DUCONMIX RSP PCE 800

Retarding Superplasticizer Concrete Admixture

Manufactured by Ducon Construction Chemicals Industries Ltd. at our Gazipur production facility, Duconmix RSP PCE 800 is the retarding superplasticizer Bangladesh ready-mix operators specify when a pour has to survive traffic, heat and long transit without losing slump. Built on modified polycarboxylate ether chemistry, it holds workability in excess of 3 hours at +25°C while cutting mixing water by more than 20% on suitable mix designs backed by the same ready-mix concrete admixture supplier Bangladesh RMC plants already order from for tested, batch-consistent performance.

Pack Size:

5 kg, 10 kg, 20 kg, 250 kg drums, and bulk supply

Consumption:

200 g – 600 g per 50 kg cementitious material (confirm via trial mix)

What is Duconmix RSP PCE 800?

Duconmix RSP PCE 800 is a locally manufactured retarding superplasticizer by Ducon Construction Chemicals Industries Ltd, built on modified PCE chemistry for Bangladesh’s ready-mix and site-batched concrete. It cuts mixing water to boost strength while extending workability through transit, pumping and placement, critical during March-September heat when trucks lose hours to congestion. Produced at the Gazipur facility, each drum ships with certified test data (ASTM C-494 Type B, D & G; EN 934-2; IS 9103 DA) and clear dosage guidance, removing site guesswork. Local formulation means shorter lead times for distributors and batching plants’ scheduling fixed pours. For procurement teams comparing admixture prices, documented consistency beats marginally cheaper alternatives which is why consulting engineers and plant managers repeatedly specify it.

Application Process

1. Dosing:

Begin with 200–600 g of Duconmix RSP PCE 800 per 50 kg cement for trial mixes. Exact dosage varies with cement type, temperature, aggregate grading and target water reduction. Mixes needing over 20% water cut lean toward the higher end. Lock the final figure through trial batches before scaling up.

2. Timing:

Pour Duconmix RSP PCE 800 into the drum only after 50–70% of the mixing water is already in. The admixture works best when it hits damp concrete, not dry powder or aggregate, adding it straight to dry material weakens both plasticising action and water reduction.

3. Mixing:

Mix thoroughly after dosing. Forced-action mixers need a minimum 60-second mixing cycle once the admixture is added, so it disperses evenly through the batch before slump is checked and the load is dispatched.

4. Admixture Compatibility:

Do not blend Duconmix RSP PCE 800 with melamine or naphthalene admixtures in the same batch. It pairs cleanly with lignosulphonate and carboxylic-acid plasticisers or retarders and works with most accelerators, air-entrainers, corrosion inhibitors, shrinkage reducers and SCMs like fly ash, metakaolin and silica fume.

5. Placing and curing:

Place and compact concrete soon after batching, then cure it well especially in Bangladesh's hot, dry-season heat. Even with a slump-retention superplasticizer, workability fades with temperature, cement type, aggregate and haul time, so proper curing still matters.

6. Site Precautions:

Stick to the recommended dosage unless a technician approves otherwise. Too much can push initial and final set past the planned window, boost air content, and trigger bleeding, segregation or plastic shrinkage. A minor overdose rarely hurts final strength if compaction and curing are sound, but keep an eye on formwork pressure and adjust stripping times.

Properties: Retarding Superplasticizer Concrete Admixture

Key Features:

Ready-to-use liquid; no on-site blending required
Modified polycarboxylate ether (PCE) technology for high-range water reduction
Maintains high workability for longer periods — workable in excess of 3 hours at +25°C
Good dispersion even in mixes with high fines content
Resistant to segregation and bleeding, even at high workability
Lowers pumping pressure on pumped and long-distance concrete
Chloride-free and low-alkali formulation; compatible with all cement types
Light brown liquid, specific gravity 1.08 ± 0.01 at 25°C, pH ≥ 6
Tested to ASTM C-494 Type B, D & G, EN 934-2 T3.1/3.2, and IS 9103 DA

Benefits: Duconmix RSP PCE 800

At the batching plant: as a PCE Superplasticizer Bangladesh mix designers already trust, high-range water reduction gives room to hit the target strength grade with less cement or less water — a saving that matters directly when the superplasticizer admixture price in Bangladesh is weighed against what a leaner mix design saves across a large pour.

During placement: extended workability, in excess of 3 hours at +25°C, is what separates a genuine slump retention superplasticizer from a standard plasticiser. It gives crews real margin against Dhaka traffic, pump downtime, or queued trucks at the site gate, without the concrete stiffening before it is placed.

