construction concrete chemicals

Naphthalene Superplasticizer (SNF Water Reducer)

CAS: 36290-04-7

Sulfonated naphthalene formaldehyde (SNF) condensate superplasticizer is a classic second-generation water-reducing admixture delivering water reduction rates of 15–25%. It provides strong initial fluidity and early strength gain, making it well-suited for precast concrete and normal-strength ready-mix applications. The product is cost-effective and compatible with most Portland cement types.

construction concrete chemicals

PCE Superplasticizer (Polycarboxylate Ether Water Reducer)

CAS: 9003-01-4

Polycarboxylate ether (PCE) superplasticizer is a high-performance water-reducing admixture based on comb-shaped copolymer technology, offering water reduction rates exceeding 30%. It imparts excellent workability retention to concrete mixes without retardation and is compatible with supplementary cementitious materials. Widely adopted in ready-mix, precast, and high-performance concrete applications.

construction concrete chemicals

Polypropylene Fiber for Concrete Anti-Cracking

CAS: 9003-07-0

Polypropylene (PP) micro-fiber reinforcement is a synthetic fiber added to concrete and mortar to control plastic shrinkage cracking, enhance toughness, and improve impact resistance. The three-dimensional random distribution of fibers bridges micro-cracks before they can propagate, significantly reducing crack width and frequency. It is available in monofilament and fibrillated forms, with lengths from 6 to 54 mm.

construction concrete chemicals

Polyurea Expansion Joint Filler

CAS: 9009-54-5

Two-component polyurea elastomeric joint filler provides flexible, durable sealing of expansion joints, control joints, and isolation joints in concrete floors and pavements. It delivers excellent resistance to dynamic loading, wheel traffic, thermal expansion, and chemical spills. Polyurea cures in 30–60 minutes at ambient temperature and offers superior abrasion resistance compared to polyurethane- or silicone-based joint sealants.

construction concrete chemicals

Polyurethane Expansive Grouting Resin

CAS: 9009-54-5

Polyurethane (PU) expansive grouting resin is a single or two-component system that reacts with water to generate a rigid or flexible foam, expanding up to 20–30 times its original volume to fill voids and stop water ingress in concrete structures. It is highly effective for stopping active water flows in tunnels, basements, and underground structures. Available in hydrophilic (reacts with water to foam) and hydrophobic (non-foaming, for soil injection) grades.

construction concrete chemicals

Polyvinyl Alcohol (PVA) Fiber for Crack-Resistant Mortar

CAS: 9002-89-5

Polyvinyl alcohol (PVA) fiber is a hydrophilic synthetic fiber used in cement composites to improve tensile strength, flexural toughness, and crack resistance. Due to its high tensile modulus and strong chemical bond with the cement matrix, PVA fibers are especially effective in engineered cementitious composites (ECC) and fiber-reinforced concrete overlays. PVA fibers can be manufactured in micro to macro lengths for different applications.

construction concrete chemicals

Potassium Silicate Concrete Surface Sealer

CAS: 1312-76-1

Potassium silicate solution is used as a penetrating concrete sealer and surface hardener. It reacts with calcium hydroxide in concrete to form insoluble potassium calcium silicate crystals, sealing pores and increasing surface hardness and abrasion resistance. Its high pH and reactivity make it slightly faster-acting than lithium silicate while still being more stable than sodium silicate. It is widely used for initial concrete floor densification prior to polishing.

construction concrete chemicals

Rapid-Setting Hydraulic Cement Waterproof Plug

Rapid-setting hydraulic cement waterproof plug is a single-component, ultra-fast-setting cementitious product that sets and hardens within 1–5 minutes to stop active water leaks in concrete structures. It is based on modified Portland cement with expansive additives that expand slightly on setting to create a watertight seal even under hydrostatic pressure. Widely used in basement waterproofing, tunnel repair, and dam sealing.

construction concrete chemicals

Redispersible Polymer Powder (VAE RDP)

CAS: 9003-20-7

Vinyl acetate-ethylene (VAE) redispersible polymer powder (RDP) is spray-dried polymer latex that, when mixed with water, redisperses into a fine emulsion and co-binds with cement hydration products. It significantly improves adhesion, flexibility, tensile strength, and water resistance of dry-mix mortar formulations. It is a key component in tile adhesives, external insulation compound systems (ETICS/EIFS), and repair mortars.

construction concrete chemicals

SBR Latex Bonding Agent for Concrete

CAS: 9010-81-5

Styrene-butadiene rubber (SBR) latex is a versatile polymer bonding agent used as a primer/slurry coat to maximize adhesion between new and old concrete or between concrete and repair mortars. When mixed with cement and applied as a slurry, it significantly improves bond strength due to the polymer's flexibility and adhesion to both the substrate and the overlay. Also used as an additive in repair mortars to improve crack resistance and waterproofing.

construction concrete chemicals

Self-Leveling Compound Additive (Casein & Redispersible Polymer)

CAS: 9000-71-9

Casein-based self-leveling compound additive functions as a flow agent and anti-sag modifier in cementitious self-leveling underlayments (SLUs). It imparts excellent flowability at low water-to-cement ratios while providing sufficient open time and preventing bleeding or segregation. Often combined with redispersible polymer powder to improve adhesion, flexibility, and wear resistance of the hardened compound.

construction concrete chemicals

Set Accelerator for Sprayed Concrete (Shotcrete)

CAS: 7784-24-9

Alkali-free liquid set accelerator for sprayed concrete (shotcrete) provides rapid setting and early strength development immediately after spray application, enabling the construction of thicker layers without sloughing and minimizing rebound. Unlike traditional alkali-based accelerators, alkali-free formulations preserve long-term strength and do not cause flash set problems. Compliant with EN 934-5 for shotcrete admixtures, with dosage typically 4–8% by cement weight.

