Fly ash activator

Abstract

The invention discloses a fly ash activator, relates to the technical field of materials for improving fly ash activity, and specifically relates to a fly ash activator. The fly ash activator is prepared by homogenizing and stirring the following raw materials in parts by weight: 10 to 30 parts of alum stone, 10 to 20 parts of anhydrous sodium sulphate, 10 to 20 parts of calcium chloride, 10 to 20 parts of sodium hydroxide, and the balance being fly ash or stone flour. The fly ash activator can effectively activate the potential activity of fly ash, increases the addition amount of fly ash, and reduces the amount of cement in concrete. The cost of the activator is maximally reduced at the same time. The fly ash activator can increase the economic profits and social profits of the industry of concrete and products thereof on the basis that the technical effect is not affected, and can realize the energy saving and emission reduction at the same time.

Description

technical field [0001] The invention relates to the technical field of improving fly ash active materials, in particular to a fly ash activator. Background technique [0002] At present, there are many measures to improve the activity of fly ash at home and abroad, which can be summarized as mechanical activation, chemical activation, physical activation and so on. The trend of domestic comprehensive utilization of fly ash is to pay attention to the direct application of the discharged fly ash, and to strive for high dosage, which reduces the cost of concrete and has high economic and social benefits. Therefore, the study of fly ash activator has always been an important subject of comprehensive utilization of fly ash. Exciters include alkali excitation (calcium oxide, sodium hydroxide), sulfate excitation (gypsum, sodium bicarbonate), chloride excitation (sodium chloride, calcium chloride), etc. The problem existing in the current activator is that the material is single...

AI Technical Summary

Problems solved by technology

The problem with the current activator is that the materials used are single. When the above-mentioned inorganic substances such as alkali and salt are mixed more, it will cause some adverse consequences, such as whitening, corrosion of steel bars, and damage to the durability of concrete due to alkali-aggregate reactions.

In addition, the cost of the activator is high, which leads to the insignificant economic benefits brought by the use of the activator and affects the promotion of the activator.

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