Hangzhou Ray Concrete Admixture Inc.

Hangzhou Ray Concrete Admixture Inc. is located in Hangzhou, China and currently lists five active products in its catalogue. The company is classified as an imported supplier with a harbor trust tier. Its catalogue focuses on construction and waterproofing chemicals as well as industrial chemical additives. The product list includes sodium lignosulphonate, polycarboxylate superplasticizer, cement grinding aids, asphalt antistripping agent, and sodium gluconate. Each item is positioned for use in concrete, cement, and asphalt formulations.

Among the five items, sodium gluconate is recorded under HS code 2918.16 and is identified as the sodium salt of D‑gluconic acid (NaC6H11O7). The remaining four products fall under the broader chemical admixture segment and are commonly classified within HS chapter 38 for organic chemicals. The supplier’s top categories also reference concrete mixer and pump equipment, indicating a broader focus on concrete technology. This factual overview reflects the concrete admixture niche that the company serves.

The catalogue offers sodium lignosulphonate, a lignin‑based dispersant typically supplied with 85‑90 % purity and a moisture content below 5 %. Polycarboxylate superplasticizer is provided as a high‑range water reducer, usually achieving a water‑reduction efficiency of 20‑30 % at dosages of 0.2‑0.5 % by cement weight. Cement grinding aids are presented as organic compounds that improve mill efficiency, often characterized by a flash point above 150 °C and a particle size below 10 µm. Asphalt antistripping agents are formulated to enhance binder adhesion, commonly delivering a minimum adhesion strength of 0.7 MPa. Sodium gluconate is supplied as a crystalline powder with purity ≥99 % and is used as a set retarder or corrosion inhibitor.

Industry practice for these admixtures includes bulk shipping in 25 kg drums or 20 ft containers, with product safety data sheets accompanying each batch. Standard specifications such as ISO 9001 quality management and compliance with REACH (for the EU) are routinely required by importers.