Sika Plastiment BV-40 IN
Water Reducing Set Retarding Admixture for Hot Weather and Long Haul Concrete
Authorized Project Distributor — Sika India | Space Arc Engineering, Ghaziabad
Product Overview
Sika Plastiment BV-40 IN is a lignosulphonate-based, combined water reducing and set retarding concrete admixture. It performs two valuable functions simultaneously: it reduces the water demand of concrete (improving strength and durability) while simultaneously retarding the initial set time, giving concrete more time to remain workable during transportation, placing, and finishing operations. In India, where summer temperatures routinely exceed 35–40°C, set retardation is critical to prevent premature stiffening of concrete in transit and on site. Sika Plastiment BV-40 IN is the admixture of choice for ready-mix plants serving sites at distance, mass concrete pours where extended open time is needed, and any hot-weather concreting scenario. Space Arc Engineering distributes Sika Plastiment BV-40 IN for RMC plants, infrastructure pours, and hot weather concrete operations across Delhi NCR and UP.
Applications
- Hot weather concreting in Indian summers to prevent premature stiffening
- Long haul ready-mix concrete deliveries requiring extended open time
- Mass concrete pours in dam construction and large foundations
- Slip form concreting where extended workability is needed
- Concrete poured in consecutive lifts where extended open time prevents cold joints
- Raft foundation and large slab concrete with extended placing time
Key Advantages
- Dual action — water reduction AND set retardation in one product
- Maintains workability in ambient temperatures up to 40°C and above
- Prevents premature stiffening in long-distance RMC delivery
- Reduces water-cement ratio for improved strength and durability
- Chloride-free — no risk to steel reinforcement
- Economical lignosulphonate base suitable for volume concrete
Technical Data
| Type | Lignosulphonate-based water reducing set retarder (Type B/D) |
| Form | Brown liquid |
| Dosage | 0.2–0.6% by weight of cement |
| Water Reduction | 5–10% |
| Retardation | 1–3 hours extended open time (dose dependent) |
| Pack Size | 25 L, 200 L, 1000 L IBC containers |
Get a Quote
📞 +91 9999155255
📧 info@space-arc.com
🏢 Space Arc Engineering, Sahibabad, Ghaziabad
Frequently Asked Questions
How much retardation does Sika Plastiment BV-40 IN provide?
At typical dosages (0.2–0.4% by weight of cement), Sika Plastiment BV-40 IN extends initial set time by approximately 1–3 hours compared to a plain control mix. Higher dosages provide more retardation. Always trial-mix to calibrate the retardation level to your specific cement and site conditions.
Can Sika Plastiment BV-40 IN be used with fly ash concrete?
Yes. Sika Plastiment BV-40 IN is compatible with concrete mixes containing fly ash and GGBS. Blended cement mixes naturally have slower setting times, so the dosage may need to be reduced to avoid excessive retardation when combined with SCMs.
Is Sika Plastiment BV-40 IN the same as a plain set retarder?
No. Sika Plastiment BV-40 IN is a combined water reducer and set retarder (ASTM C494 Type B/D equivalent). It provides both workability improvement through water reduction and the time extension from retardation. A plain set retarder (Type B) only retards without significant water reduction.
Source Sika Plastiment BV-40 IN for Your Project
Space Arc Engineering is an Authorized Project Distributor for Sika India serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.