Polycarboxylic acid superplasticizer is a kind of superplasticizer with the most cutting-edge, the highest technology content, the best application prospect and the best comprehensive performance in the world. Comparison with the performance of similar products at home and abroad shows that the polycarboxylic acid superplasticizer has reached the international advanced level in terms of technical performance indicators and cost performance.
It is a series of water-reducing agents with excellent performance that integrates water reduction, slump retention, reinforcement, anti-shrinkage and environmental protection. It can completely solve the weaknesses of high-strength, high-performance concrete with high viscosity and poor construction performance. It is used to prepare high-strength , An ideal admixture for high-performance concrete. It can be compounded with various admixtures to form a multifunctional admixture, such as pumping agent, early strength agent, impermeable waterproof agent, retarder, etc. www.dongkepce.com
We Dongke Group has been in the additive concrete admixture industry for 15 years. With years of production experience, our production line is more perfect, our products are more abundant, our technology is more mature, and we are constantly introducing new products and leading the market.
There are some points for attention when using polycarboxylate superplasticizer
Avoid contact between polycarboxylic acid water reducer and iron materials
For the production and supplier of polycarboxylic acid water reducing agent, special production equipment and production line shall be used to synthesize and compound polycarboxylic acid system water reducing agent. It is not allowed to use the production line with other water reducing agents to synthesize or compound polycarboxylic acid system water reducing agent. In addition, the transportation and storage of polycarboxylic acid water reducing agent shall not be made of iron (except stainless steel), but plastic, glass and other materials. Contact with iron sometimes causes the change of the performance of polycarboxylic acid water reducing agent.
Resolutely avoid mixing other kinds of admixtures
It is forbidden to mix other water reducing agents or other kinds of admixtures, which has two meanings. One is that the compounding of polycarboxylate superplasticizer (such as lignosulfonate, air entraining, defoaming, retarding and other components) can only be carried out by the additive manufacturer or supplier. The superplasticizer user, that is, the concrete preparer, only needs to check and accept its relevant performance, and shall not compound any other components in it, nor mix other components in it due to negligence.
The use of pumps and metering equipment for pumping and metering other admixtures without cleaning is strictly prohibited. Another meaning is that concrete mixing equipment, transport vehicles and pumping equipment are best fixed for concrete mixed with polycarboxylate superplasticizer. When mixing equipment, transport vehicles and pumping equipment are shared, these equipment must be thoroughly cleaned before they can be used as concrete mixed with other kinds of admixtures, and vice versa.
Strictly measure water reducer and mixing water
When preparing the concrete mixture mixed with polycarboxylate superplasticizer, the best dosage and water consumption determined by the laboratory should be strictly measured, and the dosage or water consumption of superplasticizer should not be increased at will, so as to avoid segregation, bleeding, hardening, air content increase and other adverse phenomena in the mixed concrete, which will affect the normal pumping construction and pouring quality of concrete. The moisture content in raw material sand and stone aggregate must be accurately measured and deducted from the total water consumption, so as to eliminate the adverse consequences caused by inaccurate detection of moisture content in sand and stone aggregate.