construction concrete chemicals

Shrinkage Reducing Admixture (Propylene Glycol SRA)

CAS: 57-55-6

Propylene glycol-based shrinkage reducing admixture (SRA) reduces the surface tension of pore water in concrete, significantly decreasing drying shrinkage and the associated cracking risk. It can reduce drying shrinkage by 25–50% depending on dosage and mix design, extending service life of floors, slabs, and bridge decks. The product is chloride-free and compatible with all standard concrete admixtures.

construction concrete chemicals

Silane Concrete Sealer (Isobutyltriethoxysilane)

CAS: 5578-64-3

Isobutyltriethoxysilane is a penetrating silane sealer that reacts with concrete substrate to form a covalently bonded, water-repellent organosilicon network within the pore structure. It provides deep penetration (up to 20 mm), lasting hydrophobic protection against chloride ingress, water absorption, and carbonation for 10+ years. It is widely used for post-construction protection of bridges, parking structures, and coastal concrete.

construction concrete chemicals

Silica Fume (Microsilica) Pozzolanic Additive

CAS: 69012-64-2

Silica fume (microsilica) is an ultra-fine by-product of silicon metal production, consisting primarily of amorphous silicon dioxide with particle sizes 100x finer than cement. As a pozzolanic additive at 5–10% replacement of cement, it reacts with calcium hydroxide to form additional calcium silicate hydrate, dramatically densifying the concrete microstructure, increasing strength, and reducing permeability. It is essential in high-performance and ultra-high-performance concrete.

construction concrete chemicals

Silicone Emulsion Water Repellent for Concrete

CAS: 63148-62-9

Silicone emulsion water repellent is a water-based siloxane/silicone formulation used as both an integral concrete admixture and a surface treatment to impart hydrophobicity. As an integral admixture, it homogeneously distributes hydrophobic species throughout the concrete matrix. As a surface treatment, it penetrates and reacts with the concrete to form a durable water-repellent barrier without changing the appearance.

construction concrete chemicals

Sodium Gluconate Set Retarder

CAS: 527-07-1

Sodium gluconate is a highly effective concrete set retarder derived from glucose fermentation, capable of extending initial setting time by 2–10 hours depending on dosage. It is commonly used in ready-mixed concrete for long-haul transport, oil-well cementing, and hot-weather construction. The product also exhibits mild water-reducing properties and enhances concrete workability.

construction concrete chemicals

Sodium Silicate Chemical Grouting Agent

CAS: 1344-09-8

Sodium silicate (water glass) solution is a classic chemical grouting agent used in ground improvement and concrete treatment. When mixed with a reactant such as calcium chloride or sulfuric acid, it undergoes rapid gelation to form a rigid silica gel that binds soil particles, waterproofs formations, and seals cracks. It is widely used in underpinning, foundation strengthening, and tunneling through water-bearing soils.

construction concrete chemicals

Sodium Thiocyanate Set Time Accelerator

CAS: 540-72-7

Sodium thiocyanate is a highly effective chloride-free accelerator for Portland cement concrete, accelerating hydration and improving early compressive strength, particularly in cold-weather conditions. It is commonly used as a component in multi-component non-chloride accelerator systems and can achieve comparable performance to calcium chloride without the associated corrosion risks. Typical dosage is 0.5–2% by cement weight.

construction concrete chemicals

Starch Ether Anti-Sag Additive for Mortar

CAS: 9032-08-0

Modified starch ether is a specialty additive for dry-mix mortars that dramatically improves anti-sag performance on vertical surfaces, enabling thick-layer application without slumping. It acts as a thixotropic agent at low dosage (0.02–0.1% by dry mortar weight), significantly increasing the sag resistance while maintaining good spreadability. It is particularly effective in combination with HPMC in tile adhesives and renders.

construction concrete chemicals

Steel Fiber for Concrete Reinforcement (Dramix Type)

Hooked-end steel fiber (Dramix type) is a high-performance concrete reinforcement material that significantly improves flexural strength, toughness, impact resistance, and ductility of concrete. The mechanical anchorage from hooked ends provides superior bond to the concrete matrix. Steel fiber-reinforced concrete (SFRC) is used to partially or fully replace conventional rebar in slabs, tunnels, and industrial floors per design standards such as fib Model Code.

construction concrete chemicals

Synthetic Air-Entraining Agent (Sodium Lauryl Sulfate)

CAS: 151-21-3

Sodium lauryl sulfate (SLS)-based synthetic air-entraining agent is a high-purity surfactant admixture that generates a stable, finely dispersed air void system in concrete. It offers excellent consistency and reproducibility compared to natural resin-based AEAs, and is particularly effective in concrete mixes containing fly ash or slag. Compliant with ASTM C260 and widely used in precast and ready-mix concrete.

construction concrete chemicals

Synthetic Fiber Blend Micro-Crack Inhibitor

Synthetic micro-crack inhibitor is a blend of polypropylene and polyvinyl alcohol micro-fibers engineered to provide three-dimensional crack control at multiple scales in concrete and mortar. The dual-fiber system simultaneously addresses plastic shrinkage cracking (PP fibers, 6–12 mm) and hardened-state micro-crack propagation (PVA fibers, 3–6 mm). Available as pre-blended packets for simple addition directly to the concrete mixer.

construction concrete chemicals

Triethanolamine Cement Grinding Aid & Accelerator

CAS: 102-71-6

Triethanolamine (TEA) is a versatile concrete admixture used both as a cement grinding aid at the mill and as an early-strength accelerator in concrete mixes. At dosages of 0.02–0.05% by cement weight, it accelerates the hydration of C3A and C4AF phases, increasing 1-day and 3-day compressive strengths by 20–40%. It is chloride-free and safe for reinforced concrete.