercial ready-mix concrete.

Polycarboxylic acid water reducer mother liquor  Molecular Design & Mechanism:
XRT-F features an innovative molecular architecture incorporating ester, amide, and other reactive functional groups. Under the alkaline conditions of concrete (pH > 12), the ester groups undergo controlled hydrolysis, gradually releasing carboxylate groups that adsorb onto cement particle surfaces. This mechanism provides:

1.Sustained Dispersibility: Time-release of dispersive moieties maintains fluidity for 90-120 minutes without compromising early    

    strength development.

2.PH-Responsive Kinetics: Hydrolysis rate is self-regulating, accelerating as alkalinity increases during hydration.

3.Steric Stabilization: Grafted polyether side chains (PEO) form a 15-20nm protective layer, preventing particle flocculation through 

   steric hindrance.

Polycarboxylic acid water reducer mother liquor  Performance Advantages:
  • Slump Retention: Maintains ≥200mm slump flow for 2 hours at 0.15-0.25% dosage (ASTM C1437).

  • Compatibility: Fully miscible with Type I-V cements and mineral admixtures (fly ash, slag, silica fume).

  • Hydration Control: Retards initial setting by 60-90 minutes while enhancing 28-day compressive strength by 10-15%.

  • Pore Structure Optimization: Reduces capillary porosity by 25%, improving chloride ion penetration resistance (ASTM C1202).

Polycarboxylic acid water reducer mother liquor Application field:

Application FieldDescription
Concrete PreparationUsed for early strength, slow setting, precast, cast-in-place, flowable, self-compacting, mass, high-performance, and fair-faced concrete. Also for pre-mixed concrete in industrial and civil buildings.
Commercial ConcreteApplied in low-grade commercial concrete production.
InfrastructureUtilized in high-speed railways, nuclear power, water conservancy, subways, and large bridges.
Key ProjectsUsed in major national projects such as highways and port terminals.
General ConstructionApplicable to civil construction and commercial concrete mixing stations.

Polycarboxylic acid water reducer mother liquor  Usage Instructions:

1.Recommended Dosage

 The typical dosage ranges from 0.6% to 1.2% by mass of the total binder materials (cement + supplementary cementitious materials). The optimal dosage should be determined through trials based on:

(1)Cement type and fineness

(2)Aggregate properties (particle size distribution, moisture content)

(3)Target slump retention time

(4)Ambient temperature and humidity conditions

2.Compatibility & Formulation

(1)Synergistic Blending: Can be combined with high-range polycarboxylate superplasticizers (PCEs) to optimize      

      water reduction and workability retention.

(2)Solo Application: Suitable for standalone use in standard concrete mixes requiring moderate slump retention.

(3) Dosing Method: For best results, add the mother liquor during the mixing process after initial water addition.



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