Over the structure's service life: good dispersion in mixes with high fines content, combined with resistance to segregation at high workability, produces a denser, more consistent concrete matrix — supporting higher ultimate strength and lower long-term permeability in congested or heavily reinforced sections.

Duconmix RSP PCE 800 : Usages Area

Long-distance transporting of ready-mix concrete
Pumped concrete and high-rise pumping applications
Ready-mixed concrete supplied direct from batching plants
High-workability mixes that must resist segregation or bleeding
High-performance concrete specified for long-term durability
Congested or complex reinforced sections needing full compaction
Mix designs requiring more than 20% water reduction, and site-batched structural concrete alongside ready-mix production

Applications & Use Cases

Ready-Mix Concrete (RMC) Plants

We formulate Duconmix RSP PCE 800 for batching plants that need reliable slump retention from plant to site, shift after shift, without on-site re-tempering.

Long-Distance & Congested-Traffic Delivery

Extended workability in excess of 3 hours at +25°C protects concrete quality on routes where trucks queue in city traffic or travel far beyond a plant's usual delivery radius.

Pumped Concrete & High-Rise Placement

Improved dispersion and lower pumping pressure make Duconmix RSP PCE 800 a practical choice for tower pours and long horizontal pump lines, where blockage risk rises sharply with poor workability.

Congested & Complex Reinforced Sections

High workability without segregation lets fresh concrete flow fully around dense rebar cages and tight formwork, reducing honeycombing in beam-column joints and other detail-heavy elements.

High-Performance Concrete for Durability

As a high performance concrete admixture, it supports water-cement ratios low enough to meet demanding strength and permeability specifications on infrastructure and industrial projects.

Hot-Weather & Summer Concreting

Set retardation is controlled rather than incidental, giving crews a predictable working window during Bangladesh's hottest months, when uncontrolled ambient heat would otherwise force rapid, error-prone placement.

Mass & Large-Volume Pours

Resistance to segregation and bleeding at high workability supports the steady, uninterrupted placement mass pours require, where any stop-start in delivery risks cold joints.

High Water-Reduction Mix

For mixes engineered around water reductions beyond 20%, Duconmix RSP PCE 800 is formulated to hold that reduction without sacrificing the flow needed for placement.

Site-Batched Structural Concrete

Beyond centralised ready-mix plants, the same PCE Superplasticizer Bangladesh contractors use in RMC batching performs equally well on-site for structural pours where a mobile or site-batching setup is used instead.

Quality Assurance & Compliance

ASTM • EN • IS Certified

Multi-Standard Tested

TDS & MSDS

Available on Request

Laboratory Tested

Batch-Verified Performance

Bulk & Export

Factory-Direct Dispatch

Frequently Asked Questions

Why does my ready-mix concrete stiffen before it even reaches the pour, and how do I stop it?

In Bangladesh's heat and traffic, ready-mix concrete can start losing slump within 30–45 minutes of leaving the plant, forcing site teams to either place stiff, hard-to-compact concrete or add extra water that weakens the mix. The fix is a slump retention superplasticizer dosed at the batching stage: Duconmix RSP PCE 800 is a retarding superplasticizer Bangladesh RMC plants use specifically to hold the mix workable in excess of 3 hours at +25°C, so concrete arrives at the pour point still flowable enough to place, pump and compact properly, without anyone touching a water hose on site.

Who is a dependable ready mix concrete admixture supplier for RMC batching plants in Bangladesh?

Ducon Construction Chemicals Industries Ltd. is a ready mix concrete admixture supplier that manufactures Duconmix RSP PCE 800 under controlled batch conditions at its own Gazipur production facility, rather than importing and repackaging a third-party formulation. As an RMC admixture supplier Bangladesh batching plants can order from directly, we back every drum with a technical data sheet and ASTM C-494, EN 934-2 and IS 9103 test certification, plus dosage support, so plant managers get consistent performance from one truckload to the next instead of variability between supplier batches.

What is the superplasticizer admixture price in Bangladesh, and what affects it?

The superplasticizer admixture price in Bangladesh varies with dosage rate, order volume, pack size and delivery location, so a single fixed number rarely reflects what a specific project will actually pay. Duconmix RSP PCE 800 is supplied in 5 kg, 10 kg, 20 kg and 250 kg drums as well as bulk, letting procurement teams size an order to a single pour or a full batching-plant contract. Because dosage typically runs 200 g to 600 g per 50 kg of cementitious material, the cost per cubic metre is usually a small fraction of total concrete cost once water and cement savings are factored in — contact our technical sales team for a project-specific superplasticizer admixture price in Bangladesh quote.

