Collapse prevention type water reducing agent

Abstract

The invention discloses a collapse prevention type water reducing agent which is prepared by mixing the following raw materials in parts by weight: 48-62 parts of methyl naphthalenesulfonate formaldehyde condensate, 24-36 parts of polycyclic aromatic hydrocarbon sulfonate formaldehyde condensate, 16-28 parts of glycerinum polyoxyethylene ether ethylhexoate, 15-20 parts of porous calcium phosphate, 10-15 parts of rock wool powder, 5-10 parts of sodium polystyrenesulfonate, 5-10 parts of aloe powder, 4.5-6.5 parts of squalane, 3-5 parts of diisobutyl methanol, 2-4 parts of sodium alginate oligose, 2.5-4.5 parts of sodium hyaluronate, 6-12 parts of sand powder, 10-15 parts of volcanic ash, 3-6 parts of lauric acid diglycollic amide, 4-8 parts of hydroxypropyl guar gum powder and 3-6 parts of additives. The collapse prevention type water reducing agent disclosed by the invention is excellent in collapse prevention, small in collapse loss and high in water reduction rate, can avoid separation or bleeding, and is remarkable in concrete reinforcement effect, good in concrete adaptability and particularly good in adaptability for middle / low flowbility concrete in a high-temperature environment in summer.

Description

technical field [0001] The invention relates to a slump-retaining water reducer, which belongs to the field of concrete admixtures. Background technique [0002] Concrete admixtures, referred to as admixtures for short, refer to substances that are added to improve the performance of concrete before or during the mixing of concrete. Because admixtures can effectively improve the performance of concrete and have good economic benefits, they have been widely used in many countries, and their application in engineering has attracted more and more attention, becoming an indispensable material in concrete. Among them, the slump-preserving water-reducing agent is one of the concrete admixtures, which can keep the slump of the concrete from losing quickly and achieve the effect of maintaining the slump. The slump-retaining water-reducing agents currently used in the market still have the defects of short slump retention time and high-temperature failure, and their water-reducing p...

AI Technical Summary

Problems solved by technology

The slump-retaining water-reducing agents currently used in the market still have the defects of short slump retention time and high-temperature failure, and the water-reducing performance is poor, which cannot meet the construction requirements of high-performance concrete.

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