Cement companies generally roughly divide grinding aids into two categories, "enhancing" and "increasing production." How should I choose? It is generally thought that if you want to increase the strength, you choose the "enhanced" grinding aid, and if you want to increase production or save electri

The slag cement has the advantages of low heat of hydration, high strength at the later stage, inhibition of alkali aggregate reaction, and resistance to sulfate corrosion, and has been used in a large number of projects. When producing slag cement, the slag is less abrasive than the clinker. So how does slag cement behave under the action of TEA and TIPA?

Cement grinding aid companies, as promoters of introducing grinding aid products into cement production, guide cement enterprises to correctly understand and use cement grinding aids, and help cement enterprises correctly judge certain problems in the application process of grinding aids, which will

Triethanolamine is a colorless to pale yellow viscous liquid. It can react with various acids to form esters and amide salts. It can also corrode copper, aluminum and its alloys. Triethanolamine has a wide range of effects. what's the effect? What is its main use?1. Used as plasticizer, neutralizer,

In the past 40 years, the application of water-reducing agents in concrete has developed rapidly. As a new generation of water-reducing agents, polycarboxylic acid-based water-reducing agents have become an essential component for the preparation of high-performance concrete.

Cement is a very basic material in the construction industry and plays a very important role in the development of the national economy. China is a big cement producer. In 2011, China's cement output reached 2.09 billion tons, and cement production has exceeded in recent years. 8% of the speed increase. However, the energy consumption in the cement production process is high and the utilization rate is low, mainly due to the accumulation of fine powder particles during the grinding process, which causes the paste ball and the adhesive liner to reduce the grinding efficiency, so that about 80% to 90% % of the energy is consumed in the form of heat. In order to improve this situation, it is common in the industry to add a small amount of grinding aid to the grinding material to improve the grinding efficiency and reduce the grinding energy consumption. At the same time, grinding aids can also increase production (many studies have shown that grinding aids can increase cement production b

Milling aids have been predominantly developed to increase the performance or grinding capacity of cement products, and alcohol amines have been used as grinding aids in cement grinding processes for many years. Moreover, the setting point of cement produced with grinding aids is most often changed. In this study, the effects of alkanolamines and boron compounds in different mixing amounts as grinding aids on the set point of cement were researched. Triethanolamine (TEA) and triisopropanolamine (TIPA) were used as alkanolamines and boric acid (BA) and anhydrous borax (AHB) as the boron compounds. It is evident that BA with TEA had a small effect on the cement setting point where the former decreased the retarding effect of the latter, but BA had no effect with TIPA. AHB decreased the retarding effect of TEA but had no effect with TIPA on setting times. When the boron compounds were added to TEA, they accelerated the initial setting points of cement by 15 to 20 minutes and the final set

Diethanolisopropanolamine (DEIPA85%) has similar or comparable basic characteristics-dispersibility compared with triisopropanolamine and triethanolamine in cement and cement concrete additives, but its comprehensive performance has obvious advantages. According to the statistical results, under the same conditions, the early strength is higher or lower than that of triethanolamine, and the late strength is much higher than that of triethanolamine. The early strength is much higher than that of triisopropanolamine, and the later strength is lower than that of triisopropanolamine. Its specific characteristics are as follows:

The hydration hardening property of cement determines the early strength of concrete. Under standard conditions, the strength can only reach 20%~30% of the design strength and the strength of 3d reaches 40%. Under the low temperature condition in winter, the strength development rate will become Lower. Concrete early strength agent is an admixture that accelerates the early strength development of concrete, and its content generally does not exceed 5% of the mass of cement. At room temperature (20±3) °C, the concrete with early strength agent can reach the demoulding strength for 10h, usually up to 50% of the design strength at 1d, and the strength of the reference concrete for 28d at 3d.

By comparing the physicochemical properties of three monomer cement grinding aids: triethanolamine (TEA), triisopropanolamine (TIPA) and diethanol monoisopropanolamine (DEIPA), production methods and their aid to cement grinding and cement Different effects of performance, and analysis of possible ccauses and mechanisms of impact, and forecast their market development prospects.