What's the difference between a concrete retarder admixture and a standard plasticiser?

A standard plasticiser gives moderate water reduction and lets concrete set on a fairly normal timeline. A concrete retarder admixture like Duconmix RSP PCE 800 goes further on both counts: built on modified polycarboxylate ether (PCE) technology, it delivers high-range water reduction engineered for mixes needing more than 20% reduction, while deliberately extending the setting window so the mix stays workable for longer. That combination is what separates a PCE Superplasticizer Bangladesh ready-mix plants specify for long hauls from a basic water reducing admixture used for shorter, more predictable pours.

How much PCE superplasticizer should I dose per 50 kg bag of cement?

As a concrete admixture dosage guide, Duconmix RSP PCE 800 is typically used at 200 g to 600 g per 50 kg of cementitious material, with the exact figure confirmed by trial mix rather than assumed from the label. Job-site variables, cement type, aggregate grading, ambient temperature and the required water reduction all shift where in that range a mix should sit; designs targeting more than 20% water reduction usually need the upper end. Overdosing should be avoided without technical sign-off, since it can extend setting time beyond what's intended and increase the risk of bleeding or segregation.

Can a slump retention superplasticizer cause problems if I add too much?

Yes, even a high-performing slump-retention superplasticiser has an upper dosage limit for good reason. Overdosing Duconmix RSP PCE 800 beyond the recommended 200–600 g per 50 kg range can push initial and final set well past the intended window, increase air entrainment, and raise the risk of bleeding or plastic shrinkage. A slight overdose is unlikely to hurt ultimate strength if the concrete is properly compacted and cured, but formwork pressure and stripping times should still be monitored closely, and any dosage change outside the trial-mix range should get technical sign-off first.

Is Duconmix RSP PCE 800 compatible with fly ash, silica fume or other admixtures already in my mix?

Yes, with one notable exception. Duconmix RSP PCE 800's polycarboxylate ether (PCE) technology is compatible with slag and pozzolans such as fly ash, metakaolin and silica fume, and it works well alongside ligno-sulphonate and carboxylic-acid-based plasticisers, most accelerators, air-entrainers, corrosion inhibitors and shrinkage reducers. The one combination to avoid is melamine- or naphthalene-based admixtures in the same batch, since these are not chemically compatible with the PCE Superplasticizer Bangladesh formulation and can compromise performance. When in doubt, trial-mix any new combination before full-scale production.

Which retarding superplasticizer Bangladesh manufacturers actually produce locally instead of importing?

Ducon Construction Chemicals Industries Ltd. manufactures Duconmix RSP PCE 800 at its own Gazipur production facility rather than importing a finished formulation and repackaging it. As a retarding superplasticizer Bangladesh ready-mix operators can source directly from the manufacturer, it avoids the import lead times, customs delays and currency-driven price swings that come with sourcing this category of concrete retarder admixture from overseas suppliers. Local manufacturing also means faster turnaround on bulk orders and direct access to our technical team for dosage and mix-design support — the kind of support a reseller typically cannot offer.

How does a concrete workability improver help with congested reinforcement or complex formwork?

A concrete workability improver like Duconmix RSP PCE 800 increases flow and cohesion at a given water content, so fresh concrete moves fully around dense rebar cages, waterstops and tight formwork corners without segregating or leaving voids. Combined with its profile as a high performance concrete admixture, good dispersion even in mixes with high fines content means the paste carries aggregate through congested sections instead of the mix locking up mid-pour. That translates directly into fewer honeycombed joints, less rework, and a more consistent finish on structurally demanding elements like beam-column joints and shear walls.

How should I store Duconmix RSP PCE 800 to protect its shelf life?

Store Duconmix RSP PCE 800 under cover, out of direct sunlight, at temperatures that don't drop below +5°C; protected this way, it carries a 24-month shelf life. If the product has frozen, thaw it at +5°C or above and reconstitute with mild mechanical agitation, never pressurised air. As with any concrete retarder admixture or water reducing admixture stored on site, keep containers resealed between uses, avoid contact with eyes, skin or foodstuffs, and don't repurpose empty containers for consumables; full handling guidance is in the material safety data sheet.