In the construction process of highway engineering, concrete is an extremely important building material, which has a relatively large impact on the quality of highway engineering construction. In the concrete construction process, in order to ensure the performance of the concrete and improve the applicability of the concrete, an admixture is generally added to the concrete. As an indispensable part of concrete, concrete admixture can significantly improve the quality of concrete by adding admixture to concrete, improve the performance of concrete, reduce the amount of cement in concrete, and save construction costs. In the actual application process, different types of admixtures have different functions. In practical applications, they should be carefully selected and applied reasonably to ensure the construction quality of concrete. Therefore, it is necessary to correctly understand the concrete admixture so as to fully exert the effect of the admixture.

　Cement grinding aids play an important role in the cement industry, especially during the “low carbon” period, in order to clean the environment and improve energy efficiency. Cement grinding aids have become recognized as important cement additives because they can effectively shorten the grinding time, improve cement performance, and save energy and reduce emissions. Therefore, it is very important to develop the grinding aid product process. At present, there are many literatures and work on the development of cement grinding aid products, including: one-component type, such as triethanolamine, glycerol, ethylene glycol, phosphate, molasses, etc. Ethanolamine is the representative. The effects of the components on the cement grinding effect, energy saving and cement strength are investigated. The results show that triethanolamine has a good effect on cement grinding. The series compounding type, this kind of grinding aid reduces the cost of raw materials and improves the auxiliary.

Haisen Chemical has a development history of more than 20 years. It has its own factory and team. It is a manufacturing R&D enterprise combining domestic and foreign trade. We mainly produce triethanolamine, mother liquor and monomer of polycarboxylate water reducer, diethanol monoisopropanolamine, polyethylene glycol, cement grinding aid and other products. Among the customers we have worked with, the feedback is still relatively good. Horizon Admixtures always think truly lasting economic performance from honest business, we believe"STRENUOUSNESS MAKES GOOD ACHIEVEMENT HONESTY MAKES GOOD BUSINESS QUANLITY FIRST CUSTOMERS SUPREME " Horizon supply superior products and perfect services, working togethrt with friends from home and abroad for win-win future.

The cement industry is a high-energy-consuming industry, and the energy consumption in the cement grinding process accounts for a large proportion in the whole production process, of which electricity consumption accounts for 60%-70%, and its energy utilization rate is extremely low. About 97% of the energy consumed in the grinding process becomes a waste of heat, and only a small part of the energy increases the surface area of the material, in order to reduce energy consumption, save energy, and improve grinding efficiency.

TIPA is a rectification separation of ammonia and propylene oxide after addition reaction. Triisopropanolamine can be widely used in daily chemical, fine chemical, petrochemical, etc., and is an important amine compound. TIPA is the core material for cement grinding aids, and triisopropanolamine is also an organic reinforcing agent for cement concrete. As a cement grinding aid and concrete early strength agent, TIPA is generally considered to significantly increase the 28-day compressive strength of cement mortar.

How to better play the role of cement grinding aid With the rapid development of China's cement industry and the country's high attention to energy conservation and emission reduction, cement grinding aids have become a must for cement enterprises, and also bring significant economic benefits to many cement companies. Correct selection and use of cement grinding aids suitable for the actual conditions and production conditions of the enterprise can not only greatly increase the output of cement platforms, improve the performance of cement, but also reduce the consumption of clinker and increase the amount of mixed materials. The use of resources to reduce emissions of carbon dioxide, nitrogen oxides, etc., to save energy and reduce environmental protection, improve economic and social benefits, and greatly enhance the competitiveness of cement companies in the market.

We can draw the following conclusions: (1) TEA, TIPA and DEIPA are good cement grinding aids and have good grinding aids. (2) TEA has excellent early strength improvement, but it can not even weaken the late strength of cement; TIPA can not promote the early strength of cement, but can improve the characteristics of late strength; DEIPA has the advantages of both, for early strength And the late strength has been significantly improved. (3) Due to the prevalence of chloride salt early strength agents and triisopropanolamine compared with triethanolamine, there are many advantages in terms of dispersibility, age enhancement, application conditions and relative cost, so the application is gradually increasing. , an increasingly widespread replacement of triethanolamine. (4) Diethanol monoisopropanolamine has a strong advantage in strength of both early strength and late strength, and will replace triethanolamine and triisopropanolamine.

Latest research and development progress and market development trend of China's concrete admixture industry The China Building Materials Federation Concrete Admixture Branch conducts a nationwide survey on the production of concrete admixtures every two years. The purpose is to grasp the latest developments in the industry and provide an accurate basis for formulating industry development policies. The investigation has been going on for more than ten years.

At present, the domestic grinding and grinding agents for research and application are liquid and solid. The formula consists mainly of single or composite products such as amines, polyols and acetates. The basic components are mostly organic surface active substances. Triethanolamine and ethylene glycol are highly polar surfactants and are used as cement grinding aids.

Research progress and development trend of cement grinding aids The application of cement grinding aids has become more and more intensive with the development of the cement industry. Since domestic cement production accounts for more than 60% of the world's total output, and most of the production cement is taken locally, the research on cement grinding aids has been active, while abroad. Research is relatively mature, in relative。Stagnant state. The new multi-functional grinding aid has always been the development trend of grinding aids. As the price of cement declines, the use of grinding aids has become the focus of attention in the future.