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 is an indispensable basic raw material in the construction of national infrastructure and economic development. However, with the increasing pollution of the environment, the production of cement is still in a high energy consumption industry.Portland mineral cement is widely used in the market.

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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

The effect of triisopropanolamine on water was studied by concrete contrast test.The influence of performance and strength of mud concrete is analyzed. The application of triisopropanolamine in water is analyzed.Economic and social benefits of mud concrete.Key words: triisopropanolamine; concrete; s

Effects of calcium nitrate and triisopropanolamine on the setting and strength evolution of Portland cement pastes

This paper investigated the impacts of sulfate adjustment on strength, hydration and the microstructure of cement with triisopropanolamine (TIPA) to propose the mechanism of early strength enhancement from the microscopic point of view.

Triisopropanolamine (TIPA) is a tertiary amine used in the cement industry as a grinding aid and in formulas of concrete. The addition of small amounts of TIPA can result in a significant increase in the strength of cement pastes at early and late ages [12]. Aggoun et al. [13] investigated the early strength and setting effects of TIPA-TEA-calcium nitrate mixture combinations in ordinary Portland cement and obtained necessary and promising results for both the setting and curing accelerator effects of the amine-calcium nitrate composition. The researcher found that TIPAs curing accelerator performance was higher than TEA regardless of cement type.

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: