Top Grade Concrete Accelerator, Huahaifi Brand, Sample Available

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Products Description

RN-2 concrete accelerator is a kind of new accelerating agent, whose technicial performance and economic benefit are superior to that similar products in the domestic market. Cane be widely used in hydropower projects among railway, highway, tunnels, coal mines and hydroelectric areas, and other projects needing the rapid setting technology.

The powder of this product is gray, the liquid is colorless or light yellow. It is weakly alkaline, non-toxic, non-combustible, does not contain chlorine salt, and has no rust effect on steel bar. The powder dosage is 4-6%, and the liquid content is 2-5%, RN-5 concrete quick setting agent has good adaptability to cement, is fast setting and hardening with the initial setting time of less than 5 mins and final setting time is less than 10 minutes. Since the 1d compressive strength is not less than Mpa, and 28d compressive strength is less than 75%, it is in line with the requirment of JC477-005 of "Flash setting admixtures of sprayed concrete". The sprayed concrete prepared with this product has low loss of strengh, low rebound rate and high initial spray thickness, beneficial to improve the quality and durability of sprayed concrete projects with an obvious technical and economic benefits.

Anti-corrosion measures should be taken when using at the site with an accurate measurement. The powder should be used up after opening the bag, while the liquid should be sealed for protection. For the construction of sprayed concrete, it is advisable to use the new portland cement. Because if the ordinary portland cement, slag portland cement are agglomerated by moisture in the low temperature the use effect will be affected. For sprayed concrete, it is prefferred to use pebble or gravel with a large particle size of no less than 20 mm and medium coarse sand with a fineness modulus of 2.8-3.5


1 Year
After-sale Service
Online technical support, Other
Project Solution Capability
total solution for projects, NONE
Design Style
Place of Origin
Brand Name
Product name
Concrete accelerator
Transparent Liquid
Construction Grade
Improves Workability
construction chemical additives
accelerating agent

Packing & Delivery

Company Profile

Hengshui FeiFei Concrete Admixtures Co., Ltd, a high-tech chemical building material company attached to Hebei Hanlin Technology Group, is an expert in researching, developing, producing and selling cement grinding aid, cement raw material, powdered dry mortar agent, wet-mixed mortar agent, concrete admixtures HPMC(hydroxypropyl methyl cellulose),RDP (redispersible emulsion powder ), HPS (hydroxypropyl starch ether) and PVA ( Polyvinyl alcohol powder ). Over the years, we have been dedicated to polymer chemicals and fine chemicals and R&D related to chemical industries. Right now, with a complete quality monitoring facilities, we are a trustworthy employer with 17 engineers and 30 technical consultants. In addition, We have been certificated by ISO9001: 2015 quality management system. We have attached great importance to innovation and expanded our business presence to US, Germany, Italy, New Zealand and Myanmar by introducing cutting edge technology and cooperating with experts home and abroad. In domestic, we have brought considerable profits to our clients and helped them cut down cost by enhancing product quality and performance. We also have made great contribution to construction, high-speed railway and water conservancy projects. We now own 30 transport cars and provide a thorough after-sale service to all the countries. Adhering to a customer-centered working philosophy, we provide all our clients with a whole-hearted service and seek a sustainable development by focusing on quality and service. In a long run, we are ready to make deeply cooperation with partners from all sectors in order to build an environment friendly, energy conserved and emission reduced community for China and the whole world.


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