Concrete nano water-reducing super high-early-strength agent

Abstract

The invention discloses a concrete nano water-reducing super high-early-strength agent which is capable of remarkably increasing early and late strength of concrete and shortening construction period and simultaneously has good water-reducing performance, plastic retaining performance, corrosion inhibiting performance and stability. The agent comprises the following ingredients: 46-52 wt% of early strength components, 26-32 wt% of water reducing components, 6-15 wt% of corrosion inhibiting components, 4-5 wt% of retarding components, and 6-8 wt% of adjustment components, wherein the early strength components comprise three or four selected from magnesium sulfate, sodium sulfate, sodium nitrite, triethanolamine, sodium thiosulfate, triisopropanolamine, and calcium formate, the water reducing components comprise one selected from naphthalene sulfonic acid high-efficiency water reducer and carboxylic acid water reducer, the corrosion inhibiting components comprise one selected from calcium nitrite, calcium nitrate, potassium chromate, and stannous chloride, the retarding components comprise one selected from sodium gluconate and citric acid, and the adjustment components comprise nano ground calcium carbonate.

Description

technical field

[0001] The invention relates to a concrete admixture, in particular to a concrete nano water-reducing superstructure which can significantly improve the early and late strength of concrete, shorten the construction period, and at the same time have good water-reducing, plastic-retaining, rust-resistance and stability properties. Early strengthening agent. Background technique

[0002] At present, in order to improve the performance of concrete and meet the needs of concrete construction, various concrete admixtures have emerged as the times require, such as early strength agents, water reducing agents, retarders, pumping agents and antifreeze agents. The main function of the early strength agent is to accelerate the hydration speed of cement, improve the early strength of concrete and have no significant effect on the later strength, shorten the time of form removal, improve the turnover rate of formwork and implement prestress tension as early as possible, e...

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