Preparation method of admixture taking kieselguhr as main raw material

Abstract

The invention discloses a preparation method of an admixture taking kieselguhr as a main raw material. The admixture taking kieselguhr as a main raw material comprises the following components in parts by weight: 25-30 parts of kieselguhr, 25-30 parts of dickite, 15-20 parts of montmorillonite, 10-15 parts of allophane, 15-25 parts of vermiculite, 15-20 parts of mirabilite, 3-4 parts of polyvinyl alcohol, 3-4 parts of iron chloride, 1-3 parts of borax, 2-4 parts of gypsum, 2-3 parts of sodium silicate, 1-2 parts of ferrous sulfate, 2-3 parts of methyl cellulose and 1-2 parts of sodium carbonate. In the preparation method disclosed by the invention, the raw materials of the admixture taking kieselguhr as a main raw material are easily available, and the production process is simple and easy for producing products; when in use, the preparation method is convenient and can be uniformly used and meets the production stability; moreover, the production efficiency is improved, and the cost is saved.

Description

technical field [0001] The invention relates to an admixture with diatomite as the main raw material, which is an admixture for building concrete and belongs to the field of building material manufacturing. Background technique [0002] The mechanism of action of different mineral admixtures in concrete is not the same. Mineral admixtures can improve the performance of some aspects of concrete, but also affect the performance of other aspects. For example, silica fume can improve the strength and durability of concrete, but the need for silica fume If the amount of water is large, the dosage is limited, and the self-drying shrinkage of concrete mixed with silica fume will also increase; the water demand of mineral powder is not large, and the early strength of concrete mixed with mineral powder is slightly lower, and the self-drying shrinkage increases; The self-drying shrinkage of fly ash concrete is small, and the use of high-quality fly ash can reduce the water demand of ...

AI Technical Summary

Problems solved by technology

[0002] The mechanism of action of different mineral admixtures in concrete is not the same. Mineral admixtures can improve the performance of some aspects of concrete, but also affect the performance of other aspects. For example, silica fume can improve the strength and durability of concrete, but the need for silica fume If the amount of water is large, the dosage is limited, and the self-drying shrinkage of concrete mixed with silica fume will also increase; the water demand of mineral powder is not large, and the early strength of concrete mixed with mineral powder is slightly lower, and the self-drying shrinkage increases; The self-drying shrinkage of fly ash concrete is small, and the use of high-quality fly ash can reduce the water demand of concrete to a certain extent, but the carbonation resistance of fly ash concrete will decrease to a certain extent, etc.