Concrete antifreezing agent

Abstract

The invention discloses a concrete antifreezing agent. The concrete antifreezing agent comprises the following component in parts by weight: 35 to 45 parts of macrogol ester, 12 to 25 parts of nitrate, 5 to 6 parts of ethanediol perhydrol, 3 to 8 parts of N-sulfoacid, and 25 to 30 parts of para-melamine. The concrete antifreezing agent has the beneficial effects that 1, the concrete antifreezing agent is a composite product which can obviously improve the peaceability of concrete while improving the early strength, and the dosage is 2 to 5% of the total gum quantity; 2, chloride-free antifreezing admixture serving as the concrete antifreezing agent avoids corrosion of a reinforcing steel bar; 3, the novel antifreezing components adopted greatly decrease the alkali content and also avoid the alkali aggregate reaction in concrete, and the antifreezing agent does not settle and crystallize while being stored under a negative temperature; 4, novel components added do not contain ammonia component, so that no pollution and harm are brought to the environment; 5, the concrete doped with the concrete antifreezing agent is high in durability, i.e.,, the loss rate of the intensity of freezing and thawing at 100 times is less than 5%, and the shrinkage rate at 90 days is less than 120%.

Description

technical field [0001] The invention relates to a concrete antifreeze agent. Background technique [0002] Concrete antifreeze is an admixture that can harden concrete at negative temperatures and achieve expected performance under specified curing conditions. Traditional antifreeze is prone to rust, which has a negative impact on later projects. Contents of the invention [0003] The object of the present invention is to provide a concrete antifreeze agent with good antifreeze effect and no rust for the above-mentioned defects in the prior art. [0004] In order to achieve the above object, the technical solution provided by the present invention is: a concrete antifreeze agent, consisting of the following components in parts by weight: 35-45 parts of polyethylene glycol ester, 12-25 parts of nitrate, perethylene glycol 5-6 parts of alcohol, 3-8 parts of N-sulfonic acid, 25-30 parts of melamine. [0005] Further, the above-mentioned antifreeze agent for concrete consis...

AI Technical Summary

Problems solved by technology

Traditional antifreeze is prone to rust and has adverse effects on later projects