Buildings, roads, and subways can be found everywhere on the road. These projects require a lot of cement. The role of cement grinding aids is even more important. Today we will take a look at what the grinding aids do.1. The use of grinding aids under the condition that other conditions are unchang
Cement grinding aids are generally divided into two types: production-increasing cement grinding aids and enhanced cement grinding aids. Factors to consider when using cement grinding aids:1. Different raw materials and cement grinding aids are different, and the required moisture is also different.
Cement is a very basic material in the construction industry. The following is a comparison of three monomer cement grinding aids: triethanolamine (TEA), triisopropanolamine (TIPA), and diethanol monoisopropanolamine (DEIPA). The physical and chemical properties of cement have different effects on g
In petroleum extraction, due to the hydration expansion, dispersion, and migration of clay minerals in petroleum reservoirs, permeability decreases, water injection pressure increases, and oil recovery decreases. At present, in the actual production of oil fields, the method of adding clay stabilize
Preventive measures for peeling of concrete pavement1.Strictly control the quality of concrete materials(1) Control of concrete mixing materialsMedium and coarse sand should be selected, and all indicators should be consistent with national standards. The use of washed sand and sea sand is strictly
Concrete has many characteristics, including low price, high wear resistance and durability, and multiple sources of materials. The application of construction engineering to it is very extensive, but during the construction of concrete pavement, because of various reasons, the peeling phenomenon of
Therefore, after the combination of TEA and polycarboxylate superplasticizer, the early strength of the cement test block is significantly improved, the cement setting time is changed to some extent, and the cement dispersibility is slightly reduced. Polycarboxylate superplasticizer is favored by everyone because of its small dosage, high water reduction rate and good compatibility with cement. One of the more important features is that it can add groups with different functions in the main chain. Therefore, it Can be integrated into a variety of functions or have a certain performance to suit different purposes.
TEA) polymerization to obtain intermediate M, and then with isoprenol polyoxyethylene ether (TPEG), acrylic acid (AA) polymerized under aqueous conditions to obtain polycarboxylic acid - Alkanolamine cement grinding aids,
Triethanolamine (TEA) and Triisopropanolamine (TIPA) are used in small amounts as grinding aids in the cement grinding process. TIPA is particularly known to enhance mechanical strength of mortars at 7 and 28 days while TEA does not. A mechanism based on the formation of a soluble TIPA-iron hydroxid
Slag cement has the advantages of low heat of hydration, high strength in the late stage, inhibition of alkali aggregate reaction and sulfate resistance. It has been applied in a large number of projects.
In the produce process of slag cement, the slag is not easily grind than the clinker, If grinding two materil together can not reach their optimum active particle size, and separate grinding will cause a lot of energy consumption, so the grinding process used Grinding aids to reduce grinding energy consumption and improve cement performance.