HXB-I Common Pumping Aid

HXB-I common pumping aid for concrete consists of superplasticizer, retarder, air entrainer and correction raw materials

I.Product Overview

      HXB-I common pumping aid for concrete consists of superplasticizer, retarder, air entrainer and correction raw materials. With addition of type HXB-I common pumping aid, the concrete properties can meet the requirements of first-class products specified in Chinese JC473-2001 “concrete pumping aid”. The product is applicable to the concrete of middle and low strength grade. The addition of HXB-I common pumping aid not only can increase the mobility of concrete, conducive to concrete pumping, but also can save a certain amount of cement, delay the release of hydration heat, reduce temperature stress, avoid temperature cracks and reduce dry shrinkage,

II.Main Characteristics

       1,Strengthening performance: With the same slump and the same cement content as the reference concrete, the water reduction rate for the concrete containing HXB-I pumping aid reaches up to 8 to 14 percent, the concrete strength at three to seven days has increased by 20 to 30 percent, and the strength at 28 days increased further;

       2,Pumping performance: Under the premise of the same water-cement ratio as compared with the reference concrete, the slump of the concrete with HXB-I pumping aid is significantly increased by a net increase ≥ 80 mm, and slump loss at one hour <20%, therefore the pumpability is much improved;

       3,Retarding effect: As the mobility of the concrete added with the pumping aid can significantly increase, the concrete placing is much improved. The exothermic peak of cement hydration delays, avoiding the phenomenon of cold joints between two layers of placing, which effectively enhances its anti-cracking and waterproof properties;

       4,Workability improved: The operational properties of the fresh concrete such as workability, water retention and bleeding are improved.

HXB-I Common Pumping Aid