Additivi per calcestruzzo

Overview of Concrete Additives

Concrete is the backbone of modern construction, but plain concrete often falls short of meeting the demanding requirements of today’s engineering projects. At ConcreteAndMore, we provide a comprehensive range of high-quality concrete admixtures designed to modify and enhance the properties of fresh and hardened concrete. Whether you need to improve workability, accelerate or retard setting time, increase compressive strength, or ensure superior durability in harsh environments, our chemical solutions deliver consistent and reliable results. From large-scale infrastructure projects to specialized precast applications, our concrete additives help you achieve better performance with lower production costs.

Features of Concrete Additives

• Riduzione dell'acqua elevata – Our superplasticizers reduce water content by up to 40% while maintaining excellent fluidity, leading to higher strength and density.
• Lavorabilità migliorata – Enhance the flowability and pumpability of concrete without increasing water demand, making placement easier and faster.
• Controlled Setting Time – Choose from accelerators for cold weather concreting or retarders for large pours and hot weather conditions.
• Enhanced Durability – Increase resistance to freeze-thaw cycles, chemical attack, abrasione, and chloride ingress.
• Crack Reduction – Shrinkage-reducing agents and fibers minimize plastic and drying shrinkage cracks.
• Eco-Friendly Formulations – Many of our admixtures are designed to reduce cement content and carbon footprint without compromising performance.
• Qualità costante – Every batch is manufactured under strict ISO quality control standards to ensure uniform performance on site.
• Ampia compatibilità – Suitable for all types of cement, aggregati, e altri materiali da costruzione.

Specification Table of Concrete Admixtures

Product Type	Aspetto	Main Component	Tasso di riduzione dell'acqua	Dosaggio (% di cemento)	Applicazione
Superfluidificante policarbossilato (PCE)	Bianco / Light yellow powder or liquid	Etere policarbossilato	25% – 40%	0.1% – 1.0%	Calcestruzzo ad alta resistenza, calcestruzzo autocompattante, elementi prefabbricati
Sodium Naphthalene Sulfonate (SNF)	Brown / Dark brown powder	Naphthalene sulfonate formaldehyde condensate	15% – 25%	0.5% – 1.5%	Calcestruzzo preconfezionato, concrete piles, industrial flooring
Calcium Lignosulfonate (CLS)	Brown powder	Modified lignin	6% – 12%	0.2% – 0.5%	Mass concrete, grouting, mortaio
Setting Accelerator	Grey / Polvere bianca	Formiato di calcio, aluminum sulfate	N/A	1% – 3%	Calcestruzzo proiettato, emergency repairs, cold weather concreting
Setting Retarder	Brown liquid or powder	Carbohydrates, phosphonates	N/A	0.1% – 0.6%	Long-distance transport, hot weather concreting, slipform paving
Air Entraining Agent	Yellow / Brown liquid	Tensioattivi sintetici	N/A	0.01% – 0.05%	Bridge decks, road pavements, freeze-thaw resistant concrete
Shrinkage Reducer	Transparent liquid	Polyether derivatives	N/A	0.5% – 2.0%	Floor screeds, serbatoi d'acqua, large slabs

Applicazioni degli additivi per calcestruzzo

• High-Rise Buildings & Grattacieli – High-strength concrete with superior pumpability and rapid setting cycles.
• Ponti, Tunnel & Dams – Durability-enhancing admixtures that resist chemical attack, water permeation, e danni da gelo-disgelo.
• Precast & Prestressed Concrete – High early strength and precise workability for molds, tubi, travi, and paving blocks.
• Ready-Mix Concrete Plants – Slump retention and consistent performance over long transport distances.
• Calcestruzzo proiettato & Sprayed Concrete – Accelerators for fast setting and good adhesion in tunneling and slope stabilization.
• Pavimenti industriali & Pavimenti – Shrinkage reducers and air entrainers for crack-free and abrasion-resistant surfaces.
• Mass Concrete Foundations – Retarders to control heat of hydration and prevent thermal cracking.
• Underwater & Marine Concrete – Anti-washout admixtures that prevent cement paste loss in water.
• Calcestruzzo Autocompattante (SCC) – High-range water reducers and viscosity modifiers for complex formwork.

Profilo Aziendale

Concrete and More è il leader globale nel calcestruzzo cellulare a bassa densità (LDCC), Cemento leggero cellulare (CLC), e soluzioni avanzate di schiuma ingegnerizzata. Conosciuta a livello mondiale per il suo impegno nella ricerca, innovazione, e competenza applicata, forniamo soluzioni in schiuma ingegnerizzata dall'inizio del 2012.

Possiamo fornire alta qualità additivo concreto. Abbiamo un dipartimento tecnico professionale e un dipartimento di supervisione della qualità, un laboratorio ben attrezzato, e dotato di apparecchiature di prova avanzate e centro di assistenza clienti post-vendita. Inviaci un'e-mail o fai clic sui prodotti necessari per inviare una richiesta.

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5 FAQs of Concrete Additives

1. What are concrete admixtures and why do I need them?
Concrete admixtures are chemical additives added during mixing to modify the properties of fresh or hardened concrete. They help improve workability, accelerate or delay setting time, increase strength, migliorare la durabilità, and reduce water content. Using admixtures allows you to produce higher quality concrete with less cement, saving cost and improving performance.

2. What is the difference between PCE and SNF superplasticizers?
PCE (Etere policarbossilato) offers much higher water reduction (fino a 40%) and better slump retention, making it ideal for high-strength and self-compacting concrete. SNF (Naftalene solfonato) is more economical and works well for general ready-mix and precast applications. Choose PCE for superior performance or SNF for cost-sensitive projects.

3. How do I determine the correct dosage for an admixture?
Il dosaggio dipende dal tipo di cemento, progettazione della miscela, temperatura ambiente, e le prestazioni desiderate. Always start with our technical data sheet recommendations and conduct trial mixes. For precise guidance, contact our technical support team with your concrete mix details and project requirements.

4. Can I use multiple admixtures in the same concrete mix?
SÌ, but compatibility must be tested first. Some admixtures work synergistically, while others may interfere (per esempio., certain superplasticizers and retarders). ConcreteAndMore offers pre-formulated blended admixtures for common combinations, or we can help you test compatibility for custom blends.

5. What is your MOQ and lead time?
MOQ varies by product, typically 500kg for powder admixtures and 1000L for liquids. Standard lead time is 7–15 days after order confirmation. Samples are available for testing, and bulk pricing is offered for large projects or regular orders. Contact our sales team for exact details.